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外文翻译 - 英文

外文翻译 - 英文

The smart gridSmart grid is the grid intelligent (electric power), also known as the "grid" 2.0, it is based on the integration, high-speed bidirectional communication network, on the basis of through the use of advanced sensor and measuring technology, advanced equipme nt technology, the advancedcontrol method, and the application of advanced technology of decision support system, realize the power grid reliability, security, economic, efficient, environmental friendly and use the security target, its main features include self-healing, incentives and include user, against attacks, provide meet user requirements of power quality in the 21st century, allow all sorts of different power generation in the form of access, start the electric power market and asset optimizatio n run efficiently.The U.S. department of energy (doe) "the Grid of 2030" : a fully automated power transmission network, able to monitor and control each user and power Grid nodes, guarantee from power plants to end users among all the nodes in the whole process of transmission and distribution of information and energy bi-directional flow.China iot alliance between colleges: smart grid is made up of many parts, can be divided into:intelligent substation, intelligent power distribution network, intelli gent watt-hourmeter,intelligent interactive terminals, intelligent scheduling, smart appliances, intelligent building electricity, smart city power grid, smart power generation system, the new type of energy storage system.Now a part of it to do a simple i ntroduction. European technology BBS: an integration of all users connected to the power grid all the behavior of the power transmission network, to provide sustained and effective economic and security of power.Chinese academy of sciences, institute of electrical: smart grid is including all kinds of power generation equipment, power transmission and distribution network, power equipment and storage equipment, on the basis of the physical power grid will be modern advanced sensor measurement technology, network technology, communicationtechnology, computing technology, automationand intelligent control technology and physical grid highly integrated to form a new type of power grid, it can realize the observable (all the state of the equipment can monitor grid), can be controlled (able to control the power grid all the state of the equipment), fully automated (adaptive and self-healing) and system integrated optimization balance (power generation, transmission and distribution, and the optimization of the balance between electricity), so that the power system is more clean, efficient, safe and reliable.American electric power research institute: IntelliGrid is a composed of numerous automation system of power transmission and distribution power system, in a coordinated, effective and reliable way to achieve all of the power grid operation: have self-healing function;Rapid response to the electric power market and enterprise business requirements;Intelligent communication architecture, realizes the real-time, security, and flexible information flow, to provide users with reliable, economic power services. State grid electric power research institute, China: on the basis of the physical power grid (China's smart grid is based on high voltage network backbone network frame, different grid voltage level based on the coordinated development of strong power grid), the modern advanced sensor measurement technology, communication technology, information technology, computer technology and control technology and the physical power grid highly integrated to form a new type of power grid.It to fully meet user demand for electricity and optimize the allocation of resources, guarantee the safety, reliability and economy of power supply, meet environmental constraints, ens ure the quality of electric energy, to adapt to the development of power market, for the purpose of implementing the user reliable, economic, clean and interactive power supply and value-added services.BackgroundStrong smart grid development in the wor ld is still in its infancy, without a common precisely defined, its technology can be roughly divided into four areas: advanced Measurement system, advanced distribution operation, advanced transmission operation and advanced asset management.Advanced meas urement system main function is authorized to the user, make the system to establish a connection with load, enabling users to support the operationof the power grid;Advanced core distribution operation is an online real-time decision command, goal is to disaster prevention and control, realizing large cascading failure prevention;Advanced transmission operation main role is to emphasize congestion ma nagement and reduce the risk of the large-scale railway;Advanced asset management is installed in the system can provide the system parameters and equipments (assets) "health" condition of advanced sensor, and thereal-time information collected by integrat ion and resource management, modeling and simulation process, improve the operation and efficiency of power grid.The smart grid is an important application of Internet of things, and published in the journal of computer smart grid information system archit ecture research is carried on the detailed discussion on this, and the architecture of the smart grid information system are analyzed.The market shareThe establishment of the smart grid is a huge historical works.At present many complicated smart grid project is underway, but the gap is still great.For the provider of the smart grid technology, promote the development of facing the challenges of the distribution network system i s upgrading, automation and power distribution substation transportation, smart grid network and intelligent instruments.According to the latest report of parker investigators, smart grid technology market will increase from $2012 in 33 billion to $2020 in 73 billion, eight years, the market accumulated up to $494 billion.China smart grid industry market foresight and investment forward-looking strategic planning analysis, points out that in our country will be built during the "twelfth five-year""three vertical and three horizontal and one ring" of uhv ac lines, and 11 back to u hv dc transmission project construction, investment of 300 billion yuan.Although during the period of "much starker choices-and graver consequences-in" investment slowed slightly, the investment is 250 billion yuan.By 2015, a wide range of national power grid, long distance transmission capacity will reach 250 million kilowatts, power transmission of 1.15 trillion KWH per year, to support the new 145 million kilowatts of clean energy generation given and sent out, can satisfy the demand of morethan 1 million electric cars, a grid resource configuration optimization ability, economic efficiency, safety and intelligent levels will be fully promoted.The abroad application of analysisIn terms of power grid development foundation, national electricity dema nd tends to be saturated, the grid after years of rapid development, architecture tends to be stable, mature, have a more abundant supply of electric power transmission and distribution capacity.Germany has "E - Energy plan, a total investment of 140 million euros, from 2009 to 2012, four years, six sites across the country to the smart grid demonstration experiment.At the same time also for wind power and electric car empirical experiments, testing and management of power consumption of the Internet.Big companies such as Germany's Siemens, SAP and Swiss ABB are involved in this plan.To smart grid Siemens 2014 annual market scale will reach 30 billion euros, and plans to take a 20% market share, make sure order for 6 billion euros a year.The advanced nat ureCompared with the existing grid, smart grid, reflects the power flow, information flow and business flow marked characteristics of highly integration, its advancement and advantage mainly displays in:(1) has a strong foundation of grid system and te chnical support system, able to withstand all kinds of external disturbance and attacks, can adapt to large-scale clean energy and renewable energy access, strong sex of grid reinforced and ascend.(2) the information technology, sensor technology, automatic control technology organic combination with power grid infrastructure, a panoramic view of available power grid information, timely detection, foresee the possibility of failure.Fault occurs, the grid can be quickly isolate fault,realize self recovery,to avoid the occurrence of blackouts.(3) flexible ac/dc transmission, mesh factory coordination, intelligent scheduling, power storage, and distribution automation technology widespread application, makes the control of power grid operation more flexibl e,economic, and can adapt to a large number of distributed power supply, power grid and electric vehicle charging and discharging facility access.(4) communication, information, and the integrated use of modern management technology, will greatly improve the efficiency of power equipment, and reduce the loss of electrical power, making the operation of power grid is more economic and efficient.(5) the height of the real-time and non real-time information integration, sharing and utilization, to run the show management comprehensive, complete and fine grid operation state diagram, at the same time can provide decision support, control scheme and the corresponding response plans.(6) to establish a two-way interactive service mode, users can real-time understand the status of the power supply ability, power quality, price and power outage information, reasonable arrangement of electric equipment use;The electric power enterprise can obtain the user's electricity information in detail, to provide more value-added services.developmentaltrend"Twelfth five-year" period, the state grid will invest 500 billion yuan to build the connection of large ene rgy base and center of the "three horizontal three longitudinal" main load of ultra high voltage backbone network frame and 13 back to long branch, engineering, to form the core of the world first-class strong smart grid."Strong smart grid technology standards promulgated by the state grid system planning", has been clear about the strong smart grid technology standards roadmap, is the world's first used to guide the development of smart grid technology guiding standards.SGC planning is to built 2015 basic information, automation, interaction characteristics of strong smart grid, formed in north China, central China, east China, for the end to the northwest and northeast power grid for sending the three synchronous power grid, the grid resource allocati on ability, economic efficiency and safety level, technology level and improve intelligent level.(1) the smart grid is the inevitable developing trend ofpower grid technology.Such as communication, computer, automation technology has extensive applicati on in the power grid, and organic combination with traditional electric power technology, and greatly improve the intelligent level of the power grid.Sensor technology and information technology application in the power grid, the system state analysis and auxiliary decision provides the technical support, make it possible to grid self-healing.Scheduling technology, automation technology and the mature development of flexible transmission technology, for the development and utilization of renewable energy an d distributed power supply provides the basic guarantee.The improvement of the communication network and the popularization and application of user information collection technology, promote the two-way interaction with users of the grid.With the further development of various new technologies, application and highly integrated with the physical power grid, smart grid arises at the historic moment.(2) the development of smart grid is the inevitable choice of social and economic development.In order to ach ieve the development of clean energy, transport and given power grid must increase its flexibility and compatibility.To withstand the increasingly frequent natural disasters and interference, intelligent power grid must rely on means to improve its securit y defense andself-healing ability.In order to reduce operating costs, promote energy conservation and emissions reduction, power grid operation must be more economic and efficient, at the same time must to intelligent control of electric equipment, reduce electricity consumption as much as possible.Distributed generation and energy storage technology and the rapid development of electric cars, has changed the traditional mode of power supply, led power flow, information flow, business flow constantly fusion, in order to satisfy the demands of increasingly diverse users.PlanJapan plans to all the popularity of smart grid in 2030, officer of the people at the same time to promote the construction of overseas integrated smart grid.In the field of battery, Japanese firms' global market share goal is to strive to reach 50%, with about 10 trillion yen in the market.Japan's trade ministry has set up a "about the next generation of energy systems international standardizationresearch institute", the japan-american established in Okinawa and Hawaii for smart grid experimental project [6].Learns in the itu, in 2020 China will be built in high power grid with north China, east China, China as the center, northeast, northwest 750 kv uhv power grid as the sending, connecting each big coal base, large hydropower bases, big base for nuclear power, renewable energy base, the coordinated development of various grid strong smart grid.In north China, east China, China high voltage synchronous ZhuWangJia six "five longitudi nal and transverse" grid formation.The direction ofIn the green energy saving consciousness, driven by the smart grid to become the world's countries to develop a focus areas.The smart grid is the electric power network, is a self-healing, let consum ers to actively participate in, can recover from attacks and natural disasters in time, to accommodate all power generation and energy storage, can accept the new product, service and market, optimize asset utilization and operation efficiency, provide qua lity of power supply for digital economy.Smart grid based on integrated, high-speed bidirectional communication network foundation, aims to use advanced sensor and measuring technology, advanced equipment, technology and advanced control methods, and adv anced technology of decision support system, realize the power grid reliability, security, economic, efficient, environmental friendly, and the use of safe run efficiently.Its development is a gradual progressive evolution, is a radical change, is the product of the coordinated development of new and existing technologies, in ad dition to the network and smart meters also included the wider range.Grid construction in high voltage network backbone network frame, all levels of the coordinated development, informatization, automation, interaction into the characteristics of strong smart grid, improve network security, economy, adaptability and interactivity, strength is the foundation, intelligence is the key.meaningIts significance is embodied in the foll owing aspects:(1) has the strong ability of resources optimization allocation.After the completion of the smart grid in China, will implement the big water and electricity, coal, nuclear power, large-scale renewable energy across regions, long distance, large capacity, low loss, high efficiency, regional power exchange capacity improved significantly.(2) have a higher level of safe and stable operation.Grid stability and power supply reliability will be improved, the safety of the power grid close coord ination between all levels of line, have theability to against sudden events and serious fault, can effectively avoid the happening of a wide range of chain failure, improve power supply reliability, reduce the power loss.(3) to adapt and promote the dev elopment of clean energy.Grid will have wind turbines power prediction and dynamic modeling, low voltage across, and active reactive power control and regular units quickly adjust control mechanism, combined with the application of large capacity storage technology, the operation control of the clean energy interconnection capacity will significantly increased, and make clean energy the more economical, efficient and reliable way of energy supply.(4)implementing highly intelligent power grid scheduling.Co mpleted vertical integration, horizontal well versed in the smart grid scheduling technology support system, realize the grid online intelligent analysis, early warning and decision-making, and all kinds of new transmission technology and equipment of effi cient control and lean control of ac/dc hybrid power grid.(5)can satisfy the demands of electric cars and other new type electric power user services.Would be a perfect electric vehicle charging and discharging supporting infrastructure network, can meet the needs of the development of the electric car industry, to meet the needs of users, realize high interaction of electric vehicles and power grid.(6) realize high utilization and whole grid assets life cycle management.Can realize electric grid system of the whole life cycle management plan.Through smart grid scheduling and demand side management, power grid assets utilization hours, power grid assets efficiency improvedsignificantly.(7) to realize power convenient interaction between the user and the grid.Will form a smart electricity interactive platform, improving the demand side management, to provide users with high-quality electric power service.At the same time, the comprehensive utilization of the grid can be distributed power supply, intelli gent watt-hour meter, time-sharing electricity price policy and the electric vehicle charging and discharging mechanism, effectively balance electric load, reduce the peak valley load difference, reduce the power grid and power construction costs.(8)grid management informatization and the lean.Covering power grid will each link of communication network system, realize the power grid operation maintenance integrated regulation, data management, information grid spatial information services, and production and scheduling application integration, and other functions, to realize all-sided management informatization and the lean.(9) grid infrastructure of value-added service potential into full play.In power at the same time, the national strategy of "triple play" of services, to provide users with community advertising, network television, voice and other integrated services, such as water supply, heating, gas industry informatization, interactive platform support, expand the range of value-added services and improve the grid infrastructure and capacity, vigorously promote the development of smart city.(10)Gridto promote the rapid development of related industries.Electric power industry belongsto the capital-intensive and technology-intensive industry, has the characteristics of huge investment, long industrial chain.Construction of smart grid, which is beneficial to promote equipment manufacturing information and communication industry technology upgrade, for our country to occupy the high ground to lay the foundation in the field of electric power equipment manufacturing.Important significanceLife is convenientThe construction of strong smart grid, will promote the development of intelligent community, smart city, improve people's quality of life.(1) to make life more convenient.Home intelligent power system can not onlyrealize the real-time control of intelligent home appliances such as air conditioning, water heater and remote control;And can provide telecommunication network, Internet, radio and television network access services;Through intelligent watt-hour meter will also be able to achieve au tomatic meter reading and automatic transfer fee, and other functions.(2) to make life more low carbon.Smart grid can access to the small family unit such as wind power and photovoltaic roof, pushing forward the large-scale application of electric cars, so as to raise the proportion of clean energy consumption, reduce the pollution of the city.(3) to make life more economical.The smart grid can promote power user role transformation, both electricity and sell electricity twofold properties;To build a family for the user electricity integrated services platform, to help users choose the way of electricity, save energy, reduce the energy expense.Produce benefitThe development of a strong smart grid, the grid function gradually extended to promote the optim al allocation of energy resources, guarantee the safe and stable operation of power system, providing multiple open power service, promote the development of strategic emerging industries, and many other aspects.As China's important energy delivery and configuration platform, strong and smart grid from the investment construction to the operation of production process will be for the national economic development, energy production and use, environmental protection bring great benefits.(1)in power system.Can save system effective capacity;Reducing the system total power generation fuel cost;Improving the efficiency of grid equipment, reduce construction investment;Ascension grid transmission efficiency, reduce the line loss.(2)in terms of power customers.Can realize the bidirectional interaction, to provide convenient services;Improving terminal energy efficiency, save power consumption;To improve power supply reliability, and improve power quality.(3) in the aspect of energy saving and environment.Can improve the efficiency of energy utilization, energy conservation and emissions reduction benefit.To promote clean energy development, realize the alternative reductionbenefits;Promote the overall utilization of land resources, saving land usage.(4) other aspects.Can promote the economic development, jobs;To ensure the safety of energy supply;Coal for power transmission and improve the efficiency of energy conversion, reducing the transportation pressure.Propulsion system(1) can effectively improve t he security of power system and power supply e of strong smart grid "self-healing" function, can accurately and quickly isolate the fault components, and in the case of less manual intervention make the system quickly returned to normal, so as to improve the security and reliability of power supply system.(2) the power grid to realize the sustainable development.Strong smart grid technology innovation can promote the power grid construction, implementation technology, equipment, operation an d management of all aspects of ascension, to adapt to the electric power market demand, promote the scientific and sustainable development of power grid.(3) reduce the effective ing the power load characteristics in different regions of the ch aracteristics of big differences through the unification of the intelligent dispatching, the peakand peak shaving, such as networking benefit;At the same time through the time-sharing electricity price mechanism, and guide customers low power, reduce the peak load, so as to reduce the effective capacity.(4) to reduce the system power generation fuel costs.Construction of strong smart grid, which can meet the intensive development of coal base, optimization of power distribution in our country, thereby red ucing fuel transportation cost;At the same time, by reducing the peak valley load difference, can improve the efficiency of thermal power unit, reduce the coal consumption, reduce the cost.(5)improve the utilization efficiency of grid equipment.First of all, by improving the power load curve, reduce the peak valley is poor, improve the utilization efficiency of grid equipment;Second, by self diagnosis, extend the life of the grid infrastructure.(6) reduce the line loss.On the important basis of uhv transmission technology of strong smart grid, will greatly reduce the loss rate in the electric power transmission;Intelligent scheduling system, flexible transmission technology and real-time two-way interaction with customers, can optimize the tide distribut ion, reducing line loss;At the same time, the construction and application of distributed power supply, also reduce the network loss of power transmission over a long distance.Allocation of resourcesEnergy resources and energy demand in the reverse distribution in our country, more than 80% of the coal, water power and wind power resource distribution in the west, north, and more than 75% of the energy demand is concentrated in the eastern and central regions.Energy resources and energy demand unbalance d distribution of basic national conditions, demand of energy needs to be implemented nationwide resource optimizing configuration.The construction of strong smart grid, for optimal allocation of energy resources provides a good platform.Strong smart grid is completed, will form a strong structure and sending by the end of the power grid power grid, power capacity significantly strengthened, and the formation of the intensity, stiffness of uhv power transmission network, realize the big water and electricit y, coal, nuclear power, large-scale renewable energy across regions, long distance, large capacity, low loss, high efficiency transport capacity significantly increased power a wide range of energy resources optimization.Energy developmentThe development and utilization of clean energy such as wind power and solar energy to produce electricity is given priority to, in the form of the construction of strong smart grid can significantly improve the grid's ability to access, given and adjust clean energy, vigorously promote the development of clean energy.(1) smart grid, the application of advanced control technology and energy storage technology, perfect the grid-connected clean energy technology standards, improve the clean energy acceptance ability.Clean energy base, (2) the smart grid, rational planning of large-scale space truss structure and sending the power structure, application of uhv, flexible transmission technology, meet the requirements of the large-scale clean energy electricitytransmission.(3) the smart grid for large-scale intermittent clean energy to carry on the reasonable and economic operation, improve the operation performance of clean energy production.(4) intelligent with electric equipment, can achieve acceptance and coordinated cont rol of distributed energy, realize the friendly interaction with the user, the user to enjoy the advantages of new energy power.Energy conservation and emissions reductionStrong smart grid construction to promote energy conservation and emissions reduc tion,development of low carbon economy is of great significance: (1) to support large-scale clean energy unit net, accelerate the development of clean energy, promote our country the optimization of energy structure adjustment;(2) to guide users reasonable arrangement of electricity, reducing peak load, stable thermal power unit output, reduce power generation coal consumption;(3) promote ultra-high voltage, flexible transmission, promotion and application of advanced technology such as economic operation, reduce the transmission loss, improve power grid operation efficiency;(4) to realize the power grid to interact with users effectively, promote intelligent power technology, improve the efficiency of electricity;(5) to promote the electric car of large-scale application, promote the development of low-carbon economy, achieve emission reduction benefits.There are three milestones of the concept of smart grid development:The first is 2006, the United States "smart grid" put forward by the IBM solution.IBM smart grid is mainly to solve, improve reliability and safety of power grid from its release in China, the construction of the smart grid operations management innovation - the new train of thought on the development of China's power "the white paper can be seen that the scheme provides a larger framework, through to the electric power production, transmission, the optimization of all aspects of retail management, for the relevant enterprises to improve operation efficiency and reliability, reduce cost dep icts a blueprint.IBM is a marketing strategy.The second is the energy plan put forward by the Obama took office, in addition to the published plan, the United States will also focus on cost $120 billion a year circuit。

电气工程及其自动化专业_外文文献_英文文献_外文翻译_plc方面.

电气工程及其自动化专业_外文文献_英文文献_外文翻译_plc方面.

1、外文原文A: Fundamentals of Single-chip MicrocomputerTh e si ng le -c hi p m ic ro co mp ut er i s t he c ul mi na ti on of both t h e de ve lo pm en t of the dig it al com pu te r an d th e in te gr at ed c i rc ui t arg ua bl y t h e tow m os t s ig ni f ic an t i nv en ti on s o f t he 20th c e nt ur y [1].Th es e tow type s of arch it ec tu re are foun d in sin g le -ch i p m i cr oc om pu te r. Som e empl oy the spli t prog ra m/da ta me mo ry of the H a rv ar d ar ch it ect u re , sh ow n in Fig.3-5A -1, oth ers fo ll ow the p h il os op hy , wi del y ada pt ed for gen er al -p ur po se com pu te rs and m i cr op ro ce ss o r s, o f ma ki ng no log i ca l di st in ct ion be tw ee n p r og ra m and dat a me mo ry as in the Pr in ce to n arch ite c tu re , show n i n Fig.3-5A-2.In gen er al ter ms a sin gl e -chi p mic ro co mp ut er i sc h ar ac te ri zed b y t he i nc or po ra ti on of a ll t he un it s of a co mp uter i n to a sin gl e d ev i ce , as sho wn inFi g3-5A -3.Fig.3-5A-1 A Harvard typeFig.3-5A-2. A conventional Princeton computerFig3-5A-3. Principal features of a microcomputerRead only memory (ROM.R OM is usua ll y for the pe rm an ent,n o n-vo la ti le stor a ge of an app lic a ti on s pr og ra m .M an ym i cr oc om pu te rs and m are inte nd e d for high -v ol um e ap pl ic at ions a n d he nc e t h e eco n om ic al man uf act u re of th e de vic e s re qu ir es t h at t he cont en t s o f t he prog ra m me m or y be co mm it t ed perm a ne ntly d u ri ng the man ufa c tu re of ch ip s .Cl ea rl y, thi s im pl ie s a r i go ro us app ro ach to ROM cod e deve l op me nt sin ce cha ng es can not b e mad e afte r manu f a c tu re .Th is dev e lo pm en t proc ess may invo lv e e m ul at io n us in g aso ph is ti ca te d de ve lo pm en t sy ste m wit h a h a rd wa re emu la tio n cap ab il it y as w el l as the use o f po we rf ul s o ft wa re too ls.So me man uf act u re rs pro vi de add it io na l RO M opt i on s by i n cl ud in g in their ra n ge dev ic es wit h (or int en de d fo r use wit h u s er pro gr am ma ble me mo ry. Th e sim p le st of th es e is usu al ly d e vi ce whi ch can op er at e in a micro p ro ce ssor mod e by usi ng som e o f the inp ut /outp u t li ne s as an ad dr es s an d da ta b us fora c ce ss in g ex te rna l mem or y. Thi s t y pe of de vi ce can beh av ef u nc ti on al ly as th e sing le chip mi cr oc om pu te r from whi ch it is d e ri ve d al be it wit h re st ri ct ed I/O and a mod if ied ex te rn al c i rc ui t. The use of thes e d ev ic es is com mo n eve n in prod uc ti on c i rc ui ts wher e t he vo lu me does no tj us ti f y t h e d ev el o pm en t c osts o f c us to m o n -ch i p R OM [2];t he re c a n s ti ll bea s ignif i ca nt saving i n I /O and o th er c h ip s com pa re d to a conv en ti on al mi c ro pr oc es sor b a se d ci rc ui t. Mor e ex ac t re pl ace m en t fo r RO M dev i ce s ca n be o b ta in ed in th e fo rm of va ri an ts w it h 'p ig gy -b ack 'E P RO M(Er as ab le pro gr am ma bl e ROM s oc ke ts or dev ic e s with EPROM i n st ea d o f RO M 。

MarkTwain—MirrorofAmerica中英对照翻译

MarkTwain—MirrorofAmerica中英对照翻译

Mark Twain-the Mirror of AmericaMost Americans remember Mark Twain as the father of Huck Finn's idyllic cruise through eternal boyhood and Tom Sawyer's endless summer of freedom and adventure. In-deed, this nation's best-loved author was every bit as ad-venturous, patriotic, romantic, and humorous as anyone has ever imagined. I found another Twain as well – one who grew cynical, bitter, saddened by the profound personal tragedies life dealt him, a man who became obsessed with the frailties of the human race, who saw clearly ahead a black wall of night.在大多数美国人的心目中,马克?吐温是位伟大作家,他描写了哈克?费恩永恒的童年时代中充满诗情画意的旅程和汤姆?索亚在漫长的夏日里自由自在历险探奇的故事。

的确,这位美国最受人喜爱的作家的探索精神、爱国热情、浪漫气质及幽默笔调都达到了登峰造极的程度。

但我发现还有另一个不同的马克?吐温——一个由于深受人生悲剧的打击而变得愤世嫉俗、尖酸刻薄的马克?吐温,一个为人类品质上的弱点而忧心忡忡、明显地看到前途是一片黑暗的人。

Tramp printer, river pilot , Confederate guerrilla, prospector, starry-eyed optimist, acid-tongued cynic: The man who became Mark Twain was born Samuel Langhorne Clemens and he ranged across the nation for more than a third of his life, digesting the new American experience before sharing it with the world as writer and lecturer. He adopted his pen name from the cry heard in his steamboat days, signaling two fathoms (12 feet) of water -- a navigable depth. His popularity is attested by the fact that more than a score of his books remain in print, and translations are still read around the world.印刷工、领航员、邦联游击队员、淘金者、耽于幻想的乐天派、语言尖刻的讽刺家:马克?吐温原名塞缪尔?朗赫恩?克莱门斯,他一生之中有超过三分之一的时间浪迹美国各地,体验着美国的新生活,尔后便以作家和演说家的身分将他所感受到的这一切介绍给全世界。

电气工程及其自动化专业 外文文献 英文文献 外文翻译 plc方面

电气工程及其自动化专业 外文文献 英文文献 外文翻译 plc方面

1、外文原文(复印件)A: Fundamentals of Single-chip MicrocomputerTh e si ng le-ch i p mi cr oc om pu ter is t he c ul mi nat i on o f bo th t h e d ev el op me nt o f th e d ig it al com p ut er an d t he int e gr at ed ci rc ui ta r gu ab ly th e t ow m os t s i gn if ic ant i nv en ti on s o f t h e 20t h c en tu ry[1].Th es e to w typ e s of a rc hi te ctu r e ar e fo un d i n s in gl e-ch ip m i cr oc om pu te r. So m e em pl oy t he sp l it p ro gr am/d ata me mo ry o f th e H a rv ar d ar ch it ect u re, sh ow n i n -5A, ot he rs fo ll ow th e ph i lo so ph y, w i de ly a da pt ed fo r g en er al-p ur pos e c om pu te rs an d m i cr op ro ce ss or s, o f m a ki ng no lo gi c al di st in ct io n b e tw ee n p ro gr am a n d da t a m em ory a s i n th e Pr in cet o n ar ch it ec tu re,sh ow n in-5A.In g en er al te r ms a s in gl e-chi p m ic ro co mp ut er i sc h ar ac te ri zed b y the i nc or po ra tio n of al l t he uni t s o f a co mp ut er i n to a s in gl e dev i ce, as s ho wn in Fi g3-5A-3.-5A-1 A Harvard type-5A. A conventional Princeton computerFig3-5A-3. Principal features of a microcomputerRead only memory (ROM).R OM i s u su al ly f or th e p er ma ne nt, n o n-vo la ti le s tor a ge o f an a pp lic a ti on s pr og ra m .M an ym i cr oc om pu te rs an d mi cr oc on tr ol le r s a re in t en de d fo r h ig h-v ol ume a p pl ic at io ns a nd h en ce t he e co nom i ca l ma nu fa ct ure of t he d ev ic es r e qu ir es t ha t the co nt en ts o f the pr og ra m me mo ry b e co mm it te dp e rm an en tl y d ur in g th e m an uf ac tu re o f c hi ps . Cl ear l y, th is im pl ie sa ri g or ou s a pp roa c h t o R OM co de d e ve lo pm en t s in ce c ha ng es ca nn otb e m ad e af te r man u fa ct ur e .T hi s d e ve lo pm en t pr oce s s ma y in vo lv e e m ul at io n us in g a s op hi st ic at ed deve lo pm en t sy st em w i th a ha rd wa re e m ul at io n ca pa bil i ty a s we ll a s th e u se of po we rf ul so ft wa re t oo ls.So me m an uf act u re rs p ro vi de ad d it io na l RO M opt i on s byi n cl ud in g i n th ei r ra ng e de vi ce s wi th (or i nt en de d fo r us e wi th) u s er pr og ra mm ab le m em or y. Th e s im p le st of th es e i s us ua ll y d ev ice w h ic h ca n op er ate in a m ic ro pr oce s so r mo de b y usi n g so me o f th e i n pu t/ou tp ut li ne s as a n ad dr es s an d da ta b us f or acc e ss in g e xt er na l m e mo ry. T hi s t ype o f d ev ic e c an b e ha ve fu nc ti on al l y a s t he si ng le c h ip mi cr oc om pu te r fr om wh ic h i t i s de ri ve d a lb eit w it h r es tr ic ted I/O an d a mo di fie d e xt er na l ci rcu i t. T he u se o f t h es e RO Ml es sd e vi ce s is c om mo n e ve n in p ro du ct io n c ir cu it s wh er e t he v ol um e do es n o t ju st if y th e d e ve lo pm en t co sts of c us to m on-ch i p RO M[2];t he re c a n st il l b e a si g ni fi ca nt s a vi ng in I/O a nd ot he r c hi ps co mp ar ed t o a c on ve nt io nal mi cr op ro ce ss or b as ed c ir cu it. M o re e xa ctr e pl ac em en t fo r RO M d ev ic es c an b e o bt ai ne d in t he f o rm o f va ri an ts w i th 'pi gg y-ba ck'EP RO M(Er as ab le p ro gr am ma bl e ROM)s oc ke ts o rd e vi ce s w it h EP ROM i ns te ad o f R OM 。

工业机械手外文文献翻译、中英文翻译

工业机械手外文文献翻译、中英文翻译

第一章概述1. 1机械手的发展历史人类在改造自然的历史进程中,随着对材料、能源和信息这三者的认识和用,不断创造各种工具(机器),满足并推动生产力的发展。

工业社会向信息社会发展,生产的自动化,应变性要求越来越高,原有机器系统就显得庞杂而不灵活,这时人们就仿造自身的集体和功能,把控制机、动力机、传动机、工作机综合集中成一体,创造了“集成化”的机器系统——机器人。

从而引起了生产系统的巨大变革,成为“人——机器人——劳动对象”,或者“人——机器人——动力机——工作机——劳动对象”。

机器人技术从诞生到现在,虽然只有短短三十几年的历史,但是它却显示了旺盛的生命力。

近年来,世界上对于发展机器人的呼声更是有增无减,发达国家竞相争先,发展中国家急起直追。

许多先进技术国家已先后把发展机器人技术列入国家计划,进行大力研究。

我国的机器人学的研究也已经起步,并把“机器人开发研究”和柔性制造技术系统和设备开发研究等与机器人技术有关的研究课题列入国家“七五”、“八五”科技发展计划以及“八六三”高科技发展计划。

工业机械手是近代自动控制领域中出现的一项新技术,并已经成为现代机械制造生产系统中的一个重要组成部分。

这种新技术发展很快,逐渐形成一门新兴的学科——机械手工程。

1. 2机械手的发展意义机械手的迅速发展是由于它的积极作用正日益为人们所认识:其一、它能部分地代替人工操作;其二、它能按照生产工艺的要求,遵循一定的程序、时间和位置来完成工件的传送和装卸;其三、它能操作必要的机具进行焊接和装配。

从而大大地改善工人的劳动条件,显著地提高劳动生产率,加快实现工业生产机械化和自动化的步伐。

因而,受到各先进工业国家的重视,投入大量的人力物力加以研究和应用。

近年来随着工业自动化的发展机械手逐渐成为一门新兴的学科,并得到了较快的发展。

机械手广泛地应用于锻压、冲压、锻造、焊接、装配、机加、喷漆、热处理等各个行业。

特别是在笨重、高温、有毒、危险、放射性、多粉尘等恶劣的劳动环境中,机械手由于其显著的优点而受到特别重视。

机械手中英文对照外文翻译文献

机械手中英文对照外文翻译文献

机械手中英文对照外文翻译文献机械手机械手是近几十年发展起来的一种高科技自动化生产设备。

作为工业机器人的一个重要分支,机械手可通过编程来完成各种预期的作业任务,并兼有人和机器各自的优点,尤其体现了人的智能和适应性。

机械手作业的准确性和各种环境中完成作业的能力,在国民经济各领域有着广阔的发展前景。

随着工业自动化的发展,数控加工中心在减轻工人劳动强度的同时,提高了劳动生产率。

然而,数控加工中常见的上下料工序,通常仍采用人工操作或传统继电器控制的半自动化装置。

前者费时费工、效率低,后者则存在可靠性差、故障多、维修困难等问题。

因此,可编程序控制器PLC控制的上下料机械手控制系统成为了一种更为优越的选择,它具有动作简便、线路设计合理、抗干扰能力强和可靠性高等优点,可以保证系统运行的稳定性,降低维修率,提高工作效率。

机械手技术涉及到力学、机械学、电气液压技术、自动控制技术、传感器技术和计算机技术等科学领域,是一门跨学科综合技术。

一、工业机械手的概述机械手是一种能自动化定位控制并可重新编程序以变动的多功能机器,它有多个自由度,可用来搬运物体以完成在各个不同环境中工作。

在中国,尽管塑料制品行业仍属于劳动力密集型,但机械手的使用已经越来越普及。

那些设在中国的欧美跨国公司很早就在工厂中引进了自动化生产。

但现在的变化是分布在工业密集的华南、华东沿海地区的中国本土塑料加工厂也开始对机械手表现出越来越浓厚的兴趣,因为他们要面对工人流失率高,以及为工人交工伤费带来的挑战。

随着我国工业生产的飞跃发展,特别是改革开发以后,自动化程度的迅速提高,实现工件的装卸、转向、输送或操作钎焊、喷枪、扳手等工具进行加工、装配等作业自化,已愈来愈引起我们重视。

机械手是模仿着人手的部分动作,按给定的程序、轨迹和要求实现自动抓取、搬运或操作的自动机械装置。

在现实生活中,加工零件装料的过程繁琐,劳动生产率不高,生产成本大,有时还会发生人为事故,导致加工者受伤。

外文文献翻译-国际商务谈判

外文文献翻译-国际商务谈判

外文文献翻译-国际商务谈判外文文献翻译International Business NegotiationsPervez Ghauri & Jean-Claude UsunierWhen two people communicate, they rarely talk about precisely the same subject, for effective meaning is flavored by each person’s own cognitive world and culturalconditioning. Negotiation is the process by which at least twoparties try to reach an agreement on matters of mutual interest. The negotiation process proceeds as an interplay of perception, information processing, and reaction, all of which turn on images of reality (accurate or not), on implicit assumptions regarding the issue being negotiated, and on an underlying matrix of conventional wisdom, beliefs, and social expectations. Negotiations involve two dimensions: a matter of substance and the process. The latter is rarely a matter of relevance when negotiations are conducted within the same cultural setting. Only when dealing with someone from another country with a different cultural background does process usually become a critical barrier to substance; in such settings process first needs to be established before substantive negotiations can commence. This becomes more apparent when the negotiation process is international, when cultural differences must be bridged.When negotiating internationally, this translates into anticipating culturally related ideas that are most likely to be understood by a person of a given culture. Discussions are frequently impeded because the two sides seem to be pursuing different paths of logic; in any cross cultural context, the potential for misunderstanding and talking past each other is great. Negotiating internationally almost certainly means having to cope with new and inconsistent information, usually accompanied by new behavior, social environments, and even sights and smells. The greater the cultural differences, the more likely barriers to communication and misunderstandings become. When one takes the seemingly simple process of negotiations into a cross-cultural context, it becomes even more complex and complications tend to grow exponentially. It is naive indeed to venture into international negotiation with the belief that “after all, people are pretty much alikeeverywhere and behave much as we do.” Even if they wear the same clothes you do,speak English as well as (or even better than) you, and prefer many of the comforts and attributes of American life (food, hotels, sports), it would be foolish to view a1member of another culture as a brother in spirit. That negotiation style you use so effectively at home can be ineffective and inappropriate when dealing with people from another cultural background;in fact its use can often result in more harm than gain. Heightened sensitivity, more attention to detail, and perhaps even changes in basic behavioral patterns are required when working in another culture.Members of one culture may focus on different aspects of an agreement (e.g., legal, financial) than may members of another culture (personal, relationships). The implementation of a business agreement may be stressed in one culture, while the range and prevention of practical problems may be emphasized in another culture. In some cultures, the attention of people is directed more toward the specific details of the agreement (documenting the agreement), while other cultures may focus on how the promises can be kept (process and implementation). Americans negotiate a contract; the Japanese negotiate a personal relationship. Culture forces people to view and value differently the many social interactions inherent in fashioning any agreement. Negotiations can easily break down because of a lack of understanding of the cultural component of the negotiation process. Negotiators who take the time to understand the approach that the other parties are likely to use and to adapt their own styles to that one are likely to be more effective negotiators.American and Russian people are not similar; their ethical attitudes do not coincide: they evaluate behavior differently. What an American may consider normative, positive behavior (negotiating and reaching a compromise with an enemy), a Russian perceives as showing cowardice, weakness, and unworthiness; the word “deal” has a strong negativeconnotation, even today in contemporary Russia. Similarly, for Russians, compromise has negative connotation; principles are supposed to be inviolable and compromise is a matter of integrity (The Russians are not alone here: a Mexican will not compromise as a matter of honor, dignity, and integrity; likewise, an Arab fears loss of manliness if he compromises.) A negotiation is treated as a whole without concessions. At the Strategic Arms Limitation Talks (SALT) talks, the Americans thought they had an agreement (meaning conclusive commitment), while the Russians said it was an understanding (meaning an expression of mutual viewpoint or attitude). When the Americans thought they had an understanding, the Russians said it was a procedural matter, meaning they had agreed to a process for conducting the negotiation. Different cultural systems can produce divergent negotiating styles--styles shaped by each nation’s culture, geography,history, and political system. Unless you see the world through the other’s eyes (no2matter how similar they appear to you), you may not be seeing or hearing the same. No one can usually avoid bringing along his or her own cultural assumptions, images, and prejudices or other attitudinal baggage into any negotiating situation. The way one succeeds in cross cultural negotiations is by fully understanding others, using that understanding to one’s own advantage to realize what each party wants from thenegotiations, and to turn the negotiations into a win-win situationfor both sides. A few potential problems often encountered during across-cultural negotiation include ( Frank, 1992):Insufficient understanding of different ways of thinking.Insufficient attention to the necessity to save face.Insufficient knowledge of the host country--including history, culture,government, status of business, image of foreigners.Insufficient recognition of political or other criteria.Insufficient recognition of the decision-making process.Insufficient understanding of the role of personal relations and personalities.Insufficient allocation of time for negotiations.Over two-thirds of U.S.-Japanese negotiation efforts fail eventhough both sides want to reach a successful business agreement (The U.S. Department of Commerce is even more pessimistic; it estimates that for every successful American negotiation with the Japanese, there aretwenty-five failures.) In fact, these numbers hold true for most cross-cultural meetings. Often barriers to a successful agreement are of a cultural nature rather than of an economical or legal nature. Since each side perceives the other from its own ethnocentric background and experience, often neither side fully comprehends why the negotiations failed. It is precisely this lack of knowledge concerning the cultureand the “alien” and “unnatural” expectations of the other sidethat hinders effective negotiation with those from another culture.In cross-cultural negotiations, many of the rules taught and used domestically may not apply--especially when they may not be culturally acceptable to the other party. For most Western negotiators this includes the concepts of give and take, of bargaining, and even of compromise. The stereotypical, common Western ideal of a persuasive communicator--highly skilled in debate, able to overcome objections with verbal flair, an energetic extrovert--may be regarded by members of other cultures as unnecessarily aggressive, superficial, insincere, even vulgar and repressive. To other Americans, the valued American traits of directness and frankness show evidence of good intentions and personal convictions. To an American it is complimentary to be3called straightforward and aggressive. This is not necessarily so, however, for members of other cultures. To describe a person as “aggressive” is a derogatorycharacterization to a British citizen. To the Japanese, those very same traits indicate lack of confidence in one’s convictions and insincerity. Instead, terms such asthoughtful, cooperative, considerate, and respectful instillpositives in the Japanese and many Asian cultures.Domestically, the study of negotiation tends to encompass business relationships between parties, tactics, bargaining strategies, contingency positions, and so on. However, in a cross-cultural context,besides the usual rules of negotiation, one has to be wary of fine nuances in relationships and practices and how they are perceived and executed by members of the other culture. The two business negotiators are separated from each other not only by physical features, a totally different language, and business etiquette, but also by a different way to perceive the world, to define business goals, to express thinking and feeling, to show or hide motivation and interests. From the other party’s perspective, for example, to some cultures Americans may appear aggressive and rude, while to others, those very same Americans appear calm and uninterested.1 The Art of NegotiationsThe word “negotiations” stems from the Roman word negotiari meaning “to(not) and otium (ease carry on business” and is derived from the Latin root words negor leisure). Obviously it was as true for the ancient Romans as itis for most businesspersons of today that negotiations and business involves hard work. A modern definition of negotiation is two or more parties with common (and conflicting) interests who enter into a process of interaction with the goal of reaching an agreement (preferably of mutual benefit). John Kenneth Galbraith said “Sex apart, negotiation is the most common and problematic involvement of one person with another, and the two activities are not unrelated.” Negotiations are a decision-makingprocess that provides opportunities for the parties to exchange commitments or promises through which they will resolve their disagreements and reach a settlement. A negotiation is two or more parties striving to agree when their objectives do not coincide.Negotiation consists of two distinct processes: creating value and claiming value. Creating value is a cooperative process whereby the parties in the negotiation seek to realize the full potential benefit of the relationship. Claiming value is essentially a competitive process. The key to creating value is finding interests that the parties have4in common or that complement each other, then reconciling and expanding upon these interests to create a win-win situation. Parties at the negotiating table are interdependent. Their goals are locked together. A seller cannot exist without a buyer. The purpose of a negotiation is a joint decision-making process through which the parties create a mutually acceptable settlement. The objective is to pursue a win-win situation for both parties.Negotiations take place within the context of the four Cs: common interest, conflicting interests, compromise, and criteria (Moran and Stripp, 1991). Common interest considers the fact that each party in the negotiation shares, has, or wants something that the other party has or does. Without a common goal, there would be no need for negotiation. Conflict occurs when people have separate but conflicting interests. Areas of conflicting interests could include payment, distribution,profits, contractual responsibilities, and quality. Compromise involves resolving areas of disagreement. Although a win-win negotiated settlement would be best for both parties, the compromises that are negotiated may not produce the result. The criteria include the conditions under which the negotiations take place. The negotiation process has few rules of procedure. Rules of procedure are as much a product of negotiation as the issues. Over time, the four Cs change and the information, know-how, and alternatives available to the negotiating international company and the host country also change, resulting in a fresh interpretation of the four Cs, the environment, and the perspective. In essence, negotiation takes place within the context of the political, economic, social, and cultural systems of a country. The theory of the negotiation process includes the following dimensions: (1) bargainer characteristics, (2) situational constraints, (3) the process of bargaining, and (4) negotiation outcomes. This theory is based on actors who share certain values and beliefs based on their culture. These actors function in business and economic situations that also have cultural influences, and they act in certain culturally inscribed ways. We bargain when:1. A conflict of interest exists between two or more parties; that is, what is, whatone wants is not necessarily what the other one wants.2. A fixed or set of rules or procedures for resolving the conflict does not exist,or the parties prefer to work outside of a set of rules to inventtheir ownsolution to the conflict.53. The parties, at least for the moment, prefer to search for agreement rather thanto fight openly, to have one side capitulate, to permanently breakoff contact,or to take their dispute to a higher authority to resolve it.In summary, negotiations primarily consists of five aspects: (1) goals: motivating the parties to enter; (2) the process of negotiatingthat involves communications and actions; (3) outcomes; (4) preexisting background factors of cultural traditions and relations; and (5)specific situational conditions under which the negotiation is conducted.2 VerbalLanguage is highly important. When people from different cultures communicate, culture-specific factors affect how they encode and decode their messages. Negotiators should check understanding periodically,move slowly, use questions liberally, and avoid slang and idioms. Eventhe discussion of negotiation, compromise, and agreement has different meanings to different cultures. Both the American and Korean meaningsfor the word “corruption” are negative; however in the United States, the word connotes being morally wrong while for the Koreansit implies being socially unfortunate. The Mexican will not compromiseas a matter of honor, dignity, and integrity. The Arab fears loss of manliness if he compromises. In Russia, compromise has a negative connotation; principles are supposed to be inviolable and compromise is a matter of integrity. For Russians, a negotiation is treated as a whole without concessions.In the American culture, those who refuse to bargain are viewed as cold, secretive, and not really serious about conducting business. The Dutch are not hagglers; you should make your offer fairly close to your true asking price; if you start making large concessions you will lose their confidence. The Swedes are methodical, detailed individuals who are slow to change positions. Bargaining is not highly valued in Swedish culture; those who bargain, who attempt to negotiate by offering a higher price in order to concede to a lower price, can be viewed as untrustworthy, inefficient, or perhaps out for personal gain at the expense of others.3 Nonverbal Communications in Cross-Cultural NegotiationsNonverbal behavior may be defined as any behavior, intentional or unintentional, beyond the words themselves that can be interpreted by a receiver as having meaning. Nonverbal behaviors could include facial expressions, eye contact, gestures, body movements, posture, physical appearance, space, touch, and time usage. They are all different from culture to culture. Nonverbal behaviors either accompany verbal6messages or are used independently of verbal messages. They mayaffirm and emphasize or negate and even contradict spoken messages. Nonverbal behaviors are more likely to be used unconsciously and spontaneously because they are habitual and routine behaviors.The wide range of behaviors called nonverbal behavior can be divided into seven categories. Gestures, body movement, facial movement, and eye contact are combined in the kinesic code commonly called body language. Vocalics refers to call vocal activity other than the verbal context itself. Also called paralanguage, vocalics includes tone, volume, and sounds that are not words. Behaviors that involve touching are placed in the haptics code. The use of space is called proxemics, and the use of time is chronemics. Physical appearance includes body shape and size, as well as clothing and jewelry. Finally, artifacts refer to objects that are associated with a person, such as one’s desk, car, or books. It should be emphasized that these codes do not usually function independently or sequentially; rather, they work simultaneously. In addition, nonverbal behavior is always sending messages; we can not communicate without using them, although, at times, the messages may be ambiguous. This wide range of nonverbal behaviors serves various functions in all face-to-face encounters. Most important, emotional messages at the negotiating table are expressed nonverbally by gestures, tone of voice, or facial expressions. The other side’sinterpretation of your statement depends on the nonverbal more than what was actually said. Nonverbal communications is significant.From: International Business Negotiations, 20017国际商务谈判伯维茨.高利, 简.科劳德.阿斯尼尔当两个人交流时,他们很少精确地谈论相同的问题,因为实际的意思会受到每个人认知的世界和文化熏陶的影响。

机械手臂外文文献翻译、中英文翻译、外文翻译

机械手臂外文文献翻译、中英文翻译、外文翻译

机械手臂外文文献翻译、中英文翻译、外文翻译外文出处:《Manufacturing Engineering and Technology—Machining》附件1:外文原文XXXRobot XXX decades as high-XXX branch of industrial robots. It features can be programmed to perform tasks in a variety of expectations, in both structure and performance advantages of their own people and machines, in particular, XXX the work in the field of national economy and there are broad prospects for development. With the development of industrial automation, there has been CNC machining center, it is in reducing labor intensity, XXX, the upper and lower common in CNC machining processesmaterial, usually still use XXX relay-controlled semi-automatic device. The former time-consuming and labor intensive, inefficient; XXX, require more relays, XXX, XXX interference, XXX, XXX Programmable Logic Controller PLC-controlled robot control system formaterials up and down movement is simple, circuit design is reasonable, with a strong anti-jamming capability, ensuring the system'XXX, reduced maintenance rate,and XXXmechanics, mechanics, XXX, XXX, XXX and other fields of science, is a cross-disciplinary XXX.First, an overview of industrial manipulatorRobot is a kind of positioning control can be automated and can be re-programmedto change in multi-functional machine, which has multiple degrees of freedom can beused to carry an object in order to XXX China, plastic products industry, although still a labor-intensive, XXX1Europe and the United XXX, XXX-intensive South China, East China's coastal areas, XXX, because they have to face a high turnover rate of workers, as well as for theworkers to pay work-related injuries XXX.With the rapid development of China's industrial production, especially the reformand XXX workpiece handling, steering, XXX brazing, spray gun, wrenches and other tools for processing and assembly operations since, which has more and more attracted our attention. Robot is to imitate the manual part of the action,according toa given program, track and requirements for automatic capture, XXX.In real life, you will find this a problem. In the machine shop, the processing of parts loading time is not annoying, and labor productivity is not high, the cost of production major, and sometimes man-made incidents will occur, resulting in processing wereinjured. Think about what could replace it with the processing time of a tour as long as there are a few people, and can operate 24 hours saturated human right? The answeris yes, but the robot can come to replace it.XXX can increase XXX; XXX, ensuring product quality, to achieve safe production; particularly in the high-temperature, high pressure, low temperature, low pressure, dust, explosive, XXX the normal working people. Here I would like to think of designing a robot tobe used in actual production.XXX power: pneumatic robot refersto the compressed air as power source-driven robot. With pressure-driven and other energy-driven comparison have the following advantages: 1. Air inexhaustible, used XXX, does not require recycling and disposal,do not pollute the XXX. (Concept of environmental protection) 2. Air stick is small, the pi2peline pressure loss is small (typically less than asphalt gas path pressure drop of one-thousandth), to facilitate long-distance transport. 3. Compressed air of the working pressure is low (usually 4 to 8 kg / per square centimeter), and therefore moving the material components and XXX. With the hydraulic transmission, compared to its faster action and reaction, which is one of the advantages pneumatic outstanding. 5. The air cleaner media, it will not degenerate, not easy to plug the pipeline. But there are also places where it fly in the ointment: 1. As the compressibility of air, XXX the work, XXX as the precision of the velocity and not easily controlled. 2. As the use of low atmospheric pressure, the output power can not be too large; in order to increase the output power is bound to the structure of the entire pneumatic system size increased.With pneumatic drive and compare with other energy sources drive has the following advantages:Air inexhaustible, used XXX, without recycling anddisposal, do not pollute the XXX or a small amount of leakage would not be a XXX of air is small, the pipeline pressure loss also is very small, easy long-distance transport.The lower working pressure of compressed air, XXX general, reciprocating thrust in 1 to 2 tons XXX.Compared with the hydraulic transmission, and its faster action and reaction, XXX.Clean air medium, it will not degenerate, not easy to plug the pipeline. It can be safely used in flammable, XXX.Second, XXX, mechanical handRobot in the form of a variety of forms, some relatively simple, some more complicated, but the basic form is the same as the composition of the , Usually by the implementing agencies, transmission systems, control systems and auxiliary devices compose3d.1.Implementing agenciesXXX hands, wrists, arms, pillars. Hands are crawling institutions, is used to clamp and release the workpiece, and similar to human fingers, XXXXXX used to support the arm can also be made mobile as needed.2. TransmissionXXX, hydraulic transmission, XXX.3. Control SystemManipulator control system's main role is to control the robot according to certain procedures, direction, position, speed of action, a simple mechanical hand is generallynot set up a dedicated control system, using only trip switches, relays, control valves and circuits can be achieved dynamic drive system control, so that XXX of action. Action will have to use complex programmable robot controller, the micro-computer control.Three, XXX characteristicsXXX: the first is the general machinerydoes not require manual hand. It is an independent not affiliated with a particular hostdevice. It can be programmed according to the needs of thetask to complete the operation of the provisions. It is XXX, alsohas general machinery, memory, XXX second categoryis the need to manually do it, called the operation of aircraft. It originated in the atom,military industry, first through the operation of machines to complete a particular job,XXX such as the Moon. Used in industrial manipulator also fall into this category. The third category is dedicated manipulator, the XXX auto4matic lines, to solve the machine up and down the XXX known as the "Mechanical Hand", which is the host of services, from the host-driven; exception of a few outside the XXX, XXX.Main features:First, mechanical hand (the upper and lower material robot, assembly robot, handling robot, stacking robot, help robot, vacuum handling machines, vacuum suction crane,labor-saving spreader, pneumatic balancer, etc.).Second, cantilever cranes (cantilever crane, electric chain hoist crane, air balance the hanging, etc.)Third, rail-type transport system (hanging rail, light rail, single girder cranes, double-beam crane)Four, industrial machinery, application of handXXX of the production process developed a new type of device. In recent years, as electronic technology, especially computer extensive use of robot development and production of high-tech fields has XXX, XXX, XXX.Although the robot is not as flexible as staff, but it has to the continuous duplicationof work and labor, I do not know fatigue, not afraid of danger, XXX characteristics when compared with manual large, therefore, mechanical hand has been of great importance to many sectors, and increasingly has been applied widely, forexample:(1) Machining the workpiece loading and unloading, especially in the automatic lathe, combination machine tool use is more common.(2) XXX industry, it can beused to assemble printed circuit boards, XXX industry It can be used to assemble parts and components.(3) The working conditions may be poor, monotonous, repetitive easy to sub-fatigu5XXX.(4) XXX, XXX, XXX..(5) XXX.(6), XXX and testing.Help mechanical hands: also known as the balancer, balance suspended, labor-savingspreader, manual Transfer machine is a kind of weightlessness of manual load system,a novel, time-XXX,belonging to kinds of non-standard design of series products. Customer application needs, XXX of the automatic machinery, it can be a fixed program draws﹑XXX. Application of robot can replace the peopleengaged in monotonous﹑XXX, XXX of production, instead of people in hazardous XXX, XXX personal safety. The late 20th century, 40, the United XXX experiments, the first use of radioactive material handling robot, human robot in a safe room to XXX 50 years later, XXX, for the temperatures, polluted areas, and loading and unloading to take place the work piece material, but also as an auxiliary device in automaticmachine tools, machine tools, automatic production lines and processing center applications, the completion of the upper and lower material, or From the library take place XXX operation. Robot body mainly by the hand and sports XXX with the use of hands and operation of objects of different occasions, often there are clamping﹑XXX﹑﹑XXX﹑XXX, generally 2 to 3 degrees of XXX industry, machinery manufacture, XXX some of the staff and arm motor function, a fixd procedure for the captu6re, handling objects or operating tools, automatic operation device. It can replace human labor in order to achieve the production of heavy XXX the personal safety, which is XXX, metallurgy, electronics, light industry and nuclear power sectors. Mechanical hand tools or other XXX used for additional devices, such as the automatic machines or automatic production line handling and transmission of the workpiece, XXX centers, etc. generally do not have a separate control device. Some operating devices XXX.XXX and sports XXX. Task of hand is holding the workpiece (or tool) components, according to grasping objects by shape, size,weight, material and XXX structural forms, such as clamp type,type and adsorption-based care such as holding. Sports organizations, XXX (swing), XXX the required action, to change the location of objects by grasping and posture.Robot is the automated production of a kind used in the process of crawling and moving piece features automatic device, which is XXX a new type of device. In recent years, as electronic technology, especially computer extensive use of robot development and production of high-tech fields has XXX, XXX, XXX. Robot can replace humans completed the risk of duplication ofboring work, to reduce human XXX widely, in the machinery industry, it can be used for parts assembly, work piece handling, loading and unloadingXXX component of the FMC. The machine tool equip7XXX a flexible manufacturing cell, it was adapted to small and medium volume production, you can save a huge amount of the work piece conveyor device, compact, and adaptable. When the work piece changes, flexible production system is very easy to change will help XXX, improve product quality, and better adapt to market XXX, China'XXX isa certain distance, application andindustrialization of the size of the low level of robot research and development of a direct impact on raising the level of automation in China, from the economy, XXX, the study of mechanical hand design is very meaningful.8附件1:外文资料翻译译文呆板手机械手是近几十年发展起来的一种高科技自动化生产设备。

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AD8302说明书1、特点:措施的收益/损失和相位高达GHz 的双解调对数放大器和鉴相器在50系统精确的增益测量标度(30毫伏/分贝内输入范围-60 dBm 至0 dBm 典型的非线性< dB精确的相位测量调节(10 毫伏/度)典型非线性度<1 度测量/控制器/水平比较模式从V - V 电源电压工作稳定的V 参考电压输出从DC 至30 MHzf 的小信号包络带宽2、应用线性化的RF / IF 功率放大器精确的RF 功率控制远程系统监控和诊断回波损耗/ VSWR 测量对于交流信号的数比例功能3、产品说明该AD8302 是一种用于测量增益/ 损耗和在庞大的接收,传输和仪表应用程序的相位的完全集成的系统。

它需要很少的外部元件和一个V 的电源供应。

在50 Q 系统中,交流耦合输入信号范围可从-60 dBm至0 dBm,从低频率可高达GHz 。

该输出提供了精确的测量,收益或亏损超过± 30 dB 范围扩展到30 毫伏/分贝,或相位在0°-180°范围扩展到10毫伏/度。

两个子系统具有30 MHz 的输出带宽,这可任意地减小通过添加外部滤波器的电容。

AD8302 可用于在控制器模式来迫使增益和相位趋近于预定的信号链的设定点。

AD8302 包含一个与解调对数放大器紧密匹配的放大器,每一个都具有60 dB 的测量范围。

通过取它们的输出之差,来测量两个输入信号之间的幅度比或增益是可能的。

这些信号甚至可以是在不同的频率,允许转换增益或损耗的测量。

AD8302 可被用来确定绝对信号电平,通过施加未知的信号到一个输入信号和一个校准的交流基准信号到另一个信号。

随着输出级反馈连接被禁用,一个比较器可以实现,通过设定值标签MSET 和PSET 来编程阈值。

信号输入是单端的,允许它们被匹配和直接连接到定向耦合器。

在低频率时他们的投入阻抗名义上是3k QoAD8302 包括乘法器型的相位检测器,但伴随着精确的相位平衡,由出现在两个对数放大器的输出端的完全限定的信号驱动。

因此,相位测量精度是在很宽的范围内独立的信号的水平。

相位和增益输出的电压是同时可用的,在可装载接地参考输出超过标准输出0 V至V的范围内。

输出驱动器可源或汇到8毫安。

一个可装载、稳定的V 参考电压是可用的,对于通过用户对输出范围的精确定位。

在控制器的应用中,在增益输出引脚VMAG 和设定点控制引脚MSET 之间的连接是不可用的。

所希望的设定值被呈现给MSET和VMAG来控制信号驱动一个适当的外部可变增益装置。

同样,相位输出引脚VPHS和它的设定值控制引脚PSET之间的反馈路径可能被打破,来作为相位控制器一样操作。

AD8302是采用ADI公司专有的高性能25 GHz的SOI互补双极集成电路工艺。

这是在一个14引脚TSSOP封装,工作在-40° C至+85 ° C温度范围可用的。

评估板可用。

4、AD8302-规格(TA=25 ° C,VS=5 V,VMAG 对于MSET 短路,VPHS 对于PSET 短路,的分流电阻连接到INPA和INPB,用于相位测量时PINP A= PINPB,除非另有说明。

)参数条件最小典型最大单位整体功能输入频率范围>0 2700 MHz增益测量范围PIN-INPA,PIN-INPB=-30 dBm 30 dB相位测量范围0 IN 在INPA> 0 IN 在INPB 90 Degree 参考电压输出引脚VREF,-40C < TA< +85C V输入接口引脚INPA和INPB输入的简化等AC 地面,F w 500 MHz 的 3 II2 Kp效电路交流耦合(0伏分贝=1 V RMS )-73 -3 dBV 回复:50 Q £00 dBm输入动态范围■43dBV中心-0 dBm震级输出弓1脚VMAG输出最小电压20 XLog(V INP A/V INPB) = -30 dB 30 mV输出最大电压20XLog(V INP A/V INPB) =+30 dB V输出的中心点V iNPA = V INPB 900 mV (MCP )输出电流源/汇8 mA 小信号包络针MFLT开放30 MHz 带宽压摆率40dB 变化,负载20pF II 10k Q 25 V/卩响应时间上升时间任何20 dB的变化,10 % -90 % 50 ns 下降时间任何20 dB的变化,90 % -10 % 60 ns 建立时间满量程60dB变化,以1 %的建立300 ns5、绝对最大额定值电源电压VSPSET , MSET 电压INPA, INPB最大输入等效电源回复.50 QV VS +43 dBV10 dBm0 JA2最大结温工作温度范围存储温度范围铅温度范围(焊接60秒)6、引脚配置150 C/W125 C-40 C 到+85 C-65 C 到+150 C300 CCOUHI 一丄篇1■NPAtfPOS7、引脚功能说明引脚号助记符AD栩02NSETVREFVPMS功能电路当量1, 7238 9 1011121314 COMMINPAOFSAVPOSOFSBINPBP FLTVPHSP SETVREFMSETVMAGMFLT一般设备。

连接到低阻抗的地。

高输入阻抗为通道A必须是交流耦合。

一个电容连接到地在该引脚设置偏移补偿滤波器的转角并提供输入解耦。

电源电压(VS),V至V一个对地电容在这个引脚设置偏移补偿滤波器的角落提供输入解耦。

输入通道B的结构与INPA相同低通滤波器终端的输出相单端输出正比于INPA和INPB之间的相位差在测量模式下VPHS输出电压的缩放的反馈引脚。

提供设定电压控制器模式。

内部产生的参考电压(V标称)在测量模式下VMAG输出电压缩放的反馈引脚。

接受在控制器模式下的设定点电压。

单端输出。

输出电压与应用于INPA和INPB的分贝比信号成正比。

低通滤波器端子的输出幅度电路电路电路电路电路电路电路电路电路电路电路电路AVPOSCOMM厂 3^^丄I--- "W ----fzKil CLASS“ CONTROL电路BVMAG(VPHS)COMM电路C8、基本连接测量模式AD8302的基本功能是直接测量增益和相位。

当输出引脚,VMAG 和VPHS , 直接连接反馈给定输入引脚,MSET 和PSET ,默认的斜坡和中心点被调用。

在 图1中所示中的基本连接被称作测量模式。

当前从设定点接口的信号强制由积分 器转化为等于从对数放大器和相位检测器来的信号电流。

因此,闭环传递函数为:V OUT = (I IN R F +V CP ) / (1+ sT)MWET(PSET)VPOSJ-5 lOMlACTIVE LOADS电路D电路E图1在30毫伏/ dB 和10毫伏/度的测量模式下缩放的基本连接 比较器和控制器模式AD8302也可以在比较器模式下操作,如果用在图2所示的布置,其中DUT 是进行评估的元素。

VMAG 和VPHS 引脚将不再连接到MSET 和PSET 。

对于 增益和相位差的比较的跳变点阈值是确定的,通过电压适用于引脚 MSET 和 PSET 根据:V MSET (V)=30mV/dB XGain sp(dB)+900 mV °|Phase sp( ° -90°) + 900mV9、应用测量放大器增益和压缩AD8302的最根本的应用是像放大器或混频器一样监控增益和相位响应的 功能电路块。

如图3所示,定向耦合器,DCB 和DCA ,对“黑盒子” DUT 的输 入和输出信号的采样。

衰减器确保呈现给 AD8302信号的水平在其动态范围内 下降。

从动态范围部分讨论,最优的选择放置两个通道在 POPT =-30 dBm 的参Cl • h£ Il4 ll C4rr1—T C5AD 3302COMMHFLT IN PAVMAnOFSAHS-ETVPOS VHEF OFSBPSETIMPSVPHSCOMMPFLTVpHSV P SET (V)=?10 mV/ CTd=V INA ®—氏JV|NB'号 C4I-^IIHC5—41—41 —EAD8302COMMMFLTINPA VMAGOFSAMSETVPOSVREFOFSB PSETINPBVPHSCOMMPFLTVPR2V|MB @ ------£ £73 -------------- 1“主C2回 VuAC V卫I — Vuser 卫]—VpsET 两——甘C8VH II «Hl> ATTENAVP o ^C7R4Cl**BLACKB0rC2I HI RS 呂 HIATTtHg考50Q,这对应于-43伏分贝。

为了实现这一目标,该组合的耦合系数和衰减由 下式给出:C B + L B = P IN ? F O PTC A + L A = P IN + GAIN NOM ? P O PT其中C B 和C A 是耦合系数,L B 和L A 是衰减因子,GAIN NOM 是标称DUT 的 增益。

如果相同的联接器用于两个端口,那么两个衰减补偿的差值就是正常 DUT 的增益。

当实际增益是正常的, VMAG 输出为900 mV ,相应的为0 dB 。

标称 增益的变化表现为一个偏差从 900 mV 或0分贝带有30毫伏/ dB 的缩放。

取决 于标称与DUT 相关的插入相位,相位测量可能需要一个固定相移与通道中的一 个串联,使标称相位差接近于 AD8302的最佳90。

的点。

当插入阶段是正常的,VPHS 输出为900毫伏。

正常的偏差都已报告伴随 着10毫伏/度度的缩放。

表I 给出了测量所建议的元件值,10dB 的标称增益和 -10 dBm 的输入功率的放大器。

表-HI —:HH-旨iC5AD&3O2增益测量应用还可以监视增益和相位失真在AM-AM (增益压缩)和AM-PM 转换的形式下。

在这种情况下,标称增益和相位对应于那些在低输入信号的电平。

当输入电平增加时,输出压缩和过量的相移将会被测量作为从低电平的情况下的偏差。

注意,这个信号水平超过被扫过的输入必须保持在动态范围内,在AD8302 正确操作的情况下。

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