AW-1-Introduction

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WAT-IntroductionPPT课件

WAT-IntroductionPPT课件

1 fA /V 1 0 fA /V 1 fA /V 1 fA /V SU N Blade 100 KTE
A gilent 4072
S630 Advantage
X
Lower COO
50fA (Std Port)
500 X better than 4072
10fA (AD C )
Full low current port, N o port
WAT Introduction
PIE-B3-WAT Xinguang_Sun
2007-03-31
Outline
• Why WAT? • Hardware & Software System
– Tester/Probe/Probe Card
• Test Pattern and Measurement • WAT WATCH system • WAT Test Items
very slow
0.04% reading + 5X better than 4072
800uV
0.01% reading + 2X better than 4072
300uV (use 3458A)
100m A @ 20V (2W ) 10X better than 4072
1A @ 14V (14W ) All SM U s can output 1A
S630 1.3X 0.1fA
M in. I M easure (accuracy) B est V M easure (resolution)
(re s o lu tio n ) (re s o lu tio n )
1.2% + 100fA 100nV

2014版泰克信号完整性基础-入门手册

2014版泰克信号完整性基础-入门手册

建立/保持时间违规-越来越快的数字系统会使得建 立/保持时间违规的问题越来越明显。一个时钟锁存
的错误或者毛刺,尽管它们含有不正确的数据,但都有 可能被看作有效的逻辑电平。可以使用数据列表显示来 的器件,如一个D触发器,要求数据在时钟边沿到来 发现异常的数据。例如用十六进制数表示所采集信号的 前保持稳定电平。这就是所谓的“建立”时间。同样,内容,但数据列表显示也不能解释错误的根本原因。如 输入数据必须在时钟边沿到来后继续有效。这就是 果没有进一步的手段探测到的信号的行为,单纯靠逻辑 所谓的“保持”时间。违反建立或保持时间的要求, 分析仪是很难找到的逻辑错误的原因的。 可能会导致不可预测故障的输出,或可能会导致输 出数据根本没有翻转。建立和保持时间的要求会随 着器件速度增加而减少,使时序关系更加难以处理。
2
/signal_integrity
信号完整性基础
信号完整性描述
高速的数据传输技术支持更为强大的计算机应用,如 根据定义, “完整性”是指“完整和无损害的”。同样,3D 游戏和电脑辅助设计程序。先进的三维图像需要大 量的数据在CPU、内存、显卡中进行传输。 一个具有良好的完整性的数字信号有干净、快速的上 升沿;稳定和有效的逻辑电平;准确的时间位置和没有 计算机技术只是带宽信息时代的一个方面的。数字通信 任何的瞬态跳变。 设备设计工程师(尤其是那些大力发展固网和移动网的基
对于系统开发者而言,不断发展的技术,使得系统 础设施)正逐步采用40 G的光、电数据传输技术。与此 开发、生产和维护完整、无损害信号的数字系统越 同时,在数字高清视频技术领域,正在设计下一代传输 高清晰、互动视频的设备。 来越困难。
本文的目的是提供引一些有关在数字系统信号完整性 相关的见解,并说明其原因,特点,影响和解决方案。 众多技术正在推动数据传输率进步。新兴的串行总线正 在打破并行总线构架的瓶颈。在一些情况下,故意增加 系统时钟抖动以减少意外辐射。更小、更密集的电路板, 采用球栅阵列封装和埋孔设计,这些都已成为IC芯片供 应商寻求最大限度地提高密度并尽量减少路径长度新的 方式。

【外研社Unipus】新探索(基础级)读写U1课件_AW

【外研社Unipus】新探索(基础级)读写U1课件_AW

• write an opinion essay on whether personality changes over time
CONTENTS
1 Academic Writing
Writing model Language for writing Writing skill Writing task
8. _S_e_n_s_i_n_g_ people rely on concrete information; for example, evidence that can be seen, heard, or felt.
Academic writing
ห้องสมุดไป่ตู้
Academic writing
Task 2
You are going to learn about more words on personality types. Both scientists and amateurs use these eight terms to talk about personality types. Some words may already be familiar to you, but they have a specialized usage for this topic.
7. If you are someone who thinks any situation can have many different outcomes, that there is no stable structure in place, and so anything is possible, you are probably a(n) _p_e_r_c_e_iv_i_n_g_ person.

工业机器人运动学-1数学基础

工业机器人运动学-1数学基础

则可得到如图1.8所示的点向量n.变换过程如下
1 00 4 2
6
0 1 0 -3 7
4
n = Trans <4, -3, 7> w = 0 0 1 7 3 = 10
0 00 1 1
1
z
z
•n
•v
0
2
y
2
w•
u•
•w
x
-7
•v
图1.7 Rot ( z, 90°) Rot ( y, 90°)
0•

7
y
x
已知两个向量
a = ax i + ay j + az k
b = bx i + by j + bz k
〔1.1〕
向量的点积是标量.用" ·"来定义向量点积,即
a ·b = ax bx + ay by + az bz
〔1.2 〕
向量的叉积是一个垂直于由叉积的两个向量构成的平面的向量.用"×" 表示叉积,即
1.2.1 点向量〔Point vectors〕 点向量描述空间的一个点在某个坐标系的空间位
置.同一个点在不同坐标系的描述及位置向量的值也不同.如图 1.1中,点p在E坐标系上表示为 Ev,在H坐标系上表示为 Hu,且v ≠ u.一个点向量可表示为
v = ai + bj + ck 通常用一个〔n + 1〕维列矩阵表示,即除 x、y、 z 三个方向上的分量外,再加一个比例因子 w ,即
01
0 001
1
0
0
1
如果按着逆序旋转,首先绕y轴旋转90°,然后再绕z轴旋转90°,其结果为

Sensata IWR-1单频道无线接收器说明书

Sensata IWR-1单频道无线接收器说明书

Page 1OB SO L E T E| IWR-1SINGLE CHANNEL WIRELESS RECEIVERSPECIFICATIONSThe IWR-1 is a single channel receiver designed to pair with any of the Sensata range of IWT wireless transmitters to form a cost-effective replacement of traditional wired transducers. This offers a low cost solution to inaccessible or expensive installation environment. The receiver has a user selectable voltage or mA output corresponding to the calibrated range of the remote Wireless Transducer and 5A rated changeover contacts for alarm functionality.User configuration is possible, however the single channel transmitter/receiver combination is designed to work ‘out of the box’ offering a simple plug and play solution to remote measurement applications. With the standard 0dBI antenna, a line-of-sight range of up to 500 m can be achieved and, using the optional 3dBI antenna, up to 750m (LOS) is achievable.Electrical ProtectionFeatures• Pairs with the IWT range of wireless transmitters • User-selectable 1-5V or 4-20 mA receiver output • Clean contact output for process, low battery or loss of signal alarm function• Simple DIL switch pairing with the IWT transmitters • Up to 500 m range, line-of-sight • 12 to 32 V dc powered• End-to-end accuracy of ±0.25% FS BFSL • LED indication of wireless link• DIN rail or wall mounting kits available• Five channel receiver available - see data sheet IWR-5**Consult relevant IWT Installation manual and data sheet for set-up of alternative transmission rates.Page 2EDIMENSIONSAll dimensions are in millimeters.System Performance (@ +20°C)Temperature Ratings*End-to-end zero tare function available, see user manual.Instrument Power SourceReceiver Input*Compliant with EN 300 328, V1.8.1Enclosure Specifications*Other materials on request.**Consult Installation Manual to ensure adequate signal path between transmitter and receiver.Page 3CONTACT USEUROPE+44 (0)1202 897969*********************Cynergy3 Components Ltd.7 Cobham Road,Ferndown Industrial Estate,Wimborne, Dorset,BH21 7PE, United Kingdom USA+1 310 561 8092 / +1 866 258 5057*********************Sensata Technologies, Inc. (“Sensata”) data sheets are solely intended to assist designers (“Buyers”) who are developing systems that incorporate Sensata products (also referred to herein as “components”). Buyer understands and agrees that Buyer remains responsible for using its independent analysis, valuation, and judgment in designing Buyer’s systems and products. Sensata data sheets have been created using standard laboratory conditions and engineering practices. Sensata has not conducted any testing other than that specifically described in the published documentation for a particular data sheet. Sensata may make corrections, enhancements, improvements, and other changes to its data sheets or components without notice.Buyers are authorized to use Sensata data sheets with the Sensata component(s) identified in each particular data sheet. HOWEVER, NO OTHER LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OTHERWISE TO ANY OTHER SENSATA INTELLECTUAL PROPERTY RIGHT, AND NO LICENSE TO ANY THIRD PARTY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT, IS GRANTED HEREIN. SENSATA DATA SHEETS ARE PROVIDED “AS IS”. SENSATA MAKES NO WARRANTIES OR REPRESENTATIONS WITH REGARD TO THE DATA SHEETS OR USE OF THE DATA SHEETS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING ACCURACY OR COMPLETENESS. SENSATA DISCLAIMS ANY WARRANTY OF TITLE AND ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT, QUIET POSSESSION, AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHTS WITH REGARD TO SENSATA DATA SHEETS OR USE THEREOF.All products are sold subject to Sensata’s terms and conditions of sale supplied at SENSATA ASSUMES NOLIABILITY FOR APPLICATIONS ASSISTANCE OR THE DESIGN OF BUYERS’ PRODUCTS. BUYER ACKNOWLEDGES AND AGREES THAT IT IS SOLELY RESPONSIBLE FOR COMPLIANCE WITH ALL LEGAL, REGULATORY, AND SAFETY-RELATED REQUIREMENTS CONCERNING ITS PRODUCTS, AND ANY USE OF SENSATA COMPONENTS IN ITS APPLICATIONS, NOTWITHSTANDING ANY APPLICATIONS-RELATED INFORMATION OR SUPPORT THAT MAY BE PROVIDED BY SENSATA.Mailing Address: Sensata Technologies, Inc., 529 Pleasant Street, Attleboro, MA 02703, USAOB SOL EORDERING OPTIONSMade in the UK*Free download user configuration software。

Ovation I O Reference Manual

Ovation I O Reference Manual

This publication adds the Eight Channel RTD module to the Ovation I/O Reference Manual. It should be placed between Sections 19 and 20.Date: 04/03IPU No.243Ovation ® Interim Publication UpdatePUBLICATION TITLEOvation I/O Reference ManualPublication No. R3-1150Revision 3, March 2003Section 19A. Eight Channel RTDModule19A-1. DescriptionThe Eight (8) channel RTD module is used to convert inputs from Resistance Temperature Detectors (RTDs) to digital data. The digitized data is transmitted to the Controller.19A-2. Module Groups19A-2.1. Electronics ModulesThere is one Electronics module group for the 8 channel RTD Module:n5X00119G01 converts inputs for all ranges and is compatible only with Personality module 5X00121G01 (not applicable for CE Mark certified systems).19A-2.2. Personality ModulesThere is one Personality module groups for the 8 channel RTD Module:n5X00121G01 converts inputs for all ranges and is compatible only with Electronics module 5x00119G01 (not applicable for CE Mark certified systems).19A-2.3. Module Block Diagram and Field Connection WiringDiagramThe Ovation 8 Channel RTD module consists of two modules an electronics module contains a logic printed circuit board (LIA) and a printed circuit board (FTD). The electronics module is used in conjunction with a personalty module, which contains a single printed circuit board (PTD). The block diagram for the 8 channel RTD moduleis shown in Figure 19A-1.Table 19A-1. 8 Channel RTD Module Subsystem ChannelsElectronic Module Personality Module85X00119G015X00121G01Figure 19A-1. 8 Channel RTD Module Block Diagram and Field Connection Wiring Diagram19A-3. SpecificationsElectronics Module (5X00119)Personality Module (5X00121)Table 19A-2. 8 Channel RTD Module SpecificationsDescription ValueNumber of channels8Sampling rate50 HZ mode: 16.67/sec. normally. In 3 wire mode, leadresistance measurement occurs once every 6.45 sec.during which the rate drops to 3/sec.60 HZ mode: 20/sec. normally. In 3 wire mode, leadresistance measurement occurs once every 6.45 sec.during which the rate drops to 2/sec.Self Calibration Mode: Occurs on demand only. The ratedrops to 1/sec. once during each self calibration cycle.RTD ranges Refer to Table 19A-3.Resolution12 bitsGuaranteed accuracy (@25°C)0.10% ±[0.045 (Rcold/Rspan)]% ± [((Rcold + Rspan)/4096 OHM)]% ± [0.5 OHM/Rspan]% ±10 m V ± 1/2LSBwhere:Rcold and Rspan are in Ohms.Temperature coefficient 10ppm/°CDielectric isolation:Channel to channel Channel to logic 200V AC/DC 1000 V AC/DCInput impedance100 M OHM50 K OHM in power downModule power 3.6 W typical; 4.2 W maximumOperating temperature range0 to 60°C (32°F to 140°F)Storage temperature range-40°C to 85°C (-40°F to 185°F)Humidity (non-condensing)0 to 95%Self Calibration On Demand by Ovation ControllerCommon Mode Rejection120 dB @ DC and nominal power line frequency+/- 1/2%Normal Mode Rejection100 dB @ DC and nominal power line frequency+/- 1/2%Table 19A-3. 8 Channel RTD RangesScale #(HEX)Wires Type Tempo FTempo CRcold(ohm)Rhot(ohm)Excitationcurrent(ma)Accuracy± ±countsAccuracy± ±% ofSPAN1310OhmPL0 to1200–18 t o6496106.3 1.090.222310OhmCU 0 to302–18 t o1508.516.5 1.0 130.32D350OhmCU 32 to2840 to1405080 1.0110.2711350OhmCU 32 to2300 to1105378 1.0120.30193100Ohm PL –4 to334–16 t o16892163.671.0110.27223100Ohm PL 32 to5200 to269100200 1.0100.25233100Ohm PL 32 to10400 to561100301 1.0100.25253120Ohm NI –12 t o464–11 t o240109360 1.0100.25263120Ohm NI 32 to1500 to70120170 1.0130.32283120Ohm NI 32 to2780 to122120225 1.0110.27804100Ohm PL 32 to5440 to290100 208 1.0100.25814100Ohm PL 356 t o446180 t o230168 186 1.0300.74824200Ohm PL 32 to6980 to370200 473 1.0120.30834200Ohm PL 514 t o648268 t o342402452 1.0290.71844100Ohm PL 32 to1240 to51100120 1.0190.47854100Ohm PL 32 to2170 to103100 140 1.0130.3286 4100Ohm PL 32 to4120 to211100 180 1.0110.27874100Ohm PL 32 to7140 to379100 240 1.0100.25884120Ohm PL 511 t o662266 t o350200230 1.0240.5919A-4. 8 Channel RTD Terminal Block Wiring Information19A-4.1. Systems Using Personality Module 5X00121G01 Each Personality module has a simplified wiring diagram label on its side, which appears above the terminal block. This diagram indicates how the wiring from the field is to beconnected to the terminal block in the base unit. The following table lists and defines the abbreviations used in this diagram.Table 19A-4. Abbreviations Used in the DiagramAbbreviation Definition+IN, -IN Positive and negative sense input connectionEarth ground terminal. Used for landing shields when the shield is to begrounded at the module.PS+, PS-Auxiliary power supply terminals.RTN Return for current source connection.SH Shield connector. used for landing shields when the shield is to begrounded at the RTD.SRC Current source connection.Note:PS+ and PS- are not used by this module.19A-5. 8 Channel RTD Module Address Locations19A-5.1. Configuration and Status RegisterWord address 13 (D in Hex) is used for both module configuration and module status. The Module Status Register has both status and diagnostic information. The bit information contained within these words is shown in Table 19A-5.Definitions for the Configuration/Module Status Register bits:Bit 0:This bit configures the module (write) or indicates the configuration state of the module (read). A “1” indicates that the module is configured. Note that until the module is configured, reading from addresses #0 through #11 (B in Hex) will produce an attention status.Bit 1:This bit (write “1”) forces the module into the error state, resulting in the error LED being lit. The read of bit “1” indicates that there is an internal module error,or the controller has forced the module into the error state. The state of this bit is always reflected by the module’s Internal Error LED. Whenever this bit is set,an attention status is returned to the controller when address #0 through #11(B in Hex) are read.Table 19A-5. 8 Channel RTD Configuration/Status Register (Address 13 0xD in Hex)Bit Data Description -Configuration Register (Write)Data Description -Status Register (Read)0Configure Module Module Configured(1 = configured; 0 = unconfigured)1Force errorInternal or forced error(1 = forced error; 0 = no forced error)250/60 Hz select (0 = 60Hz, 1 = 50Hz)50/60 Hz System (1 = 50Hz) d(read back)3SELF_CAL (Initiates Self Calibration)Warming bit (set during power up or configuration)40050060Module Not Calibrated 708CH.1 _ 3/4 Wire.CH.1 _ 3/4 Wire - Configuration (read back)9CH.2 _ 3/4 Wire.CH.2 _ 3/4 Wire - Configuration (read back)10CH.3 _ 3/4 Wire.CH.3 _ 3/4 Wire - Configuration (read back)11CH.4 _ 3/4 Wire.CH.4 _ 3/4 Wire - Configuration (read back)12CH.5 _ 3/4 Wire.CH.5 _ 3/4 Wire - Configuration (read back)13CH.6 _ 3/4 Wire.CH.6 _ 3/4 Wire - Configuration (read back)14CH.7 _ 3/4 Wire.CH.7 _ 3/4 Wire - Configuration (read back)15CH.8 _ 3/4 Wire.CH.8 _ 3/4 Wire - Configuration (read back)Bit 2:The status of this bit (read) indicates the conversion rate of the module, write to this bit configures the conversion rate of A/D converters as shown below.see Table 19A-6.Bit3:Write: This bit is used to initiate self-calibration. Read: This bit indicates that the module is in the “Warming” state. this state exists after power up and ter-minates after 8.16 seconds. the module will be in the error condition during the warm up period.Bit4 & 5:These bits are not used and read as “0” under normal operation.Bit 6:This bit (read) is the result of a checksum test of the EEPROM. A failure of this test can indicate a bad EEPROM, but it typically indicates that the module has not been calibrated. A “0” indicates that there is no error condition. If an error is present, the internal error LED is lit and attention status will be returned for all address offsets 0-11 (0x0 - 0xB). The “1” state of this bit indicates an unre-coverable error condition in the field.Bit 7:This bits is not used and read as “0” under normal operation.Bit 8 - 15:These bits are used to configure channels 1 - 8 respectively for 3 or 4 wire op-eration. A “0” indicates 3 wire and a “1” indicates 4 wire operation, see Table 19A-7 and Table 19A-8).Word address 12 (0xC) is used to configure the appropriate scales for Channels 1 - 4 (refer to Table 19A-7 and Table 19A-8).Table 19A-6. Conversion Rate Conversion Rate (1/sec.)Bit 260 (for 60Hz systems)050 (for 50Hz systems)1Table 19A-7. Data Format for the Channel Scale Configuration Register(0xC)Bit Data Description Configuration (Write)Data Description Status (Read)0 Configure Channel #1scale - Bit 0Channel #1 scale configuration (read back) - Bit 01Configure Channel #1scale - Bit 1Channel #1 scale configuration (read back) - Bit 12Configure Channel #1scale - Bit 2Channel #1 scale configuration (read back) - Bit 23Configure Channel #1scale - Bit 3Channel #1 scale configuration (read back) - Bit 34Configure Channel #2 scale - Bit 0Channel #2 scale configuration (read back) - Bit 05Configure Channel #2 scale - Bit 1Channel #2 scale configuration (read back) - Bit 16Configure Channel #2 scale - Bit 2Channel #2 scale configuration (read back) - Bit 27Configure Channel #2 scale - Bit 3Channel #2 scale configuration (read back) - Bit 38Configure Channel #3 scale - Bit 0Channel #3 scale configuration (read back) - Bit 09Configure Channel #3 scale - Bit 1Channel #3 scale configuration (read back) - Bit 1Caution:Configuring any or all channel scales while the system is running will cause all channels to return attention status for up to two seconds following the reconfiguration.Caution:Configuring any or all channel scales while the system is running will cause all channels to return attention status for up to two seconds following the reconfiguration.10Configure Channel #3 scale - Bit 2Channel #3 scale configuration (read back) - Bit 211Configure Channel #3 scale - Bit 3Channel #3 scale configuration (read back) - Bit 312Configure Channel #4 scale - Bit 0Channel #4 scale configuration (read back) - Bit 013Configure Channel #4 scale - Bit 1Channel #4 scale configuration (read back) - Bit 114Configure Channel #4 scale - Bit 2Channel #4 scale configuration (read back) - Bit 215Configure Channel #4 scale - Bit 3Channel #4 scale configuration (read back) - Bit 3Table 19A-8. Data Format for the Channel Scale Configuration Register(0xE)Bit Data Description Configuration (Write)Data Description Status (Read)0 Configure Channel #5 scale - Bit 0Channel #5 scale configuration (read back) - Bit 01Configure Channel #5 scale - Bit 1Channel #5 scale configuration (read back) - Bit 12Configure Channel #5 scale - Bit 2Channel #5 scale configuration (read back) - Bit 23Configure Channel #5 scale - Bit 3Channel #5 scale configuration (read back) - Bit 34Configure Channel #6 scale - Bit 0Channel #6 scale configuration (read back) - Bit 05Configure Channel #6 scale - Bit 1Channel #6 scale configuration (read back) - Bit 16Configure Channel #6 scale - Bit 2Channel #6 scale configuration (read back) - Bit 27Configure Channel #6 scale - Bit 3Channel #6 scale configuration (read back) - Bit 38Configure Channel #7 scale - Bit 0Channel #7 scale configuration (read back) - Bit 09Configure Channel #7 scale - Bit 1Channel #7 scale configuration (read back) - Bit 110Configure Channel #7 scale - Bit 2Channel #7 scale configuration (read back) - Bit 211Configure Channel #7 scale - Bit 3Channel #7 scale configuration (read back) - Bit 312Configure Channel #8 scale - Bit 0Channel #8 scale configuration (read back) - Bit 013Configure Channel #8 scale - Bit 1Channel #8 scale configuration (read back) - Bit 114Configure Channel #8 scale - Bit 2Channel #8 scale configuration (read back) - Bit 215Configure Channel #8 scale - Bit 3Channel #8 scale configuration (read back) - Bit 3Table 19A-7. Data Format for the Channel Scale Configuration Register(0xC)19A-6. Diagnostic LEDsTable 19A-9. 8 Channel RTD Diagnostic LEDsLED DescriptionP (Green)Power OK LED. Lit when the +5V power is OK.C (Green)Communications OK LED. Lit when the Controller is communicatingwith the module.I (Red)Internal Fault LED. Lit whenever there is any type of error with themodule except to a loss of power. Possible causes are:n - Module initialization is in progress.n - I/O Bus time-out has occurred.n - Register, static RAM, or FLASH checksum error.n - Module resetn - Module is uncalibrated.n - Forced error has been received from the Controllern - Communication between the Field and Logic boards failedCH1 - CH 8 (Red)Channel error. Lit whenever there is an error associated with a channel or channels. Possible causes are:n - Positive overrangen - Negative overrangen Communication with the channel has failed。

艾为产品介绍PDF

艾为产品介绍PDF
型号 AW9655QNR AW9635QNR AW9656QNR AW9636QNR AW9666QNR AW9668QNR AW9670QNR AW9910STR AW9920STR AW9921STR 特性 5路共阳,一线调光 5路共阳,PWM调光 6路共阳,一线调光 5路共阳,PWM调光 四模升压,6路共阳 四模升压,8路共阳 四模升压,10路共阳 10路串联背光,一线调光 10路串联背光,PWM调光 10路串联背光,PWM调光.集成肖特基二极管 封装 QFN3x3-16L QFN3x3-16L QFN3x3-16L QFN3x3-16L QFN3x3-16L TQFN3x3-20L TQFN3x3-20L SOT23-5L SOT23-5L DFN2x3-10L
TDD-Noise-输入干扰
湘海电子有限公司Http:\\
远端地与近端地的不一致导致了输入干扰
Tankertanker Design
音乐功放系列全线升级
型号 AW8145CSR AW8155FCR AW8120FCR AW8010AFCR AW8090ACOR AW8110CSR AW8188TQR 特性 防破音,超低EMI AB/D自由切换的第二代音乐功放 AB/D自由切换的第二代音乐功放 超低EMI AB类功放 防破音,超低EMI D类双声道立体声,防破音,超低EMI 封装 FC9 FC9 FC9 FC9 COL9 CSP9 16-Pin TQFN
AW3210典型应用图1
Tankertanker Design
AW3210典型应用图2
Tankertanker Design
AW3210典型应用图3
Tankertanker Design
射频系列
型号 AW5007STR 特性 低噪声放大器 封装 SOT363-6L

(完整版)AWL-Sublist1

(完整版)AWL-Sublist1

(完整版)AWL-Sublist1V ocabulary Exercises for the Academic Word ListSublist 1 – ExercisesExercise 1aExercise 1b1. He did an _______________ of the way children learn language for hisMaster's thesis.analysis2. He was arrested for drunk driving because he had drunk more than the _______________ limit of alcohol. legal3. The culture of the United States is quite _______________ to that of Canada.similar 4. The Canadian _______________ is largely based on natural resources.economy5. Environmental pollution seems to be an important _______________ inthe increase in cancers all over the world.factor6. The apartment will be _______________ on June first.available7. The young popstar became famous while still in high school after winninga _______________ with a major record label.contract8. Your continued lateness for class _______________ to me that you are notreally a very serious student.indicates9. Living in Berlin during the _______________ when the Berlin Wall wastorn down was an unforgettable experience.period10. Some _______________ into second language learning suggests that oralfluency may increase with moderate amounts of alcohol.research1. There are wind-surfers and kayaks _______________ for rent at the lake. available2. The planet Mars has a surface which is somewhat _______________ tothat of our moon.similar3. It could take weeks to _______________ all the data, but when we do, theanalyze4. Spencer's father is doing _______________ into the melting of the polarice cap in the Arctic.research5. The boss was really excited when he heard we had won the _______________.contract6. Here in British Columbia, it is not _______________ to sell cigarettes topeople under the age of sixteen.legalExercise 1cExercise 2a7. The low number of people attending the lecture is a clear _______________ of lack of interest in the topic. indication8. Alcohol was a major _______________ in a car accident which claimedthree lives over the weekend.factor9. Canada's _______________ growth has been quite consistent for the lastfew years.economic10. Canada went through a _______________ of economic prosperity in the1950s.period1. _______________ of water is vital to all plant and animal life.availability2. We need to find a more _______________ way to manufacture ourproducts because our profit margin is too low.economical3. Warmer than average weather was the deciding _______________ inour decision to postpone our ski trip.factor4. Interest in the planet Mars has greatly increased since_______________ of water raised the possibility that life in some form may have evolved there.indications 5. Music downloaders are questioning the _______________ of file sharing, claiming the law is unclear on the matter.illegality 6. Meetings will be held _______________ for the members of the project to discuss their progress.research 8. We are _______________ obliged to deal with this firm.contractually9. The DNA of chimpanzees shows a remarkable _______________ tothat of humans.similarity10. At the end of a research project, the researcher is normally faced with lots of observations which need to be_______________.analyzed1. One of the _______________ of studying English in Victoria is thatyou have the opportunity to speak English outside of class. Benefits2. The cat slowly _______________ the bush where the mouse was hiding.Approached 3. A department store spokesman says that their new outlet will _______________ more than 75 permanent jobs in the city.CreateExercise 2bExercise 2c4. The government recently passed _______________ which prohibitstobacco advertising at sporting events.legislation5. There are many things you can do in your everyday life to help protectthe _______________, such as recycling or riding a bicycle. environment6. The _______________ of the river is somewhere in the mountains.source7. You must _______________ to our offer within 30 days or it will bewithdrawn.respond8. The government has announced a special program to help _______________ new small businesses.finance9. It is the _______________ of our government that no one should bewithout food or shelter.policy10. The oldest _______________ to win a medal in the Olympics wasOscar Swahn, who won a silver medal in shooting at the age of 72.individual1. The government is offering more programs which _______________benefit2. She _______________ her boss about getting a raise.approached3. Celebrities generally receive so much fan mail that it is impossible to_______________ to each and every letter personally.respond4. Victoria is generally a safe and friendly _______________ for foreignstudents to study in.environment5. My father's company has been experiencing some _______________difficulties, so they are going to have to lay off some staff. financial6. Many people the world over are urging governments to pass _______________ limiting the development of new cloning technologies.legislation 7. In the past 5 years, this government has _______________ 15 new major parks in the province.created8. The refund _______________ at this store allows you to return itemsfor a credit, but not for cash.policy9. The main _______________ of jobs for teenagers in Victoria duringthe summertime is the tourist industry.source10. Do you believe that _______________ rights are more important than the collective rights of society?individualExercise 3a1. Some doctors suggest that taking vitamin pills is not really very _______________ to our health.beneficial 2. The native people of our province have many wonderful legends regarding the _______________ of our world. creation3. The major _______________ issue in Fiji is how to dispose of wastematerials in a responsible manner.environmental4. At Computaschools, we offer _______________ learning programsthat fit your needs, and let you progress at your own rate.individualized5. Denise and I have very different _______________ to the job, but Ithink we are both quite successful in what we do.6. Children in Canada generally become _______________ independent of their parents in their 20s. financially7. The _______________ of this company is that either parent can takea six-month paid leave after the birth of a child.policy8. The government is considering _______________ the striking nurses back to work.legislating 9. Wind is now the world's fastest growing _______________ of power.source10. In _______________ to Indian nuclear weapons testing, Pakistanconducted its own tests in 1998.response1. The old woman couldn't speak English, so her grandchildren had to _______________ for her. interpret2. For very young children, the _______________ of truth and lies are notvery clear.concepts3. The English Language Program at the University of Victoria was _______________ in May of 1987. established4. Our society supposedly believes in the _______________ of equalityfor all.principle5. We will need to examine a lot more _______________ before we canmake any conclusions.data6. They want to build a new shopping mall in an _______________ whichis presently forest.area7. Smoking is a _______________ cause of cancer.major 8. Doctors are as yet unsure what _______________ diet plays in the development of the disease. roleExercise 3bExercise 3c9. Coca-Cola has a secret _______________ for its beverage that is onlyknown to a small group of people.formula10. I don't know what you mean. Can you be a bit more _______________about what problems your car is having?specific1. Under the Soviet system, the economy of Georgia was run on socialist_______________, such as public ownership of the means of production. principles2. The _______________ of an arranged marriage is almost totally unknown in this country.concept 3. Gasoline has no _______________ freezing point; it freezes at any temperature between -180 and -240 degrees Fahrenheit.specific4. The police have not yet been able to _______________ the cause of deathfor a man who was found floating in the river.establish5. We had to memorize about 20 different _______________ for the mathtest.formulas6. The country covers a total _______________ of over 1,725 square kilometres.area 7. The world's _______________ rainforests are located in South and Central America, and in South-east Asia. major8. Jefferson has a largely defensive _______________ to play on the team,and is not known for scoring.role9. Heinrich W. Brandes made the first weather map in 1815, based on _______________ gathered in 1783.data10. We need an accountant to _______________ our financial statements. interpret1. Very young children _______________ ideas of depth, height andsize in different ways from adults.conceptualize2. Guatemala is the only country in the world where American Indiansare a _______________.majority3. The _______________ of a U.N. peacekeeping force was supposedto reduce the number of conflicts internationally.establishment4. Varying _______________ of the Bible have resulted in the creation of many different religious groups within Christianity. interpretationsroleExercise 4aExercise 4b6. The oranguatan obviously spent a lot of time and effort _______________ his plan for escape from the zoo. formulating7. This is the first time that a political party has done advertising _______________ aimed at minority voters. specifically8. In April of 1978, Afghanistan's armed forces seized power, and established a government based on Islamic _______________. principles9. There is a large play _______________ for the children near the entrance to the housing complex.area 10. Analysis of _______________ is a difficult and complicated process.data1. We will use the first week of classes to _______________ your speakingability.assess2. The test will _______________ of a series of true or false questions andtwo essay questions.consist3. Nick's job as a salesman _______________ a lot of travelling around theprovince.involves4. The traditional family _______________ has undergone a great many changes in the last few decades, due to the increase in the divorce rate. structure5. The _______________ of the heart is to pump blood throughout the body. function6. The grammar notes appear in the back _______________ of the book. section7. His _______________ for the renovations to our house was $2,250.estimate8. Attention passengers on flight 514 to Honolulu. Please _______________to gate 33 where your plane is now boarding.proceed9. It can be quite difficult to clearly _______________ abstract ideas such aslove or friendship.define10. I don't think hitting children is a very effective _______________ of teaching them anything.method1. I still don't even know how to use half the _______________ of this computer program.functions2. The polar bear's diet _______________ almost entirely of seals and fish. consistssmall children has been very successful.methodExercise 4c4. Fever is usually _______________ as an oral temperature above 37.4 degrees.defined 5. The value of his art collection has been _______________ at over $200,000.assessed6. The first _______________ of the New York City subway was opened in1900 after four years of work.section7. At an _______________ population of 40 million, there are more thantwice as many kangaroos as people in Australia.estimated8. In August 1990, about 15,000 vehicles were _______________ in the biggest traffic jam in Japan's history. involved 9. After loading our skis and bags, we _______________ onto the bus.proceeded10. The eye of an octopus is very similar in _______________ to the humaneye.structure1. She is very slow and _______________ in her work, but she certainly does an excellent job.methodical2. The power station should be fully _______________ by the end ofthe year.functional3. The company is required to do an _______________ of theenvironmental damage that would be done to the area before beginning the project.assessment 4. The boys' suppers for the three days they went camping together _______________ of hamburgers, chocolate bars and potato chips.consisted5. Research shows that people usually _______________ the amountof time it will take them to learn a second language.underestimate6. The government has said that construction of the factory will not beallowed to _______________ until changes are made to reduce the impact on the environment.proceed 7. The island of Cyprus is divided into two _______________: Greekand Turkish.8. The police have as yet no proof of his _______________ in the robbery.involvement 9 . According to anthropologists, there appears to be a universal _______________ of human beauty. definition 10. The building suffered significant _______________ damage during the earthquake.structuralExercise 5aExercise 5b1. The police freed a suspected murderer because they didn't have enough_______________ to charge him.evidence2. It is important to learn a _______________ which will help you to guessthe meaning of new vocabulary from context.process3. When you didn't come to work I just _______________ that you weresick.assumed4. Many words in English are _______________ from French. derived5. The woman was unable to _______________ the man who stole her purse because it had been too dark at the time of the robbery. identify6. The accident _______________ about 9:00 this morning.occurred7. Canada's aboriginal population _______________ a small but importantpart of our country.constitutes8. An important _______________ under discussion in the world of sporttoday is the participation of professional athletes in the Olympic Games.issue9. Many _______________ now believe that vocabulary development iseven more important than grammar study for second language learners.theorists10. Jobs in the tourism _______________ have risen by over 5% this year. sector1. About 16% of Americans work in the manufacturing _______________. sector2. Current _______________ trace our first human ancestor to Africa about5 to 7 million years ago.theories3. Bananas and coffee together _______________ almost 38% of Costa Rica's export earnings.4. One can _______________ some important conclusions using the resultsof a proper set of experiments.derive5. He doesn't have enough _______________ to support his theories just yet.evidence6. Our response to the controversial social _______________ of our timewill determine our future.issues7. The music which the world _______________ with Argentina is the music of the tango.identifies8. It will take a least a month to _______________ your application for avisa.process9. Many people seem to _______________ that Canadians are just the same assumeExercise 5cExercise 6aas Americans.10. Earthquakes _______________ in the world about once every hour.occur1. The president has resigned, and the country is in the middle of a _______________ crisis.constitutional 2. The notion of the Big Bang _______________ that the universe began as a huge explosion of matter. theorizes3. A large percentage of the population of Paraguay _______________their living from agricultural activity.derives4. The body of the person killed in the fire was so badly burned that itwas _______________.unidentifiable5. There is some _______________ that a diet high in broccoli and cabbage reduces a woman's risk for breast cancer. evidence6. The union is _______________ notices that there may be a strike asearly as next week.issuing7. The data can be _______________ by computer in a matter of seconds.processed 8. Unless safety procedures are improved immediately, an accident could easily _______________.reoccur9. We shouldn't make any _______________ until we have heard fromeveryone involved in the incident.assumptions10. Tourism has been the biggest growth _______________ in the Greek economy since the 1970s. sector1. Management is meeting with _______________ to begin discussions ona new contract.labour2. He is a well-known _______________ on the language used by bees tocommunicate the location of food.authority3. Could you please _______________ the answer sheets while I hand outthe tests?distribute4. The amount of rain we receive _______________ from year to year ofcourse, but this year has been very dry.varies5. Vocabulary is generally easier to understand if you look at it in _______________.contextExercise 6bExercise 6c6. This airline seat-sale _______________ you to book your ticket at leasta month in advance.requires7. We have noticed a _______________ improvement in Teddy's attitudesince you had a talk with him.significant8. I think that the _______________ of students that have to repeat a levelin this program is usually about 25% or less.percentage9. In the future, Canada will be under great pressure to _______________fresh water to the United States.export10. It is generally quite difficult to raise a family on a single_______________ in Canada today, so very often both parents work full-time.income1. One's values should be viewed in the _______________ of one's culture. context2. Every Christmas, she works hard to _______________ food and blankets to the homeless.distribute3. The diet of brown bears _______________ depending on what foods areavailable in that particular season or habitat.varies4. Oman's economy is based on petroleum, which accounts for 99 percentof _______________ revenues.export5. Studies show that women are much less likely than men to occupy positions of _______________ at work. authority6. Visas are not _______________ for Americans who plan to stay in England for less than three months. required7. Our family _______________ was lower than usual last year becausemy wife quit work in August to have our baby.income8. Huang and van Naerssen have found that reading outside class is themost _______________ predictor of speaking ability in a second language. significant9. She invests a certain _______________ of her earnings in the stock market each month.percentage 10. The _______________ of weeding the garden was too much for his weak back.labour1. You have to _______________ the remark in the overall discussion tofully understand what was meant.contextualize2. I'm not allowed to _______________ any purchases. You'll have to authorizetalk to my boss.3. The _______________ of raw logs to Asia and the U.S. continues toexportation be one of this province's most important industries.4. Highly unequal income _______________ remains a serious problemdistribution in Brazil.5. Denmark has the highest rate of _______________ tax in the world,incomeat 68%.6. Inflation has risen by less than 1 _______________ this year. percent7. Obviously, one of the first _______________ to be a firefighter is that requirements you be in excellent physical shape.8. Her English improved _______________ after she got a Canadian significantly boyfriend.9. He works as a _______________ on a roadbuilding crew for the city. labourer10. This restaurant has a wonderful buffet with dishes fromvarious_______________ countries.。

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They have intimate knowledge in specific discipline and keep abreast of the latest developments in that area. To be concerned with them is a step further to a successful writing and communication.
1.2.1 Determining your purpose
No matter what kind of writing you do, you should have a specific and clear purpose. In academic writing, the purpose is often to explain, inform or summarize, whereas journalistic writing usually seeks to inform or to persuade. Writing for scientific purposes may be to inform your audience of your scientific discovery, research findings or experimental results.
A letter to your parents or your spouse would have a casual and intimate tone and many slang words or informal words and structures would be used. However, an application for a position in a big company or a famous university in the US would have quite a different tone from a letter to your family. It would be formal and serious. A scientific report or an article for a leading journal would take a different form.
You must be very clear about what you are going to write is original thinking rather than it is just common knowledge. As you conduct your research, you learn new materials by building on what you already know. You are expected to think about that new material, formulate a thesis statement about it, and organize the information to write a research paper about it.
博士研究生英语课公共邮箱 ustbbsyy@ password:123456
Academic Writing
Objectives of the course
The objectives of the course is to enable students to: produce academic research papers for term assignments and for publishing papers in academic journals conduct independent research in a library practice smoothly incorporating paraphrases and summaries into own writing learn how to properly document sources and avoid plagiarism synthesize research into an academic paper with proper references
1.2.3 Paying attention to your tone
Tone in this context refers to the way of what you are going to say or what you have written. To put it simply, tone means how you are going to say what you want to say. It can tell your attitude towards your subject. Tone can be realized by your choice of words, grammatical structures, and even by the length of your sentences.
Non-fiction
Popular
Professional Technical Academic
Literary
Scientific
1.2 Basic characteristics of Academic writing
Academic writing is difficult and painstaking. It takes study and practice to develop the skill. When you start your writing, you should be very clear about your purpose, audience, and tone.
Method
This course will be based on a process approach to academic writing. We will go through all the steps of the research paper writing process starting with the pre-writing stage (e.g. topic selection and narrowing), to individual skills needed for academic writing (e.g. paraphrasing, and summarizing), and finally to the actual mechanics of structuring the individual sections of a paper (e.g. writing abstracts). By the end of the course it is hoped that you will feel more confident about tackling the papers and assignments you will need to write for your dissertation abstract and for publishing papers in the leading journals of the world.
Academic writing would: focus on explaining, comparing and contrasting, evaluating, or analyzing concepts, theories, and summarizing research findings describe the original research a researcher has completed or is currently working on present previously unknown information for the first time
1.1 Definition of academic writing
a kind of writing for academic purposes a published report describing some original research a researcher has done or has in progress a formal, of certain length, and well-documented paper, which explores, discusses, or analyzes a certain factual or theoretical question a published paper which can mean anything that appears in a journal with international circulation of hundreds of thousands of copies each issue.
1.2.2 Considering your audience
One of the most important things to consider, whenever you start writing, is your audience, the people who will reaowing your intended audience will help you reach your goal of communicating clearly and effectively. In academic writing for scientific purposes, your audience is primarily scientists or professors.
The purpose of a piece of writing will determine the rhetorical form (organizational form and style) chosen for it Different types of writing will adopt different organizational form. An article that tries to inform readers that high technology will bring a lot of conveniences to human being has a different purpose from an article that explains how high technology has bad effects on human life.
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