AP-C30C 数字压力传感器

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层压机

层压机

BSL2236OAC-III全自动层压机技术规格书1、主要技术指标A.层压机规格型号:BSL2236OAC-IIIB.设备外形尺寸: 12041mm×3433mm×2105mmC.设备重量:16.5t/台;D.供电要求: AC380V±10%,3相5线E.压缩空气流量: ≥0.45m3/minF.压缩空气压力: MAX 0.8 MpaG.有效层压面积:2200mm× 3600mmH.层压腔高度: 30mmI.工作温度:层压工艺温度可在100℃至180℃之间设置J.加热平台温度分布不均匀性:≤±1.5℃K.温控精度:±1℃L.控温范围:30℃-180℃M.真空泵抽真空速率:≥70L/SN.上下室真空度:抽真空2min内≤100Pa。

O.加热板不平整度:加热温度在100°C ~165°C下每平方米不平整度≤200μm。

P.镗孔式加热板厚度不小于60mm。

Q.适用范围:适用普通工作环境几班次全运转工作;可层压不同规格组件;层压固化可同时进行也可分开进行;工作节拍可以设定,适用于所有型号的组件原材料。

R.设备正常使用率:≥ 98% (整机故障率:≤2%)按持续工作一年计算。

S.设备使用寿命:≥ 10 年。

T.上盖行程:300 mm,可设定正常工作位和检修工作位,并且具有上限安全限位开关。

U.设备总功率不大于80KW,工作功率不大于40KW。

V.设备工作噪声:≤70dbA。

2、各系统特点:2.1真空系统A.机器真空腔除配有电子式真空感应计外,另设置机械真空压力表,确保突然断电情况下对机器真空度有直观的了解。

B.真空系统:真空采用四川华新南光真空泵。

真空泵真空速率≥70L/S。

C.上、下腔室分别用两台压力变送器(负压显示)进行压力检测,压力传感器采用优于SMC的日本基恩士公司产品,真空信号同时传递给PLC控制系统。

下真空室安装德国皮拉尼真空计,以提高0.1Pa到400Pa之间的测量精度,同时信号进入PLC控制系统。

数字压力开关工作原理

数字压力开关工作原理

数字压力开关工作原理数字压力开关(Digital Pressure Switch)是一种利用数字技术进行压力测量和开关控制的设备。

它根据被测介质的压力变化,将压力信号转换为数字信号,并利用这一信号来实现开关操作。

数字压力开关通常由以下几个组件组成:感压元件、信号转换模块、处理器、显示模块和开关控制模块。

感压元件是数字压力开关的核心部件,它用于测量被测介质的压力。

常用的感压元件包括压阻式感压元件、压电式感压元件和电容式感压元件。

这些元件根据压力的变化产生相应的变化信号,并将其传递给信号转换模块。

信号转换模块负责将感压元件产生的模拟信号转换为数字信号。

这一步骤通常包括两个过程:信号放大和模数转换。

信号放大可以使微弱的压力信号得到增强,提高信噪比;模数转换则将模拟信号转换为数字信号,以便于处理和分析。

处理器是数字压力开关的核心控制单元,它负责对转换后的数字信号进行处理和分析。

处理器通常采用微处理器或专用控制芯片,根据预设的阈值和控制规则,进行判断和控制。

一般情况下,数字压力开关可以设定上下限压力值,当被测压力超过或低于设定值时,处理器发出相应的控制信号。

显示模块用于显示被测压力的数值。

常见的显示模块包括液晶显示器、LED数码管等,可以将压力数值以数字形式显示,方便操作人员进行实时监测。

开关控制模块根据处理器的指令,对外部设备进行开关操作。

开关控制模块通常包括继电器、晶体管等电子元件,可以通过电磁吸合、继电器动作等方式,实现开关输出信号的传递。

数字压力开关的工作原理可以简单概括为以下几个步骤:1. 感压元件测量被测介质的压力,并将其转换为模拟信号。

2. 信号转换模块对感压元件输出的模拟信号进行放大和模数转换,得到相应的数字信号。

3. 处理器根据预设的阈值和控制规则,对数字信号进行处理和分析,判断被测压力是否超过或低于设定值。

4. 处理器根据判断结果,发出相应的控制信号,控制外部设备的开关操作。

5. 显示模块将被测压力的数值以数字形式显示出来,方便操作人员实时监测。

压力传感器的原理和应用

压力传感器的原理和应用

压力传感器的原理和应用1. 压力传感器的原理压力传感器是一种能将压力变化转化为可测量电信号的装置。

它基于压电效应或微机械系统技术(MEMS)等原理工作。

以下是压力传感器的几种常见的工作原理:1.1 压电效应压电传感器基于压电效应,当受到压力时,由压电材料(如石英、硼酸锂等)制成的传感器会发生形变产生电荷,从而产生电信号。

这种原理适用于高频、高压和高温的测量。

1.2 电阻式电阻式传感器基于电阻的变化来测量压力。

当压力施加到传感器上时,导致电阻发生变化,进而改变电流或电压的大小。

这种原理通常用于低压测量。

1.3 容量式容量式传感器利用电容的变化来测量压力。

当被测压力变化时,传感器内的电容发生变化,通过测量电容的变化来确定压力的大小。

这种原理可用于低至超低压力范围。

2. 压力传感器的应用压力传感器在各个领域中有着广泛的应用,以下列举几个主要的应用领域:2.1 工业自动化在工业自动化领域,压力传感器用于测量和监控各种液体和气体的压力。

它们常用于流体控制、液位测量、液压系统、气动系统等方面。

例如,压力传感器可用于监测管道中的液体和气体压力,以确保系统运行正常。

2.2 汽车工业汽车工业是压力传感器的重要应用领域之一。

在汽车中,压力传感器用于监测和控制发动机的燃油压力、轮胎气压、制动系统压力等。

通过实时监测压力变化,有效地提高了汽车的性能和安全性。

2.3 医疗设备在医疗设备中,压力传感器被广泛用于呼吸机、血压计、麻醉机等设备中。

它们用于监测和控制患者的血压、血氧饱和度、呼吸频率等指标,以帮助医院提供更准确、安全的医疗服务。

2.4 环境监测压力传感器也广泛应用于环境监测领域。

例如,地下水位监测、大气压力监测、建筑物结构的变形监测等都离不开压力传感器的应用。

通过实时监测压力变化,可以有效避免灾害事故的发生。

3. 压力传感器的优势压力传感器具有以下几个优势:•高精度:压力传感器能够提供高精度的压力测量,能够满足精密的工业、医疗等领域的需求。

AP-C30_C_642022_CN_1124-4

AP-C30_C_642022_CN_1124-4
只要在这一点处将压力值设定为标准 值(0),就能只检测出吸附压,而不受 原压力的变动等外部的影响,从而能 够准确地检测出吸附压。
泄漏测试
[A-2模式] 推荐型式∶(一体型) AP-C30C/C33C
[特点1] 引用一台即可以检测出充填压和泄漏压
下限值 上限值 基准值
零转移输入 输出1(泄漏压) 输出2(充填压)
标牌·天花板安装架 AP-B03
倾斜安装架 AP-B04
面板安装环 AP-A01
安装例
安装例
安装例
安装例
安装例
布尔登管式压力计替换接头 OP-35423
6
AP-C30C
尺寸规格图
放大器模组 AP-C30C 系列
30
33.8 26.6
25
8.6
25
1.8
31.1 39.5
21.2
单位: mm
20
安装架 AP-B01(选购)
※选择聚焦模式时 (AP-C31C)
基准压设在 -50.0 kPa时(使用 AP-C31C 时)
基准压
0
-30.0
-50.0
-70.0
(kPa) -101.3
-30.01 kPa 至-69.99 kPa 的范围如上表示。超过聚焦范围的情况下显示 变成 FFF 或 -FFF。
行业首创 输入、输出集成一处
输出入电路
蓝色 粉红色
0V 模拟输出/零转移输入∶切换式 (1 至 5 V)
模拟输出电路图 (AP-C30C/C31C/C33C)


粉红色 模拟输出(1 至 5 V)


蓝色
零转移输入电路图
主 要 电 路
粉红色 模拟输出(1 至 5 V)

压力传感器对温度的要求

压力传感器对温度的要求

用半导体芯片制备的压力传感器的特点是受温度的影响大,不仅存在热零点漂移还存在热灵敏度漂移。

温度明显影响压力传感器的精度。

为了消除温度的影响,就需应用各种温度补偿技术。

温度范围越宽,补偿技术难度越大,且校准工作量越大,所能保证的全温度范围的精度便越低。

为此应根据压力传感器所应用的实际温度范围和精度要求提出合理的要求。

一般将压力传感器的使用温度范围分为四类:
普通商业级,范围为- 10 - 60 ℃;工业级,范围为-25 - 80 ℃;军事级,范围为- 55 - 125 ℃;特殊级,范围为- 60 - 350 ℃。

压力传感器在室内应用时,可选择商业级;有室外应用时可选择工业级。

也可以采取措施使传感器与环境热隔离或进行加热或冷却,选择普通商业级用在- 10 ℃以下或60 ℃以上的环境中。

选择什么温度范围还应考虑传感器的电子学温度特性和机械温度特性。

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CA30CAN CAF 4TH 代三重保护电容接近传感器说明书

CA30CAN CAF 4TH 代三重保护电容接近传感器说明书

Proximity Sensors Capacitive Thermoplastic Polyester Housing Types CA30CAN/CAF.....• 4TH Generation TRIPLESHIELD TM• Adjustable sensing distance: 2 - 20 mm Flush or 4-30 mm Non-flush• Protection: short-circuit, transients and reverse polarity • Dust and humidity compensation • Dust or Temperature alarm output • Rated operational voltage: 10-40 VDC • Output: DC 200 mA, NPN or PNP • Standard Output: NO and NC• LED indications for Power-supply, Output and Stability • IP67, IP68, IP69K, Nema 1, 2, 4, 4X, 5, 6, 6P, 12• Cable and M12 connector versions availableProduct DescriptionThe CA30CA.. capacitive proximity switches feature an improved 4TH Genera-tion TRIPLESHIELD TM tech-nology. F urthermore, these sensors feature increased immunity to electromagnetic inteference (EMI), especial-ly to frequency drives. Not only does 4TH Generation TRIPLESHIELD TM feature an increased EMI, but it also increases the immuni-ty to humidity and dust. The implementation of stability indication eases the setup procedure as both Stable ON and Stable OFF positions are indicated by the Green and yellow LEDs.increased by 20 – 25 % allowing room for additional stable detection.gives an early warning that have to be cleaned.The Temperature alarm func-tion raises an alarm if the sensing surface goes beyond 60 degree celcius.The sensor housing is featur-ing IP69K as well as approval by ECOLAB for cleaning- and disinfection agents.Rated operating distance (S n ) Non-flush mounted sensor 0 - 25 mm (factory setting 25 mm), (ref. target 75x75 mm ST37, 1 mm thick, grounded) Flush mounted sensor 0 - 16 mm (factory setting 16 mm - non-flush mounted) (ref. target 48x48 mm ST37, 1 mm thick, grounded)Specifications EN 60947-5-2Housing Sensor Output Output ConnectionRated operating Ordering no. Ordering no. Ordering no.diameter type type function distance (S n ) StandardDust alarmTemperature alarmM 30 Flush NPN NO+NC Cable 0 - 16 mm CA30CAF16NA M 30 Flush NPN NO+NC M12 Plug 0 - 16 mm CA30CAF16NAM1M 30 Flush PNP NO+NC Cable 0 - 16 mm CA30CAF16PA M 30 Flush PNP NO+NC M12 Plug 0 - 16 mm CA30CAF16PAM1M 30 Flush PNP NO Cable 0 - 16 mm CA30CAF16PODU CA30CAF16POTAM 30 Flush PNP NC Cable 0 - 16 mmCA30CAF16PCDU CA30CAF16PCTA M 30 Flush PNP NC M12 Plug 0 - 16 mm CA30CAF16PCM1DUM 30 Non-Flush NPN NO+NC Cable 0 - 25 mm CA30CAN25NA M 30 Non-Flush NPN NO+NC M12 Plug 0 - 25 mm CA30CAN25NAM1M 30 Non-Flush PNP NO+NC Cable 0 - 25 mm CA30CAN25PA M 30 Non-Flush PNP NO+NC M12 Plug 0 - 25 mm CA30CAN25PAM1M 30 Non-Flush PNP NO Cable 0 - 25 mm CA30CAN25PODU CA30CAN25POTA M 30Non-FlushPNPNCCable0 - 25 mmCA30CAN25PCDU CA30CAN25PCTAType SelectionCA30CAN/CAF.....Specifications (cont.) EN 60947-5-2* The IP69K test according to DIN 40050-9 for high-pressure, high-temperature wash-down applications. The sensor must not only be dust tight (IP6X), but also able to withstand high-pressure and steam cleaning. The sensor is exposed to high pressure water from a spray nozzle that is fed with 80°C water at 8’000– 10’000 KPa (80–100bar) and a flow rate of 14–6L/min. The nozzle is held 100 –150 mm from the sensor at angles of 0°, 30°, 60° and 90° for 30s each. The test device sits on a turntable that rotates with a speed of 5 times per minute. The sensor must not suffer any damaging effects from the high pressure water in appear-ance and function.90°60°30°0°The environments in which capacitive sensors are in s tall e d can often be un s ta-ble as regards to tempera-ture, humi d ity , object dis-tance and industrial (noise) inter f erence. Because of this, Carlo Ga v azzi offers as standard features in all TRIPLESHIELD TM capacitive sensors a user-friendly sen-sitivity adjustment instead of a fixed sensing range. Likewise, these sensors provide an extend e d sen-sing range to accommodatemechanically de m and i ng are-as and tem p erature stability to en s ure high immunity to elec t ro m agnetic interference (EMI) and a minimum need for adjusting sensitivity if the temperature varies.Note:Sensors are factory set (default) to nominal sensing range S n .Adjustment GuideCA30CAN/CAF.....Wiring DiagramDetection DiagramCA30CAN/CAF.....Detection Stability IndicationDimensionsInstallation HintsCapacitive sensors have a unique ability to detect al-most any material in li q uid or solid form. Capa c i t ive sen-sors are able to detect me-tallic as well as non-metallic ob j ects. How e ver, their tradi-tional use is for non-metallic materials such as:• Plastics Industry Resins, regrinds or mould-ed products.• Chemical IndustryCleansers, fertilizers, liq-uid soaps, corrosives andpe t r o c hemicals.• Wood IndustrySaw dust, paper products,door and window frames.• Ceramics & GlassI ndustryRaw materials, clay orfinish e d products, bottles.• Packaging IndustryPackage inspection for lev-el or contents, dry goods,fruits and vegetables, dairyproducts.Materials are detected due totheir dielectric constant. Thebigger the size of an object,the higher the density of ma-terial, the better or easier it isto detect the object.The nominal sensing di s tan-ce for a capacitive sensoris refe r r ed to a groundedme t al plate (ST37). For addi-tional information regardingdi e lec t ric ratings of materi-als please re f er to TechnicalInformation.Relief of cable strain Protection of the sensing face Switch mounted on mobile carrier To avoid interference from inductive voltage/current peaks, separate the prox. switch pow-er cables from any other power cables, e.g.motor, contactor or solenoid cablesNot correctCorrectThe cable should not be pulled A proximity switch should not serve asmechanical stopAny repetitive flexing of thecable should be avoided Delivery Contents•Capacitive switch: CA30CAN/CAF.......• User manual• 2 x M30 fingernuts• Screwdriver• Packaging: Cardboard boxAccessories• Connector type CONM14NF.. -series.• Mounting Brackets AMB30-S.. (straight),AMB30-A.. (angled)CA30CAN/CAF.....。

Endevco Model 8530C 膜压力传感器说明书

Endevco Model 8530C 膜压力传感器说明书

Piezoresistive pressure transducer Model 8530C -15, -50, -100Key features Model 8530C is a miniature, high sensitivity piezoresistive pressure transducer for measuring absolute pressure. The volumebehind the diaphragm is evacuated and glass sealed to provide an absolute pressure reference. Full scale output is 225 mV withhigh overload capability and high frequency response. It is available in ranges from 15 psia to 100 psia. 8530B is available forhigher pressure ranges.Endevco pressure transducers feature a four-arm strain gage bridge ion implanted into a unique sculptured silicon diaphragmfor maximum sensitivity and wideband frequency response. Self-contained hybrid temperature compensation provides stableperformance over the temperature range of 0°F to 200°F (-18°C to +93°C). Endevco transducers also feature excellent linearity(even to 3X range), high shock resistance, and high stability during temperature transients.8530C has been used successfully in many blast test situations. For this application, a protective coating is recommended toeliminate photoflash sensitivity and provide particle impingement protection. This coating does not degrade the superior dynamicresponse characteristics of the sensor.8530C is available with metric M5 mounting thread as 8530C-XXM5 on special order. See “other options.”Recommended electronics for signal conditioning and power supply are model 126 and 136 general purpose three channel conditioners, ultra low noise4430A conditioner, or the 4990A-X (Oasis) multi-channel rack mount system.• 15, 50 and 100 psia ranges• 225 mV full scale• Absolute referencePiezoresistive pressure transducerModel 8530C -15, -50, -100SpecificationsThe following performance specifications conform to ISA-RP-37.2 (1964) and are typical values, referenced at +75˚F (+24˚C) and 100 Hz, unless otherwise noted. Calibration data, traceable to National Institute of Standards and Technology (NIST), is supplied.Dynamic characteristics Units -15 -50 -100Range [1] psia 0–15 0–50 0–100Sensitivity [1] mV/psi typ (min) 15.0 (9.3) 4.5 (2.8) 2.25 (1.4)Combined: non-linearity,non repeatability, pressure hysteresis [2] % FSO RSS max 0.50 0.40 0.40Non-linearity, independent % FSO typ 0.15 0.1 0.1Non-repeatability % FSO typ 0.1 0.1 0.1Pressure hysteresis % FSO typ 0.1 0.1 0.1Zero measurand output [3] mV max ±20 ±20 ±20Zero shift after 3X range ±% 3X FSO max 0.2 0.2 0.2Thermal zero shiftFrom 0 to 200˚F (-18˚C to +93˚C) ±% FSO max 3 3 3Thermal sensitivity shiftFrom 0 to 200˚F (-18˚C to +93˚C) ±% max 3 3 3Resonance frequency Hz 180 000 320 000 500 000Non-linearity at 3X range % 3X FSO 1.0 1.0 1.0Zero shift with mounting torque15 lbf-in. (1.7 Nm) % FSO 0.2 0.5 0.5Thermal transient response per psi / ˚F 0.003 0.003 0.010ISA-S37.10, PARA. 6.7, procedure I [4] psi / ˚C 0.005 0.005 0.018Photoflash response [5] equiv psi 0.1 0.3 0.6Warm-up time [6] ms 1 1 1Acceleration sensitivity equiv. psi/g 0.00015 0.00015 0.00015Burst pressure (diaphragm) psia min 75 250 400Case pressure [7] psia min 1000 1000 1000ElectricalFull scale output 225 mV typical (140 mV minimum) at 10.0 VdcSupply voltage [8] 10.0 Vdc recommended, 15 Vdc maximumElectrical configuration Active four-arm piezoresistive bridgePolarity Positive output for increasing pressureResistanceInput 2600 ohms typical, 1700 ohm minimumOutput 1500 ohms typical, 2200 ohms maximumIsolation 100 megohms minimum at 50 Volts, leads to case, leads to shield, shield to caseNoise 5 microvolts rms typical, DC to 50 000 Hz; 50 microvolts rms maximum, DC to 50 000 HzMechanicalCase, material Stainless steel (17-4 PH CRES)Cable, integral Four conductor No. 32 AWG Teflon insulated leads, braided shield, silicone jacket, 30 ±6 in (760 ±150 mm) Dead volume port (+) 0.0003 cubic inches (0.005 cc)Mounting/torque 10-32 UNF-2A threaded case 0.438 inch (11.12 mm) long / 15 ±5 lbf-in (1.7 ±0.6 Nm)Weight 2.3 grams (cable weighs 9 grams/meter)EnvironmentalMedia [9] Internal seals are epoxy compatible with clean dry gas media. Media is exposed to CRES, ceramic,silicon, Parylene C, epoxy, silicone rubber, and the O-Ring. For use in water or corrosive media, contactthe factory for modifications and installation precautions which may be taken to extend service life Temperature [10] -65˚F to +250˚F (-54˚C to +121˚C)Vibration 1000 g pkAcceleration 1000 gShock 20 000 g, 100 microsecond haversine pulseHumidity Isolation resistance greater than 100 megohms at 50 V when tested per MIL-STD-202E, method 103B, test condition Calibration dataData supplied for all parameters in Certified Performance section. Optional calibrations available for all parameters in Typical Performance sectionPiezoresistive pressure transducer Model 8530C -15, -50, -100ContactENDEVCO T el: +1 (866) ENDEVCO [+1 (866) 363-3826]AccessoriesNotes1. 1 psi = 6.895 kPa = 0.069 bar .2. FSO (Full Scale Output) is defined as transducer output change from 0 psia to + full scale pressure.3. Zero Measurand Output (ZMO) is the transducer output with 0 psia applied.4.Significantly higher thermal transient errors occur if the excitation voltage exceeds 10 Vdc. For sensitive phase change studies, many users reduce the excitation to 5 Vdc or even 1 Vdc.5. Per ISA-S37.10, Para.6.7, Proc. II. The metal screen partially shields the silicon diaphragm from incidentradiation. Accordingly, light incident at acute angles to the screen generally increases the error by a factor of 2 or 3.6. Warm-up time is defined as elapsed time from excitation voltage “turn on” until the transducer output is within ±1% of reading accuracy.7. Case pressure identifies media containment pressure in the event of diaphragm rupture.8. For best results when using excitation voltages other than 10.0 Vdc, it is recommended that the transducer be calibrated at the desired excitation during manufacture. Otherwise larger thermal errors may occur, especially at voltages above 10 Vdc.9. O-ring, EHR93 Parker 5-125, compound V747-75 (Viton ®) is supplied unless otherwise specified on purchase order . Fluorosilicone O-ring, EHR96 Parker material L677-70, for leak tight operation below 0°F is available on special order .10. Maintain high levels of precision and accuracy using Endevco’s factory calibration services. Call Endevco’s inside sales force at 866-ENDEVCO for recommended intervals, pricing and turn-around time for these services as well as for quotations on our standard products.11. NOTE: Tighter specifications are available on special order .Model definitionOther optionsM1 “A” screen, black grease - ITAR M2 “B” screen, black grease - ITAR M5 Metric threadM37 Integral connector M58 “B” screen M57 No screen, gel M59 No screen8530C - XXX - YYY - EExcitation voltage (if no voltage is specified the default is 10 Vdc)A=2 Vdc, B=2.5 Vdc, C=3.3 Vdc, D=5 Vdc, E=7, F=7.5Cable length in inches (ie 8530C-100-200 has a length of 200 inches) If no dash number is specified the default is 30 inches. For lengths ≤ 10 ft specify 1 ft increments (12”, 24”...120”)For lengths ≤ 10 ft specify 5 ft increments (180”, 240”...etc)Pressure range (psia)-15, -50, -100Basic model number。

三线压力传感器原理

三线压力传感器原理

三线压力传感器原理三线压力传感器是一种常见的压力测量设备,其原理是通过检测应变来实现对压力变化的测量。

它包括三个主要部分:测量元件、信号处理电路和输出端。

测量元件是三线压力传感器的核心部分,它通常采用金属应变片(例如硅片)制成。

金属应变片在受到外力或压力作用时会发生微小的变形,这个变形会引起应变片上的应变变化。

应变片上通常有一条或多条电阻应变计,当应变片发生应变时,电阻应变计的电阻值也会发生相应的变化。

信号处理电路是三线压力传感器的另一个重要组成部分,主要用于测量元件输出的阻值变化并将其转换为电压信号。

信号处理电路通常由一个电桥和一个放大器组成。

在信号处理电路中,电桥是用来检测阻值变化的,它由测压电阻和参考电阻组成。

当测压电阻的阻值变化时,电桥会检测到不平衡信号,并将其输出。

输出端是三线压力传感器向外部输出测量结果的部分,通常使用电压或电流信号来表示压力的大小。

输出端的类型可以根据实际需求选择,例如模拟输出或数字输出。

当信号处理电路检测到电桥输出的不平衡信号后,会将其放大并转换为相应的电压或电流信号,从而表示压力的测量结果。

三线压力传感器的原理基于片上应变计的变化来实现对压力变化的测量。

应变计是一种能够随应变变化而改变其电阻值的传感器,它在金属应变片上粘贴,并与其一起被受力。

当受到压力作用时,金属应变片会发生变形,进而导致应变计的阻值发生变化。

这个变化的大小与压力的大小成正比。

在三线压力传感器中,用于测量片上应变计电阻变化的电桥是非常重要的。

电桥通常由四个电阻组成,其中一个电阻是参考电阻,用来提供电桥的基准电阻值。

另外三个电阻是测量电阻,它们与应变计并联。

当应变计的阻值发生变化时,电桥会检测到不平衡信号。

在信号处理电路中,不平衡的电桥信号通常被放大器放大以增强其信号强度。

放大器还可以进行零点调校和增益校正,以确保输出信号的准确度和稳定性。

最后,放大后的信号根据实际需求可以通过滤波器、模数转换器等进一步处理,然后输出到外部设备或系统进行进一步的分析和控制。

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