在线观看www成人影院-在线观看www日本免费网站-在线观看www视频-在线观看操-欧美18在线-欧美1级

電子發燒友App

硬聲App

0
  • 聊天消息
  • 系統消息
  • 評論與回復
登錄后你可以
  • 下載海量資料
  • 學習在線課程
  • 觀看技術視頻
  • 寫文章/發帖/加入社區
會員中心
創作中心

完善資料讓更多小伙伴認識你,還能領取20積分哦,立即完善>

3天內不再提示
電子發燒友網>電子資料下載>類型>參考設計>CN0295:靈活的4 mA至20 mA電壓或電流驅動壓力傳感器變送器

CN0295:靈活的4 mA至20 mA電壓或電流驅動壓力傳感器變送器

2021-03-23 | pdf | 311.32KB | 次下載 | 2積分

資料介紹

This version (20 Jan 2021 02:00) was approved by erbe reyta.The Previously approved version (31 Jul 2017 02:10) is available.Diff

CN0295: Flexible, 4 mA-to-20 mA Pressure Sensor Transmitter with Voltage or Current Drive

OVERVIEW

The circuit is a flexible current transmitter that converts the differential voltage output from a pressure sensor to a 4 mA-to-20 mA current output. The circuit is optimized for a wide variety of bridge-based voltage or current driven pressure sensors, utilizes only five active devices, and has a total unadjusted error of less than 1%. The power supply voltage can range from 7 V to 36 V depending on the component and sensor driver configuration. The input of the circuit is protected for ESD and voltages beyond the supply rail, making it ideal for industrial applications.


DEMO REQUIREMENTS

  • EVAL-CN0295-EB1Z circuit evaluation board
  • +7V to +24V power supply or equivalent power supply
  • Precision power supply
  • Agilent 3458A or equivalent Current meter
  • Differential Pressure sensor or Equivalent Dual channel DC Signal Source

HARDWARE SETUP

Power Supply

  • From +7V to +24V supply can be used to J2 for proper operation of the evaluation board
In order for the circuit to operate properly, the supply voltage, must be greater than 7 V in order to provide sufficient headroom.

Input Signal

Using Actual Sensor

  1. A differential output bridge type sensor should be attached to a 4 channel screw terminal block (J3) labeled with SUPPLYSNS on the PCB.
  2. A differential sensor gauge like from Honeywell or from NXP can be used for evaluation.
  • Vsense is where the analog voltage output of the sensor is being taken for measurement. Pin polarity should be take into account.
  • V/Iforce is the sensor excitation or is being supplied either from current or voltage source.
Pin polarity for Vsense and for V/Iforce should be take into consideration

Using Simulated input sensor

The following configuration can be used to simulate the sensor characteristic for evaluation purposes.

  1. A dual power supply can be used to power up the board from Vout1 and to generate a common-mode voltage of 2.5 V from Vout2 shown in the block diagram for test setup.
  2. A precision voltage source generates the 0 to 100 mV differential input voltage at the in-amp input, which then simulates the sensor output shown in the block diagram for test setup.
  3. 3 kΩ at R_bridge simulates the bridge type sensor impedance.

For lower than 5 kΩ bridge resistance, the drive voltage can be decreased down to 5 V using a buffer configuration by removing resistor R6.

Sensor Drive

The circuit can be switched to the current or voltage drive configuration by moving S1 to the position labeled on the PCB.

Voltage Drive Configuration

  • In the voltage drive mode with VDRIVE = 10 V, the supply voltage VLOOP or system supply must be greater than 10.2 V

Current Drive Configuration

  • In the current drive mode, the supply voltage VLOOP or system supply must be greater than 11.2 V in order to maintain sufficient headroom.
Current drive configuration can be used for four-wire ohm circuit configuration where in the main advantage of this configuration is that the voltage is measured directly across the load cell, neglecting the load effect of the lead wires for long distance measurements.
Both for voltage and current drive mode, the minimum loop supply voltage is dependent on the configuration of the drive circuit for the bridge.

Output Measurements

The output of the system can be measured in two ways, either through direct output current measurement or voltage output through the series resistor.

* Voltage Measurement

  • Voltage output measurement is done across a series 250ohms resistor though screw type terminal block (P1).
It is important that the 2-pin male header (J1) be populated first before doing a voltage measurement across the terminal block (P1)

* Current Measurement

  • Current output measurement is done by connecting the positive terminal of the current meter at one pin of the male header shunt terminal (J1) and the negative terminal of the meter connected to the other pin of the same male header shunt terminal.
The system has an onboard resistor load (R14) of 500ohms that can be de-soldered to replace with a desired resistor load value

SCHEMATICS, PCB LAYOUT, BILL OF MATERIALS

End of Document

下載該資料的人也在下載 下載該資料的人還在閱讀
更多 >

評論

查看更多

下載排行

本周

  1. 1電子電路原理第七版PDF電子教材免費下載
  2. 0.00 MB  |  1491次下載  |  免費
  3. 2單片機典型實例介紹
  4. 18.19 MB  |  95次下載  |  1 積分
  5. 3S7-200PLC編程實例詳細資料
  6. 1.17 MB  |  27次下載  |  1 積分
  7. 4筆記本電腦主板的元件識別和講解說明
  8. 4.28 MB  |  18次下載  |  4 積分
  9. 5開關電源原理及各功能電路詳解
  10. 0.38 MB  |  11次下載  |  免費
  11. 6100W短波放大電路圖
  12. 0.05 MB  |  4次下載  |  3 積分
  13. 7基于單片機和 SG3525的程控開關電源設計
  14. 0.23 MB  |  4次下載  |  免費
  15. 8基于AT89C2051/4051單片機編程器的實驗
  16. 0.11 MB  |  4次下載  |  免費

本月

  1. 1OrCAD10.5下載OrCAD10.5中文版軟件
  2. 0.00 MB  |  234313次下載  |  免費
  3. 2PADS 9.0 2009最新版 -下載
  4. 0.00 MB  |  66304次下載  |  免費
  5. 3protel99下載protel99軟件下載(中文版)
  6. 0.00 MB  |  51209次下載  |  免費
  7. 4LabView 8.0 專業版下載 (3CD完整版)
  8. 0.00 MB  |  51043次下載  |  免費
  9. 5555集成電路應用800例(新編版)
  10. 0.00 MB  |  33562次下載  |  免費
  11. 6接口電路圖大全
  12. 未知  |  30320次下載  |  免費
  13. 7Multisim 10下載Multisim 10 中文版
  14. 0.00 MB  |  28588次下載  |  免費
  15. 8開關電源設計實例指南
  16. 未知  |  21539次下載  |  免費

總榜

  1. 1matlab軟件下載入口
  2. 未知  |  935053次下載  |  免費
  3. 2protel99se軟件下載(可英文版轉中文版)
  4. 78.1 MB  |  537793次下載  |  免費
  5. 3MATLAB 7.1 下載 (含軟件介紹)
  6. 未知  |  420026次下載  |  免費
  7. 4OrCAD10.5下載OrCAD10.5中文版軟件
  8. 0.00 MB  |  234313次下載  |  免費
  9. 5Altium DXP2002下載入口
  10. 未知  |  233046次下載  |  免費
  11. 6電路仿真軟件multisim 10.0免費下載
  12. 340992  |  191183次下載  |  免費
  13. 7十天學會AVR單片機與C語言視頻教程 下載
  14. 158M  |  183277次下載  |  免費
  15. 8proe5.0野火版下載(中文版免費下載)
  16. 未知  |  138039次下載  |  免費
主站蜘蛛池模板: 202z国产高清日本在线播放 | 午夜网站免费版在线观看 | 在线视频亚洲 | 免费二级c片观看 | 欧美人与动欧交视频 | 免费免播放器在线视频观看 | 不卡一区二区在线观看 | 国产亚洲精品久久久久久午夜 | 怡红院亚洲怡红院首页 | 亚洲欧洲色 | 999久久精品国产 | 年轻护士女三级 | 欧美激情91 | 国产在线观看午夜不卡 | 国产女人伦码一区二区三区不卡 | 午夜免费体验 | 精品视频一区二区三区四区五区 | 8050网午夜一级毛片免费不卡 | 欧美黑人换爱交换乱理伦片 | 天天摸天天爽天天澡视频 | 婷婷在线观看香蕉五月天 | 成人亚洲欧美在线电影www色 | 午夜视频在线观看免费高清 | 综合天堂| 久久久噜噜噜www成人网 | 午夜影院网页 | 国产哺乳期奶水avav | 韩国成人毛片aaa黄 韩国床戏合集三小时hd中字 | 免费一级毛片不卡在线播放 | 欧美激情第一欧美在线 | 一级特黄aa毛片免费观看 | 在线观看网站黄 | 久久精品网站免费观看 | 久草福利在线播放 | 丁香六月激情婷婷 | 91日本在线观看亚洲精品 | 亚洲激情视频网 | 1024你懂的国产欧美日韩在 | 一区二区不卡在线观看 | 美国一级毛片不卡无毒 | 久久久久久国产精品免费免费 |