电子发烧友App

硬声App

0
  • 聊天消息
  • 系统消息
  • 评论与回复
登录后你可以
  • 下载海量资料
  • 学习在线课程
  • 观看技术视频
  • 写文章/发帖/加入社区
会员中心
创作中心

完善资料让更多小伙伴认识你,还能领取20积分哦,立即完善>

3天内不再提示
创作
电子发烧友网>电子资料下载>类型>参考设计>CN-0301软件用户指南

CN-0301软件用户指南

2021-03-23 | pdf | 1.08MB | 次下载 | 3积分

资料介绍

This version (11 Feb 2021 16:20) was approved by Ioana Chelaru.The Previously approved version (10 Feb 2021 14:50) is available.Diff

CN-0301 Software User Guide

Overview

CN-0301 is a linear variable differential transformer (LVDT) signal conditioning circuit. The system converts the output of the LVDT sensor to a unipolar DC voltage and drives the inputs of a successive approximation analog-to-digital converter (ADC).

This circuit uses a single chip solution that drives the excitation signal of the primary side of the LVDT and converts the secondary side. The complete system uses a 12-bit ADC resulting in a dynamic range of 82dB at a standard LVDT bandwidth of 250Hz. (The term bandwidth used in this case is referring to a sinusoidally varying mechanical position and can be easily configured to meet wider bandwidth applications by configuring a few external passive components.)

The signal conditioning circuitry of the system consumes only 15mA of current from the ±15V supply and 3mA from the +5V supply making this configuration suitable for industrial precision position and gauging applications such as flight control surface position feedback.

This circuit note discusses the design steps needed to optimize the circuit shown in Figure 1 for a specific bandwidth including noise analysis and component selection considerations.

This user guide will discuss how to use the evaluation software to collect data from the EVAL-CN0301-SDPZ Evaluation Board (CN-0301 Board)

Required Equipment

  • EVAL-SDP-CB1Z Controller Board (SDP-B Board)
  • EVAL-CN0301-SDPZ Evaluation Board (CN-0301 Board)
  • EVAL-CFTL-6V-PWRZ (+6V Power Supply) or equivalent
  • EVAL-CFTL-LVDT Linear Variable Differential Transformer (Measurement Specialties, Inc. E-100 Economy Series LVDT)
    • (supplied with provided CD in kit)
  • PC with the following Minimum Requirements
    • Windows XP Service Pack 2 (32-bit)
    • USB type A Port
    • Processor rated at 1GHz or faster
    • 512 MB RAM and 500 MB available hard disk space
  • USB type A to USB type mini-B cable

General Setup




Installing the Software

  1. Extract the file CN0301_Evaluation_Software.zip and open the file setup.exe.

    NOTE: It is recommended that you install the CN-0301 Evaluation Software to the default directory path C:/Program Files/Analog Devices/CN0301/ and all National Instruments products to C:/Program Files/National Instruments/






  2. Click Next to view the installation review page



  3. Click Next to start the installation



  4. Upon completion of the installation of the CN-0301 Evaluation Software, the installer for the ADI SDP Drivers will execute.

    NOTE: It is recommended that you close all other applications before clicking “Next”. This will make it possible to update relevant system files without having to reboot your computer.





  5. Press “Next” to set the installation location for the SDP Drivers.

    It is recommended that you install the drivers to the default directory path
    C:/Program Files/Analog Devices/SDP/Drivers



  6. Press “Next” to install the SDP Drivers and complete the installation of all software. Click “Finish” when done.


Connecting the Hardware

  1. Connect the EVAL-CFTL-LVDT (LVDT) to J1 of the EVAL-CN0301-SDPZ (CN-0301 Board) as depicted below.

    NOTE: If a different LVDT is used other than the E-100 LVDT from Measurement Specialties, Inc the wiring schematic will be different!







    nolink



  2. Connect J8 of the EVAL-CN0301-SDPZ (CN-0301 Board) to CON A of the EVAL-SDP-CB1Z (SDP-B Board)



  3. Connect the EVAL-CFTL-6V-PWRZ (+6V DC Power Supply) to the Barrel Jack at J4 or the Screw Terminal at J3 on the EVAL-CN0301-SDPZ (CN-0301 Board)



  4. Connect the USB cable to J1 of the EVAL-SDP-CB1Z (SDP-B Board)




Using the Evaluation Software

Software Control and Indicator Descriptions


  1. Connect/Reconnect Button
    • When this button is pressed, the SDP-B Board makes a USB connection to the CN-0301 Board. A connection to the SDP-B Board must be made to use the software.
  2. Run Button
    • When this button is pressed, the SDP-B Board will collect conversion data and present the acquisitions in the chart.
  3. Stop Button
    • When this button is pressed, the software stop collecting data from the CN-0301 Board
  4. Save Data Button
    • When this button is pressed, the software will save the data collected to a tab delimited ASCII spreadsheet file.
  5. Clear Data Button
    • When this button is pressed, the software will clear all data collected from the chart history.
  6. Control Tabs
    • Acquire Data - Clicking this tab brings the data collection chart to the front.
    • Configure System - Clicking this tab bring the system configuration settings to the front.
  7. Channel 1 Numerical Indicator
    • This indicator displays the current position from null on Channel 1.
  8. Channel 2 Numerical Indicator
    • This indicator displays the current position from null on Channel 2.
  9. Channel Enable Checkboxes
    • This control determines which channels display in the chart.
  10. Select Units Radio Buttons
    • This control determines the Y-Axis units of the data displayed in the chart.
  11. ADC Conversion Out of Range LED Indicator
    • This indicator determines whether a conversion result is outside the allowable range of conversion results.
  12. Chart Controls
    • These controls allow the user to zoom-in, zoom-out, and pan through the data collected.
  13. System Status String Indicator
    • This indicator displays a message to the user detailing the current state of the software.
  14. System Status LED Indicator
    • This indicator displays the current state of the software in the form of an LED. There are three status LED colors.
      Inactive
      Busy
      Error
  15. ADC Conversion Thresholds Panel
    • This panel allows the registers in the AD7992 analog-to-digital converter to be written to and read back.
  16. LVDT Full Scale Range Panel
    • This panel configures the maximum stroke range of the LVDT. The default configuration is 0.2 inches.

  1. Follow the instructions to properly install the software and connect the hardware as described in the previous sections.
  2. Open the file named CN0301.exe in the installation directory.

    NOTE: If the software was installed to the default location it will be found at
    C:/Program Files/Analog Devices/CN0301/CN0301.exe







  3. Click the Connect/Reconnect Button. A window with a progress bar will load.



  4. Upon success, the System Status String Indicator will display SDP Board Ready to Acquire Data

Capturing a Data

  1. Establish a USB Connection Link.
  2. Click the Run Button
  3. Click the Stop Button when acquisition is complete.

Saving Data to a Spreadsheet File

  1. Establish a USB Connection Link.
  2. Capture Data.
  3. Click the Save Data Button.
  4. Configure the format of the spreadsheet data.
    • Select either Inches or ADC Codes.
    • Select either Channel 1, Channel 2, or select both channels.



  5. Click the OK Button.
  6. Browse to the directory location where the spreadsheet file is to be saved.
  7. Name the file.
  8. Click the OK Button.


The software saves the spreadsheet file as ASCII text with columns separated by tabs.

Setting ADC Conversion Thresholds

  1. Establish a USB Connection Link.
  2. Click the “Configure System” Control Tab.
  3. Change the hexadecimal value of the register to be written in the ADC Conversion Thresholds Panel.
  4. Press the Set Thresholds Button.


Information regarding the internal register structure can be found in the AD7992 Datasheet.

Reading ADC Conversion Thresholds

  1. Establish a USB Connection Link.
  2. Click the “Configure System” Control Tab.
  3. Press the Read Thresholds Button.


The threshold contents will be displayed in the ADC Conversion Thresholds Panel.

Setting the Full Scale LVDT Range

  1. Click the “Configure System” Control Tab.
  2. Change the value of the channel of interest in the LVDT Full Scale Range Panel.
    • The default value is 0.20 inches for both channels.

Downloads

评论

查看更多

下载排行

本周

  1. 1电子电路原理第七版PDF电子教材免费下载
  2. 0.00 MB  |  1491次下载  |  免费
  3. 2单片机典型实例介绍
  4. 18.19 MB  |  95次下载  |  1 积分
  5. 3S7-200PLC编程实例详细资料
  6. 1.17 MB  |  27次下载  |  1 积分
  7. 4笔记本电脑主板的元件识别和讲解说明
  8. 4.28 MB  |  18次下载  |  4 积分
  9. 5开关电源原理及各功能电路详解
  10. 0.38 MB  |  11次下载  |  免费
  11. 6100W短波放大电路图
  12. 0.05 MB  |  4次下载  |  3 积分
  13. 7基于单片机和 SG3525的程控开关电源设计
  14. 0.23 MB  |  4次下载  |  免费
  15. 8基于AT89C2051/4051单片机编程器的实验
  16. 0.11 MB  |  4次下载  |  免费

本月

  1. 1OrCAD10.5下载OrCAD10.5中文版软件
  2. 0.00 MB  |  234313次下载  |  免费
  3. 2PADS 9.0 2009最新版 -下载
  4. 0.00 MB  |  66304次下载  |  免费
  5. 3protel99下载protel99软件下载(中文版)
  6. 0.00 MB  |  51209次下载  |  免费
  7. 4LabView 8.0 专业版下载 (3CD完整版)
  8. 0.00 MB  |  51043次下载  |  免费
  9. 5555集成电路应用800例(新编版)
  10. 0.00 MB  |  33562次下载  |  免费
  11. 6接口电路图大全
  12. 未知  |  30320次下载  |  免费
  13. 7Multisim 10下载Multisim 10 中文版
  14. 0.00 MB  |  28588次下载  |  免费
  15. 8开关电源设计实例指南
  16. 未知  |  21539次下载  |  免费

总榜

  1. 1matlab软件下载入口
  2. 未知  |  935053次下载  |  免费
  3. 2protel99se软件下载(可英文版转中文版)
  4. 78.1 MB  |  537793次下载  |  免费
  5. 3MATLAB 7.1 下载 (含软件介绍)
  6. 未知  |  420026次下载  |  免费
  7. 4OrCAD10.5下载OrCAD10.5中文版软件
  8. 0.00 MB  |  234313次下载  |  免费
  9. 5Altium DXP2002下载入口
  10. 未知  |  233046次下载  |  免费
  11. 6电路仿真软件multisim 10.0免费下载
  12. 340992  |  191183次下载  |  免费
  13. 7十天学会AVR单片机与C语言视频教程 下载
  14. 158M  |  183277次下载  |  免费
  15. 8proe5.0野火版下载(中文版免费下载)
  16. 未知  |  138039次下载  |  免费