Study on method for time-grating high-speed measurement based on phase-shifting of resistance chains

SUO Long-bo; CHEN Xi-hou; GOU Li; ZHANG Tian-heng; CAO Huan

doi:10.13873/J.1000-9787(2015)09-0051-04

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Study on method for time-grating high-speed measurement based on phase-shifting of resistance chains

更新时间：2025-09-11

- Study on method for time-grating high-speed measurement based on phase-shifting of resistance chains
- Vol. 34, Issue 9, Pages: 51-54+57(2015)
- 作者机构：
  
  重庆理工大学机械检测技术与装备教育部工程研究中心时栅传感及先进检测技术重庆市重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2015)09-0051-04
  CLC： TP212
- Published：2015
- 稿件说明：
移动端阅览
[1]索龙博,陈锡侯,苟李,张天恒,曹焕.基于电阻链移相的时栅高速测量方法研究[J].传感器与微系统,2015,34(09):51-54+57.

SUO Long-bo, CHEN Xi-hou, GOU Li, et al. Study on method for time-grating high-speed measurement based on phase-shifting of resistance chains[J]. 2015, 34(9): 51-54+57.
[1]索龙博,陈锡侯,苟李,张天恒,曹焕.基于电阻链移相的时栅高速测量方法研究[J].传感器与微系统,2015,34(09):51-54+57. DOI： 10.13873/J.1000-9787(2015)09-0051-04.

SUO Long-bo, CHEN Xi-hou, GOU Li, et al. Study on method for time-grating high-speed measurement based on phase-shifting of resistance chains[J]. 2015, 34(9): 51-54+57. DOI： 10.13873/J.1000-9787(2015)09-0051-04.

摘要

针对时栅位移传感器因频率响应慢影响测量速率的问题

提出了一种电阻链移相结合数据处理的方法。利用电阻链对时栅输出信号进行移相处理

采用多路模拟选择器和整形输出电路对移相后的信号分时输出

运用可编程片上系统（SOPC）技术进行数据处理和误差补偿。实验结果表明:采用该方法采样频率由原来的400 Hz提高到12.8 k Hz

大幅度提高了现阶段时栅位移传感器的频率响应

使传感器实现了高速实时测量。同时能够有效地降低了随机误差

对极内的误差峰—峰值由1.5″降低为0.8″

测量精度提高了近1倍。

Abstract

Aiming at the problem that measuring rate of time-grating displacement sensor is affected due to slow frequency response

a method combining data processing and phase-shifting of resistance chains is proposed. The output signal of time-grating is phase-shifting processed by resistance chains and timeshare output by multiplexers and shaping output circuit

and the SOPC technology is used for data processing and error compensation.Experimental results show that the original sampling frequency of 400 Hz can be improved up to 1. 28 k Hz

which can substantially increase the frequency response of the time-grating displacement sensor

and high-speed realtime measurement is achieved. Meanwhile the random error is effectively reduced

the peak-peak value of error is decreased from 1. 5″ to 0. 8″ within antipode

and the measurement precision is nearly double improved.

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references

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传感器[M]. 机械工业出版社 , 强锡富主编, 2001

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