Effect of installation error of parasitic time grating on sensor measuring accuracy

YANG Hong-tao; ZHANG Liu-sha; ZHOU Jiao; FEI Ye-tai; PENG Dong-lin

doi:10.3788/OPE.20162402.0319

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Effect of installation error of parasitic time grating on sensor measuring accuracy

更新时间：2020-08-13

- Effect of installation error of parasitic time grating on sensor measuring accuracy
- Optics and Precision Engineering Vol. 24, Issue 2, Pages: 319-326(2016)
- 作者机构：
  
  1. 合肥工业大学仪器科学与光电工程学院,安徽合肥,230009
  2. 安徽理工大学机械工程学院, 安徽淮南 232001
  3. 重庆理工大学电子信息与自动化学院重庆 400054
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20162402.0319
  CLC： TP212.12;TH712
- Received：19 August 2015，
  
  Revised：21 September 2015，
  
  Published：25 February 2016
- 稿件说明：
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杨洪涛, 章刘沙, 周姣等. 寄生式时栅安装误差对传感器测量精度的影响[J]. 光学精密工程, 2016,24(2): 319-326

YANG Hong-tao, ZHANG Liu-sha, ZHOU Jiao etc. Effect of installation error of parasitic time grating on sensor measuring accuracy[J]. Editorial Office of Optics and Precision Engineering, 2016,24(2): 319-326
杨洪涛, 章刘沙, 周姣等. 寄生式时栅安装误差对传感器测量精度的影响[J]. 光学精密工程, 2016,24(2): 319-326 DOI： 10.3788/OPE.20162402.0319.

YANG Hong-tao, ZHANG Liu-sha, ZHOU Jiao etc. Effect of installation error of parasitic time grating on sensor measuring accuracy[J]. Editorial Office of Optics and Precision Engineering, 2016,24(2): 319-326 DOI： 10.3788/OPE.20162402.0319.

摘要

为了提高寄生式时栅行波信号的质量和传感器的测角精度

研究了离散式测头安装误差对传感器测角精度的影响。介绍了寄生式时栅的结构组成和工作原理

建立了三维仿真模型

应用Ansoft Maxwell仿真软件对测头与转子不同间隙、测头的俯仰角和偏摆角大小变化对传感器测角精度的影响进行了仿真实验分析

同时应用84对级的寄生式时栅搭建实验平台进行了实际实验验证。仿真和实验结果显示:安装误差中的间隙、俯仰角、测头的偏摆角等因素变化对传感器测量精度均有影响。间隙变化对测量精度的影响具有规律

可通过建模进行修正。实验所用的84对级的寄生式时栅最佳安装间隙大小为0.2 mm。俯仰角、偏摆角的变化对测量精度的影响规律变化较复杂

故文中建立了相应的误差补偿模型。本文的研究结果可用于指导传感器的结构优化设计、测头的安装和误差精确补偿

进而提高传感器的测角精度。

Abstract

To improve the signal quality and angle measuring accuracy of a parasitic time grating sensor

the effect of installation errors of a discrete probe on the angle measuring accuracy of the sensor was researched.The structural components and working principle of parasitic time grating were introduced

and a 3D simulation model of parasitic time grating sensor was built. The Ansoft Maxwell simulation software was used to analyze the influences of different gap sizes between probe and rotor

the size changes of the pitch and yaw angles of the probe on the measurement accuracy of the sensor. Meanwhile

an experimental platform was built by using the 84-level parasitic time grating to verify the actual experiment. The simulation and actual experimental results show that the gap

the pitch angle and yaw angle of the probe in the installation errors all influence the accuracy of the sensor. The influence of gap variation on the measurement accuracy is regular and can be corrected by modeling. The optimal installation gap size of the researched 84-level parasitic time grating is 0.2 mm. Moreover

the modeling method of the pitch and swing angles affecting the accuracy of the sensors is built due to their complex changing principles. The acquired results can be used to research further on the structure optimization

precisely installation and error correction of the sensors and can improve the measurement accuracy of the sensor.

关键词

Keywords

references

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