不同安装模态对嵌入式时栅测量误差的影响  

Effect of different mounting modes on embedded time grating measuring errors

作　　者：孙世政[1] 周清松 韩宇 何泽银[1] SUN Shi-zheng;ZHOU Qing-song;HAN Yu;HE Ze-yin(School of Mechatronics and Vehicle Engineering, Chongqing Jiaotong University, Chongqing 400074, China)

机构地区：[1]重庆交通大学机电与车辆工程学院,重庆400074

出　　处：《光学精密工程》2020年第10期2290-2300,共11页Optics and Precision Engineering

基　　金：中国博士后科学基金面上项目资助(No.2018M633626XB);重庆市重点实验室开放课题基金资助项目(No.CKLURTSIC-RFKT-201806);交通工程应用机器人重庆市工程实验室开放课题(No.CELTEAR-KFKT-201805)。

摘　　要：为提高嵌入式时栅传感器测量精度,对不同安装模态下测量精度进行了表征。从嵌入式时栅传感器传感机理出发,分析了安装气隙变化、径向安装偏差和轴向安装偏差对传感器测量精度的影响规律,建立了不同安装模态的误差模型。对传感器不同安装模态进行了模拟仿真与实验验证。仿真与实验结果表明不同安装模态均会影响传感器测量精度,其中径向安装对传感器测量误差影响最大,气隙间距变化对传感器测量误差影响其次,轴向安装对传感器测量误差影响最小;三种安装模态对测量误差的影响均体现在对一次和二次误差的影响上;在气隙间距为0.2 mm无径向与轴向安装偏差时嵌入式时栅测量误差峰峰值为100.8″。本研究对指导嵌入式时栅传感器安装,降低安装误差,提升测量精度具有重要的理论与现实意义。In this study,the measurement accuracy of an embedded time-grating sensor was characterized for different mounting modes.Based on the sensing mechanism of the embedded time-grating sensor,the effects of variations in the mounting air gap,radial mounting,and axial mounting on the measurement accuracy of the sensor were analyzed,and the sensing measurement model was established for different mounting modes.Simulation and experimental verifications of the mounting modes of the sensor were performed.The simulation and experimental results showed that different mounting modes influenced the measurement accuracy of the sensor,with radial mounting having the most significant effect on the measurement error of the sensor,followed by air gap spacing and axial mounting.This study has significant theoretical and practical implications in guiding the installation,minimizing the installation errors,and improving the measurement accuracy of embedded time-grating sensors.

关 键 词：嵌入式时栅传感器 安装模态 安装误差 测量精度 

分 类 号：TH712[机械工程—测试计量技术及仪器]