华中科技大学学报（自然科学版）2016，Vol.44Issue(6)：40-45,6.DOI:10.13245/j.hust.160608
寄生式时栅角位移传感器误差源分析与验证
Error source analysis and verification of parasitic time grating angular displacement sensor
摘要
Abstract
In order to improve the accuracy of the parasitic time grating angular displacement sensor,to analyze the mechanism and the changing principle of the error sources,and to ensure its primary and secondary influence factors,the sensor structure was analyzed and the traveling equation was de rived in this paper.The main error sources of the sensor were obtained,which include time and space orthogonal error of two phase excitation signal,amplitude error of standing wave signal,error caused by residual voltage at zero point of coil and so on.The specific harmonic frequency of each error component was theoretically derived.The specific causes of the different harmonic error components were determined and verified by experiments.The verification results show that the error caused by residual voltage at zero point of coil is the main error source of the sensor,and it has the most significant influence on the sensor accuracy.Time and space orthogonal error of two phase excitation signal and amplitude error of standing wave signal are the secondary sources.关键词
角位移传感器/寄生式时栅/误差源/谐波分析/主次影响因素Key words
angular displacement sensor/parasitic time grating/error source/harmonic analysis/primary and secondary influence factors分类
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杨洪涛,章刘沙,费业泰,彭东林..寄生式时栅角位移传感器误差源分析与验证[J].华中科技大学学报（自然科学版）,2016,44(6):40-45,6.基金项目
国家自然科学基金资助项目(51107001) （51107001）
重庆理工大学时栅传感及先进检测技术重庆市重点实验室开放课题资助项目(KFKT2013001). （KFKT2013001）
