摘要
针对精密机构综合性能测试仪中的角度参量在高低温环境下无法溯源的问题,研制一种基于对比检测法的高低温环境角度标准装置,该装置通过主轴将高低温环境下的角度参量传递至常温环境,以实现高低温环境下被测角度编码器的校准。使用COMSOL仿真对高低温环境角度标准装置进行机械部分的适应性设计与部件选型;对该装置进行不确定度评定,其扩展不确定度为9.19″(k=2);使用该装置对被校件进行功能测试,实验准确度为97.93″,符合被校件自身准确度指标98″,测试结果合格。结果表明,该装置可为综合性能测试仪提供高低温环境下角度编码器的校准,实现高低温环境角度参量的溯源,保证高低温环境下角度测量的准确性。
Aiming at the problem that the angle parameters in the comprehensive performance tester of precision mechanisms cannot be traced in high and low temperature environments,a high and low temperature environment angle standard device based on the contrast detection method was developed.This device transmits the angle parameters in high and low temperature environments through the spindle To a normal temperature environment to achieve the calibration of the measured angle encoder in a high and low temperature environment.Using COMSOL simulation,the mechanical part of the standard device for high and low temperature environment angles was designed and selected;the uncertainty of the device was evaluated,and the expanded uncertainty was 9.19″(k=2);The calibrated part has undergone a functional test,and the experimental result is 97.93″,which meets the accuracy index of the calibrated part 98″,and the test result is qualified.The results show that the device can provide the calibration of the angle encoder in the high and low temperature environment for the comprehensive performance tester,realize the traceability of the angle parameters in the high and low temperature environment,and ensure the accuracy of the angle measurement in the high and low temperature environment.
作者
郑莹洁
胡佳成
丁鸿
李东升
朱跃
乔凤斌
ZHENG Yingjie;HU Jiacheng;DING Hong;LI Dongsheng;ZHU Yue;QIAO Fengbin(China Jiliang University,Hangzhou 310018,China;Shanghai Aerospace Equipments Manufacture Co.,Ltd.,Shanghai 200245,China)
出处
《中国测试》
CAS
北大核心
2023年第1期131-136,168,共7页
China Measurement & Test
基金
国家重点研发计划项目(2017YFF0108000)。
关键词
计量学
角度标准装置
对比检测法
高低温环境
不确定度评定
metrology
angle standard device
comparative detection method
high and low temperature environment
uncertainty evaluation
