理化检验-物理分册2025，Vol.61Issue(4)：37-42,6.DOI:10.11973/lhjy-wl250065
双引伸计式和应变计式同轴度测试仪的测量不确定度
Measurement uncertainty of dual extensometer and strain gauge coaxiality testers
尹思博 1李政 1冯晟顺1
作者信息
- 1. 上海市质量监督检验技术研究院,上海 201114
- 折叠
摘要
Abstract
The testing principles of dual extensometer and strain gauge coaxiality testers were analyzed,and the sources of measurement uncertainty for the two testing machines were analyzed.The degree of influence of different factors on the measurement uncertainty of the two testing machines were study.The results show that when using a dual extensometer coaxiality tester,more attention should be paid to factors such as the accuracy of the extensometer,the alignment of the fixture and the uniformity of the material.When using a strain gauge coaxiality tester,additional factors such as the position of the multi section patch,linear errors in the data acquisition system,and positioning deviations during each reinstallation should be considered.The dual extensometer coaxiality tester was suitable for routine coaxiality calibration of testing machines.The strain gauge coaxiality tester was suitable for coaxiality testing that required high accuracy and comprehensive analysis.关键词
双引伸计式同轴度测试仪/应变计式同轴度测试仪/校准装置/测量不确定度/弯曲百分数Key words
dual extensometer coaxiality tester/strain gauge coaxiality tester/calibration device/measurement uncertainty/bending percentage引用本文复制引用
尹思博,李政,冯晟顺..双引伸计式和应变计式同轴度测试仪的测量不确定度[J].理化检验-物理分册,2025,61(4):37-42,6.
