几种常用应变测试方法的比较

通过对圆钢进行拉伸试验,采用电阻式应变片、振弦传感器、数显千分表和引伸计四种常用应变测量仪器对试件应变同时进行采集,通过对测试结果与理论值的比较,总结分析了它们的工作特点以及适用范围,以期为测量方法的合理选择奠定基础。

Comparison of several common strain test methods

Through tensile test on round steel,the test sample strain was collected simultaneously with resistance strain gauge,vibrating string end instrument,digimatic micrometer gauge and extensometer.Through test result and theoretical value comparison,their work characteristics and application scope were generalized and analyzed so as to lay a basis for proper choice of measurement method.