摘要
从引伸计的结构、标距和测量范围、标称量程与输出灵敏度、示值的绝对误差和应变误差等几个方面论述电子万能试验机引伸计的正确配置。从材料力学性能测试所需的变形量、引伸计系统实际检定结果论述电子万能试验机有效变形测量的确定,从而指出了试验机行业内普遍存在的一个认识误区。
A correct configuration of extensometer in electronic universal testing machine is discussed as regards of extensometer structure, gauge length and measuring range, nominal measuring scale, output sensibility, absolute error of indicated value as well as strain error in the paper. The measurement of effective deformation in electronic universal testing machine is also described on the basis of the deformation magnitude necessary to mechanical properties tests of material and the practical measuring results obtained by the extensometer as to indicate a ubiquitous cognitive mistake in testing machines industry.
出处
《试验技术与试验机》
2006年第3期25-30,共6页
Test Technology and Testing Machine
关键词
引伸计
变形测量范围
电子万能试验机
extensometer
measuring range of deformation,
electronic universal testingMachine
