一前言本文试图对目前广泛使用于高温拉伸、蠕变试验中的机械式引伸计进行结构分析,找出影响引伸计工作的各因素,并尽量进行一些定量的分析,以便为设计,使用及制定有关标准提供一些依据。作为一台高温试验机,测量试样在高温下的应变有着十分重要意义,这一点是大家都非 Preface This article attempts to structural analysis of the mechanical extensometer widely used in high temperature tensile and creep tests to find out the factors that affect the work of extensometer, and try to do some quantitative analysis, in order to design, use and Provide some basis for the development of standards. As a high temperature testing machine, it is very important to measure the strain of the sample under high temperature.