天津市计量监督检测科学研究院 天津 300192
TH711TN06
Tianjin Institute of Metrological Supervision and Testing, Tianjin 300192, China
引伸计是一种测定材料应变数据的测试仪器。本文简要叙述引伸计的组成，原理，优缺点以及检定方法。根据规程，检定引伸计的标准器是引伸计标定器。但由于引伸计的型式较多外加现场检定的限制，可以选择一些实验室现有检具搭建相当于引伸计标定器作用的标准器。本文简述了除引伸计标定器外，利用试验室现有的光栅检具和用量块配合大量程指示表或测微仪代替引伸计标定器来作为检具对引伸计进行检定的方式方法。并且叙述了对于检定不合格的引伸计进行判定，参数设置，机械结构和软件调修。最后提出非接触自动式是未来引伸计发展的方向。
Extensometer is a device to measure the strain. The paper is to introduce the constituent parts,theory, advantages and disadvantages and verification of extensometer. According to the verification regulation the main regulator of extensometer is calibrator of extensometers.But limited to the extensometer type and laboratory condition,we can use some other equipments to calibrate extensometers.The paper is to introduce the ways which can calibrate the extensometers except for using the calibrator of extensometers.We can use the grating dial indicator gauges or block and micrometers instead of extensometer calibrator. And it also mentions the extensometers estimating, parameter setting and repairing. At last, the paper proposes non-contact auto extensometer is the development direction in the future.
李凌梅,戴庆生,刘红光,陈洁,张欣.引伸计的简述和检修[J].国外电子测量技术,2017,36(6):117-120
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