标准圆管壁厚校准方法的探究  

Research on the Method of Calibration for the Standard Tube

作　　者：常淯舟 王涛 杨毅 曹梦成 CHANG Yuzhou;WANG Tao;YANG Yi;CAO Mengcheng

机构地区：[1]湖北省计量测试技术研究院

出　　处：《计量与测试技术》2024年第1期89-91,共3页Metrology & Measurement Technique

摘　　要：标准圆管作为超声波测厚仪校准的标准器,对超声波测厚仪的曲面壁厚校准十分重要。目前,现行校准规范仅对标准圆管提出了技术要求,但未提供校准方法。本文提出用数显测高仪校准标准圆管壁厚的方法,通过结构受力、运动过程及校准的不确定度分析,验证其可行性与合理性。实验证明:该方法能自动找“拐点”,降低了劳动负荷,提升了工作效率。As the standard calibrator of ultrasonic thickness gauge,standard round tube is very important to calibrate curved wall thickness of ultrasonic thickness gauge.At present,the current calibration specification only puts forward the technical requirements for the standard round tube,but does not provide the calibration method.This paper presents a method of calibrating the wall thickness of standard round pipe with a digital display altimeter.The feasibility and rationality of the method are verified by analyzing the structural force,movement process and calibration uncertainty.The experiment shows that the method can automatically find the"turning point",reduce the labor load and improve the work efficiency.

关 键 词：标准圆管 数显测高仪 校准方法 拐点 

分 类 号：TH706[机械工程—仪器科学与技术]