基于光电轴角编码器的扭转角度校准系统研究  

Calibration system for torsion angle based on photoelectric shaft encoder

作　　者：王贵勇 朱林茂[1,2] 祝铁柱 杨东[2] 王增光 王蓬 王海舟 WANG Gui-yong;ZHU Lin-mao;ZHU Tie-zhu;YANG Dong;WANG Zeng-guang;WANG Peng;WANG Hai-zhou(Central Iron&Steel Research Institute,Beijing 100081,China;NCS Testing Technology Co.,LTD.,Beijing 100081,China)

机构地区：[1]钢铁研究总院,北京100081 [2]钢研纳克检测技术股份有限公司,北京100081

出　　处：《机电工程》2021年第3期373-377,共5页Journal of Mechanical & Electrical Engineering

基　　金：国家重点研发计划资助项目(2018YFB0704100)。

摘　　要：在定期校准时,扭转试验机主动旋转夹头的扭转角度存在无法有效进行全量程扭转角度校准的问题,针对这一问题,对扭转试验机的结构及工作原理进行了研究,提出了一种基于光电轴角编码器的扭转角度校准系统。设计了校准系统的结构,并建立了其工作流程,搭建了基于光电轴角编码器的扭转角度校准系统;采用该系统对扭转试验机的扭转角度进行了校准,并对校准结果进行了不确定度评定、示值相对误差计算及重复性计算。研究结果表明:扭转角度校准系统具有结构简单、操作方便、性能稳定的特点,能够满足JJG269-2006《扭转试验机检定规程》中扭转角度的计量要求,可为开发与构建更高精度、更高效率等级的扭转试验机的扭转角度校准器具提供设计参考。Aiming at lacking of effective,reliable and full-scale torsion angle calibration device for calibration of torsion angle of the active rotating clamp of torsion testing machine which was needed to be calibrated regularly,the structure and working principle of the torsion testing machine were researched,and a calibration system for torsion angle based on photoelectric shaft encoder was proposed.The structure of the calibration system was designed,and its workflow was established,and the calibration system for torsion angle based on photoelectric shaft encoder was built.The torsion angle of torsion testing machine was calibrated by using the calibration system.The calibration result was evaluated for its uncertainty.And the relative error calculation and the repeatability calculation were also carried out for the calibration result.The results indicate that the calibration system for torsion angle has the characteristics of simple structure,convenient operation and stable performance,which can not only meet the measurement requirement of torsion angle in JJG269-2006 Torsion Testing Machine Verification Regulations,but also provide a reference for the development and construction of calibration device for the torsion angle of torsion testing machine with higher accuracy and higher efficiency.

关 键 词：光电轴角编码器 扭转试验机 扭转角度 校准系统 

分 类 号：TH87[机械工程—仪器科学与技术]