瓶盖扭矩仪扭矩示值校准系统及不确定度评定  

The Calibration System and Uncertainty Evaluation for Torque Rating of Bottle Cap Torque-meters

作　　者：吴志煜[1] 李静 郑晓兰[1] 王晖[1] 陈海滨[1] WU Zhiyu;LI Jing;ZHENG Xiaolan;WANG Hui;CHEN Haibin(Yunnan Institute of Metrology and Testing Technology,Kunming 650228,China)

机构地区：[1]云南省计量测试技术研究院,昆明650228

出　　处：《计量科学与技术》2021年第12期26-29,共4页Metrology Science and Technology

基　　金：云南省计量测试技术研究院科研项目经费(JLKY2017-4)。

摘　　要：为了测量瓶盖扭矩仪的扭矩示值,设计了专用校验杠杆、力值砝码加载机构及水平转为垂直的受力加载机构,通过力值砝码产生的力值与校验杠杆力臂长度的乘积来测量扭矩示值,分析测量过程中影响测量结果的不确定因素和来源,并对扭矩示值测量结果的不确定度进行分析和评定。结果表明,自行设计的瓶盖扭矩仪专用检校装置其计量性能稳定可靠,可开展1级及以下瓶盖扭矩仪及小量程专用扭矩测试仪的检校工作,为其扭矩示值溯源提供计量技术支撑。A device for meauring torque rating of bottle cap torque-meters was developed.The device includes a special check lever,a force weight loading mechanism,and a horizontal to vertical loading mechanism.The torque rating was measured by multiplying the force value of the weight and the arm length of the check lever.Factors affecting measurement uncertainty were analyzed and the uncertainty in the measurement results of the torque rating was evaluated.The results showed that the performance of the device was stable and reliable.It can be used to calibrate bottle cap torque-meters of level 1 or below and small range special torque testers,providing traceability for their torque indication.

关 键 词：瓶盖扭矩仪 扭矩示值 校验杠杆 不确定度 

分 类 号：TH69[机械工程—机械制造及自动化]