开环控制液压试验机测量不确定度评定  

Interpretation of hydraulic testing machine with open loop control and evaluation and analysis of measurement uncertainty

作　　者：缪顺新 胡跃林 魏浩 MIAO Shunxin;HU Yuelin;WEI Hao(Lanxi Institute of Product and Commodity Quality Inspection,Lanxi 321100,China)

机构地区：[1]兰溪市产品商品质量检测研究院,浙江兰溪321100

出　　处：《工业计量》2024年第2期120-123,共4页Industrial Metrology

摘　　要：根据JJG 139—2014《拉力、压力和万能试验机检定规程》的解读,该规程适用于具有开环控制试验机的检定或校准。为了便于检定或校准人员理解与操作,文章主要介绍了开闭环控制试验机的区别,并结合工作实践,采用0.3级标准测力仪标准装置对开环控制的试验机相关力值点进行校准,然后将该测量的结果进行不确定度评定与验证。According to the interpretation of JJG 139—2014 Verification Regulation of Tension,Pressure and Universal Testing Machines,this regulation is applicable to the verification or calibration of open-loop controlled testing machines.In order to facilitate the understanding and operation of verification or calibration personnel,this paper mainly introduces the differences between open-loop controlled testing machines.Combined with work practice,the 0.3 level standard force measuring instrument standard device is used to calibrate the relevant force points of open-loop controlled testing machines,Then the measurement results are evaluated and verified for uncertainty.

关 键 词：试验机 开闭环控制 不确定度 

分 类 号：TH89[机械工程—仪器科学与技术]