动车组(客车)轴端接地装置弹簧压力试验台测量不确定度评定  

Measurement Uncertainty Evaluation of Spring Pressure Test Bed for the Shaft End Grounding Device of EMU Passenger Trains

作　　者：韦宏思[1] Wei Hongsi

机构地区：[1]柳州铁道职业技术学院

出　　处：《计量与测试技术》2019年第9期117-118,共2页Metrology & Measurement Technique

摘　　要：本文就动车组(客车)轴端接地装置弹簧压力试验台的不确定度进行评定,通过分析得出,测量重复性、数显式推拉力计的示值误差、分辨力是不确定度的主要来源。分析结果表明,本项目可达到的校准测量能力(CMC)为:U=0.18N,k=2。this paper evaluates the uncertainty of the spring pressure test bed for the shaft end grounding device of EMU passenger trains.Through analysis,it comes to the conclusion that the main causes of the uncertainty are measurement repeatability,indication error of the digital push&pull tester and resolution.The result shows that the Calibration Measurement Capability(CMC)achieved in this project is:U=0.18 N,k=2.

关 键 词：轴端接地装置弹簧压力试验台 数显式推拉力计 不确定度 评定 

分 类 号：TU453[建筑科学—岩土工程]