静态机车车辆称重台测量结果不确定度评定  

Uncertainty Evaluation of Measurement Results of Weigh Bridge of Locomotive and Car

作　　者：王佳兴 彭冲 赵小康 高翔 WANG Jiaxing;PENG Chong;ZHAO Xiaokang;GAO Xiang

机构地区：[1]国家轨道衡计量站,北京100081

出　　处：《铁道技术监督》2023年第5期66-69,共4页Railway Quality Control

摘　　要：为了开展静态机车车辆称重台的量值传递和溯源,根据JJF 1059.1—2012《测量不确定度评定与表示》,建立利用标准测力仪作为标准器的测量模型,分析测量过程中的影响因素,确定测量不确定度来源,采用GUM法评定静态机车车辆称重台测量结果不确定度。结果表明,2个测量段所有测量结果的扩展不确定度均小于最大可接受扩展不确定度。In order to carry out dissemination and traceability of the value of quantity of the weigh bridge of locomotive and car,according to JJF 1059.1—2012 Evaluation and expression of measurement uncertainty,the measurement model using a standard dynamometer as a standard instrument is established,the influencing factors in the measurement process are analyzed,the source of measurement uncertainty is determined.And the GUM method is used to evaluate the uncertainty of measurement results of the weigh bridge of locomotive and car.The results show that the expanded uncertainty of all measurement results in two measurement intervals is less than its maximum acceptable expanded uncertainty.

关 键 词：静态机车车辆称重台 标准测力仪 测量不确定度 评定 

分 类 号：U294.21[交通运输工程—交通运输规划与管理]