电能表标准装置测量结果不确定度评定  

The Evaluation of Measurement Uncertaintyfor Watt-hour Meter Calibration Device

作　　者：宋楠[1] 宋雨虹[1] 王长瑞[1] 余志森[1] 

机构地区：[1]华北电力科学研究院有限责任公司,北京100045

出　　处：《电测与仪表》2009年第2期77-80,共4页Electrical Measurement & Instrumentation

摘　　要：测量不确定度是表征合理地赋予被测量之值的分散性,与测量结果相联系的参数。为了指导在不同应用情况下,对电能表标准装置测量结果不确定度的评定,本文提出电能表标准装置申请建立计量标准时,从对装置解剖的角度评定测量结果的不确定度;对已通过计量标准考核的装置,将装置的等级作为与装置相关的属性进行不确定度评定。最后文中给出应用举例。Uncertainty of measurement is a parameter associated with the results, which characterized with the dispersion of values that are reasonably attributed to the measurement. In order to instruct the measurement uncertainty evaluation in different occasions ,the manner of device decomposition was adopted in the process of Watt-hour meter calibration device standard foundation. While after standardizing foundation, the device grade could be accepted as an uncertainty value,relating to device. At last, examples were offered.

关 键 词：测量不确定度 扩展不确定度 电能表标准装置 正态分布 包含因子 

分 类 号：TM930.114[电气工程—电力电子与电力传动]