Direct acting indicating analogue electrical - measuring instruments and their accessories - part 1 : definitions and general requirements common to all parts iec 60051 - 1 : 1997 ; german version en 60051 - 1 : 1998 直接作用模拟指示电测量仪表及其附件.第1部分:定义和
Direct acting indicating analogue electrical measuring instruments and their accessories . part 5 : special requirements for phase meters , power factor meters and synchroscopes 直接作用模拟指示电测量仪表及其附件第5部分:相位表功率因数表和同步指示器的特殊要求
Main products of digital display electric measurement meters , intelligent electric measurement meters , multi - function electric meters , network electric measurement meters , electric power quality analysis instrument , single ( three ) - phase watt - hour meter , multi - function watt - hour meter and protecting the device developing 主要产品数显电测量仪表、智能电测量仪表、多功能电力仪表、网络电测量仪表、电力质量分析仪、单三相电子式电能表、多功能电能表、综合保护装置。
According to the definition and evaluation reyuirement of uncertainty given in the standard jjf1059 - 1999 《 evaluation and expression of uncertainty in measurement 》 , we analyse the uncertainty of verification device for electrical measuring instrument ( tranducers ) and give some examples to explain the evaluation method for the device 摘要根据jjf1059 - 1999 《测量不确定度评定与表示》标准中对不确定的定义和评定要求，我们对电测量仪表（变送器）检定装置的不确定度进行了分析，并举例说明了电测量仪表（变送器）检定装置不确定度的评定方法。
