数字电表误差表示方法的研究  

Study on error expressions of digital electrical measuring instruments

作　　者：任国海[1] 金涛[1] 陆晓静[1] 黄季龙[1] 程肇基[2] 

机构地区：[1]浙江大学方圆公司,浙江杭州310027 [2]浙江大学电气工程学院,浙江杭州310027

出　　处：《浙江大学学报（工学版）》2002年第3期331-334,共4页Journal of Zhejiang University：Engineering Science

摘　　要：首先列举了数字电表现有的多种误差表示方法 ,然后对误差产生的原因进行了分析 ,认为误差可以归纳成两类 :1与被测量成正比的部分 ;2与被测量无关的固定误差 .结合浙江大学方圆公司生产的多种数字电表的大量实测误差数据 ,分析讨论了误差的各种表示方法的优缺点 ,认为用二项误差表示数字电表的误差 ,比较符合实际情况 ,还扩大了电表的使用范围 .所得结论可供数字电表的生产者和使用者参考 .The current different kinds of error expressions of digital electrical measuring instruments are firstly illustrated. Then the popular causes of these errors are analysed. These errors may be concluded to two kinds: one kind of errors directly proportional to the measured value, and constant errors. Based on a lot of experimental results of various digital electrical measuring instruments and the analysis of merits and demerits of different kinds of one, the error expression of the two terms is the best one of the digital electrical measuring instruments. The conclusion can be utilized by the manufacturers and users of digital electrical measuring instruments.

关 键 词：数字电表 误差表示 电测量 

分 类 号：TM933[电气工程—电力电子与电力传动] TM930.115