分流器自动检定系统的研制  

Research on the Automatic Verification System of D.C.Shunt

作　　者：王新军 汪心妍 李道民 朱庆发 

机构地区：[1]山东省计量科学研究院,济南250014 [2]上海兰斯汀仪表研究所,上海200082

出　　处：《电测与仪表》2010年第A08期33-35,共3页Electrical Measurement & Instrumentation

摘　　要：提出了一个新型直流分流器的自动检定系统的设计方案。通过对电流比较仪的工作原理及直流分流器的计量特性的研究,利用电流比较仪技术及电流换向方式,有效减少了热电势,大大提高了测量准确性。系统采用模块化设计,通过GPIB卡对仪器进行控制和数据采集,能够快速完成测试数据的采集、误差计算、修约、显示、存储以及原始记录和证书的处理工作,提高了检定效率。该方案对提高分流器检定工作效率、降低成本和能耗,有一定的现实意义。This article introduces a new scheme of the automatic verification system of D.C. shunt. On the basis of research upon the principle of current comparator and its metrological characteristics, co-workers adopt current comparator technology and present commutation means to effectively reduce the thermoelectric power, then improved accuracy greatly. The system adopts modular design, accomplishing instrument control and data collection through GPIB card, which could rapidly finish data collection, error calculation, round-off error, data display, data storage and arrangement of original records and certificate. This new scheme helps to increase the efficiency of verification,meanwhile to reduce cost and energy consumption.

关 键 词：直流分流器 自动检定系统 电流比较仪 换向 控制 

分 类 号：TM54[电气工程—电器]