磁位计在交流大电流测量中的应用  

The Application of Magnetic Potentiometer in Large A. C. Current Measurement

作　　者：陈本孝[1] 

机构地区：[1]华中理工大学交通科学与工程学院,430074

出　　处：《华中理工大学学报》1998年第2期82-84,共3页Journal of Huazhong University of Science and Technology

摘　　要：基于对磁位计特点的分析，介绍了以磁位计为采样元件的交流大电流自动测量方法．安匝模拟试验结果表明，该测量装置线性度好、精度高，误差不超过0．5％．On the basis of the feature analysis made on the magnetic potentiometer, the automatic measurement of heavy A. C. Current using a magnetic potentiometer as sampling component is discussed. The schematic diagram of the measurement system is given. The working principle of the integrator, accurate rectification circuit, multifunction A/D converter as well as the display in the system is described. The experimental results show that the system is of good linearity, and the measurement accuracy reaches 0. 5 %.

关 键 词：交流测量 大电流测量 磁位计 

分 类 号：TM933.1[电气工程—电力电子与电力传动]