Wide-Range AC/DC Earth Leakage Current Sensor Using Fluxgate with Self-Excitation System

被引：0
|
作者：
Kudo, Takahiro [1 ]
Kuribara, Susumu [1 ]
Takahashi, Yasuhiro [2 ]
机构：
[1] Fuji Elect Co Ltd, Measurement Technol Dev Ctr, Tokyo, Japan
[2] Fuji Elect FA Components & Syst Co Ltd, Value Engn Ctr Fukiage, Saitama, Japan
来源：
2011 IEEE SENSORS | 2011年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper describes an ac / dc earth leakage current sensor using fluxgate magnetic sensor, which provides high sensitivity for wide-range current sensing. The fluxgate current sensor with self-excitation system can be used to detect small ac / dc current of 10mA. Two kinds of detecting which pulse width and pulse frequency could be used in this system to achieve a wide measurement range of 1:1000. These concepts are realized by the simple configuration and low cost sensor, which a toroidal core based on thin-film nanocrystalline soft magnetic material, an excitation coil, and electric circuits.
引用
收藏
页码：512 / 515
页数：4
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