Highly Sensitive Fiber-Optic Faraday-Effect Magnetic Field Sensor Based on Yttrium Iron Garnet

被引：0
|
作者：
Wenbo FEI (Department of Physics
机构：
来源：
Journal of Materials Science & Technology | 2000年 / 02期
关键词：
YIG; Highly Sensitive Fiber-Optic Faraday-Effect Magnetic Field Sensor Based on Yttrium Iron Garnet;
D O I：
暂无
中图分类号：
TP212 [发送器（变换器）、传感器];
学科分类号：
080202 ;
摘要：
The principle and performance of a fiber-optic Faraday-effect magnetic-field sensor based on an yttrium iron garnet (YIG) and two flux concentrations are described. A single polarizationmaintaining optical fiber links the sensor head to the source and detection system. in which the technique of phase shift cancellation is used to cancel the phase shift that accumulate in the optical fiber. Flux concentrators were exploited to enhance the YIG crystal magnetooptic sensitivity .The sensor system exhibited a noise-equivalent field of 8 pT/Hz and a 3 dB bandwidth of-10 MHz.
引用
收藏
页码：205 / 206
页数：2
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