The Research of Advancing the Apparent Permeability for the Core of the Inductive Magnetic Sensor

摘要：

To detect large depth,Magneto-Telluric(MT) requires a wide frequency range magnetic sensor. Nevertheless,the lower frequency is ,the weaker inductive voltage of the search coil becomes. For making the broad frequency magnetic sensor,improving the initial sensitivity is the key. As the resonant frequency,volume,weight of the sensor are limited,enhancing apparent permeability of the core is the primary means. In this paper, we added magnetic flux concentrators on both sides of the core, as a result, the apparent permeability increase by 33.6％ at the center, 2.1 times at the edge when the flux concentrators diameter is 7cm and height 1cm .By this means we increased the initial sensitivity ,reduced the size, expanded the band of the sensor.The result is satisfactory.

关键词： Induction Initial sensitivity Flux concentrator Apparent permeability

作者: Shao Yingqiu Wang Yanzhang Cheng Defu Zhang Fei

作者单位: Key Laboratory for Geophysical Instrumention of Ministry of Education Jilin University 2 College o Key Laboratory for Geophysical Instrumention of Ministry of Education Jilin University College of

会议类型: 国际会议

会议名称: 2010 International Conference on Measurement and Control Engineering(2010年IEEE测量与控制工程国际会议 ICMCE2010)

会议地点: 成都

会议语种:英文

页码: 626-630

在线出版日期: 2010-11-16（万方平台首次上网日期，不代表论文的发表时间）