Frequency response of search coil magnetometer with magnetic feedback
Search coil magnetometer is widely used in Magnetotellurics (MT) to measure weak magnetic field. In our design, magnetic feedback is used to flatten the frequency response near the resonance. We proposed a new model to investigate the system frequency response. Feedback coil was used in this new model to provide known external magnetic field. Theoretical and simulated transfer function is proposed. This model is more convenient to investigate the transfer characteristic than the traditional model, which needs to provide a large cylindrical coil. Measured transfer characteristic was found to agree well with the simulated result.
magnetotellurics(MT) search coil magnetometer magnetic feedback frequency response
Qin Tao Zhang Shuang Chen Shudong Lin Jun
College of Electronic Science and Engineering Jilin University Changchun, China College of Instrument Science and Electrical Engineering Jilin University Changchun, China
国际会议
太原
英文
310-313
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）