Title :
Frequency response of search coil magnetometer with magnetic feedback
Author :
Tao, Qin ; Shuang, Zhang ; Shudong, Chen ; Jun, Lin
Author_Institution :
Coll. of Electron. Sci. & Eng., Jilin Univ., Changchun, China
Abstract :
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.
Keywords :
frequency response; magnetic sensors; magnetometers; magnetotellurics; transfer function matrices; cylindrical coil; external magnetic field; magnetic feedback; magnetotellurics; search coil magnetometer; system frequency response; transfer function; Magnetotellurics(MT); frequency response; magnetic feedback; search coil magnetometer;
Conference_Titel :
Computer Application and System Modeling (ICCASM), 2010 International Conference on
Conference_Location :
Taiyuan
Print_ISBN :
978-1-4244-7235-2
Electronic_ISBN :
978-1-4244-7237-6
DOI :
10.1109/ICCASM.2010.5619077
