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

Volume

5

fYear

2010

fDate

22-24 Oct. 2010

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICCASM.2010.5619077

Filename

5619077