An Optimization Method for Induction Magnetometer of 0.1 mHz to 1 kHz

Author

Bin Yan ; Wanhua Zhu ; Leisong Liu ; Kai Liu ; Guangyou Fang

Author_Institution

Grad. Univ. of Chinese Acad. of Sci., Beijing, China

Volume

49

Issue

10

fYear

2013

fDate

Oct. 2013

Firstpage

5294

Lastpage

5300

Abstract

The induction magnetometer (IM) is one of the most widely used tools to measure the variation of magnetic field in space research, geophysical exploration, environment monitoring, and so on. In this work, we proposed two different kinds of optimization methods for an IM in the frequency range of 0.1 mHz to 1 kHz; the first is for a known core and the other is for a limited IM´s volume. The optimum IM we designed, with weight less than 3 kg, diameter 45 mm, length 850 mm, and 1Hz noise level 0.2 pT/√Hz, made a new record of IM for the Magnetotelluric (MT) method and was beneficial to those in the MT field working in oil and mineral explorations. The experimental results of the optimum IM fully confirm the theoretical optimization.

Keywords

magnetic cores; magnetic noise; magnetometers; magnetometry; magnetotellurics; optimisation; IM volume; MT method; environment monitoring; frequency 0.1 mHz to 1 kHz; geophysical exploration; induction magnetometer; magnetic field measurement; magnetotelluric method; mineral exploration; noise level; oil exploration; optimization method; size 45 mm; size 850 nm; space research; Magnetometers; noise; optimization method; weight control;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2264821

Filename

6519320