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Optimized Mini Search Coil Magnetometer Suited To Large Bandwidth Applications

Authors:
Maria Timofeeva
Gilles Allegre
Didier Robbes
Julien Gasnier
Stéphane Flament

Keywords: search coil sensor; differential magnetometer; transimpedance amplifier; biomedical and geomagnetic measurements; non destructive evaluation

Abstract:
In the framework of a collaborative work with industry aiming at the development of a robust small size (1 cm3) large bandwidth magnetometer, a theoretical and experimental comparison of optimized search coils based magnetometers, operating either in the Flux mode or in the classical Lenz-Faraday mode, is presented. The improvements provided by the Flux mode in terms of bandwidth and measuring range of the sensor are detailed. A compact original flux mode differential magnetometer is presented and detailed in terms of measurement range, bandwidth and transfer. Theory, SPICE model and measurements are in perfect agreement.

Pages: 34 to 37

Copyright: Copyright (c) IARIA, 2011

Publication date: August 21, 2011

Published in: conference

ISSN: 2308-3514

ISBN: 978-1-61208-145-8

Location: Nice/Saint Laurent du Var, France

Dates: from August 21, 2011 to August 27, 2011