Input referred noise of magneto-resistor based current conditioners

Author

Allegre, Gilles ; Timofeeva, M. ; Thomas, Julian ; Flament, Stephane ; Robbes, Didier

Author_Institution

GREYC, Caen, France

fYear

2013

fDate

24-28 June 2013

Firstpage

1

Lastpage

4

Abstract

This contribution presents, in a reverse engineering like approach, the noise measurements and analysis of two commercially available magneto-resistive currents sensors respectively based on GMR (NVE Inc.) and AMR (SENSITEC GmbH) Wheatstone bridges. Comparison is done with the ultimate aim of designing low noise current conditioners for mini search coils based, magnetometers with galvanic insulation useful for further developments.

Keywords

giant magnetoresistance; magnetic sensors; magnetoresistive devices; noise measurement; AMR Wheatstone bridges; GMR; SENSITEC GmbH; galvanic insulation; input referred noise; low noise current conditioners; magneto-resistive current sensor; magneto-resistor based current conditioners; magnetometers; mini search coils; noise measurements; Bridge circuits; Magnetic sensors; Magnetometers; Noise; Noise measurement; Tin; AMR and GMR bridges; Transconductance amplifier; current detector; current noise; hight conductance current conditioning;

fLanguage

English

Publisher

ieee

Conference_Titel

Noise and Fluctuations (ICNF), 2013 22nd International Conference on

Conference_Location

Montpellier

Print_ISBN

978-1-4799-0668-0

Type

conf

DOI

10.1109/ICNF.2013.6578902

Filename

6578902