Title :
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
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;
Conference_Titel :
Noise and Fluctuations (ICNF), 2013 22nd International Conference on
Conference_Location :
Montpellier
Print_ISBN :
978-1-4799-0668-0
DOI :
10.1109/ICNF.2013.6578902
