GMR based integrated non-contact voltage sensor for fuel cells monitoring

Abstract

We present an integrated voltage sensor dedicated to fuel cells monitoring. This sensor is based on Giant Magneto Resistances (GMR) as sensitive elements coupled to a micron size integrated metallic line which creates a field on the GMR elements when a current flows in it. Complete module containing eight channels with the associated electronics have been developed and successfully tested on fuel cells for automotive. Magnetoresistance, magnetic sensors, fuell cells, automotive.