A magnetoresistive (MR) sensor based on the giant magnetoresistance (GMR) effect provides a digital output signal. The multilayer stack of alternating ferromagnetic layers and nonferromagnetic metal spacer layers in the GMR sensor has an essentially single crystalline structure so that each of the ferromagnetic...http://www.google.es/patents/US5585986?utm_source=gb-gplus-sharePatente US5585986 - Digital magnetoresistive sensor based on the giant magnetoresistance effect
Digital magnetoresistive sensor based on the giant magnetoresistance effect