MI magnetic field sensor
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United States of America Patent
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Jan 5, 2021
Grant Date -
Feb 15, 2018
app pub date -
Feb 23, 2016
filing date -
Mar 6, 2015
priority date (Note) -
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Abstract
An electrical pulse current is supplied to an amorphous wire from a pulse generator, an alternate current voltage whose magnitude is in response to an external magnetic field induced at both ends of a detecting coil wound around the amorphous wire is generated, a positive direct current is applied from a positive power supply by superimposing to the amorphous wire as a bias current so as to produce a bias of magnetization within the amorphous wire and the occurrence of pulse noises is restrained, so as to make it possible to perform high-sensitivity magnetic field detection.
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