SYSTEMS AND METHODS FOR MAGNETIC FIELD DETECTION
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United States of America Patent
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Issued Date -
Jan 7, 2016
app pub date -
Mar 6, 2014
filing date -
Mar 7, 2013
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Abstract
This disclosure provides systems, methods, and apparatus for detecting magnetic fields. A magnetic sensor can include a substantially planar magnetostrictive layer. A piezoelectric layer can be bonded to a lower surface of the magnetostrictive layer. An electrode layer can be bonded to a lower surface of the piezoelectric layer. The device can be configured such that, when exposed to a magnetic field, at least one of an admittance amplitude, a quality factor, and a resonant frequency of the device is altered. The device can have a resonant frequency in the range of about 1 MHz to about 100 GHz.
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