Micromagnetometry detection system and method for detecting magnetic signatures of magnetic materials
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United States of America Patent
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Jul 12, 2016
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Jun 18, 2015
app pub date -
Jul 12, 2013
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Jul 13, 2012
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Abstract
A micromagnetometry system for detecting the presence of very small quantities of magnetic particles comprises a first magnetic hybrid AMR/PHR multiring sensor using a Wheastone bridge electrical configuration, a first current source, a first voltage measurement device, a set of at least one magnetic particles deposited on the first magnetic sensor and a processing unit for detecting from a set of different measured differential voltages a magnetic flux shift representative of the presence of a least one deposited magnetic particle.
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