Device for measuring alternating current magnetic susceptibility and method of measuring the same
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United States of America Patent
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May 20, 2014
Grant Date -
Jun 16, 2011
app pub date -
Aug 6, 2010
filing date -
Dec 14, 2009
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Abstract
A device for measuring alternating current (AC) magnetic susceptibility and the method for measuring the same are provided. The device comprises an AC magnetic susceptibility coil set, a signal capturing unit, and a signal processing unit. The device detects AC magnetic susceptibility signals from under testing particles in the magnetic field with variable AC frequencies, and extracts the AC magnetic susceptibility intensity variation and phase difference and/or the real part and the imaginary part of the AC magnetic susceptibility by the signal processing unit.
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