Inductive signature measurement circuit
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United States of America Patent
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Jun 28, 2005
Grant Date -
May 20, 2004
app pub date -
Jul 7, 2003
filing date -
Jun 29, 2001
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Expired
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Abstract
An apparatus for measuring the inductance of a wire-loop with noise-cancellation, auto-calibration and wireless communication features, or detector circuit. The apparatus measures the effective change in inductance induced in a wire-loop as a vehicle passes over the wire-loop to produce an inductive signature corresponding to a vehicle.
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