Balancing circuit for a metal detector
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United States of America Patent
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Feb 22, 2011
Issued Date -
N/A
app pub date -
Jul 19, 2007
filing date -
Jul 19, 2007
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A balancing circuit for a metal detector. The metal detector includes an oscillating power source, a transmit coil connected to the oscillating power source, first and second receive coils inductively coupled to the transmit coil, a first amplitude balancing circuit connected to the first receive coil, and a first phase balancing circuit connected to the first receive coil. The first phase balancing circuit includes a capacitor and a variable resistor.
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