Metal detection system and process using a high voltage to produce a visible electrical discharge
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United States of America Patent
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Nov 9, 1999
Grant Date -
N/A
app pub date -
May 23, 1997
filing date -
May 23, 1997
priority date (Note) -
Expired
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Abstract
The apparatus includes an electrical circuit for producing a high voltage at a high frequency with very little current and an elongated and electrically insulated electrical conductive member coupled to the circuit for producing an electrical discharge when in close proximity to a metal object in the ground. The electrical circuit is capable of producing 50,000 volts and higher. In using the apparatus, the electrical conductive member may be moved to scan the ground over a metal object to obtain an image of the shape of the metal object.
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