Under and above ground, radio frequency driven element, metal locating system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 1, 2003
Grant Date -
N/A
app pub date -
Dec 11, 2000
filing date -
Dec 17, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A metal locating system includes a first transmitter unit and a second receiver detector unit for locating an under and above ground radio frequency driven element such as a pipe. The first unit is a radio frequency transmitter operating at radio frequencies and coupled to the driven element as a loss line antenna. The receiver second unit is a switched diversity antenna connected to a radio FM receiver and a differential phase detection system. When the first unit is driven by the driven element, the second unit is able to detect and trace the position of the driven element relative to the switched diversity antenna.
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