G - Physics – 01 – V
Patent
G - Physics
01
V
G01V 9/00 (2006.01) G01V 15/00 (2006.01)
Patent
CA 2311834
The invention provides an interactive means to locate and identify underground utilities. The apparatus is used with a marker associated with an elongate electrical conductor, which may be a cable shield or a trace wire. It includes a remote, portable probe that is used to transmit a RF signal to be received by a transponder associated with the marker. The transponder is powered by a DC potential on the conductor. In preferred embodiments it has the capability of communicating with a terminal unit over the conductor to transmit information and instructions between the probe and the terminal unit.
Battison Williams Dupuis
Norscan Instruments Ltd.
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