Electricity: measuring and testing – Of geophysical surface or subsurface in situ – For small object detection or location
Patent
1992-06-22
1994-11-01
Strecker, Gerard R.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
For small object detection or location
324 67, 455103, G01V 311, G01V 3165, G01R 1900, H04B 102
Patent
active
053610296
ABSTRACT:
An improved locator system is provided which simultaneously couples a number of different frequency signals to a number of concealed underground conductive lines, for the purpose of locating and distinguishing between the underground lines. The locator system includes a transmitter which generates the different frequency signals for coupling to the underground lines. A receiver is also provided that detects the different frequency signals and distinguishes between the underground lines. The locator system further provides an arrangement for operating at virtually any frequency within the locating band, and for preselecting an operating frequency that avoids interference from extraneous signals.
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Querry Lester R.
Rider Alan J.
Strecker Gerard R.
The Charles Machine Works, Inc.
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