System for and method of detecting a buried conductor
US8058874B2 · kind B2 · utility
4Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2009 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Oct 25, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/15
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for detecting a buried conductor comprises a transmitter for producing an alternating test current in the buried conductor and a receiver for detecting an electromagnetic field produced by the test current in the buried conductor. A communication link is provided between the receiver and the transmitter. The receiver measures the signal to noise ratio, SNR, of the electromagnetic field produced by the test current and if the SNR is below a threshold then the receiver controls the transmitter to set frequency and/or power characteristics of the test current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.