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US 2010/0060285 A1Published application
Detector for Detecting a Current Carrying Conductor and a Method of Validating Operation of the Detector
AssigneeRadiodetection Limited
InventorsRichard David Pearson, Kevin Conway
Life of this patent
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Abstract
A detector for detecting a buried conductor comprises a plurality of antennas B, T. Each antenna B, T has a winding wound around the antenna, the winding being connected to a current source for providing a predefined current in the winding. When the predefined current is applied to the winding an electromagnetic field is generated at the antenna which induces a test current in the antenna. The test current is compared to calibration data stored in the detector to validate the correct operation of the detector.
Claims24
A detector for detecting a buried conductor, the detector comprising:
- a plurality of antennas for detecting an electromagnetic field;
- a plurality of windings, each wound around a respective antenna, each winding being connected to a current source for providing a predefined current in the winding to generate an electromagnetic field at the antenna, thereby inducing a test current in the antenna;
- a memory for storing calibration data of the antennas;
- and
- a processor configured to process the test currents in the antennas to determine if the test currents are within predetermined limits of the calibration data.
2 more elements
Dependencies are inferred from the claim text.