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US 10,761,233 B2Granted
Sondes and methods for use with buried line locator systems
OwnerMark S. Olssoninventor
Life of this patent
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Abstract
Sondes and sonde arrays for use with portable buried object locating systems are disclosed.
Claims17
A utility locating system, comprising:
- a buried utility locator;
- and
- a magnetic field generating sonde comprising a plurality of magnetic field antennas arranged in three mutually orthogonal sets each including an opposing pair of coils and each wired electrically in-phase and in-series for radiating magnetic field signals for detection by the buried utility locator;
- wherein each set of the three mutually orthogonal sets is configured to radiate magnetic field signals at a unique different frequency than the frequency of the signal radiated from ef the other of the three mutually orthogonal sets.
1 more element
A method for locating buried utilities, comprising:
- generating, from a magnetic field sonde having a plurality of magnetic field antennas arranged in three mutually orthogonal sets each including an opposing pair of coils and each wired electrically in-phase and in-series, a three-dimensional magnetic field signal at a plurality of different frequencies;
- receiving, at a buried utility locator, the three-dimensional magnetic field signal at each of the plurality of different frequencies;
- and
- determining, based at least on part on the received magnetic field signals at the plurality of different frequencies, an estimated position and/or orientation of the magnetic field sonde within a pipe or cavity relative to the buried utility locator.
1 more element
Dependencies are inferred from the claim text.