Apparatus and method for monitoring and controlling detection of stray voltage anomalies

  • US 9,666,057 B2
  • Filed: 08/18/2015
  • Issued: 05/30/2017
  • Est. Priority Date: 12/23/2004
  • Status: Active Grant
First Claim
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1. An apparatus for identifying a hazardously energized object, the apparatus comprising:

  • a motor vehicle configured to drive along a patrolled environment;

    one or more sensor probes, coupled to the motor vehicle, that detect an electric field proximate the motor vehicle and provide an analog signal corresponding to the electric field as the motor vehicle moves past a potentially hazardously energized object,a signal converter that generates a digital signal from the analog signal;

    a processor configured to process the digital signal at the fundamental frequency or its harmonics pertaining to the hazardously energized object and to provide a second signal representing a magnitude of the electric field at the desired frequency; and

    a display configured to display a change in the form of a rise, peak and fall in the digital signal over time as the motor vehicle performs a movement along the patrolled environment, the change indicating that a hazardously energized object is passed near-field, approximately ten to fifty feet away from the energized object.

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