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Method and apparatus for detecting an energized e-field

  • US 10,024,899 B2
  • Filed: 02/28/2017
  • Issued: 07/17/2018
  • Est. Priority Date: 10/16/2013
  • Status: Active Grant
First Claim
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1. A method for detecting a presence of an energized e-field in a space for heating an article, wherein the space includes an article to be heated and at least one electrically conductive element configured to produce a voltage or current in reaction to an energized e-field in the space and coupled with a controller, the method comprising:

  • if the at least one electrically conductive element produces a voltage or current in reaction to the e-field apart from the article, receiving in the controller a signal from the at least one electrically conductive element indicative of a value of a parameter associated with voltage or current flow in the at least one electrically conductive element;

    determining that the energized e-field occupies the space based on the received signal; and

    sending a signal from the controller indicative of the presence of the energized e-field in the space.

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