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Method and apparatus for searching electromagnetic disturbing source and non-contact voltage probe apparatus therefor

  • US 6,154,710 A
  • Filed: 01/09/1998
  • Issued: 11/28/2000
  • Est. Priority Date: 04/05/1995
  • Status: Expired due to Term
First Claim
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1. A method of specifying invading routes of electromagnetic interference, comprising the steps of:

  • measuring voltages and currents of the electromagnetic interference developed in each of a plurality of cables electrically connected to pieces of electronic equipment by voltage and current probes, respectively;

    calculating an effective component of energy of the electromagnetic interference in each of said cables from the result of said measurements; and

    specifying an invading route of the electromagnetic interference from a direction in which a calculated energy flows.

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