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Method for inspecting the elements of piping systems by electromagnetic waves

  • US 6,008,657 A
  • Filed: 08/15/1996
  • Issued: 12/28/1999
  • Est. Priority Date: 12/16/1994
  • Status: Expired due to Fees
First Claim
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1. A method for inspecting elements of a piping system by electromagnetic waves comprising the steps of forming an opening in a wall of the pipe to be inspected, said opening being formed by installing a Tee in the pipe to be inspected, inserting a probe inside a cover closing a central branch opening of a Tee installed in the pipe to be inspected, connecting said probe and an electromagnetic wave oscillator by a coaxial cable;

  • said probe being located in the Tee with a cover installed at a central branch opening, to constitute a transmitting antenna driving electromagnetic waves by said transmitting antenna of a transmitter, to propagate electromagnetic waves in the pipe;

    moving a receiving antenna of a receiver outside the pipe along the pipe, to receive leaking electromagnetic waves for inspecting elements of the piping system; and

    detecting a location concerned with each element of the piping system to be inspected, in reference to the location of the receiving antenna where the level of electromagnetic waves received by the receiver becomes a peak.

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