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METHODS AND SYSTEMS FOR AUTOMATED PIPELINE TESTING

  • US 20070035315A1
  • Filed: 05/26/2006
  • Published: 02/15/2007
  • Est. Priority Date: 06/22/2001
  • Status: Active Grant
First Claim
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1. A method for testing effectiveness of a cathodic protection device configured to apply at least one voltage across an underground structure and a reference point, said method comprising:

  • providing a sample of the material from which the underground structure is fabricated;

    placing the sample underground, proximate the underground structure;

    electrically connecting the sample to the underground structure through a switch;

    operating the switch at predetermined intervals; and

    measuring electrical characteristics of the sample at intervals based at least partially on the predetermined intervals and a position of the switch.

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