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Corrosion detection apparatus for monitoring a state of corrosion

  • US 9,097,745 B2
  • Filed: 04/08/2011
  • Issued: 08/04/2015
  • Est. Priority Date: 04/14/2010
  • Status: Active Grant
First Claim
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1. A corrosion detection apparatus for permanently and integrally monitoring a state of corrosion of a component, wherein the corrosion detection apparatus comprises:

  • a sensor circuit configured to detect corrosion on the component, wherein the sensor circuit includesa first electrical line section;

    a second electrical line section; and

    a corrosion-sensitive bridging element having a first end and a second end,wherein, in a initial state, the first end is in electrical connection with the first line section and the second end is in contact with the second line section,wherein the corrosions-sensitive bridging element has a first electrical conductivity in the initial state and a second electrical conductivity in a corrosion state such that the sensor circuit detects corrosion on the basis of the change from the first to the second electrical conductivity,wherein the first electrical line section is a first electrode of a condenser and the second electrical line section is a second electrode of the condenser,wherein the condenser is an interdigital condenser and the corrosion-sensitive bridging element is a thin layer between two electrodes of the interdigital condenser.

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