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Diagnostic system for detecting rupture or thinning of diaphragms

  • US 20060152380A1
  • Filed: 01/07/2005
  • Published: 07/13/2006
  • Est. Priority Date: 01/07/2005
  • Status: Active Grant
First Claim
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1. A diaphragm diagnostic system for use in an industrial field device comprising:

  • a diaphragm configured to couple the field device to a process fluid, the diaphragm comprising a plurality of layers, a first layer of the plurality of layers exposed to the process fluid of an industrial process; and

    a diagnostic circuit coupled to the diaphragm to monitor an electrical parameter of the diaphragm and responsively infer an operative state of the diaphragm based on a change in the monitored electrical parameter.

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