DIAGNOSTIC SYSTEM FOR DETECTING RUPTURE OR THINNING OF DIAPHRAGMS

摘要

A diaphragm diagnostic system (500) for use in an industrial field device has a diaphragm (502) and a diagnostic feature. The diaphragm (502) is configured to couple the field device to a process fluid and has a plurality of layers. A first layer (506) of the plurality of layers is exposed to process fluid of an industrial process. A diagnostic feature is coupled to the diaphragm (502) to monitor an electrical parameter of the diaphragm (502) and responsively infer an operative state of the diaphragm (502) based on a change in the monitored electrical parameter.