PRE-FAILURE WARNING PUMP DIAPHRAGM

摘要

This invention provides a conductive strand embedded in a diaphragm in which the strand undergoes changes in electrical properties upon being subjected to stress. A change in electrical conductivity is recorded by an electrical monitoring device connected electrically with the conductive strand. By observing changes in the conductivity that deviate from a predetermined norm, the fatigue or wear on the diaphragm can be detected.