Pre-failure warning pump diaphragm

Details Pre-failure warning pump diaphragm Pre-failure warning pump diaphragm

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 49/10 (2006.01) B29C 70/88 (2006.01) F04B 43/00 (2006.01) F04B 43/02 (2006.01) G01B 7/06 (2006.01) G01L 1/20 (2006.01) G01L 9/00 (2006.01)

Patent

CA 2167067

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.

La présente invention décrit un câble conducteur noyé dans une membrane, dont les caractéristiques électriques varient lorsqu'il est soumis à une contrainte. Une variation de la conductivité électrique est enregistrée par un dispositif de contrôle électrique connecté électriquement au câble conducteur. L'observation des variations de conductivité qui s'écartent d'une norme prédéterminée permet de détecter la fatigue ou l'usure de la membrane.

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