System for monitoring diaphragm pump failure

Details System for monitoring diaphragm pump failure System for monitoring diaphragm pump failure

1997-06-05

1999-03-16

Williams, Hezron

Measuring and testing

With fluid pressure

Leakage

73 405R, 340605, 417 63, 417395, H01J 516, G01M 304, F04B 4306

Patent

active

058832998

ABSTRACT:
A diaphragm failure monitoring system for detecting leakage in a diaphragm of a diaphragm pump. The system includes a pump having an operating chamber containing a working fluid and a pumping chamber for pumping material into and out of the pump and a diaphragm separating the operating and pumping chambers. A first optic fiber is joined to the operating chamber for transmitting an optic signal across the working fluid. A second optic fiber is joined to the operating chamber for receiving the optic signal from the first optic fiber. An electric signal establishing device establishes a first electrical signal when the optic signal from the first optic fiber to the second optic fiber passes through uncontaminated working fluid. The electric signal establishing device establishes a second electrical signal when the optic signal from the first optic fiber to the second optic fiber passes through contaminated working fluid, whereby leakage of a contaminating material through the diaphragm into the operating chamber can be detected when the second electrical signal is established.

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