Pressure transducer

Details Pressure transducer Pressure transducer

2007-06-19

2007-06-19

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Fluid pressure gauge

With protective separator

C073S715000, C073S753000

Reexamination Certificate

active

10571283

ABSTRACT:
The pressure transducer provided with a measuring chamber is separated by a medium which is to be measured by a separation membrane. A piezoelectric element is arranged on the measuring chamber which is filled with silicone oil, thereby enabling the specific volume of said chamber to be modified. An adjustable path of the measuring signal is compared to a reference path and considerable deviations indicate an error on the membrane. As a result, the state of the separation membrane can be monitored when the pressure transducer is in the installed state.

REFERENCES:
patent: 4825685 (1989-05-01), Breimesser
patent: 4896525 (1990-01-01), Breimesser
patent: 5114664 (1992-05-01), Terhune
patent: 5760310 (1998-06-01), Rud, Jr. et al.
patent: 2005/0241363 (2005-11-01), Krippner et al.
patent: 37 05 900 (1988-09-01), None
patent: 37 05 901 (1988-09-01), None
patent: 06307962 (1994-11-01), None

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