Pressure transducer and method for monitoring the state of a...

Details Pressure transducer and method for monitoring the state of a... Pressure transducer and method for monitoring the state of a...

2008-10-31

2010-11-09

Allen, Andre J (Department: 2855)

Measuring and testing

Fluid pressure gauge

Diaphragm

C073S736000

Reexamination Certificate

active

07827866

ABSTRACT:
A pressure transducer for a pressure sensor (2) for determining at least one pressure (pa, pb) in a process media (3a,3b) has a housing (4) with a separating diaphragm (5a,5b), at least one first pressure-sensing element (6a,6b), a contact media (7a,7b), at least one first connection element (8a,8b) and at least one first seal (9a,9b). The separating diaphragm (5a,5b) separates the process media (3a,3b) from the contact media (7a,7b), the contact media (7a,7b) conveys the pressure (pa, pb) of the process media (3a,3b) determined by the separating diaphragm (5a,5b) to the first pressure-sensing element (6a,6b). The first seal (9a,9b) houses the first connection element (8a,8b) and the housing (4), the separating diaphragm (5a,5b) and the first seal (9a,9b) form a first pressure chamber (10a,10b). A second pressure chamber (14) is provided on the side of the first pressure chamber (10a,10b) opposite the first seal (9a,9b) and a second pressure-sensing element (15) is arranged in the second pressure chamber (14).

REFERENCES:
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patent: 5287746 (1994-02-01), Broden
patent: 7231827 (2007-06-01), Kumpfmüller
patent: 7284437 (2007-10-01), Krippner et al.
patent: 2002/0115397 (2002-08-01), Kajiwara et al.
patent: 2002/0153426 (2002-10-01), Yano et al.
patent: 2007/0289386 (2007-12-01), Burczyk et al.

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