Pressure pickup with temperature compensation

Details Pressure pickup with temperature compensation Pressure pickup with temperature compensation

2004-04-29

2008-10-28

Allen, Andre J (Department: 2855)

Measuring and testing

Fluid pressure gauge

Mounting and connection

Reexamination Certificate

active

07441461

ABSTRACT:
A pressure pickup comprises: A diaphragm seal module having a diaphragm seal platform and a separating diaphragm, which is secured to the diaphragm seal platform to form a pressure chamber; a temperature sensor for registering a diaphragm seal temperature; a sensor module having a pressure measuring cell; a pressure line between the pressure chamber and the measuring cell, for loading the measuring cell with the pressure being measured; a housing, which is spaced from the diaphragm seal module and has a housing chamber in which an electronic circuit is arranged, which has inputs for signals of the pressure measuring cell and of the temperature sensor; and a canal, which extends between the housing chamber and the temperature sensor, wherein at least one electric line runs through the canal for coupling of the temperature sensor with the circuit, wherein the canal and the housing chamber form an enclosed volume, which is explosion-protected relative to the environment.

REFERENCES:
patent: 4563902 (1986-01-01), Kohnlechner
patent: 4797007 (1989-01-01), Elmore, III
patent: 4936147 (1990-06-01), EerNisse et al.
patent: 6267010 (2001-07-01), Hatanaka et al.
patent: 2 808 469 (1979-09-01), None
patent: 28 08 469 (1979-09-01), None
patent: 401 8998 (1992-01-01), None
patent: 196 08310 (1997-07-01), None
patent: 09 19796 (1999-06-01), None
patent: 1 128172 (2001-08-01), None
patent: WO 9627124 (1996-09-01), None
patent: WO 03034015 (2003-04-01), None

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