Pressure gauge

Details Pressure gauge Pressure gauge

2007-10-09

2011-12-06

Allen, Andre (Department: 2855)

Measuring and testing

Fluid pressure gauge

With pressure and/or temperature compensation

Reexamination Certificate

active

08069729

ABSTRACT:
A pressure measuring device for measuring and/or monitoring the pressure of a measured medium. The pressure measuring device includes a sensor housing and a measurement transmitter, wherein assigned to the sensor housing is a pressure measuring cell with a pressure sensitive measuring element. Assigned to the pressure measuring cell is a temperature sensor, and assigned to the measurement transmitter is a control/evaluation unit. In order to increase the measurement accuracy of the pressure measuring device, it is provided, that the control/evaluation unit, in the case of an abrupt change of the temperature registered by the temperature sensor, ascertains, or provides, a step response, wherein the step response has a sensor-type-specific, settling time, and the control/evaluation unit, on the basis of the ascertained, or provided, step response, references the corresponding time-dependent integral temperature of the pressure measuring cell, in order to eliminate, or to compensate, the temperature influence on the pressure measurement signal provided by the measuring element.

REFERENCES:
patent: 4563902 (1986-01-01), Kohnlechner
patent: 5394345 (1995-02-01), Berard
patent: 6681637 (2004-01-01), Jacob et al.
patent: 2002/0026835 (2002-03-01), Jacob et al.
patent: 2002/0124654 (2002-09-01), Jacob et al.
patent: 2005/0000290 (2005-01-01), Petit
patent: 2007/0068264 (2007-03-01), Muth et al.
patent: 2009/0158853 (2009-06-01), Berner et al.
patent: 2011/0100129 (2011-05-01), Gruhler
patent: 2011/0100130 (2011-05-01), Gruhler
patent: 3503489 (1986-07-01), None
patent: 242 274 (1987-01-01), None
patent: 4108460 (1992-09-01), None
patent: 4315336 (1994-11-01), None
patent: 10150691 (2003-04-01), None
patent: 10319417 (2004-11-01), None
patent: WO 92/16886 (1992-10-01), None
patent: WO 03/034015 (2003-04-01), None

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