Sensor Unit

Details Sensor Unit Sensor Unit

2006-07-04

2010-06-29

Caputo, Lisa M (Department: 2855)

Measuring and testing

Fluid pressure gauge

Diaphragm

Reexamination Certificate

active

07743663

ABSTRACT:
The invention relates to a sensor unit for measuring a measurable variable, especially in an aggressive medium. Said sensor unit comprises a sensor which is disposed in a sensor casing and is provided with a sensor zone located on a base. In order to detect the measurable variable in the sensor zone, a measuring hole which allows the medium to advance directly to the sensor zone is provided in the sensor casing. A side of the sensor zone that faces away from the measuring hole is equipped with a measuring surface which encompasses measuring electronics. An electrical feeder is provided on the sensor in order to transmit a sensor signal generated by the measuring electronics. The sensor is sealingly arranged on a sealing surface located on the sensor casing in such a way that the measuring surface is isolated from the medium. A mechanism is provided by means of a which the sensor can be disconnected from thermally and/or mechanically induced changes in the sensor casing. There also is a probe comprising a sensor unit, as well as an internal combustion engine, a hydraulic or pneumatic tool, and an air conditioner encompassing a sensor unit.

REFERENCES:
patent: 4576049 (1986-03-01), Kohnlechner
patent: 4984468 (1991-01-01), Hafner
patent: 5400655 (1995-03-01), Tamai et al.
patent: 5509312 (1996-04-01), Donzier
patent: 2002/0033050 (2002-03-01), Shibata
patent: 2009/0071259 (2009-03-01), Tanaka et al.
patent: 0251592 (1988-01-01), None
PCT/CH2006/000354—International Search Report Publication Date: Oct. 25, 2006.

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