Sensor having a sensor element arranged in a housing

Details Sensor having a sensor element arranged in a housing Sensor having a sensor element arranged in a housing

1994-07-22

1996-04-09

Williams, Hezron E.

Measuring and testing

Gas analysis

Detector detail

G01N 700, G01N 3322

Patent

active

055050735

ABSTRACT:
A sensor assembly for sensing gaseous or fluid medium such as sensing oxygen within exhaust gas of an automobile. The assembly provides a sensor element within a housing mounted within a S-shaped flow channel between a medium entry aperture and exit aperture. A shield is provided upstream of the sensor in a flow direction of the medium. The arrangements provide for a laminar flow across the sensor element causing reduced deposits on the surface of the sensing element for a more accurate sensor and a longer service life of the sensor element.

REFERENCES:
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patent: 3776208 (1973-12-01), Stumpp
patent: 4115229 (1978-09-01), Capone
patent: 4339318 (1982-07-01), Tanaka et al.
patent: 4492614 (1985-01-01), Welsh
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patent: 4597850 (1986-07-01), Takahasi et al.
patent: 4742711 (1988-05-01), Porth et al.
patent: 4903481 (1990-02-01), Schuster et al.
patent: 4916934 (1990-04-01), Nagata et al.
patent: 4944861 (1990-07-01), Reber
patent: 5251470 (1993-10-01), Lampe et al.

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