Coriolis mass flow sensor having optical sensors

Details Coriolis mass flow sensor having optical sensors Coriolis mass flow sensor having optical sensors

2006-10-10

2006-10-10

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

Mass flow by imparting angular or transverse momentum to the...

Reexamination Certificate

active

07117751

ABSTRACT:
A Coriolis mass flow sensor includes a flow tube, a light source, and a light pipe having a light inlet situated to receive light from the light source and a light outlet for emitting light received from the light source. A light detector receives light from the light pipe light outlet, and a drive device vibrates the flow tube such that the flow tube moves through a light path between the light outlet of the light pipe and the light detector. In certain embodiments, the light pipe defines a generally square cross section. A sensing aperture having a predetermined shape is situated between the light outlet of the light pipe and the light detector. The sensing aperture passes a portion of the light emitted from the light outlet of the light to the light detector, such that the light entering the light detector has the predetermined shape.

REFERENCES:
patent: 4187721 (1980-02-01), Smith
patent: 4422338 (1983-12-01), Smith
patent: 4559833 (1985-12-01), Sipin
patent: 4730501 (1988-03-01), Levien
patent: 4777833 (1988-10-01), Carpenter
patent: 4895031 (1990-01-01), Cage
patent: 4914956 (1990-04-01), Young et al.
patent: 5038620 (1991-08-01), Rogers et al.
patent: 5379649 (1995-01-01), Kalotay
patent: 5423225 (1995-06-01), Cage
patent: 5473949 (1995-12-01), Cage et al.
patent: 5555190 (1996-09-01), Derby et al.
patent: 5648616 (1997-07-01), Keel
patent: 5675093 (1997-10-01), Young et al.
patent: 5854430 (1998-12-01), Drahm et al.
patent: 6513392 (2003-02-01), Barger et al.
patent: 6526839 (2003-03-01), Barger et al.
patent: 6606917 (2003-08-01), Sund et al.
patent: 6711958 (2004-03-01), Bitto et al.
patent: 6748813 (2004-06-01), Barger et al.
patent: 6769301 (2004-08-01), Barger et al.
patent: 6807868 (2004-10-01), Nakao et al.
patent: 6860158 (2005-03-01), Bitto et al.
patent: 2003/0031444 (2003-02-01), Croteau et al.
patent: 2003/0097881 (2003-05-01), Schlosser et al.
patent: 42 26 391 (1994-02-01), None
patent: 1 182 433 (2002-02-01), None
patent: 2003 121664 (2003-04-01), None
International Search Report and Written Opinion for corresponding International Application No. PCT/US2004/044066.

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