Determining liquid volumes in cup-like vessels on a rotor having

Details Determining liquid volumes in cup-like vessels on a rotor having Determining liquid volumes in cup-like vessels on a rotor having

1996-11-13

1998-05-19

Le, Long V.

Chemistry: analytical and immunological testing

Automated chemical analysis

Condition or time responsive

436 49, 436 54, 436180, 422 64, 422 67, 422100, 7386411, 7386301, G01N 3510

Patent

active

057535124

ABSTRACT:
Method and apparatus for determining actual liquid volumes in vessels in an incubator rotor that experiences vertical run-out as it rotates past stations that fill the vessels with liquid. Air pressure is used to determine the height of the bottom of each of the empty vessels, and then the height of the liquid that fills the vessels, so that the difference in height is converted into volume to compare with the desired and expected volume for the operation that does the volume-filling.

REFERENCES:
patent: 4794085 (1988-12-01), Jessop et al.
patent: 5013529 (1991-05-01), Itoh
patent: 5133392 (1992-07-01), Hamann
patent: 5244633 (1993-09-01), Jakubowicz et al.
patent: 5270210 (1993-12-01), Weyrauch et al.
patent: 5319964 (1994-06-01), Stephenson et al.
patent: 5389339 (1995-02-01), Petschek et al.
patent: 5443791 (1995-08-01), Cathcart et al.

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