Apparatus and method for detecting liquid penetration by a...

Details Apparatus and method for detecting liquid penetration by a... Apparatus and method for detecting liquid penetration by a...

G - Physics

01

N

340/145

G01N 1/00 (2006.01) G01N 35/10 (2006.01) G01N 35/04 (2006.01)

Patent

CA 1252173

-0- APPARATUS AND METHOD FOR DETECTING LIQUID PENETRATION BY A CONTAINER USED FOR ASPIRATING AND DISPENSING THE LIQUID Abstract Apparatus and a method are described which permit the detection of penetration of liquid by an apertured container used for aspirating and dispensing the liquid. The apparatus and method feature control means for advancing the container an increment of the maximum possible distance to the liquid; generating a pressure differential within the dispensing container that is sufficient to generate a signal that is indic- ative of whether the container aperture is closed by the liquid; detecting and signalling the pressure pro- duced within the container by such a pressure differ- ential; and comparing such signalled pressure against a reference value determinative of whether the con- tainer has penetrated the liquid.

471295

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