Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Gelling or coagulation
Patent
1991-09-26
1993-05-18
Williams, Hezron E.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Gelling or coagulation
73 5425, G01N 1116
Patent
active
052110540
ABSTRACT:
A viscosity measuring system comprises a cell containing gelable liquid and a piezoelectric resonator mounted in the cell. The piezoelectric resonator has a prescribed characteristic, such as electrical resistance or resonant frequency, which varies in accordance with the gelating of the liquid. Solid particles suspended in the liquid are deposited on the piezoelectric resonator during gelating of the liquid to amplify the prescribed resonator characteristic. A measuring circuit measures the variation of the resonator characteristic to thereby determine the gelation time of the liquid.
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Karube Isao
Muramatsu Hiroshi
Adams Bruce L.
Brock Michael
Seiko Instruments Inc.
Wilks Van C.
Williams Hezron E.
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