Method and apparatus for examining and determining the viscosity of a liquid in a container
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United States of America Patent
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Dec 14, 1993
Issued Date -
N/A
app pub date -
Jul 27, 1992
filing date -
Dec 26, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention presents a method and an apparatus for examining and determining the viscosity of a liquid sealed in a container by applying a centrifugal force to the container, detecting a change in the surface form of said liquid by the means of a sensor, and measuring either a lapse of time from the application of centrifugal force to the time when the output voltage of the sensor reaches a predetermined level or a voltage output of the sensor upon a predetermined lapse of time from the application of a centrifugal force, thereby examining and determining the viscosity of the liquid to find out whether there is any quality change in the liquid without destroying the container.
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