Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Viscosity
Patent
1985-09-23
1986-07-01
Buczinski, S. C.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Viscosity
G01N 1104
Patent
active
H00000930
ABSTRACT:
An apparatus and method for measuring elongational viscosity of a test fl comprises extruding the test fluid through a capillary downwardly into a host fluid having a lower density than the test fluid and being immiscible with the test fluid. This formed a spherical drop at the lower open end of the capillary tube which grew until it fell away from the tube forming an elongated ligament. The elongated ligament eventually breaks. The test fluid drop and ligament are photographed using a movie or video camera and the results are analyzed to determine the kinetics of the drop and ligament as it is formed, grows and falls through the host fluid.
REFERENCES:
patent: 3832886 (1974-09-01), Pliskin
patent: 4454751 (1984-06-01), Matta et al.
Harris Jeffrey L.
Matta Joseph E.
Buczinski S. C.
Card, Jr. Harold H.
Lane Anthony T.
Sachs Michael C.
The United States of America as represented by the Secretary of
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