Vibrating needle viscosity meter

Details Vibrating needle viscosity meter Vibrating needle viscosity meter

1984-04-09

1985-12-17

Levy, Stewart J.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Viscosity

G01N 1116

Patent

active

045585881

ABSTRACT:
A viscosity meter comprises a straight metal rod having an end portion immersed in a fluid whose viscosity is determined. An intermediate portion of the rod is secured against movement and the other end portion is driven into transversal flexure oscillation by a coil. The coil is fed with an A.C. current at the natural frequency of the rod and the magnitude of the oscillation is measured.

REFERENCES:
patent: 3585457 (1971-06-01), Zaander
patent: 3710614 (1973-01-01), Oppliger
patent: 3903732 (1975-09-01), Rork et al.
patent: 4166381 (1979-09-01), Woo

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