Rotational viscosity measurement apparatus

Details Rotational viscosity measurement apparatus Rotational viscosity measurement apparatus

1998-08-10

1999-11-23

Williams, Hezron

Measuring and testing

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

Viscosity

73 5434, G01N 1114, G01N 3348, H01J 516

Patent

active

059879700

ABSTRACT:
A rotational viscometer is disclosed for measuring the viscosity of a rotating fluid. The viscometer includes a measurement disk that is positioned within the rotating fluid and is interconnected via a shaft with a measurement arm mounted within a housing. A light source is mounted within the housing and emits a beam of light onto one or more light receivers. The light receivers provide an output signal that is a function of the amount of light received. An end of the measurement arm is movably disposed between the light source and the light receivers. Pivoting of the measurement arm controls the amount of light received by the light receivers. A signal processor receives the output signals from the light receivers and determines a restorative signal therefrom. The restorative signal is provided to a balance coil which is located adjacent a permanent magnet. The balance coil generates an electromagnetic field as a, function of the restorative signal. An adjustment shaft has one end engaged with the balance coil and the other end attached to the measurement arm. The generation of an electromagnetic field in the balance coil causes the adjustment shaft to translate resulting in pivoting of the measurement arm about its center of rotation in an opposite direction from its initial displacement. An output device receives the restorative signal and determines the viscosity of the fluid therefrom.

REFERENCES:
patent: 1192861 (1916-08-01), Carmichael et al.
patent: 1236706 (1917-08-01), Grosvenor
patent: 1281042 (1918-10-01), MacMichael
patent: 1334856 (1920-03-01), Hayes et al.
patent: 1817739 (1931-08-01), Dintilhac
patent: 1930629 (1933-10-01), Stephens
patent: 2239726 (1941-04-01), Martin
patent: 2354299 (1944-07-01), Bays
patent: 2382979 (1945-08-01), Demb
patent: 2638779 (1953-05-01), Wilson
patent: 2657572 (1953-11-01), Fann
patent: 2713790 (1955-07-01), Barber et al.
patent: 2977790 (1961-04-01), Dubsky et al.
patent: 3126735 (1964-03-01), Vogtle et al.
patent: 3162038 (1964-12-01), Roberson et al.
patent: 3212319 (1965-10-01), Levy et al.
patent: 3465575 (1969-09-01), Kepes
patent: 3545257 (1970-12-01), Zemp et al.
patent: 3667286 (1972-06-01), Kaufman et al.
patent: 3722262 (1973-03-01), Gilinson, Jr. et al.
patent: 3803903 (1974-04-01), Lin
patent: 3875791 (1975-04-01), Fitzgerald et al.
patent: 3935726 (1976-02-01), Heinz
patent: 3935729 (1976-02-01), McCarthy
patent: 3939690 (1976-02-01), Kuss et al.
patent: 4045999 (1977-09-01), Palmer
patent: 4077252 (1978-03-01), Stutz et al.
patent: 4175425 (1979-11-01), Brookfield
patent: 4181023 (1980-01-01), Clamroth et al.
patent: 4352287 (1982-10-01), Orth et al.
patent: 4488427 (1984-12-01), Matusik et al.
patent: 4566181 (1986-01-01), Matusik et al.
patent: 4726220 (1988-02-01), Feier et al.
patent: 5120951 (1992-06-01), Small
patent: 5167143 (1992-12-01), Brookfield
patent: 5187975 (1993-02-01), Chiba et al.
patent: 5269174 (1993-12-01), Chiba et al.
patent: 5365777 (1994-11-01), Layton
patent: 5483840 (1996-01-01), Chang et al.
patent: 5503003 (1996-04-01), Brookfield
patent: 5513517 (1996-05-01), Van Meter et al.
patent: 5531102 (1996-07-01), Brookfield et al.
patent: 5535619 (1996-07-01), Brookfield
patent: 5763766 (1998-06-01), Robinson
patent: B14448061 (1995-11-01), Brookfield

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