Apparatus for fast determination of the rheological properties o

Details Apparatus for fast determination of the rheological properties o Apparatus for fast determination of the rheological properties o

1986-07-17

1987-07-21

Levy, Stewart J.

Measuring and testing

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

Viscosity

G01N 1108

Patent

active

046809589

ABSTRACT:
Apparatus composed of a control and monitoring unit 1, a thermostated cylinder 2 receiving a measured quantity of material to be evaluated, a plunger 3 sliding in the cylinder 2, an exchanger system enabling the cylinder 2 to be equipped with a suitable die 6 for the measurement to be carried out, a stepping-control motor 7 ensuring a monitored travel of the plunger 3, a force-sensor 9 yielding a signal as a function of the force applied to the plunger 3, and an electronic microprocessor system monitoring the stepping motor 7 as a function of the position of the piston and/or of the signal emitted by the force-sensor 9 at the end of the time assigned to the thermal conditioning of the measured quantity to be evaluated, the plunger 3 is situated at a distance from the die 6 permitting the measurement and acts for 10 to 180 seconds on the measured quantity according to a parameter of the speed of travel of the plunger or of the applied force specified by the measurement to be carried out.

REFERENCES:
patent: T869014 (1969-07-01), Gray, Jr. et al.
patent: 2780096 (1957-02-01), Noble et al.
patent: 3270553 (1964-07-01), Ballman et al.
patent: 3526126 (1968-09-01), Wilchinsky et al.
patent: 4229970 (1980-10-01), Barker et al.
patent: 4333336 (1980-05-01), Myerholtz et al.
patent: 4425790 (1981-12-01), Bice et al.
patent: 4449395 (1982-04-01), Kurtz et al.

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