Device for the determination of the amount of substance or the d

Details Device for the determination of the amount of substance or the d Device for the determination of the amount of substance or the d

1983-02-22

1985-10-29

Levy, Stewart J.

Measuring and testing

Specific gravity or density of liquid or solid

73 377, 73160, 19240, D01H 538, G01N 926

Patent

active

045494282

ABSTRACT:
Device for the determination of the amount of substance or the density of fiber structures, which utilizes the elastic properties of the fiber material. By means of a sphere which is positioned in a conical opening in a duct through which the fibers pass and which presses on the fibers with a part of its surface, a nozzle is throttled, so that the pressure on the nozzle represents a measure for the force on the sphere. This pressure is in a definite relationship to the fiber pressure on the sphere and can be measured with a pressure measuring device and transformed into an electrical signal by means of a normal commercially-available converter. A small groove in the wall of the duct behind the sphere avoids the attachment of fibers between the sphere and the opening.

REFERENCES:
patent: 3752170 (1973-08-01), Murbach
patent: 3822590 (1974-07-01), Tharpe et al.
patent: 3938223 (1976-02-01), Grice
patent: 4121450 (1978-10-01), Zurcher
patent: 4184361 (1980-01-01), Erben

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