Dry flow sensor with a linear force transducer

Details Dry flow sensor with a linear force transducer Dry flow sensor with a linear force transducer

1983-03-28

1985-10-01

Rowland, James L.

Measuring and testing

Volume or rate of flow

By measuring thrust or drag forces

7386261, G01F 130, G01L 108

Patent

active

045438358

ABSTRACT:
A linear force transducer includes an inclined plate mounted in a chute to be impacted by a flow of granular material, the plate being supported by one or more leaf springs from the chute. An actuator rod is mounted to the plate and extends to a servo mechanism which generates a force to resist deflection of the plate, the actuator rod being supported by a pair of spaced leaf springs. The servo mechanism includes an electromagnetic force generator to apply a force to the actuator rod, with an electronic circuit to produce an electrical current in response to a force applied to the inclined plate to energize the electromagnetic force generator.

REFERENCES:
patent: 2571863 (1951-10-01), Godsey
patent: 2605638 (1952-08-01), Pearson
patent: 3138955 (1964-06-01), Uttley
patent: 3372579 (1968-03-01), Hobel et al.
patent: 3530714 (1970-09-01), Akeley
patent: 3640135 (1972-02-01), Tomiyasu et al.
patent: 3680357 (1972-08-01), Clusener
patent: 4063456 (1977-12-01), Jonkers
patent: 4067238 (1978-01-01), Oetiker
patent: 4238956 (1980-12-01), Sniezek et al.
patent: 4440029 (1984-04-01), Tomiyasu et al.

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