Method and apparatus for continuously measuring a flow rate of a

Details Method and apparatus for continuously measuring a flow rate of a Method and apparatus for continuously measuring a flow rate of a

1988-05-03

1989-02-21

Orsino, Joseph A.

Measuring and testing

Volume or rate of flow

Mass flow by imparting angular or transverse momentum to the...

7386137, 222 71, G01F 182

Patent

active

048054623

ABSTRACT:
In a method for continuously determining the delivery rate of a stream or flow of loose bulk material and/or for continuously dosing such material, the loose material is caused to travel along part of a circular path and is then removed from that circular path after travelling at least around a portion of a circle. The centrifugal force exerted by the loose material on the axis of rotation is measured and used to deterine the delivery rate. The centrifugal force is measured by sensing an excursion of a rotational axis of a measuring wheel caused by the centrifugal force exerted by the loose material continuously fed onto and removed from the rotating measuring wheel such that the material travels through a semicircle. Before being fed onto the measuring wheel, the material may be accelerated to the wheel's velocity. The centrifugal force resulting on the wheel axis is measured. An apparatus for carrying out this method includes appropriate drives for the measuring wheel, and arrangements for accelerating, feeding, and discharging the material, as well as a load cell, for example, for measuring the centrifugal force.

REFERENCES:
patent: 2714310 (1985-08-01), Jennings
patent: 4528848 (1985-07-01), Hafner
patent: 4700578 (1987-10-01), Fassbinder

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