Method and apparatus for the continuous measuring of bulk materi

Details Method and apparatus for the continuous measuring of bulk materi Method and apparatus for the continuous measuring of bulk materi

1987-09-09

1989-04-18

Levy, Stewart J.

Measuring and testing

Volume or rate of flow

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

G01F 180

Patent

active

048215813

ABSTRACT:
The quantity of a flow of bulk material passing over a measuring wheel is continuously measured by measuring the load r.p.m. of the wheel or of a motor driving the wheel and the power output torque of the motor. The resulting r.p.m. and torque values are used for calculating the quantity. Interfering influences are substantially eliminated by using a correction value in the calculation. The correction value is based on the inertia moment of all rotating components of the system and on variations in the load r.p.m. Load r.p.m. and power output torque measuring devices provide data to a microprocessor for the calculations for achieving a high measuring precision even when the r.p.m. varies.

REFERENCES:
patent: 2771773 (1956-11-01), Wallace
patent: 2775125 (1956-12-01), Peaceman
patent: 2832218 (1958-04-01), White
patent: 3331244 (1967-07-01), Henderson
patent: 4700578 (1987-10-01), Fassbinder

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