Mass flow indicator for metal particles

Details Mass flow indicator for metal particles Mass flow indicator for metal particles

1984-02-22

1985-06-11

Goldstein, Herbert

Electricity: measuring and testing

Magnetic

Fluid material examination

324236, G01N 2774

Patent

active

045231460

ABSTRACT:
A method for determining the size of metal particles which includes the positioning of an inductive circuit within a particle flow path to establish an oscillatory signal, varying the signal frequency to determine at which amplitude a signal is substantially constant, and then recording changes in signal amplitude which correlate to changes in particle size.

REFERENCES:
patent: 2760769 (1956-08-01), Onstad
patent: 3970036 (1976-07-01), Baer et al.
patent: 4195260 (1980-03-01), Sakamoto et al.
Ogren, "Sensor Circuit Utilizing Variable Inductance Input", in I.B.M. Tech. Disclosure Bulletin, vol. 14, #4, 9/71.

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