Method and arrangement for determining the mass of tobacco or th

Details Method and arrangement for determining the mass of tobacco or th Method and arrangement for determining the mass of tobacco or th

1975-02-24

1976-09-07

Wise, Edward J.

Registers

Transfer mechanism

Traveling pawl

324 61R, 73 73, 23515135, G01R 2726, G06F 1520

Patent

active

039795810

ABSTRACT:
The material whose mass is to be determined is transported along a predetermined path. At a measurement station it forms the dielectric of a capacitor which is part of a high-frequency oscillator circuit. The capacitance of the capacitor and the attenuation of the high-frequency oscillator circuit at resonance are measured and the mass of the material, such as tobacco, is automatically calculated by means of an nth degree polynomial whose constants are stored in the computer and whose variables are the signals corresponding to the resonant attenuation and capacitance. The mass of a substance, such as moisture, associated with the tobacco is calculated similarly, but utilizing different constants. The polynomials can be expanded to include temperature terms. The computed mass and moisture values can be utilized, after comparison with suitable reference signals, to control the mass of the material moving along the path as well as the quantity of substances associated therewith (for example, tobacco and mosture).

REFERENCES:
patent: 2767717 (1956-10-01), Schlossmacher
patent: 3320528 (1967-05-01), Esenwein
patent: 3327207 (1967-06-01), Norwich
patent: 3372488 (1968-03-01), Koch et al.
patent: 3392349 (1968-07-01), Bartley
patent: 3482162 (1969-12-01), Wochnowski
patent: 3504280 (1970-03-01), Byrd
patent: 3508435 (1970-04-01), Ivy
patent: 3618368 (1971-11-01), Lesemann
patent: 3684953 (1972-08-01), Grant
patent: 3769581 (1973-10-01), Konig et al.

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