Apparatus for measuring a percentage of moisture and weighing of

Details Apparatus for measuring a percentage of moisture and weighing of Apparatus for measuring a percentage of moisture and weighing of

1979-10-26

1981-11-03

Yasich, Daniel M.

Measuring and testing

Moisture content or absorption characteristic of material

177210FP, 324 5856, 340602, 340665, G01G 700, G01N 2706, G01R 2700

Patent

active

042978742

ABSTRACT:
An apparatus for measuring the percentage of moisture content and weight of a sheet-like object has a pair of metal boxy sections for providing a cavity resonator with openings, defining a gap interposed therebetween. In measurement, the sheet-like object is inserted in the gap. The percentage of moisture content of the sheet-like object is measured by detecting the variable resonant voltage of a microwave signal introduced into the cavity resonator. Weighing of the sheet-like object is measured detecting the variable resonant frequency of the microwave signal introduced.

REFERENCES:
patent: 3260642 (1966-07-01), Canter, Jr.
patent: 3470343 (1969-09-01), Bilbrough
patent: 3696292 (1972-10-01), Busker et al.
patent: 3737770 (1973-06-01), Masson et al.
patent: 3739263 (1973-06-01), Henoch
patent: 3981082 (1976-09-01), Massey
patent: 4123702 (1978-10-01), Kinanen et al.
Publ. "Application of On-Line Microwave Moisture Gauge at Wet End", Richard A. Reese, pp. 54-57, Paper Trade Journal 9/11/72.

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