Delay line microwave moisture measuring apparatus

Details Delay line microwave moisture measuring apparatus Delay line microwave moisture measuring apparatus

1979-12-05

1982-03-09

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

G01R 2704

Patent

active

043191851

ABSTRACT:
Microwave moisture measuring apparatus in which a plurality of transmitting antennas direct microwave radiation through individual portions of a moisture-containing sheet material to respective receiving antennas coupled to a common detector. A microwave pulse is provided to one end of a transmission line containing delay elements to provide successively delayed pulses to the transmitting antennas. The delayed pulses are separately received by the detector and analyzed to permit individual measurement of the moisture content of the sheet material portions.

REFERENCES:
patent: 3155898 (1964-11-01), Chope
patent: 3534260 (1970-10-01), Walker
patent: 3815019 (1974-06-01), Wiles
patent: 3818333 (1974-06-01), Walker
patent: 3851244 (1974-11-01), Mounce
patent: 4123702 (1978-10-01), Kinanen et al.
patent: 4211970 (1980-07-01), Fitzky

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