Moisture measurement control of wood in radio frequency dielectr

Details Moisture measurement control of wood in radio frequency dielectr Moisture measurement control of wood in radio frequency dielectr

1999-06-18

2000-09-26

Leung, Philip H.

Electric heating

Capacitive dielectric heating

With power supply system

219770, 219773, 73 2901, 34254, H05B 650

Patent

active

061245844

ABSTRACT:
A method of determining the moisture content of charge of wood having a moisture content below fiber saturation and being subjected to a Radio Frequency dielectric heating process to the degree required to control the process (e.g., terminate drying) by measuring the wood product package dimensions and monitoring the RF power KW and RF voltage KV being applied to the charge at the electrode(s) and further controlling (i.e., terminating) the process when the KW and KV being applied based on a pre-selected function indicates that the charge has reached a preselected moisture content.

REFERENCES:
patent: 3721013 (1973-03-01), Muller
patent: 3986268 (1976-10-01), Koppelman
patent: 4258240 (1981-03-01), Pless
patent: 4406070 (1983-09-01), Preston
patent: 5641423 (1997-06-01), Bridges et al.

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