Determining the dielectric properties of wood

Details Determining the dielectric properties of wood Determining the dielectric properties of wood

G - Physics

01

N

G01N 27/02 (2006.01) F26B 21/06 (2006.01) G01N 33/46 (2006.01)

Patent

CA 2215191

The dielectric properties of wood (12) in a wood-drying kiln (10) is determined by having the wood disposed between electrodes (16), applying a sinusoidal voltage (38) to the electrodes via a resistive element (24), determining the phase angle (.omega.) between the applied voltage (V1) and the voltage (V2) across the electrodes and the magnitude of these voltages, and determining from these values the phase angle and magnitude of the complex impedance between the electrodes.

L'invention concerne un procédé pour déterminer les propriétés diélectriques du bois (12) dans un séchoir à bois (10). Ce procédé consiste à disposer le bois entre des électrodes (16), à appliquer une tension sinusoïdale (38) aux électrodes, via un élément résistant (24), à déterminer l'angle de phase ( omega ) entre la tension appliquée (V1) et la tension (V2) dans les électrodes, et enfin, à déterminer, à partir de ces valeurs, l'angle de phase et l'amplitude de l'impédance complexe entre les électrodes.

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