Complex dielectric properties of the sapwood of aspen, white birch, yellow birch, and sugar maple

被引：38
|
作者：
Koubaa, Ahmed [1 ]
Perre, Patrick [2 ]
Hutcheon, Ron M. [3 ]
Lessard, Julie [4 ]
机构：
[1] Univ Quebec, Chair Rech Canada Valorisat Caracterisat & Transf, Rouyn Noranda, PQ J9X 5E4, Canada
[2] LERMAB, INRA, AgroParisTech, Nancy, France
[3] Microwave Properties, North, ON, Canada
[4] SEREX, Quebec City, PQ, Canada
来源：
DRYING TECHNOLOGY | 2008年 / 26卷 / 05期
关键词：
dielectric properties; drying; microwave frequency; moisture content; wood;
D O I：
10.1080/07373930801944762
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The dielectric properties of four Canadian eastern wood species were measured as a function of moisture content and temperature, at frequencies between 0.4 and 2.47GHz using the cavity perturbation technique. The temperature was varied from-20 to 58 degrees C and moisture content from 40 to 136%. Dielectric properties varied with moisture content, wood temperature, and microwave frequency. However, the influence of moisture content and microwave frequency overshadowed the influence of wood species and wood temperature. The dependencies were established for the selected species and discrepancies are discussed, namely concerning their implication when used in wood industry (nondestructive testing, heating, and drying).
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页码：568 / 578
页数：11
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