๐”– Bobbio Scriptorium
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Dielectric properties of softwood species at microwave frequencies

โœ Scribed by E. Peyskens; M. Pourcq; M. Stevens; J. Schalck

Publisher
Springer
Year
1984
Tongue
English
Weight
694 KB
Volume
18
Category
Article
ISSN
0043-7719

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โœฆ Synopsis

Dielectric measurements at 3 GHz were made for three softwoods, European pine, spruce and hemlock. The longitudinal, radial and tangential grain directions of the wood were considered as well as moisture contents ranging from 6% to 35%. The positive effect of the moisture content on the loss factor d' illustrates the selectivity of microwave drying techniques, while the observations also show that the longitudinal dielectric properties are substantially higher than the transverse ones. The specific effect of the wood species on the dielectric behaviour has to be ascribed mainly to those intrinsic characteristics of the species which influence the sorptive capacity of the wood.

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