Measurement of the Dielectric Properties of Sawdust Between 0.5 and 15 GHz

Paz, Ana (author): Mälardalens högskola,Akademin för hållbar samhälls- och teknikutveckling,MERO

Trabelsi, Samir (author): ARS, USDA, Richard B Russell Agr Res Ctr, Athens, GA 30605 USA

Nelson, Stuart (author): ARS, USDA, Richard B Russell Agr Res Ctr, Athens, GA 30605 USA

Thorin, Eva (author): Mälardalens högskola,Akademin för hållbar samhälls- och teknikutveckling

(creator_code:org_t)

2011
2011
English.
In: IEEE Transactions on Instrumentation and Measurement. - 0018-9456 .- 1557-9662. ; 60:10, s. 3384-3390

Related links:: https://urn.kb.se/re...; show more...; https://doi.org/10.1...; show less...

Abstract Subject headings

The aim of this paper was to measure the broadband dielectric properties of sawdust. Knowledge of dielectric properties is important in improving understanding of a material and can lead to the development of methods for determining physical properties such as moisture and salt content. The broadband dielectric properties of sawdust were measured with an open-ended coaxial-line dielectric probe. Measurements on granular materials with the dielectric probe are dependent on the density of the measured region, which may differ from the average density of the sample. In this paper, a method was developed for determining the actual density for measurements with the dielectric probe. It consists of measurement of the dielectric constant with a different method (in this instance, a free-space transmission method) at a frequency common to both methods and identifying a relationship between the measured dielectric constant and density. The dielectric properties of sawdust samples with moisture content levels between 13% and 45% are presented for frequencies between 0.5 and 15 GHz.

By the author/editor: Paz, Ana; Trabelsi, Samir; Nelson, Stuart; Thorin, Eva

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