journal article·1996-01

Feasibility Study of the Microwave Two-Polarized Forward-Scattering Measurement

A.P. Toropainen

Publisher page

Abstract

Limitations of a microwave free-space method based on two-polarized forward scattering are discussed. The method can be used e.g. to measure the average volume of the inclusions of a granular material in the Rayleigh-region. The minimum and the maximum thicknesses of the measured material are determined by the complex permittivity, the shape and the number density of the inclusions of the material, the measurement frequency and the properties of the measurement equipment. Theoretical background of the method is presented. The measurable thickness range of several common granular materials with typical properties, calculated on the basis of the theory have been tabulated.
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Research context

OpenAlex topics: Soil Moisture and Remote Sensing · Microwave and Dielectric Measurement Techniques · Microwave Engineering and Waveguides

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References (3)

Show source-provided references
1. Torgovnikov, G.I. 1992. Dielectric Properties of Wood and Wood-Based Materials. Springer-Verlag, Berlin.10.1007/978-3-642-77453-9 ↗
2. Toropainen, A. 1994. Set-up for measuring changes in the average size of wooden chips by microwave scattering. Proc. 24th European Microwave Conference, Cannes, France, pp. 1203–1208.
3. von Hippel, A.R. 1954. Dielectric Materials and Applications. The M.I.T. Press, Cambridge, MA.