A MICROWAVE METHOD FOR ONLINE DETERMINATION OF BULK-DENSITY AND MOISTURE-CONTENT OF PARTICULATE MATERIALS

Authors
TRABELSI S KRASZEWSKI AW NELSON SO
Citation
S. Trabelsi et al., A MICROWAVE METHOD FOR ONLINE DETERMINATION OF BULK-DENSITY AND MOISTURE-CONTENT OF PARTICULATE MATERIALS, IEEE transactions on instrumentation and measurement, 47(1), 1998, pp. 127-132
Citations number
16
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
IEEE transactions on instrumentation and measurement → ACNP
ISSN journal
00189456
Volume
47
Issue
1
Year of publication
1998
Pages
127 - 132
Database
ISI
SICI code
0018-9456(1998)47:1<127:AMMFOD>2.0.ZU;2-K
Abstract
A new method for simultaneous and independent on-line determination of bulk density and moisture content in particulate materials by measure ments of the relative complex permittivity is proposed, The bulk densi ty is determined, based on a representation in the complex plane of re lative complex permittivity normalized to bulk density, For moisture c ontent determination, a new density-independent function, exclusively dependent on the dielectric properties, is used. Results obtained from measurements on wheat over broad ranges of microwave frequencies, tem peratures, densities, and moisture contents are presented.