Measurement of the moisture content with a cylindrical resonating cavity in TM010 mode

Authors
Bourdel, E Pasquet, D Denorme, P Roussel, A
Citation
E. Bourdel et al., Measurement of the moisture content with a cylindrical resonating cavity in TM010 mode, IEEE INSTR, 49(5), 2000, pp. 1023-1028
Citations number
6
Categorie Soggetti
Instrumentation & Measurement
Journal title
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
ISSN journal
00189456 → ACNP
Volume
49
Issue
5
Year of publication
2000
Pages
1023 - 1028
Database
ISI
SICI code
0018-9456(200010)49:5<1023:MOTMCW>2.0.ZU;2-E
Abstract
A new resonating mode has been used in a cylindrical cavity to measure the moisture content and the specific mass of cigarettes. A simple theoretic ca lculation gives the relation between the sample complex permittivity and th e characteristics of the cavity, A model is proposed to extract the moistur e content and the specific mass from the complex permittivity, An experimen tal setup has been demonstrated. It uses a servo-controlled oscillator. Thi s setup is ready to be tried on a production machine.