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Titolo:
Wood moisture gradient analysis by electrical impedance spectroscopy
Autore:
Tiitta, M; Savolainen, T; Olkkonen, H; Kanko, T;
Indirizzi:
Univ Kuopio, Dept Appl Phys, FIN-70211 Kuopio, Finland Univ Kuopio Kuopio Finland FIN-70211 ppl Phys, FIN-70211 Kuopio, Finland Tech Res Ctr Finland, FIN-02044 VTT, Finland Tech Res Ctr Finland VTT Finland FIN-02044 nland, FIN-02044 VTT, Finland
Titolo Testata:
HOLZFORSCHUNG
fascicolo: 1, volume: 53, anno: 1999,
pagine: 68 - 76
SICI:
0018-3830(1999)53:1<68:WMGABE>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
DENSITY;
Keywords:
electrical impedance spectroscopy; wood moisture content; frequency analysis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Tiitta, M Univ Kuopio, Dept Appl Phys, POB 1627, FIN-70211 Kuopio, FinlandUniv Kuopio POB 1627 Kuopio Finland FIN-70211 1 Kuopio, Finland
Citazione:
M. Tiitta et al., "Wood moisture gradient analysis by electrical impedance spectroscopy", HOLZFORSCH, 53(1), 1999, pp. 68-76

Abstract

An electrical impedance Frequency spectrum (30 Hz to 1 MHz) was measured in wood specimens with uniform, absorption and desorption transverse moisture content (MC) gradient. Parallel plate single sided capacitive and conductive electrodes were used. Capacitance, conductance and impedance locus analyses were included in the study, the desorption and absorption moisture gradients (MG) were estimated using frequency based analysis. This study suggests that the transverse MG can be estimated using impedance spectroscopy analysis. Both used electrode types and all the studied methods gave similar results which shows that frequency based analysis can be used. It was not possible to achieve very good accuracy when estimating MG using pure conductive or capacitance measurement method. The electrical distributed network circuit modelling was found to be the most promising method in estimation oftransverse MG.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 12:51:34