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Title:Vpliv temperature termične obdelave na dielektrične lastnosti lesa
Authors:ID Jošt, Matej (Author)
ID Resnik, Jože (Author)
ID Šernek, Milan (Author)
Files:.pdf PDF - Presentation file, download (417,63 KB)
MD5: 30033350B65B76715F5BDE925B9ED854
PID: 20.500.12556/dirros/1cb324f7-e10e-458b-801b-2e6e53811a50
 
Language:Slovenian
Typology:1.01 - Original Scientific Article
Organization:Logo SciVie - Slovenian Forestry Institute
Abstract:V prispevku so predstavljeni rezultati vpliva temperature termične obdelave nadielektrične lastnosti bukovine (Fagus sylvatica L.) in smrekovine (Picea abies L.). V eksperimentu smo uporabili diskaste preskušance premera 45 mm in debeline 5 mm, ki smo jih termično obdelali pri sedmih različnih temperaturah (50 do 200 °C). Dielektrične lastnosti preskušancev smo ugotavljali pri devetih različnih frekvencah (2 do 10 MHz). Vse meritve smo opravili pri sobnitemperaturi z impedančnim analizatorjem HP 4191A RF po metodi z mikrometrom, na katerega sta bili pritrjeni diskasti aluminijasti elektrodi. Na osnovi dobljenih rezultatov smo ugotovili, da se dielektrična vrednost lesain izgubni kot zmanjšujeta z naraščajočo temperaturo obdelave, če je le-tavišja od 100 °C. Dielektrična vrednost lesa je nižja pri večji izgubi mase preskušanca.
Keywords:dielektrične lastnosti, temperatura, segrevanje, les, visoka frekvenca
Publication status:Published
Publication version:Version of Record
Year of publishing:2004
Number of pages:str. 123-135
Numbering:Vol. 73
PID:20.500.12556/DiRROS-7601 New window
UDC:630*812.8+176.1 Fagus sylvatica L.:174 Picea abies L.(045)
ISSN on article:0351-3114
URN:URN:NBN:SI:doc-ZN0BRN8I
COBISS.SI-ID:1268902 New window
Publication date in DiRROS:12.07.2017
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Downloads:2256
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Record is a part of a journal

Title:Zbornik gozdarstva in lesarstva : forest and wood science & technology
Shortened title:Zb. gozd. lesar.
Publisher:Gozdarski inštitut Slovenije, Biotehniška fakulteta, Oddelek za gozdarstvo in obnovljive gozdne vire, Biotehniška fakulteta, Oddelek za lesarstvo
ISSN:0351-3114
COBISS.SI-ID:6206978 New window

Secondary language

Language:Undetermined
Title:Influence of thermal treatment temperature on the dielectric properties of wood
Abstract:The effect of thermal treatment temperature on the dielectric properties of beech (Fagus sylvatica L.) and spruce (Picea abies L.) was investigated. Wood disks with a diameter of 45 mm and a thickness of 5 mm were thermally treated at seven different temperatures (50 to 200 °C) before measurements were performed. Dielectric properties of the wood disks were measured at nine various frequencies (2 to 10 MHz) at room temperature. The impedance analyzer HP 4191A RF and the micrometer screw method with circular aluminum electrodes were used. The results indicate that the dielectric constant and the loss tangent of wood decrease as the temperature of the thermal treatment increases, provided the temperature is higher than 100 °C. The dielectric constant also decreases with increasing weight loss of the specimen.
Keywords:dielectric properties, temperature, heating, wood, high-frequency


Collection

This document is a part of these collections:
  1. Acta Silvae et Ligni

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