The influence of the moisture content on the electrical resistance of two types of cork stoppers

被引:2
作者
Fernandez-Golfin, J. [1 ]
Conde Garcia, M. [1 ,2 ]
Gonzalez Hernandez, F. [1 ]
Conde Garcia, M. [1 ,2 ]
Fernandez-Golfin, J. J. [3 ]
Baonza Merino, M. V. [1 ]
Garcia Esteban, L. [3 ]
Gonzalez Adrados, J. R. [1 ]
机构
[1] CIFOR INIA, Dept Prod Forestales, Madrid 28080, Spain
[2] Univ Cordoba, Escuela Tecn Super Ingenieros Agron & Montes, E-14071 Cordoba, Spain
[3] Univ Politecn Madrid, Dept Ingn Forestal, Escuela Tecn Super Ingenieros Montes, E-28040 Madrid, Spain
关键词
cork; electrical resistance; moisture content; CONDUCTIVITY;
D O I
10.5424/fs/2010192-01313
中图分类号
S7 [林业];
学科分类号
0829 ; 0907 ;
摘要
The relationship between the log of the electrical resistance (ER, measured using pin electrodes) and the moisture content (MC) have not been reported in any form of cork. That is important for the cork stoppers industry because It should help in the design and verification of more precise devices for measuring cork moisture content. In this study, using linear regression techniques, different regression models of the type log(Log(R) + 1) = axh + b were derived to describe the relationship ERMC, that was measured using pin electrodes on two types of cork stoppers [natural (N) and agglomerate(AG)] The results obtained show that in the models proposed, the moisture content of AG cork stoppers can be estimated with an error of +/- 0.3%, while that of N stoppers can be estimated with an error of 0 5% Neither the geographical origin of the N corks nor the surface treatment to which the AG corks were subjected significantly affected the proposed models. Therefore, the moisture content of cork stoppers could be measured at the industrial scale using electrical resistance-type moisture meters.
引用
收藏
页码:184 / 188
页数:5
相关论文
共 9 条
  • [1] Forsen Holger., 2000, Accuracy and functionality of hand held wood moisture content meters
  • [2] Gil L, 1998, HOLZ ROH WERKST, V56, P355, DOI 10.1007/s001070050332
  • [3] GONZALEZ A, 1994, INVEST AGRAR-SIST R, V3, P199
  • [4] Influence of humidity on the electrical charging properties of cork agglomerates
    Lanca, M. C.
    Wirges, W.
    Neagu, E. R.
    Gerhard, R.
    Marat-Mendes, J.
    [J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 2007, 353 (47-51) : 4501 - 4505
  • [5] Lança MC, 2006, MATER SCI FORUM, V514-516, P940, DOI 10.4028/www.scientific.net/MSF.514-516.940
  • [6] The influence of water on direct current conductivity of cork
    Marat-Mendes, JN
    Neagu, ER
    [J]. ADVANCED MATERIALS FORUM II, 2004, 455-456 : 446 - 449
  • [7] The study of electrical conductivity of cork
    Marat-Mendes, JN
    Neagu, ER
    [J]. FERROELECTRICS, 2003, 294 : 123 - 131
  • [8] Muehlbacher J, 2009, FOREST PROD J, V59, P58
  • [9] Samuelsson A., 1990, RESISTANSKURVOR ELEK