Article (Scientific journals)
Design and fabrication of an electrode array sensor for probing the electric potential distribution at the mesoscopic scale in antistatic felts
Boutaayamou, Mohamed; Lemaire, Philippe; Vanderheyden, Benoît et al.
2014In Measurement Science and Technology, 25, p. 075903 (9
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Keywords :
Antistatic felts; antistatic fibers; conduction mechanisms; electric potential distribution; electrode array sensor; nonwoven felts; voltage probe
Abstract :
[en] We present an original voltage probe design for measuring the electric potential distribution at the mesoscopic scale (i.e., 1 mm–1 cm) in antistatic felts. The felts are composed of a mixture of non-conductive and metallic fibers and exhibit complex nonlinear electric behavior—including possibly nonlinearity and hysteresis effects—which may be due to localized electrical or electromechanical phenomena. The sensor consists of an array of 8 × 9 needle electrodes (phgr 160 µm at the shaft and less than phgr 50 µm toward the apex), which are mechanically maintained at fixed relative positions while their tips are inserted inside the fabric of the sample. The interelectrode distance is 1.5 mm and the overall active area is 12 × 12 mm². The electrical insulation resistance for nearest neighbor pairs of electrodes was found to be larger than 860 GΩ, thus making the sensor suitable for measuring antistatic felts with an electric resistance that typically does not exceed a few GΩ. The sensor was successfully used for measuring the distribution of the electric potential in a polyester fabric subjected to voltages of up to 6.2 kV, and in a sample containing 2% in weight of metallic fibers, demonstrating the presence of irreversible changes in that felt sample (i.e., with conductive fibers) at high voltages. It is concluded that the developed probe voltage is a promising technique that could be used for the assessment of the conduction mechanisms in the antistatic materials at the mesoscopic scale.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Boutaayamou, Mohamed ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Exploitation des signaux et images
Lemaire, Philippe;  Centexbel, the Belgian Textile Research Centre > Unit 'Health, Safety and Security'
Vanderheyden, Benoît  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Electronique et microsystèmes
Vanderbemden, Philippe  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Capteurs et systèmes de mesures électriques
Language :
English
Title :
Design and fabrication of an electrode array sensor for probing the electric potential distribution at the mesoscopic scale in antistatic felts
Publication date :
06 June 2014
Journal title :
Measurement Science and Technology
ISSN :
0957-0233
eISSN :
1361-6501
Publisher :
Institute of Physics and the Physical Society, United Kingdom
Volume :
25
Pages :
075903 (9pp)
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
Nouvelle conception de filtres textiles antistatiques NEOCERAT
Funders :
Subvention accordée par la Région Wallonne. Numéro de convention 716683 (NEOCERAT).
Available on ORBi :
since 12 June 2014

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