Electrical properties of flat textile material as inhomegeneous and anisotropic structure

Abstract

The main purpose of the study was to present the basic problems of determining surface resistance of electroconductive fabric. The attention was paid to the arrangement of electrodes on a sample. Analysis of the contact resistance between the measuring electrode and the fibrous substrate was conducted. The multi-variant research of a textile sample has shown that the electrodes arrangement is of significance for sample resistance measurement results. The arrangement of four electrodes on the edge of the sample allows the assessment of electroconductive properties of whole textile sample surface. It was found that the woven fabric sample is not homegeneous and anisotropic. Research of textile material with the coaxial electrode arrangement enable the local values of material resistance to be assessed. Results of multi-variant research have provided important knowledge about the textile material structure and its properties.

Resistivity behavior of leather after electro-conductive treatment

“…Moreover, measuring surface resistance of flat shape textile samples is difficult because of current flowing into the shape cannot be isolated only in the surface, but a part of it can penetrate through the volume. Numerous methods and standards can be found in literature [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. For example, two and four probe electrical resistance measurement methods, where the most accurate and widely used methods are four probe placements.…”

Mathematical Model for Predicting the Resistivity of an Electroconductive Woven Structure

“…Electroconductive properties of woven and knitted fabrics are modeled using the equivalent resistance schemes in particular. [12][13][14][15][16] The fabric is seen from an electrical point of view as an electrical circuit composed of connected resistors and a battery. Yarns are ideal resistors of known resistance.…”

Determination of Fabric Surface Resistance by Van Der Pauw Method in Case of Contacts Distant from the Sample Edge

“…It has been observed that electrodes should not be too close to the edge of the sample that the error will not be introduced [3,15]. To avoid this, additional measurements need to be performed.…”

“…To avoid this, additional measurements need to be performed. A table with four holes drilled was prepared allowing the electrodes to fall freely under their weight onto the textile material [15]. This table allowed electrodes to be arranged in the shape of a square with side of 20 mm, 40 mm and 60 mm (Figure 3).…”

“…The effect of electrode placement on resistance measurement was investigated [8,10,14]. In the case of the woven fabrics, the contacts should not be too close to the boundaries of the sample because errors can be introduced [3,15]. In this paper, a solution for the problem is proposed.…”