Measurements of the Volume and Surface Resistance of Textile Materials
Research and development
Author:
- Kacprzyk Ryszard
Institute of Electrical Engineering Fundamentals, Wrocław University of Technology, Wrocław, Poland
 Full text | Abstract: A lot of standards describe resistance and resistivity measurement methods appropriate for a particular material or product. In the case of textile materials, some evolution has occurred in both the definitions and measurement techniques in the sphere of resistance and resistivity measurements. Some standards outline a two-electrode measurement system for surface resistance. The sole volume nature of conduction current is assumed to appear in textile materials. This assumption leads to a specific relation between the volume Rv2 and “surface” resistances Rs (Rv1). In this study, it was also shown that in the case of standard electrodes, the parameter (Rv1/Rv2) h2 (where h is the sample thickness) should be constant. The value of this parameter, determined experimentally, was found to be constant for fabrics with a volume resistivity that changed over three orders of magnitude. However, the parameter value was much lower in comparison to that predicted theoretically. The phenomenon observed was explained by the influence of additional contact resistance appearing between the sample surface and the rigid electrodes, as well as by the anisotropy of resistivity. |
Tags: resistance measurements, volume resistance, surface resistance
Citation: Kacprzyk R.; Measurements of the Volume and Surface Resistance of Textile Materials. FIBRES & TEXTILES in Eastern Europe 2011, Vol. 19, No. 1 (84) pp. 47-49.