|
|||||
|
|
Modeling of four-electrode system to determine the resistance of antistatic coatings – Optimizing the size of the measurement area |
|
| Institution: | 1. School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, PR China;2. Material Corrosion and Protection Key Laboratory of Sichuan province, Zigong 643000, PR China;3. College of Physics and Technology Engineering, Guangxi University, Nanning 530004, PR China |
| Abstract: | In the paper, mathematical models for determination of resistivity of thin antistatic coatings are presented. The models use the four-points method and the method of images. The relations between the sample size and the distance between the electrode set and the edge of the sample were analyzed. It was found that the distance between the electrode set and the object edge should be at least 5 times greater than the electrode spacing to allow us using much simpler formulas for infinite flat object with measurement uncertainty below 5%. The correctness of theoretical considerations was verified experimentally. |
| Keywords: | Anti-electrostatic coatings Four-electrode system Resistivity measurements Van der Pauw method |
| 本文献已被 ScienceDirect 等数据库收录！ | |