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In the paper, mathematical models for determination of resistivity of thin antistatic coatings are presented. The models are combination of the classic four-point method and the method of images. Models 2D and 3D are taken into considerations. In both cases are analyzed the parameters of measuring system and coating layer for example: the relations between the sample size and the distance between...
Non contacting measurement of surface resistivity has been investigated by simultaneous applications of corona charging to a test sample and measuring surface potential around the charged spot. The corona charging electrodes are consisted of a grounded plane electrode with a circular hole and a needle electrode penetrating the plane electrode at the center of the hole, defined as phi type electrodes...
The purpose of this paper is to describe a technique for characterizing near steady state charge transport in thin film dielectric materials under various well controlled ambient conditions. This is important because failure to achieve perfect insulation limits the performance of several sorts of devices. For example, materials used to separate layers of hybrid circuits become lossy at high ambient...
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