DISCHARGE IRREGULARITY OBSERVATION METHOD, DISCHARGE IRREGULARITY OBSERVATION DEVICE, RESISTANCE MEASURING METHOD, AND RESISTANCE MEASURING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a discharge irregularity observation method for obtaining a member making use of discharge or an electrifying phenomenon by the discharging, while the member is developed on the basis of knowledge obtained by measuring a microscopic electrical property and in the member no irregularity in density or no void occurs.

SOLUTION: A discharge irregularity observation device is provided with a transparent electrode substrate 7 with a semi-transparent or transparent electrode 2 on a surface facing a roller member 1 installed so that an electrode surface can be brought into contact with or separated from the roller member surface. Then, a potential difference is provided between the transparent electrode substrate 7 and a metal core of the roller. Discharge light occurring due to the potential difference provided between the transparent electrode substrate 7 and the roller member 1 is photographed by a photographic device 3 installed on a back side of the transparent electrode substrate and discharge irregularities occurring in the roller member are observed.

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