飛粉末による絶縁物の帯電現象

概要

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Electrification on several kinds of insulators when powder is sprayed on them and electrification on rotating disc insulators when powder falls on them have been experimentally studied. Kinds of powder used are sulphur, bicarbonate of soda, cement, zinc oxide, kaolin, cornstarch, flour, etc. Insulators used are ebonite, bakelite, fiber, glass, etc. As electrification changes by many factors, such as pressure with which powder strikes the insulator, temperature of the insulator, amount of powder, and humidity of air, we have made experiment, taking those facors into consideration. From many combinations and powders, electrification order has been found about powders. Also we have found temperature effect is quite remarkable in ebonite.　This is the second report of the study on electrification by flying powder, the first being ”Electrification on metals by flying powder”. (M.TAKADA and S.SHODA :J.I.E.E.J., Nov.,1956)
山形大学の論文
1959-02-28