Analysis of the behaviour of charged particles in electrical relay devices

Masami Iida, Katsuaki Koshimura, Masahiro Kaneko, Masato Saeki

Research output: Contribution to journalConference articlepeer-review


This paper presents the results of analytical and experimental studies on the motion of a charged foreign object in an electrical relay. In the numerical approach, the motion of the lower and upper electrodes was solved by the finite element method. The colliding force between the foreign object and the electrodes was calculated by Hertzian contact theory. The electric field strength in the electrical relay was solved by the finite difference method. In the experimental approach, a spherical particle with a radius of 0.097mm made of polystyrene divinylbenzene was used as the foreign object. The validity of the analytical method was examined by comparing its results with the experimental results. It was shown that the motion of the particle is considerably affected by the electrostatic force.

Original languageEnglish
Article number012007
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2019 Oct 16
EventInstitute of Physics International Conferences Electrostatics 2019 and Dielectrics 2019 - Manchester, United Kingdom
Duration: 2019 Apr 82019 Apr 12

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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