1000 V以下の帯電金属球間の衝突ESDに伴う放射電界の火花抵抗則を用いた計算波形と特異性

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2024/09/01

タイトル(英語): Calculated Waveform and Peculiarity of Radiated Electric Field due to Collision ESD between Metallic Spheres with Charging Voltages below 1000 V Using Spark Resistance Law

著者名: 藤原　修（名古屋工業大学／（株）ノイズ研究所），川又　憲（東北学院大学工学部）

著者名(英語): Osamu Fujiwara (Nagoya Institute of Technology/Noise Laboratory Co., LTD.), Ken Kawamata (Tohoku Gakuin University)

キーワード: 衝突ESD，球電極対，火花抵抗則，放射電界，火花長，検証　　collision ESD，spherical electrode pair，spark resistance law，radiated electric field，spark length，verification

要約(英語): Collision ESD between charged metallic objects below 1000 V causes electromagnetic interference in electronic equipment and devices. This interference is being observed to intensify at lower charging voltages. The phenomenon was first identified by Masmitsu Honda, but its underlying mechanism remains unclear even today. Originally, the charging voltage and spark length of collision ESD are unknown due to measurement difficulties, making it extremely challenging to establish the relationship between the radiated electric field strength and the spark property in such cases. To clarify the above mentioned electromagnetic phenomenon in collision ESD, in this study, a method of calculating the radiated electric field along with a spark length estimated from the measurement strength of radiated field peak is presented using the spark resistance law developed by Rompe and Weizel. The validity is confirmed by our previous measurement data on radiated electric field due to the collision ESD between charged spherical electrodes with a diameter of 30 mm at charging voltages from 300 to 600 volts, employing an optical field probe with a wideband up to 10 GHz. The estimated spark length is verified by comparing it with the spark lengths based on an empirical Paschen's formula between fixed electrodes and the discharge data from past literature on metal electrodes, revealing the peculiarity effect of the radiated electric field strength caused by “constant breakdown potential gradient” that occurs at charging voltages below 1000 volts.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.144 No.9 （2024） 特集：超電導材料創出に向けたインフォマティクス応用の最前線

本誌掲載ページ: 377-384 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/144/9/144_377/_article/-char/ja/