ふたつの異なる火花抵抗則から導出される火花放電の特性比較と妥当性のさらなる実験検証

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: 2020/02/01

タイトル(英語): Characteristic Comparison and Further Experimental Verification of Spark Discharges derived from Different Two Spark Resistance Formulae

著者名: 高　義礼（釧路工業高等専門学校電子工学科），藤原　修（電気通信大学）

著者名(英語): Yoshinori Taka (Department of Electronic Engineering, National Institute of Technology, Kushiro College), Osamu Fujiwara (The University of Electro-Communications)

キーワード: 静電気放電，火花抵抗則，火花特性，実験検証　　electrostatic discharge，spark resistance formulae，spark characteristics，experimental verification

要約(英語): With the proliferation of wearable terminals and internet of things (IoT) equipment, electrostatic discharges (ESDs) due to electrification of humans and objects can cause electromagnetic malfunction to these devices, which is called intra-EMC (Electromagnetic Compatibility). This type of the ESD/EMC issues would come from a steep transient electromagnetic near fields generated by spark discharges between micro-gaps. To clarify the underlying mechanism of micro-gap sparks, it is indispensable to quantitatively grasp the spark phenomena of such micro-gap ESDs. For this purpose, different two spark-resistance laws proposed by Toepler and Rompe-Weizel have often been used so far; however, the applicability to micro-gap ESDs is not being fully understood. In this study, a spark current is derived for an electric dipole sparking model in closed forms from the above spark resistance formulae to show the characteristics of spark discharges theoretically. Measurements of spark currents due to the sparks between parallel disk electrodes with a micro-gap are conducted at charge voltages from 300 V to 7000 V in order to verify the validity and applicability of Toepler's and Rompe-Weizel's formulae. As a result, spark constants derived from the measured results can be independent of spark lengths, and agree fairly with those empirically obtained for both the formulae. In comparison with the Toepler's formula, however, the Rompe-Weizel's formula can better explain the charge voltage dependence of spark characteristics such as nominal duration times, peaks and frequency spectra of spark currents.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.140 No.2 （2020）　特集：放電研究の最新動向

本誌掲載ページ: 72-79 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/140/2/140_72/_article/-char/ja/