Split Frequency of Vacuum Arc Cathode Spot with Changing Current

カテゴリ: 研究会(論文単位)

論文No: SP13029

グループ名: 【B】電力・エネルギー部門 開閉保護研究会

発行日: 2013/06/25

タイトル(英語): Split Frequency of Vacuum Arc Cathode Spot with Changing Current

著者名: Shinji Yamamoto(Tokyo City University),Toru Iwao(Tokyo City University),Motoshige Yumoto(Tokyo City University)

著者名(英語): Shinji SYamamoto(Tokyo City University),Toru Iwao(Tokyo City University),Motoshige Yumoto(Tokyo City University)

キーワード: ｖａｃｕｕｍ　ａｒｃ|ｃａｔｈｏｄｅ　ｓｐｏｔ|ｓｕｒｆａｃｅ　ｔｒｅａｔｍｅｎｔ|ｍｅｔａｌ　ｖａｐｏｒ|ｉｍａｇｅ　ｐｒｏｃｅｓｓｉｎｇ|vacuum arc|cathode spot|surface treatment|metal vapor|image processing

要約(日本語): A remarkable characteristic of a vacuum arc cathode spot is that the cathode spot moves around on the metal surface. A cathode spot can remove an oxide layer. However, the influence of current change to the parameter of the cathode spot on the boundary layer remains unclear. As described herein, the number of cathode spots, the split frequency, the brightness and the areas on the surface of boundary layer when the current changed were measured. Experiments were performed using a SS400 cathode and a cylindrical copper anode. A high-speed video camera recorded the cathode spot movement. Then, the obtained images were analyzed using plasma image processing.

要約(英語): A remarkable characteristic of a vacuum arc cathode spot is that the cathode spot moves around on the metal surface. A cathode spot can remove an oxide layer. However, the influence of current change to the parameter of the cathode spot on the boundary layer remains unclear. As described herein, the number of cathode spots, the split frequency, the brightness and the areas on the surface of boundary layer when the current changed were measured. Experiments were performed using a SS400 cathode and a cylindrical copper anode. A high-speed video camera recorded the cathode spot movement. Then, the obtained images were analyzed using plasma image processing.

原稿種別: 日本語

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