頁籤選單縮合
題 名 | GIS Particle Impact Source Location |
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作 者 | Chen, Chien-yi; Tai, Cheng-chi; Su, Ching-chau; Hsieh, Ju-chu; Chen, Jiann-fuh; | 書刊名 | International Journal of Applied Science and Engineering |
卷 期 | 6:3 2009.02[民98.02] |
頁 次 | 頁223-228 |
分類號 | 440.12 |
關鍵詞 | Particle impact; Gas insulation switchgear; GIS; Source location; Acoustic emission; AE; |
語 文 | 英文(English) |
英文摘要 | This paper focuses on the artifact breaking-of-pencil-tips experiments in metal pipes to simulate particles impacts in gas insulation switchgear (GIS). The artifact acoustic signals are generated from the breaking of pencil tips. The signals are detected and measured by means of two acoustic emission (AE) sensors. According to the analysis, the AE signals include mainly two different frequencies. The velocities of sound waves with different frequencies differ from each other as the signals are delivered in the metal pipes. Since these two kinds of sound waves are produced at the same time as the breaking of pencil tips, we can calculate the acoustic wave velocities and amplitude attenuation of waves of different frequencies according to the arrival time of the sound waves. Also, we surely can locate the particle impact position from the transmission time and distance. |
本系統中英文摘要資訊取自各篇刊載內容。