高压电器2017，Vol.53Issue(3)：230-234,5.DOI:10.13296/j.1001-1609.hva.2017.03.036
基于激光诱导击穿光谱的真空灭弧室真空度在线检测实验研究
Experimental Study of Vacuum Degree Online Detection of Vacuum Interrupter Based on Laser Induced Breakdown Spectroscopy
摘要
Abstract
Vacuum degree online detection of vacuum interrupter has been investigated for more than 50 years.But,there is still no preferable means can be used to practical application.The spectral information of copper material and ambient gas of vacuum interrupter have been studied from 10-3 Pa to 105 Pa based on Laser-induced breakdown spectroscopy (LIBS) in laboratory and the change rules of spectral intensities against pressure have been obtained.Furthermore,spectral intensities have been analyzed using principal component analysis(PCA) and artificial neural network(ANN).The PCA result indicates that LIBS signals under ten different pressures from 10-3 Pa to 105 Pa show a good classification.What's more,the recognition accuracy can reach up to 96.67％ using ANN method.A new online detection method of vacuum degree is proposed in this paper which can overcome the poor electromagnetic interference ability,low limit of detection and hard to realize online detection of tradition methods.This method is of great significant to vacuum degree online detection of vacuum interrupter.关键词
真空度/在线检测/激光诱导击穿光谱/主成分/神经网络Key words
vacuum degree/online detection/laser-induced breakdown spectroscopy(LIBS)/principal component analysis/neural network引用本文复制引用
袁欢,宋立冬,刘平,王小华,刘定新,杨爱军,丁洪斌,荣命哲..基于激光诱导击穿光谱的真空灭弧室真空度在线检测实验研究[J].高压电器,2017,53(3):230-234,5.基金项目
国家自然科学基金创新研究群体(51521065).Project Supported by the National Natural Science Foundation of Innovation Research Group(51521065). （51521065）
