一种石墨电极缺损音频检测系统设计
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摘要
针对石墨电极内部缺损状况难以判断的问题,基于ARM9处理器S3C2440,研制一种石墨电极缺损音频检测系统。通过对检测到的声音进行信号处理和数据采集,以及对处理后的信号进行频谱分析,并与采集到的已知无损的石墨电极的信号频谱进行对比,得到检测结果,表明该系统可准确快速地判断石墨电极缺损情况,避免工厂通过人耳判断石墨电极好坏的弊端。
To solve the difficulty in determining the internal defects of graphite electrode, an audio detection system for graphite electrode was designed with the ARM9 processor S3C2440.The detected signals were put under signal processing and data acquisition. The processed signals were used for spectral analysis and at the same time compared with the signal spectrum of the acquired intact graphite electrode to obtain the detection results. The system can accurately and quickly decide whether the graphite electrode is damaged or not, thus avoiding the drawbacks that the quality of graphite electrode is judged through the workers' ears.
To solve the difficulty in determining the internal defects of graphite electrode, an audio detection system for graphite electrode was designed with the ARM9 processor S3C2440.The detected signals were put under signal processing and data acquisition. The processed signals were used for spectral analysis and at the same time compared with the signal spectrum of the acquired intact graphite electrode to obtain the detection results. The system can accurately and quickly decide whether the graphite electrode is damaged or not, thus avoiding the drawbacks that the quality of graphite electrode is judged through the workers' ears.
引文
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[3]赵鸣,孙磊.基于音频检测技术的混凝土无损检测技术[J].福州大学学报(自然科学版),2000,33(Z1):73-74.
[4]毕好昌.基于蓝牙及S3C2440的数据采集的研究与设计[J].蚌埠学院学报,2013,2(1):10-13.
[5]潘方.RS232串口通信在PC机与单片机通信中的应用[J].现代电子技术,2012,35(13):69-71.
[6]张登奇,杨慧银.信号的频谱分析及Matlab实现[J].湖南理工(自然科学版),2010,23(3):29-33.
[7]陈家焱,陈冬娇,张达响.基于Matlab的声音信号采集与分析处理[J].计算机与现代化,2005,6(7):12-16.
[8]陈建尹.基于UAF42芯片设计通用滤波器[J].科教文汇,2007(7):199.
[9]王忠.TCS-HD系列油水分离器的使用与管理[J].天津航海,2009(3):24-26.
[10]王光艳,赵晓群,王霞.基于Matlab GUI的语音信号特征提取系统设计[J].河北工业大学学报,2010,39(4):14-18.