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神经网络及声谱分析技术在气动阀门故障诊断中的应用／高向东黄石生／／华南理工大学介绍一种利用神经网络和声谱分析技术对气动阀门进行故障诊断的方法。通过放置在气动阀门附近的驻极式麦克风获取音频信号，信号经前置放大器实现增幅和实效值变换并输入至快速傅里变换（...
Application of Neural Network and Sound Analysis Technology in Pneumatic Valve Fault Diagnosis Gao Xiangdong Huang Shisheng South China University of Technology This paper introduces a method of fault diagnosis of pneumatic valve by using neural network and sound spectrum analysis technology. The audio signal is obtained through the electret microphone placed in the vicinity of the pneumatic valve, the signal is amplified by the preamplifier and the RMS is transformed and input to the fast Fourier transform (...