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提出了融合声发射信号和电流信号检测刀具破损状态的方法，尤其是采用小波变换处理电流信号获取信号特征，可以改善检测系统的适用性。实际应用证明系统具有高的可靠性。
A method to detect the tool breakage by combining acoustic emission signal and current signal is proposed. In particular, wavelet transform is adopted to process the current signal to obtain signal characteristics, which can improve the applicability of the detection system. The practical application proves that the system has high reliability.