Laser paint removal has many advantages compared to traditional paint removal methods and has been widely used in the industry. A closed-loop control based on real-time monitoring of the laser paint removal process is essential to achieve a good clean effect without damaging the substrate. The acoustic signals generated in various stages have been studied experimentally. The results show that the property of the acoustic signal is closely correlated with the status of laser paint removal. The amplitude and the local standard deviation of the acoustic signal in the frequency range of 7–10 kHz gradually decreases to a steady value with the removal of the paint. The change of these two factors can reflect the status of laser paint removal more realistically than the signal amplitude in the time domain. Compared with the laser induced breakdown spectroscopy method, we found that monitoring based on acoustic signal works on a wider laser fluence range. We proved that this method can ...

中文翻译：

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激光涂料清洗中的声信号监控

与传统的油漆去除方法相比，激光油漆去除具有许多优势，并且已在业界得到广泛使用。基于实时监控激光除漆过程的闭环控制对于获得良好的清洁效果而不损坏基材至关重要。实验研究了在各个阶段产生的声信号。结果表明，声信号的性质与激光除漆状态密切相关。随着涂料的去除，声音信号在7-10 kHz频率范围内的振幅和局部标准偏差逐渐减小至稳定值。这两个因素的变化比时域中的信号幅度更真实地反映了激光除漆的状态。与激光诱导击穿光谱法相比，我们发现基于声信号的监测在更大的激光注量范围上起作用。我们证明了这种方法可以...