Classification of Copper Alloys Based on Microjoule High Repetition Laser-Induced Breakdown Spectra
For the industrial application scenario of waste copper alloy recycling and classification,two machine learning algorithms based on microjoule high-frequency laser-induced breakdown spectroscopy(MH-LIBS)combined with artificial neural network(ANN)and support vector machine(SVM)are used.Seven copper alloy samples(H59,H62,H70,H85,H96,HPb59-1,HPb62)collected in point and motion modes were classified and recognized,respectively.The results show that ANN and SVM can achieve 100%accuracy in classifying the copper alloys collected in point mode.The classification accuracy for the copper alloys collected in motion mode is 100%and 99.86%,respectively.It can be seen that the microfocus high-frequency laser-induced breakdown spectroscopy system combined with machine learning algorithms can realize the fine classification of copper alloys,which is suitable for the rapid analysis of waste copper alloys on site.