机械与电子2026，Vol.44Issue(4)：14-20,26,8.
含涂覆层不锈钢废料LIBS光谱采集方法研究
Spectral Signal Collection Method for Stainless Steel Waste with Coating Layers Based on LIBS
摘要
Abstract
To address the issue of coating interference in spectral detection during stainless steel waste recycling,this study proposes a coating identification and dynamic detection method based on laser-in-duced breakdown spectroscopy technology.This method utilizes single-point,continuous laser pulses to construct a dynamic detection criterion,based on the sliding window statistical characteristics by monito-ring the relative intensity changes between coating characteristic elements and matrix iron elements.On this basis,a dual stability condition was set with a standard deviation to mean ratio of less than 0.1 and a standard deviation change rate of less than 0.01,achieving adaptive locking of the coating breakdown time.The results showed that for the samples containing paint and coating,the breakthrough was precisely iden-tified at the 31st and 35th pulses,respectively.At these points,the relative strength fluctuation indicators were as low as 0.062 7 and 0.087 3,with the standard deviation changes of-0.005 81 and 0.001 27,re-spectively,all satisfying the established stability conditions.This verifies that the method can effectively a-void signal fluctuation interference,providing reliable technical support for efficient spectral acquisition of stainless steel waste.关键词
激光诱导击穿光谱/不锈钢废料/涂覆层识别/击穿动态检测/相对强度Key words
laser induced breakdown spectroscopy(LIBS)/stainless steel waste/coating layer identifica-tion/dynamic breakdown detection/relative strength分类
化学化工引用本文复制引用
张丽娟,陈蔚芳,罗星美,叶文华..含涂覆层不锈钢废料LIBS光谱采集方法研究[J].机械与电子,2026,44(4):14-20,26,8.基金项目
江苏省重点研发计划项目(BE2023814) （BE2023814）
