Improvement in classification accuracy of stainless steel alloys by laser-induced breakdown spectroscopy based on elemental intensity ratio analysis

作     者：Sungho SHIN Youngmin MOON Jaepil LE Eunsung KWON Kyihwan PARK Sungho JEONG Sungho SHIN;Youngmin MOON;Jaepil LEE;Eunsung KWON;Kyihwan PARK;Sungho JEONG

作者机构：School of Mechanical EngineeringGwangju Institute of Science and Technology1 Oryong-dong Buk-gu Gwangju 500-712Republic of Korea Engineering Solution Research GroupResearch Institute of Industrial Science and Technology67 Cheongam-ro Nam-gu Pohang-si Gyeongsangbuk-doRepublic of Korea 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2020年第22卷第7期

页      面：83-91页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the R&D Center for Valuable Recycling(Global-Top R&BD Program)of the Ministry of Environment.(Project No.2016002250003) partially supported by Korea Institute for Advancement of Technology(KIAT)grant funded by the Korea Government(MOTIE)(P0008763,The Competency Development Program for Industry Specialist) 

主　　题：laser-induced breakdown spectroscopy(LIBS) stainless steel classification intensity ratio 

摘      要：Laser-induced breakdown spectroscopy(LIBS) is a useful technique for accurate sorting of metal scrap by chemical composition *** this work,a method for intensity-ratiobased LIBS classification of stainless steel applicable to highly fluctuating LIBS signal conditions is *** spectral line pairs for intensity ratio calculation are selected according to elemental concentration and upper levels of emission *** is demonstrated that the classification accuracy can be significantly improved from that of full-spectra principal component analysis or intensity-based *** proposed method is considered to be suited to an industrial scrap sorting system that requires minimal maintenance and low system price.