公开(公告)号：US11945002B2

公开(公告)日：2024-04-02

申请号：US17711540

申请日：2022-04-01

Applicant: GIST(Gwangju Institute of Science and Technology)

Inventor： Sung Ho Jeong ,  Sung Ho Shin ,  Young Min Moon ,  Jae Pil Lee

IPC: B07C5/34 ,  B07C5/342 ,  B07C5/36

CPC classification number: B07C5/342 ,  B07C5/365 ,  B07C2501/0054

Abstract: The present disclosure relates to an automatic metal sorting system using laser induced breakdown spectroscopy. The system may include: a conveyer configured to move waste metals at a constant speed; a shape measurer configured to measure a position and a shape of at least one waste metal on the conveyer; a laser induced breakdown spectroscopic device configured to determine the kind of the waste metal by emitting a laser to the waste metal and receiving and analyzing a plasma spectrum signal generated by the emitted laser; and a discharger configured to separate and discharge the waste metal in accordance with the determined kind of the waste metal.

公开(公告)号：US11543357B2

公开(公告)日：2023-01-03

申请号：US16534824

申请日：2019-08-07

Applicant: Gwangju Institute of Science and Technology

Inventor： Eui Seok Hwang ,  E Den Kim ,  Sung Ho Jeong ,  Sung Ho Shin

IPC: G01N21/71 ,  G01N33/2028

Abstract: Disclosed is an operating method of a metal sorting system using laser induced breakdown spectroscopy (LIBS), which may include: analyzing a metal component distribution for various metals using LIBS library information; setting multiple clusters according to the metal component distribution; performing first regression component analysis with respect to spectral data of a metal sample; calculating a probability that the spectral data will belong to each of the set multiple clusters using the first regress component analysis result; performing second regression component analysis with respect to the spectral data which belong to each cluster; and discriminating a type of metal sample by a weighted sum of the calculated probability and the second regression component analysis result.