Back to Search Start Over

Design and optimization of handheld alloy analysis instrument based on microjoule high pulse repetition frequency LIBS.

Authors :
Qu, Dongming
Yang, Guang
Zhou, Wenwen
Sun, Huihui
Fang, Jiaxuan
Tian, Di
Li, Chunsheng
Li, Qingkai
Source :
Review of Scientific Instruments. Aug2024, Vol. 95 Issue 8, p1-8. 8p.
Publication Year :
2024

Abstract

We briefly describe the design of a handheld metal detection instrument based on microjoule high repetition frequency laser-induced breakdown spectroscopy. The instrument uses a Raspberry Pi as the control core and a laser with a frequency of 10 kHz and a single pulse energy of 100 µJ as the excitation source. In addition, a mini-putter is built into the instrument to move the laser, allowing the ablation of the sample surface line area without external auxiliary equipment. The excitation-generated plasma radiation is collected by a simple optical path and transmitted directly to the spectrometer. We also constructed and trained a Backpropagation Artificial Neural Network (BP-ANN) model based on 12 different grades of alloys and transplanted the feedback process of the BP-ANN to the Raspberry Pi, which realized the rapid classification of the 12 alloys with > 95% classification accuracy on the handheld instrument. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00346748
Volume :
95
Issue :
8
Database :
Academic Search Index
Journal :
Review of Scientific Instruments
Publication Type :
Academic Journal
Accession number :
179372464
Full Text :
https://doi.org/10.1063/5.0204009