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The world's first online testing equipment engineering prototype has been successfully developed
[ China Instrument Network Instrument R&D ] Recently, it was learned from the Institute of Optoelectronics of the Chinese Academy of Sciences that under the support of the national special scientific equipment development project, the Optoelectronics Research Institute developed the world’s first application based on Laser Induced Spectroscopy (abbreviated as LIBS) technology. On-line testing equipment engineering prototype for vacuum alloy smelting.
The Academy of Optics and Optics of the Chinese Academy of Sciences is affiliated with the National Research Institute of the Chinese Academy of Sciences, from the headquarters, Changchun Institute of Optics, Fine Mechanics and Physics, Shanghai Institute of Technical Physics, Xi’an Institute of Optics and Precision Mechanics, Shanghai Institute of Optics and Fine Mechanics and (Chengdu) Optoelectronics Technical Institute. The Institute is mainly engaged in three fields: optoelectronic engineering, aerospace, and applied science and technology. It has made achievements in large-scale complex lasers, key components of very large-scale integrated circuit lithography machines, airborne laser radars, and large-screen laser display systems. A number of scientific research achievements.
Laser-induced spectral detection technology has the unique advantages of rapid multi-element simultaneous measurement, no sample preparation, lossless, remote measurement, etc. It can provide in-situ, on-line, or fast key element concentration information for the production process, which is called “Future Chemical Analysis Superstar."
Although laser-induced spectroscopy has a number of advantages, it is not controlled by the interaction of laser-substance (which cannot be precisely controlled by sample preparation) and laser-plasma (generated by laser ablation), plasma-ambient gas, It is not easy to realize the real-time diagnosis and accurate analysis of the metallurgical level and alloy composition due to the influence of various uncertainties and matrix effects during the interaction between the plasma and shock waves (generated by rapid plasma collisions).
At present, domestic and foreign are mainly used offline analysis of the furnace, which also restricts the further improvement of the level of metallurgical production technology. In the face of difficult problems, the Institute of Optoelectronics of the Chinese Academy of Sciences continued to break through, successfully developed an on-line testing equipment engineering prototype based on laser-induced spectral detection technology, and the laser ablated the sample to be tested. By detecting the ion emission line, the sample can be quickly qualitatively and quantitatively analyzed. Elemental composition.
According to reports, this technology has the advantages of no sample pretreatment, short analysis time of several tens of seconds, and simultaneous detection of multiple elements, and is an effective means to realize on-line detection of complex alloy production. The research results show that the technology studied in this project can improve production efficiency, avoid waste incidents, improve product quality and batch consistency.
(Source: Science and Technology Daily, China Institute of Instrumentation, Institute of Optoelectronics, Chinese Academy of Sciences)