Laser spectroscopy induced component detection system

A detection system, laser light source technology, applied in the direction of material excitation analysis, spectrum investigation, etc., can solve the problems of no patent protection content, etc., to achieve the effect of reducing smelting costs, simplifying the detection process, and improving the detection speed

Inactive Publication Date: 2012-12-26
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] For the online detection of molten steel composition in the metal smelting process, ther

Method used

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  • Laser spectroscopy induced component detection system
  • Laser spectroscopy induced component detection system
  • Laser spectroscopy induced component detection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] refer to figure 1 , making a laser spectrum induced on-line molten steel composition detection system. The concave mirror 1 of the system is a concave spherical focusing mirror with a diameter of 200 mm; the convex mirror 2 is a high reflection mirror made of metal; the window mirror 3 is a flat transparent film made of quartz glass, coated with Anti-reflection coating for detection and excitation of laser wavelengths; casing 4 is a protective pipe made of ceramics, with a diameter of 40mm; steel furnace 5 is a 500KG vacuum blast furnace for smelting, produced by a domestic vacuum blast furnace manufacturer; computer 6 is from LENOVO company Desktop personal computer; detection point distance dynamic monitoring system 7 is Nikon LASER 550G model single-frequency laser range finder, and feedback adjustment control device 8 includes an amplifying feedback circuit and a data signal processing circuit. The signal collected by the laser rangefinder is amplified and process...

Embodiment 2

[0033] refer to figure 2, making a laser spectrum induced on-line molten steel composition detection system. The optical focusing structure formed by the concave mirror 1 and the convex mirror 2 of the system is replaced by a lens group 12 . The lens group 12 is composed of 4 lenses for eliminating aberrations, including 1 concave mirror and 3 convex mirrors; the window mirror 3 is a flat transparent sheet made of quartz glass, and the two sides are coated with amplifiers for detection and excitation laser wavelengths. Permeable film; casing 4 is a protective pipe made of ceramics, with a diameter of 50mm; steel furnace 5 is a 200KG electric furnace for smelting; computer 6 is a portable computer of LENOVO; the detection point distance dynamic monitoring system 7 is a dual-frequency laser range finder , the feedback adjustment control device 8 includes an amplification feedback circuit and a data signal processing circuit. The signal collected by the laser rangefinder is am...

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PUM

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Abstract

Belonging to the technical field of laser detection, the invention relates to a novel laser spectroscopy induced detection system, especially to a molten steel component online detection system, which is obtained by gathering lasers on a molten steel surface and conducting analysis through induced plasma spectroscopy. The laser spectroscopy induced online molten steel component detection system includes: a concave reflecting mirror, a convex reflecting mirror, a window mirror, a casing pipe, a steel furnace, a computer, a detection point distance dynamic monitoring system, a feedback regulation control device, a laser light source, a light beam turning system, an echelle spectrometer, an integral delay detection system, a laser beam quality control system and the like, and can realize accurate detection of manganese, magnesium, sulfur, carbon and other 20 components contained in molten steel. The detection system provided in the invention can realize real-time detection of molten steel components, reduce the smelting cost, and save resources.

Description

technical field [0001] The invention relates to a novel laser spectrum induction detection system, in particular to an on-line detection system which uses laser light to converge on the surface of molten steel and analyzes the excited plasma spectrum to obtain the composition of molten steel, and belongs to the technical field of laser detection. Background technique [0002] Laser-induced plasma spectroscopy (Laser Induced Plasma Spectroscopy, LIPS) technology is an analytical technique that uses pulsed laser ablation of substances to generate plasma, and qualitatively or quantitatively studies the composition of substances through plasma emission spectra. It has the advantages of wide application range, fast analysis speed, less destructive measurement, remote non-contact measurement and real-time and in-situ detection. [0003] LIPS is a quantitative analysis technique based on the emission spectrum generated by the interaction between laser and material. This method only...

Claims

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Application Information

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IPC IPC(8): G01N21/63G01J3/28
CPCG01N21/718
Inventor 赵天卓余锦樊仲维刘洋张雪黄科麻云凤聂树真李晗
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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