Laser induced spectrum measuring apparatus having self-adjusting calibration function and control method

A technology of laser-induced spectroscopy and measuring devices, applied in measuring devices, material excitation analysis, material analysis through optical means, etc., can solve problems such as difficulty and inability to guarantee the adjustment effect, achieve effective collection and get rid of uncertainty , the effect of increasing the power density

Inactive Publication Date: 2010-03-10
太原市海通自动化技术有限公司 +1
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Problems solved by technology

[0007] In order to solve the problem that the existing laser-induced spectrum measurement device realizes the adjustment method of laser focus point adjustment and optical fiber probe alig

Method used

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  • Laser induced spectrum measuring apparatus having self-adjusting calibration function and control method
  • Laser induced spectrum measuring apparatus having self-adjusting calibration function and control method
  • Laser induced spectrum measuring apparatus having self-adjusting calibration function and control method

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Embodiment Construction

[0036] A laser-induced spectral measuring device with a self-adjusting and calibrating function, comprising a platform 1 for placing an object to be measured, and a spectrum acquisition and analysis component; 4 The optical fiber probe 7 connected to the corresponding channel of the spectrometer 2, the object-to-be-tested platform 1 is placed directly below the pulsed laser 3, the optical window of the pulsed laser 3 is directly opposite to the object-to-be-tested platform 1, and the optical window of the pulsed laser 3 A focusing lens 10 is arranged in front of the window; the measuring device also includes a computer 11, an auxiliary light source assembly, and a focus adjustment assembly and an optical fiber probe angle adjustment assembly controlled by the computer 11 via an electronic control unit 33, and the spectrometer 2 and the optical fiber probe angle adjustment assembly in the spectrum collection and analysis assembly Computer 11 is connected, such as figure 1 shown...

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Abstract

The invention relates to the laser induced spectrum measuring technology, in particular to a laser induced spectrum measuring apparatus having self-adjusting calibration function and a control method.The invention solves the problem that laser focus adjustment and fiber probe alignment are difficult to realize by the prior laser induced spectrum measuring apparatus. The measuring apparatus comprises a platform for placing articles to be measured, a spectrum collecting and analyzing assembly, a computer, an assistant light source assembly, an electronic control unit, a focus adjustment assembly, an angle adjusting assembly for the fiber probe, wherein the focus adjustment assembly comprises an optical amplifying lens group, a CCD image sensor and an electric elevator mechanism; the angle adjusting assembly for the fiber probe consists of electric control rotary apparatuses arranged for each fiber probe, respectively; the assistant light source assembly comprises an electric control constant flow source, a selective transflective lens and a frequency range calibration light source. The control method comprises a focus adjustment step and an angle adjusting step for the fiber probe.The measuring apparatus has the advantages of simple structure, favorable using effect, simple and reasonable control method and realization of laser focus adjustment and fiber probe alignment with high precision.

Description

technical field [0001] The invention relates to laser-induced spectrum measurement technology, in particular to a laser-induced spectrum measurement device and a control method with self-adjusting and calibrating functions. Background technique [0002] Laser Induced Breakdown Spectroscopy (LIBS) is a new type of spectral analysis technology that uses focused intense pulsed lasers to excite matter to generate plasma, and obtains information on the content of material elements by analyzing the atomic or ion luminescence spectrum in the plasma. Realize elemental analysis of samples. LIBS technology has the advantages of simple sample preparation, multi-element simultaneous analysis, and fast analysis speed. Therefore, this technology is widely used in the qualitative or quantitative analysis of various substances and has great practical value. At present, LIBS technology has been applied in the fields of environmental pollution monitoring, industrial product detection and arc...

Claims

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Application Information

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IPC IPC(8): G01N21/63G01N21/01
Inventor 贾锁堂张生俊尹王保阎高伟王红兵李平柱罗振红王学钦张雷
Owner 太原市海通自动化技术有限公司
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