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Portable elementary composition analysis device based on laser-induced breakdown spectroscopy technology

A technology of laser-induced breakdown and spectroscopy, which is applied in the field of portable elemental composition analysis devices, can solve problems such as the inability to exert the advantages of LIBS technology, and achieve the effects of fast test speed, small size and wide test range

Active Publication Date: 2014-08-27
SICHUAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The desktop LIBS instrument needs to bring the sample to the laboratory for measurement, and cannot take advantage of the online in-situ measurement of LIBS technology

Method used

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  • Portable elementary composition analysis device based on laser-induced breakdown spectroscopy technology
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  • Portable elementary composition analysis device based on laser-induced breakdown spectroscopy technology

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] Such as figure 1 As shown, the present invention includes a laser 1, an optical and control system 2 positioned at the front end of the laser 1, a piezoelectric ceramic driver 3 connected to the optical and control system 2, an optical fiber probe 4, a spectrometer A5 and a spectrometer B6 connected to the optical fiber probe 4 , the photoelectric tube 7 within the irradiation range of the laser, the delayer 8 connected with the photoelectric tube 7, the spectrometer B6 connected with the delayer 8, the spectrometer A5, and the spectrometer B6 are connected to the main board 9 of the industrial computer through the junction box 12, and the photoelectric tube The photosensitive mouth of 7 is placed near the laser head of laser device 1. The position of phot...

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Abstract

The invention discloses a portable elementary composition analysis device based on a laser-induced breakdown spectroscopy technology. The portable elementary composition analysis device comprises a laser 1, an optical and control system 2 positioned at the front end of the laser 1, a piezoelectric ceramic driver 3 connected with the optical and control system 2, an optical fiber probe 4, a spectrograph A5 and a spectrograph B6 which are connected with the optical fiber probe 4, a phototube 7 positioned in an irradiation range of the laser, a time delayer 8 connected with the phototube 7, and a spectrograph B6 connected with the time delayer 8, wherein the spectrograph A5 and the spectrograph B6 are connected with an industrial personal computer mainboard 9 through a concentrating box 12; the industrial personal computer mainboard 9 is connected with a display 10; the industrial personal computer mainboard 9 is connected with the time delayer 8; the portable elementary composition analysis device also comprises a voltage converter 13; the voltage converter 13 is connected with a power supply 11, the industrial personal computer mainboard 9 and the time delayer 8; all the parts are integrated in a portable suitcase. The elementary composition analysis with outdoor online in-situ detection requirements can be met, the device can be automatically focused to the surface of a sample to be detected, and the type and content of elements contained in the sample are measured.

Description

technical field [0001] The invention relates to the field of optoelectronic technology, in particular to a portable elemental composition analysis device based on laser-induced breakdown spectroscopy technology. Background technique [0002] At present, the spectroscopic techniques for measuring the composition of substances mainly include inductively coupled plasma emission spectrometry (ICP-AES), atomic absorption spectrometry (AAS), gas chromatography (GC), mass spectrometry (MS), etc. The technology has some limitations. The ICP-AES method, AAS method and MS method need to pretreat the sample. The GC method is difficult for accurate qualitative and quantitative analysis of impure samples, and the MS method is difficult to operate. When using the above-mentioned technology to analyze the elemental composition contained in the substance, it is necessary to collect and retrieve the sample first, and then analyze it, which does not have the ability of real-time online in-sit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/63
CPCG01N21/718G01N2201/0221
Inventor 段忆翔林庆宇王杰刘安良王帅王旭
Owner SICHUAN UNIV
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