Portable elemental composition analysis device based on laser-induced breakdown spectroscopy
A laser-induced breakdown and spectroscopic technology, applied in the field of portable elemental composition analysis devices, can solve the problems such as the inability to exert the advantages of LIBS technology, and achieve the effects of fast test speed, wide test range and light weight
Active Publication Date: 2016-06-08
SICHUAN UNIV
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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
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[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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The invention discloses a portable element composition analysis device based on laser-induced breakdown spectroscopy technology, which includes a laser 1, an optical and control system 2 located at the front end of the laser 1, a piezoelectric ceramic driver 3 connected to the optical and control system 2, and an optical fiber probe 4. The spectrometer A5 and spectrometer B6 connected to the fiber optic probe 4, the photoelectric cell 7 located within the irradiation range of the laser, the delay device 8 connected to the photoelectric cell 7, the spectrometer B6 connected to the delay device 8, the spectrometer A5, and the spectrometer B6 connects industrial computer mainboard 9 through junction box 12, industrial computer mainboard 9 connects display 10, industrial computer mainboard 9 connects delay device 8, also includes voltage converter 13, voltage converter 13 connects power supply 11, industrial computer mainboard 9 and Delay device 8; the above components are integrated in a portable suitcase. The present invention can meet the element composition analysis required by outdoor online in-situ detection, can automatically focus on the surface of the sample to be tested, and complete the measurement of the type and content of the elements contained in the sample.
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...
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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