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Combined laser induced spectrum system for detecting Mars substance components

A spectroscopic system and material technology, which is applied in the fields of laser spectroscopic detection and material composition detection on the surface of Mars, can solve problems such as detection sensitivity limitations, and achieve the effect of expanding the range, expanding the detection range of elements, and maintaining compactness and convenience.

Active Publication Date: 2015-09-09
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

The main elements on the surface of Mars can be detected by using a single LIBS technology, but the detection of trace and trace elements is limited by its detection sensitivity

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  • Combined laser induced spectrum system for detecting Mars substance components

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Embodiment Construction

[0032] The specific embodiment of the present invention is as follows figure 1 shown.

[0033] The combined laser spectroscopy system for Mars substance identification proposed by the present invention includes a card telescope 5, an ICCD spectrometer 12, a laser ranging machine 16, a main controller and a data analysis system 17, a multi-channel digital time delay pulse generator 18, and a 1064nm beam expander Mirror 19, 1064nm high-energy pulsed laser 20, frequency-doubling beam-expanding component 22 and auxiliary optical-mechanical components.

[0034] Among them, the card telescope 5 is mainly composed of a secondary mirror 4 and a primary mirror 6; the frequency-doubling beam expander assembly 22 is composed of a triple-frequency crystal 23 and a 355nm beam expander 24; the core components of the ICCD spectrometer 12 are the echelle grating 13 and the ICCD surface array detector 14; the auxiliary optical-mechanical assembly includes an all-reflection mirror 7, a collect...

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Abstract

The invention discloses a combined laser induced spectrum system for detecting Mars substance components. The system comprises a cassette telescope, an ICCD spectrometer, a laser range finder, a main controller and data analysis system, a multichannel digital delay pulser, a 1064nm beam expander, a 1064nm high-energy pulse laser, a frequency-multiplication beam expanding assembly and an auxiliary light machine. The Mars substance components can be detected based on the system combined with a laser induced plasma spectroscopy technology and a laser induce time domain resolution fluorescence spectroscopy technology. The system has the beneficial effects that a combined laser spectroscopy method is provided and is combined with an LIBS (laser induced breakdown spectroscopy) detection and LIF (laser induced fluorescence) time domain resolution spectroscopy technology, and respective advantages are played, so that the detection range of substance elements on the surface of Mars can be effectively expanded. A same laser source and a same detector are adopted in the two laser spectroscopy technologies under the condition that the detection range of the elements can be effectively expanded, so that the compact and convenient performances of the whole system are kept.

Description

technical field [0001] The invention relates to a laser spectrum detection technology, in particular to a remote material component detection system using combined laser-induced breakdown spectroscopy and laser-induced fluorescence time-domain spectroscopy technology, which is suitable for the detection of material components on the surface of Mars, and belongs to the field of photoelectric detection. Background technique [0002] At present, in the detection of the composition of materials on the surface of Mars, the manned Mars landing technology is not yet mature, and a remote detection method in an unmanned situation is required. Among the optional remote detection methods, laser spectroscopy-based detection methods have been or are about to be applied because of their advantages such as direct detection without sample preparation, elimination of dust on the surface of the detection target, simultaneous detection of multiple elements, and high spatial resolution. [0003...

Claims

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Application Information

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IPC IPC(8): G01N21/63G01N21/64
Inventor 万雄刘鹏希章婷婷况耀武
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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