Mars material composition testing system and method based on active/passive combined spectrum technology

Abstract

The invention discloses a mars material composition analyzing system and method adopting an active / passive combined spectrum technology. The system comprises an optical head, a short wave spectrometer, a medium wave spectrometer, a long wave spectrometer, an infrared AOTF spectrometer, a calibration plate, a two dimensional pointing mirror, a pointing mirror control cable, and a load controller. The system can cooperate with an active laser spectrum and a passive infrared spectrum technology to detect atoms, symmetrical molecules, and asymmetric molecules of mars. The active LIBS spectrum detection can quantitatively and qualitatively analyze atoms of a substance. The active time domain laser Raman detection can quantitatively and qualitatively analyze symmetric molecules of a substance. The passive infrared spectrum detection can quantitatively and qualitatively analyze asymmetric molecules of a substance. The active spectrum and passive spectrum are combined to synchronously detect atoms, symmetric molecules, and asymmetric molecules of substances so as to classify and recognize rocks, soil, and minerals in mars. The provided system and method enlarge the analysis range of substances in mars, and the system is compact and convenient.

Description

technical field [0001] The invention relates to a laser spectrum detection method, in particular to a remote material composition analysis system and method using active and passive combined spectrum technology, which is suitable for the analysis of material composition on the surface of Mars and belongs to the field of photoelectric detection. Background technique [0002] In the analysis of the mineral composition of the surface of Mars in deep space exploration, since the manned Mars landing technology is not yet mature, it is necessary to use an unmanned remote automatic detection method. Compared with other remote material composition detection methods, laser spectroscopy detection methods have the advantages of no sample preparation, fast analysis speed, multi-element analysis and trace element detection at the same time, and can remove the dust layer on the surface of the sample and go deep into the sample for measurement, etc. have been or will be applied. [0003] ...

AI Technical Summary

Problems solved by technology

However, some key technical problems need to be solved. For example, conventional laser Raman uses a continuous narrow linewidth laser, while LIBS uses a narrow pulse low repetition frequency laser. In order to solve the compactness and convenience of the detection device, the problem of how to multiplex the light source and detector; and Detection of pulsed laser Raman signals with time-domain resolution and timing assignment of two kinds of spectral signals; and multiplexing of active and passive spectral light paths, etc.

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