Quantitative laser-induced breakdown spectroscopy for simultaneous analysis of primary and secondary elements on Mars
A technology of laser-induced breakdown and synchronous analysis, applied in the field of photoelectric detection, can solve the problems of limited circuit hardware resources, difficult calculation amount of solving algorithms, etc., to achieve the effect of taking into account analysis and high-precision analysis
Active Publication Date: 2017-06-27
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The advantage of this method is that it can eliminate the influence of chemical matrix effects on the accuracy of quantitative analysis, but the disadvantage is that the solution algorithm is difficult and the amount of calculation is large
[0005] The LIBS detection system carried on the Mars rover is constrained by launch costs and other conditions, and its circuit and other hardware resources are limited. It is impossible to simultaneously conduct multivariate analysis of the main elements and trace elements in the target components such as soil and rocks on the Martian surface.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0017] The laser-induced breakdown spectroscopy method for synchronous analysis of the main elements and trace elements on the surface of Mars proposed by the present invention first divides the material elements on the surface of Mars into main elements and trace elements based on the prior knowledge of the composition of the material elements on the surface of Mars; and then The multivariate analysis method is adopted for the quantitative detection of major elements; the univariate analysis method is adopted for the detection of trace elements.
[0018] The method is illustrated by the following specific examples.
[0019] Assume that the number of main elements of the material composition on the surface of Mars to be detected is a, and the number of trace elements is b.
[0020] Follow the steps below for LIBS quantitative analysis:
[0021] 1. The number of standard samples selected for LIBS calibration is c, and each standard sample is required to contain all major eleme...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a quantitative laser-induced breakdown spectroscopy method for synchronous analysis of primary and secondary elements on Mars. Based on the prior knowledge of the composition of elements on the surface of Mars, the method divides the elements on the surface of Mars into major elements and trace elements; the quantitative detection of major elements adopts a multivariate analysis method; the detection of trace elements adopts a univariate analysis method. The beneficial effect of the invention is that, under the condition of limited hardware resources of the Mars rover, the high-precision analysis of main elements can be realized, and the analysis of trace elements can also be taken into consideration.
Description
technical field [0001] This patent relates to a laser spectrum detection method, in particular to a quantitative laser-induced breakdown spectrum detection method, which is suitable for the quantitative analysis of the element composition of detection targets such as soil and rocks on the surface of Mars, and belongs to the field of photoelectric detection. Background technique [0002] Laser-induced breakdown spectroscopy (LIBS for short) is a laser spectroscopy technique for detecting the constituent elements of matter. Long-range LIBS can realize the detection of material composition at a certain distance without human beings, and has become an important means for the analysis of target materials such as soil and rocks on the surface of Mars. However, quantitative LIBS detection is a recognized technical problem. There are many factors in quantitative LIBS, including: ablation hole effect, chemical matrix effect, etc., which affect the accuracy of quantitative detection....
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/63
Inventor 万雄章婷婷刘鹏希况耀武
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI