Automatic experimental platform based on laser-induced breakdown spectroscopy analysis technology

Abstract

The invention relates to the technical field of laser spectral analysis, and discloses an automatic laser-induced breakdown spectroscopy (LIBS) experimental platform combined with embedded control and software development technologies. According to the invention, an integrated control circuit is used for performing uniform control on a laser, a delayer, a spectrograph, a sample platform and the like through analyzing control commands of all parts; and an automatic analyzing and processing module has the functions of automatic data processing, experimental parameter setting and correcting and the like in an experimental process. By virtue of the experimental platform, the automation of an LIBS experiment process is realized, the experimental period is greatly shortened, and the research efficiency of an LIBS analyzing and testing method is enhanced.

Description

technical field [0001] The invention belongs to the technical field of laser spectrum analysis, and relates to an experimental platform for laser-induced breakdown spectrum analysis, in particular to realizing the automation of the experimental process by combining embedded control and software development technologies. Background technique [0002] Laser-induced breakdown spectroscopy (LIBS) technology is an atomic emission spectroscopy technology, the principle of which is that after the laser beam is focused, it bombards the surface of the sample to generate plasma, and the atoms and ions in the excited state transition from a high-energy state to a low-energy state, emitting The optical radiation with a specific wavelength is emitted, and after being separated and detected by the spectrometer, the optical signal is converted into a digital signal and transmitted to the host computer software for processing to obtain information such as the type of material element. [00...

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Problems solved by technology

[0004] However, the process of analyzing and testing method experiments on the existing LIBS experimental platform is often too cumbersome

These experimental platforms are assembled from components from different manufacturers. Each component (such as a laser) is controlled by an independent operating software. Operators need to frequently switch between different software to complete the control of the entire experimental platform. The integration of the entire experimental platform is relatively low. Low; during the experiment, when it is necessary to test the influence of a parameter gradually changing within a fixed range on the test results, the operator needs to continuously modify the parameter value to conduct experiments until all values ​​are traversed, and the automation of the entire experiment process is low

The integration and low automation of the experimental platform have brought great complexity to the research of analytical methods and reduced the efficiency of analytical method research

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