Rotary scanning type element detection device based on LIBS (Laser-Induced Breakdown Spectroscopy) technology

Abstract

The invention relates to a rotary scanning type element detection device based on an LIBS (Laser-Induced Breakdown Spectroscopy) technology. The device comprises a reflecting mirror, a dichroscope, atriangular prism, a first lens and a second lens; the reflecting mirror, the dichroscope and the triangular prism are sequentially arranged and distributed from bottom to top; the triangular prism islocated on a rotary platform; the first lens is connected with the triangular prism and horizontally arranged with the triangular prism; laser light rays are reflected to the dichroscope through the reflecting mirror, and are transmitted to the triangular prism through the dichroscope and are reflected to the first lens through the triangular prism; the second lens is horizontally distributed on one side of the dichroscope; and signal emission light rays of a plasma are transmitted to the triangular prism through the lens, reflected to the dichroscope through the triangular prism, reflected tothe second lens through the dichroscope, and are focused and coupled into a spectrograph through the second lens. The rotary scanning type element detection device based on the LIBS technology provided by the invention can realize 360-degree scanning of element distribution, complete the element distribution under different scanning radiuses, overcome the limitation that point-by-point matrix type detection is adopted in the prior art, and is suitable for wide-range and large-scale scanning detection analysis.

Description

technical field [0001] The invention relates to a rotating scanning element detection device based on LIBS technology. Background technique [0002] LIBS is the abbreviation of Laser-Induced Breakdown Spectroscopy (Laser-Induced Breakdown Spectroscopy). Characteristic spectrum, so as to achieve the identification, classification and qualitative and quantitative analysis of material elements. With its outstanding advantages of in-situ, real-time, no need for sample pretreatment and multi-element simultaneous detection, LIBS spectral analysis technology brings great convenience to the field of material element analysis, and can also be used for trace element analysis under some abnormal conditions. [0003] In the current LIBS technology, there is no relevant report on the LIBS technology that realizes the rotary scanning detection; most of the existing rotary scanning devices are the overall rotation of the whole system; although there is a spectral technology that can be us...

AI Technical Summary

Problems solved by technology

[0003] In the current LIBS technology, there is no relevant report on the LIBS technology that realizes the rotary scanning detection; most of the existing rotary scanning devices are the overall rotation of the whole system; although there is a spectral technology that can be used for experimental scanning detection, it is mostly realized by using an electronically controlled optical vibrating mirror. It is realized through the rotation of optical devices; now, the scanning analysis based on LIBS technology almost adopts point-by-point matrix detection, which has certain limitations for large-scale and large-scale scanning detection.

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