Anti-sputtering device for laser-excited liquid
An anti-sputtering and liquid technology, which is applied in the directions of measuring devices, thermal excitation analysis, material excitation analysis, etc., can solve the problems of suspension liquid sedimentation and stratification affecting measurement results, lens blurring, etc.
Pending Publication Date: 2020-04-17
北矿检测技术股份有限公司
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[0004] The purpose of the present invention is to provide an anti-sputtering device for laser-excited liquid in order to solve related technical problems, and to solve the technical problems in the prior art that the lens is blurred by sputtering, and the sedimentation and stratification of the suspension liquid affects the measurement results.
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[0015] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0016] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordin...
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The invention discloses an anti-sputtering device for laser-excited liquid. The anti-sputtering device comprises a liquid receiving tank, a liquid receiving tank upper cover, a flow guide pipe sleeve,a flow guide pipe, an anti-sputtering sleeve, an air knife type air wall, a high-speed fan, a high-speed fan fixing support, an anti-accumulation stop block, a flow guide cover below the fan, an exhaust fan and an observation hole cover plate, wherein the flow guide pipe sleeve, the anti-sputtering sleeve, the liquid receiving tank and the flow guide cover below the fan are used as multi-stage passive protection, the annular air wall formed by the flow guide pipe sleeve and the flow guide pipe, the air knife type air wall and the high-speed fan are used as multi-stage active protection, and each stage of active protection can be increased or decreased according to sputtering conditions. A horizontal excitation mode is adopted, and active and passive protection is matched, so that the pollution of the focusing lens or the spectrum acquisition lens caused by liquid sputtering in the sample analysis process is effectively prevented. Meanwhile, compared with a vertical excitation mode, the device has the advantages that the solution can be protected and analyzed, and analysis errors caused by sedimentation and layering can be effectively avoided for turbid liquid.
Description
technical field [0001] The invention relates to an anti-sputtering device, in particular to an anti-sputtering device which uses laser to excite liquid. Background technique [0002] Laser Induced Breakdown Spectroscopy (LIBS) uses ultrashort pulse laser to focus on the surface of the sample to form plasma, and uses a spectrometer to analyze the plasma emission spectrum to identify the elemental composition in the sample, and then identify and classify materials , qualitative and quantitative analysis. [0003] Most LIBS devices generally adopt the excitation method of focusing the laser vertically on the object to be measured. Therefore, when analyzing liquid samples, serious sputtering will occur, resulting in blurred lenses, which may cause a series of transmission and refraction of the laser beam, which is harmful to the measurement. The result is a large error. At the same time, for the suspension, when the vertical excitation is used, the phenomenon of sedimentation ...
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Login to View More IPC IPC(8): G01N21/71G01N21/15
CPCG01N21/15G01N21/718G01N2021/151
Inventor 赵振史烨弘韩鹏程李瑞华房胜楠杨斐李华昌
Owner 北矿检测技术股份有限公司