High-flux laser system suspended particle sampling device and method

Abstract

The invention discloses a high-flux laser system suspended particle sampling device and method, belonging to the environment measurement field. The device is mainly composed of an upper template and a lower template, wherein the upper template is provided with 12 or more round slots by etching; a through concentric circle is arranged at the bottom of the round slot; a copper wire mesh is placed in the round slot; the lower template is provided with a copper wire mesh fixing circular ring by etching in a position corresponding to the round slot of the upper template, the copper wire mesh fixing circular ring is used for fixing the copper wire mesh in the round slot of the upper template and matches with the round slot, a through hole is formed by etching in the copper wire mesh fixing circular ring, the upper template concentric circle and the through hole in the copper wire mesh fixing circular ring are in through-communication; and the upper and lower templates are provided with position-corresponding threaded holes respectively, and can completely fit with each other and fix the inventive device at a laser gas outlet for sampling after the upper and lower templates are butt-jointed. The inventive method can realize simultaneous sampling by a plurality of copper wire meshes at one time, and has large sampling area. The inventive device is portable, and suitable for sampling suspended particles and aerosol at the container port.

Description

Technical field [0001] The invention relates to a high-flux laser system suspended particle sampling device and method, in particular to a method for realizing multi-point sampling by adopting multiple copper meshes, and belongs to the field of environmental measurement. Background technique [0002] During the working process of a high-power laser system, a large number of suspended particles and aerosols will be generated. These suspended particles and aerosols suspended on the optical path will affect the beam quality. Adhering to the surface of the optical element will reduce the light transmittance, and in serious cases, it will cause Damage to the surface of optical components. In order to find out the source of these suspended particle aerosols and their impact on the surface of optical components, it is necessary to collect suspended particles and aerosol samples in a high-power laser system, and measure and analyze their morphology, particle size, and composition. At pr...

AI Technical Summary

Problems solved by technology

This method is suitable for outdoor collection of atmospheric suspended particles. The sampler used is too large to be used to collect suspended particles at the outlet of the container. Moreover, the number of copper meshes placed in the sampler at one time is small, and the sampling area is small.

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