High-flux laser system suspended particle sampling device and method

A laser system and suspended particle technology, applied in the field of environmental measurement, can solve the problems of small number of copper mesh, small sampling area, large sampler, etc., and achieve the effect of small and portable device and large sampling area

Active Publication Date: 2013-06-26
NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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.

Method used

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  • High-flux laser system suspended particle sampling device and method
  • High-flux laser system suspended particle sampling device and method
  • High-flux laser system suspended particle sampling device and method

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Embodiment

[0025] Such as figure 1 with 3 As shown, a high-throughput laser system suspended particle sampling device is mainly composed of an upper template 1 and a lower template 4.

[0026] Among them, the upper template 1 is etched with eighteen circular grooves 3 with a diameter of 3mm and a depth of 0.1mm; the bottom of the circular groove 3 has a concentric circle with a diameter of 2.5mm. The concentric circle has a depth of 0.1mm and penetrates Template 1, forming a through hole as the sampling part; Place a copper mesh with a thickness of 0.03mm in the circular groove 3; The lower template 4 is etched with eighteen outer diameters of 2.95 at the corresponding position of the circular groove 3 of the upper template 1 A raised copper mesh fixing ring 6 with an inner diameter of 2.45mm and a height of 0.07mm is used to fix the copper mesh in the circular groove 3 of the upper template; the raised end of the copper mesh fixing ring 6 is fixed along the copper mesh. 6 The inner diamete...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/22
Inventor 贾连军叶自煜吴启鹏王春勇朱忠奎李丹明
Owner NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH
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