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High-precision aerosol detection system and method

A detection system, aerosol technology, applied in the direction of measuring devices, suspension and porous material analysis, particle suspension analysis, etc., can solve the problem of undetectable

Pending Publication Date: 2020-03-24
JIANGSU SUJING GROUP +1
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Problems solved by technology

At present, the existing aerosol photometer can measure the lowest 1ug / m3, which is widely used in the filter detection and filtration efficiency detection of the clean room filtration system, but when the aerosol concentration is too low, the system will not be able to detect, especially the high-efficiency , Ultra-high efficiency filter detection process

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  • High-precision aerosol detection system and method
  • High-precision aerosol detection system and method

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the embodiment shown in accompanying drawing:

[0022] See attached figure 1 As shown, a high-precision aerosol detection system includes an air inlet 1, an air outlet 2, an air flow channel connecting the air inlet 1 and the air outlet 2, and a detection component arranged in the air flow channel. The concentration cavity 3 of the air port 1, the first detection channel 41 and the second detection channel 42 respectively connected to the concentration cavity 3 and the gas outlet 2, the first detection channel 41 is provided with a detection module for detecting the concentration of aerosol and a detection pass The first flow sensor 51 of the air flow of the passage, the second detection passage 42 is provided with the second flow sensor 52 that detects the air flow through the passage, the air inlet 1 has a straight pipe-shaped air intake passage 11, the first detection passage 41 The inlet is l...

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Abstract

The invention discloses a high-precision aerosol detection system which comprises an air inlet, an air outlet, an air flow channel connecting the air inlet and the air outlet and a detection assemblyarranged in the air flow channel. The air flow channel comprises a concentration cavity communicating with the air inlet, and a first detection channel and a second detection channel which communicatewith the concentration cavity and the air outlet correspondingly. The aerosol entering from the air inlet enters the first detection channel after being concentrated, so that the detection module candetect the aerosol which cannot be detected by the detection module before concentration, and the detection range of the system is widened.

Description

technical field [0001] The invention relates to a high-precision aerosol photometer detection method and system, especially for the measurement of ultra-low concentration aerosol concentration. Background technique [0002] With the progress of society, national standards are becoming more and more stringent, and industrial production has higher and higher requirements for dust concentration in the air. Therefore, regular inspection of filtration systems using aerosol photometers has become an important measure to ensure industrial production. [0003] The existing aerosol photometer is based on the principle of light scattering. The light emitted by the light source is scattered by the aerosol particles, and the scattered light is combined to the photoelectric receiver through the combination of related optical lenses. The photoelectric receiver generates a corresponding current signal according to the intensity of the scattered light. After amplification, filtering, and AD...

Claims

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Application Information

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IPC IPC(8): G01N15/06
CPCG01N15/06G01N15/075
Inventor 梁凤飞孙吉勇沈玮栋谢军周大农陈建
Owner JIANGSU SUJING GROUP
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