Environmental dust monitoring system

A monitoring system and dust technology, applied in measurement devices, instruments, particle size analysis, etc., can solve the problems of narrow measurement range and inability to monitor in real time, and achieve the effect of avoiding interference, overcoming narrow measurement range, and ensuring accuracy and stability.
CN113984601AActive Publication Date: 2022-01-28THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
Publication Date
2022-01-28

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Abstract

The invention discloses an environmental dust monitoring system which comprises a laser, a spectroscope, a first plano-convex lens, a second plano-convex lens, a first photoelectric sensor, a second photoelectric sensor and a data acquisition processor. The laser is used for emitting laser to the spectroscope; the spectroscope divides the received laser into first light path laser and second light path laser, and the light path laser passes through the plano-convex lenses and then enters the photoelectric sensors; the first photoelectric sensor and the second photoelectric sensor are used for measuring scattered light intensity distribution in the vertical direction and inputting a measurement result into the data acquisition processor; and the data acquisition processor inversely calculates a first particle size range and a second particle size range of the dust particles, and determines an output dust distribution result according to the particle size ranges. With the adoption of the technical scheme, the problems of narrow measurement range, incapability of real-time monitoring and the like are solved through double-optical-path laser and inversion calculation, interference in the environment is avoided, and the accuracy and the stability of a monitoring result are ensured.
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Description

technical field

[0001] The invention relates to the technical field of environmental monitoring, in particular to an environmental dust monitoring system. Background technique

[0002] In the prior art, environmental dust monitoring solutions mainly include aerodynamic particle size detection, chemical reaction method and laser scattering method. Among them, the laser scattering method mainly includes MIE scattering (Mie scattering), Fraunhofer diffraction and Raman scattering.

[0003] The problem with aerodynamic particle size detection is that in order to ensure high reliability of measurement, its measurement range is usually 0.5-50um, which often cannot cover the particle equivalent particle size of dust particles, which limits the scope of its use. , and its maintenance and use for this type of system are also relatively troublesome.

[0004] The problem with chemical reaction detection is that it depends on the chemical reaction rate between the dust to be tested an...

Claims

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