Synchronous measurement system for aerosol

A synchronous measurement and aerosol technology, applied in the direction of measuring devices, material analysis through optical means, instruments, etc., can solve the problems of large uncertainty and errors, and achieve the effect of accurate acquisition and error reduction

Active Publication Date: 2018-11-27
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Claims
  • Application Information

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Problems solved by technology

However, atmospheric aerosols have great time and space variability, and the uncertainty is large. When using different techniques to measure the same object on different equipment, the results obtained will have large errors.

Method used

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  • Synchronous measurement system for aerosol
  • Synchronous measurement system for aerosol
  • Synchronous measurement system for aerosol

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but 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 making creative efforts belong to the protection scope of the present invention.

[0023] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.

[0024] It should also be understood that the terminology used ...

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Abstract

The invention discloses a synchronous measurement system for aerosol. The synchronous measurement system comprises a light path module, a gas circuit module, a cavity module, a photo-acoustic spectrometry signal processing module, a cavity ring-down signal processing module and a control module, wherein the light path module comprises a laser, an isolator, a collimation diaphragm group and a multi-stage steering light path, wherein the cavity module comprises a buffering cavity and a photo-acoustic tank; the photo-acoustic spectrometry signal processing module comprises a rheomicrophone and arheomicrophone external amplifier; the cavity ring-down signal processing module comprises a photoelectric detector, an external amplifier and an external capture card; and the control module comprises a controller, a computer and a power supply group, and the computer is used for processing collected signals. By simultaneously measuring cavity ring-down and photo-acoustic spectrometry of atmospheric aerosol in the same cavity, the measurement of parameters of the same body finished under the same background, and the extinction coefficient, absorption coefficient and scattering coefficient ofthe aerosol are synchronously and integrally acquired, so that the errors are reduced, and the optical property of the atmospheric aerosol is accurately acquired.

Description

technical field [0001] The invention relates to the technical field of gas monitoring, in particular to an aerosol synchronous measurement system. Background technique [0002] Atmospheric aerosols refer to solid or liquid particles suspended in the air. Atmospheric aerosols not only affect atmospheric radiation and climate change, but also affect military, wireless laser communication and environmental fields. Serious secondary aerosols will cause environmental pollution, so master Its chemical properties are of great significance. Using optical methods to study its characteristics is an important way to study the chemical properties of atmospheric aerosols. Simultaneously obtaining aerosol scattering coefficients, absorption coefficients, and extinction coefficients is an important means to obtain optical properties such as aerosol single scattering albedo. However, atmospheric aerosols have great time and space variability, and the uncertainty is large. When different te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/00G01N21/17
CPCG01N15/00G01N21/1702G01N2021/1704
Inventor 谢品华靳华伟胡仁志李治艳凌六一陈浩王怡慧王凤阳
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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