Optical system and optical method for detecting atmospheric components through non-intuitive imaging

An imaging detection and optical system technology, applied in the direction of polarization influence characteristics, etc., can solve the problem of not being used, and achieve the effect of high accuracy and repeatability

Inactive Publication Date: 2015-09-09
刘学峰
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Problems solved by technology

[0008] Another category of optical parameters is light wave parameters, such as light wave vibration mode, that is, polarization state parameters, light wave vect

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  • Optical system and optical method for detecting atmospheric components through non-intuitive imaging
  • Optical system and optical method for detecting atmospheric components through non-intuitive imaging
  • Optical system and optical method for detecting atmospheric components through non-intuitive imaging

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Embodiment

[0043] The light source adopts natural light scattered by the non-polluting atmosphere. Natural light, that is, the light emitted from the sun, absorbed, scattered and reflected by the atmosphere, clouds and the surrounding environment, is irradiated to the environment containing SO 2 , O 3 , CO 2 , NO, Cl 2 、CH 3 -R and other molecules of the measured gas, the asymmetric relationship in the molecular structure includes anisotropic atomic arrangement and atomic bonding in the molecule, as well as the polar characteristics of electron cloud and electron spin, etc., will interact with the light wave and change the light wave. The speed of propagation makes a single polarization state change, such as converting linear polarization to nonlinear polarization, and circular polarization to non-circular polarization, so that one polarization state has different absorption and transmittance relative to another polarization state, that is, changes According to the fluctuation mode of...

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Abstract

The present invention relates to an optical system and an optical method for detecting atmospheric components through non-intuitive imaging. The optical system comprises: a light source for emitting reference light and detection light; a collection lens for collecting the reflection, the scattering and the emitted light of a detected object; a light wave modulation system for carrying out modular automatic modulation on the polarization state of a detected light path; an imaging lens for focusing and imaging the light; a CCD pixel system matched with the light wave modulation system and used for recording the light field intensity change of each pixel by using a dynamic modular scanning method; and a computer processing system. With the system and the method of the present invention, the change of the structure and the components of the detected gas in the space can be real-timely imaged, the sampling errors can be avoided, the image with higher precision and higher repeatability than the image obtained through other methods and the atmospheric component analysis result can be finally obtained, the system does not require the special light source and the chemical device and has the low cost, the measurement process is simple and easy to implement, the system weight is light, and the system and the method is suitable for airborne and aerospace.

Description

technical field [0001] The invention relates to a system and method for detecting atmospheric components, in particular to an optical system and method for non-intuitive imaging and detecting atmospheric components. Background technique [0002] The increasingly severe air pollution has made people pay more and more attention to the detection of atmospheric components. At present, there are mainly two types of detection technologies, optical detection and non-optical detection. Among them, the non-optical detection methods mainly include: electrical conductivity method, which is caused by the sampling gas passing through the conductive liquid. The change of conductivity coefficient is used to detect atmospheric components; the chemical electrolysis method is used to detect atmospheric components by changing the electrolytic characteristics caused by the action of the sampled gas and solution; the flame brightness method is used to measure the brightness of the sampled gas bur...

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Application Information

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IPC IPC(8): G01N21/21
Inventor 刘学峰
Owner 刘学峰
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