Optical system of scattering-type cloud particle detector
An optical system and cloud particle technology, applied in scattering characteristic measurement, optics, optical components, etc., can solve the problems of unfavorable optical system design, processing, loss of scattered light, attenuation of scattered light, etc., to solve the problem of uneven lighting, The same time width, the effect of solving the diffraction problem
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[0042] like figure 1 As shown, the present invention is a scattering cloud particle detector based on a novel optical path, which uses a single-mode optical fiber to couple and output a semiconductor laser as an illumination light source, and uses an aspheric collimator to collimate the laser light; using a square aperture diaphragm and a 4f transformation system, It not only produces the required uniform illumination of the laser light, but also solves the diffraction problem in the beam cutting process, and improves the purity of scattered light reception; when receiving scattered light, a narrow-band filter is used to improve the signal-to-noise ratio of the instrument during daytime work; The cloud particle detector invented has two receiving angles, not only can obtain the size of cloud particles, but also can infer the phase state of cloud particles according to the ratio of the scattering intensity of the two angles.
[0043] The system consists of a single-mode fiber c...
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