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Water body polarization scattering characteristic measuring device

A polarization scattering, water body technology, applied in scattering characteristic measurement, measurement device, color/spectral characteristic measurement, etc., can solve the problems of inaccurate, unavoidable, and unable to fully reflect the characteristics of narrow spectrum.

Active Publication Date: 2021-10-22
NO 63921 UNIT OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The embodiment of the present invention provides a device for measuring the polarization scattering characteristics of water bodies to at least solve the problems in the prior art 1) only radial and transverse light can be observed, although the attenuation of light can be measured, the complex refractive index of particles can be approximated and particle size distribution, but the results are very inaccurate; 2) Without laser, the energy of the light in the narrow spectrum is weak, which cannot fully reflect the characteristics of the narrow spectrum, or the transmission characteristics of the spectrum; 3) When detecting underwater, it is inevitable Technical issues affected by sunlight, stray light, water profile

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Embodiment 1

[0030] figure 1 It is a schematic diagram of the water body polarization scattering characteristic test according to an embodiment of the present invention, such as figure 1 As shown, the device is composed of a visible light source, a laser light source, a visible light spectrometer, a laser detector, a visible light detector, a turntable, and a polarization camera, wherein the visible light source and the laser light source are placed in parallel to generate visible light or laser beams.

[0031] Specifically, the water body polarization scattering characteristic testing device of the present invention can be as follows in the embodiment figure 1 As shown, it consists of a visible light source 1, a laser light source 2, a spectrometer, an energy meter, a visible light detector 3 and a turntable 6. There are two working methods. The first one is visible light irradiation and visible light (spectrometer) detection, which is mainly used for the turbidity of turbid liquids on a...

Embodiment 2

[0048] In the embodiment of the present invention, the spectral data collection and processing are performed by the device in the first embodiment, wherein the data processing method may include the following:

[0049] Spectrometer data processing method: When the measured object is pure water and the light source is an unbiased visible light source, the spectrometer is an unbiased spectrometer, and S0, S90, and S180 are the values ​​of the spectrometer when the turntable is 0°, 90°, and 180°, respectively. Due to the refraction, reflection and transmission of glass and pure water, S90 and S0 need to be subtracted during calculation. S0 is the value of pure water. Considering the difference of the spectrum of the light source, the values ​​of all spectra need to be normalized. When the measured object is the liquid to be measured and the light source is an unbiased visible light source, the spectrometer is an unbiased spectrometer, and T0, T5, T15, T30, T60, T90, T145, and T18...

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Abstract

The invention discloses a water body polarization scattering characteristic measuring device. The device is composed of a visible light source, a laser light source, a visible light spectrometer, a laser detector, a visible light detector, a rotary table and a polarization camera, and the visible light source and the laser light source are arranged in parallel and used for generating visible light or laser beams. In the prior art, the problems are solved that 1) only radial and transverse light can be observed, although light attenuation can be measured and complex refractive index and particle size distribution of particles can be approximately obtained, the result is very inaccurate; 2) laser is not used, the energy of light in a narrow spectrum is weak, and the characteristics of the narrow spectrum or the transmission characteristics of the spectrum cannot be completely reflected; and 3) during underwater detection, the influence of sunlight, stray light and water surface shape is inevitable.

Description

technical field [0001] The invention relates to the field of water body performance testing, in particular to a water body polarization scattering characteristic measuring device. Background technique [0002] With the continuous development of intelligent technology, more and more intelligent devices are used in people's life, work and study. The use of intelligent technology has improved the quality of people's life and increased the efficiency of people's study and work. [0003] There are absorption and scattering of light in the water body. The yellow substance in the water body mainly plays the role of absorption, and the particles mainly play the role of scattering. Usually, the measurement of the absorption of the water body can be combined with the scattering of the water body. Water body scattering measurement can usually collect two paths of light, one is the longitudinal light attenuated along the path, and the other is the transverse light scattered perpendicula...

Claims

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Application Information

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IPC IPC(8): G01N21/21G01N21/31G01N21/39G01N21/47G01N21/49
CPCG01N21/21G01N21/31G01N21/39G01N21/47G01N21/49G01N2021/216G01N2021/4792G01N2201/061G01N2201/088Y02A90/30
Inventor 杨迪马岩刘也王东丽曾嫦娥刘元韩晓磊黄建余张帅
Owner NO 63921 UNIT OF PLA
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