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Method and device for measuring scattered light space distribution

A technology of spatial distribution and measuring devices, which is applied in the field of optical detection, can solve problems such as the inability to measure the distribution of reflected light intensity, and achieve the effects of reducing measurement time, flexible measurement, and enhancing reliability

Inactive Publication Date: 2005-08-24
CHINA AGRI UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

However, for some samples with strong selective absorption for certain wave bands, such as leaves with strong absorption in the blue and red light bands of visible light, it is impossible to measure the reflected light intensity distribution of these samples in these bands

Method used

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  • Method and device for measuring scattered light space distribution
  • Method and device for measuring scattered light space distribution
  • Method and device for measuring scattered light space distribution

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Embodiment Construction

[0025] The invention provides a method and a device for measuring the spatial distribution of scattered light, which are used for agricultural information detection and computer realistic graphics display related technologies. exist figure 1 with figure 2In the schematic diagram of the overall structure of the system shown, the scattered light measurement device is composed of light source components, sample holders, slide rails, detection array sliders, control and transmission cabinets. In the middle of the table top of the control and transmission cabinet 5, the slide rail 1 and the detection array slider 2 are supported by the sample holder pillar 9, the U-shaped bracket 3 of the sample holder is fixed on the top of the sample holder pillar 9, and the sample ring 6 is rotated by the sample ring The handle 7 and the sample ring fixing button 8 are supported on the U-shaped open end of the U-shaped bracket 3 of the sample holder; the left light source assembly 4 is fixed o...

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Abstract

This invention relates to a method and device for measuring scattered light space distribution. In the control and in the transmission cabinet floor middle supported by the sample prop support rail track and the examination array slide, the sample frame fixed on the top of the sample prop peak, the sample frame installs in the entire metering equipment central position, the sample link by a sample cradling, left side of on the floor photosource module column the fixed photosource module; Sample link central position and photosource optical axis in identical strip level line. The entire measurement system carries on the control by the computer control interface, takes the photosource through the use different wave length light emitting diode, the change incident light wave length. The sample scattering luminous intensity by the arrangement in 1 / 4 circular arc examination array slide examination, the system may in the short time, sample and so on precise determination plant leaf blade under choice absorption wave length BRDF / BTDF measures the definite value. Used in the agricultural information examination and the computer reality graphical display related technology.

Description

technical field [0001] The invention belongs to the technical field of optical detection, and in particular relates to a method and a device for measuring the spatial distribution of scattered light, which are used for agricultural information detection and computer realistic graphic display related technologies. Background technique [0002] The scattered light distribution on the surface of an object usually uses the bidirectional reflectance distribution function (BRDF) and the bidirectional transmission distribution function (BTDF) to describe the scattering distribution of reflected light and the scattering distribution of transmitted light, respectively. The value of BRDF (or BTDF) is determined by the wavelength of incident light (W), the direction of incident light (polar angle θ i , azimuth φ i ), reflected light direction (polar angle θ r , azimuth φ r ) (or transmitted light direction (polar angle θ t , azimuth φ t )) These five variables are determined. The...

Claims

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Application Information

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IPC IPC(8): G01N21/17G01N21/47
Inventor 劳彩莲李保国郭焱
Owner CHINA AGRI UNIV
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