Title: Development of a Temperature Controllable BRDF Measurement System
Abstract: Based on the BRDF single reference measurement principle,a BRDF measurement system was developed with the measure temperature at 500℃ maximum.The light source is the laser organ whose wavelength is from visible light 0.6328μm to far-middle infrared light 10.6μm.According to the different wavelengths of laser organ,photoelectric detectors were chosen accordingly.The relative position transfer of the light source,detector and sample was realized by the turntable device.The sample was heated by the heating-furnace and the temperature was controlled by fuzzy PID controller with the accuracy at ±1 ℃.Under visible light and infrared wavelengths,the measurement system was calibrated by utilizing the standard white board.With the analysis of the experiment results,the error is less than 15%.This device is applicable to the measurement of material surface space reflectance property under different temperatures.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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Cited By Count: 1
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