曲阜师范大学学报（自然科学版）Issue(1)：81-83,3.DOI:10.3969/j.issn.1001-5337.2016.1.081
基于半导体激光光源的新型雨滴谱测量仪
New Raindrop Monitor Instrument Based on Semiconductor Laser Source
摘要
Abstract
A new algorithm of obtaining floating thresholding based on average light intensity is used to improve the measurement accuracy of particle diameter and velocity of small raindrop.A LD source and linear CMOS are used to setup an optical measurement scheme for raindrop parameters with small ball be-ing used to substitute for raindrop.The intensity distribution of linear CMOS changes while the balls pass through the measurement area.There is a significant difference in the intensity distribution of the different measure area because of optical diffraction.The measurement results verify the feasibility of the new meth-od.The experimental result is compared with the traditional method.The result of the comparison shows that the accuracy is increased by about 6% and new raindrop monitor instrument satisfies the requirement of precipitation auto-measurement for high precision of small raindrop.关键词
光学测量/衍射/雨滴谱/雨滴直径/线阵 CMOSKey words
optical measurement/diffraction/raindrop spectrograph/raindrop diameter/linear CMOS分类
信息技术与安全科学引用本文复制引用
薛拓,吴尚谦..基于半导体激光光源的新型雨滴谱测量仪[J].曲阜师范大学学报（自然科学版）,2016,(1):81-83,3.基金项目
公益性行业（气象）科研专项（GYHY201306074-2）． （）
