中国电机工程学报2012，Vol.32Issue(2)：110-116,7.
基于彩虹技术的吸收性液滴多参数测量方法
Multi-parameters Measurement for Liquid Column Based on Rainbow Technology
摘要
Abstract
The rainbow technology is widely used for liquid parameter measurement. However there are few studies on liquid absorbance at present. A novel technique based on the geometrical optics, Mie theory and Bouguer law for measuring refractive index, radius and absorbance simultaneously was presented. A charge-coupled device（CCD） camera was used to detect the scattering intensity distribution arising from the liquid column illuminated by a laser beam. The frequency of Ripple bows, position and intensity of the maximum peak were used for multi-parameter calculation. Stable liquid column at the capillary export was chosen for experimental research to avoid the measurement error from nonsphericity of the falling droplets. The result shows that the frequency of Ripple bows couldn＇t be determined correctly when the Ripple bows are thoroughly destroyed by noise. Therefore the radius result has large error. On the contrary, accuracy result can be obtained when the signal to noise ratio of Ripple bows is high. A linear relationship between volume concentration of red ink and the absorbance is illustrated. And the lower detection limit of absorbance is as low as 10-5.关键词
彩虹技术/Mie理论/Bougure理论/吸收性/液滴Key words
rainbow technology/Mie theory/Bougure law/absorbance/liquid particle分类
资源环境引用本文复制引用
宋飞虎,许传龙,王式民..基于彩虹技术的吸收性液滴多参数测量方法[J].中国电机工程学报,2012,32(2):110-116,7.基金项目
基金资助:东南大学优秀青年教师教学科研资助计划(3203001202) （3203001202）
江苏省青蓝工程项目资助(1103000126). （1103000126）
