基于多波段传感器技术的新型棉花色泽仪研制  

Development of novel cotton colorimeter based on multi-wave band sensors

作　　者：叶炜[1] 

机构地区：[1]浙江大学工业控制研究所,浙江杭州310027

出　　处：《纺织学报》2010年第4期113-116,共4页Journal of Textile Research

摘　　要：为对棉花色泽进行更精确、全面的研究,提出一种基于多波段传感器的棉花色泽测量仪器。仪器采用Y(λ)传感器及以多波段传感器组合而成的Z(λ)传感器检测棉花的颜色参数,针对棉花色泽测量提出了多波段组合的计算方法,并完成多波段传感器的结构设计。同时仪器采用45/0光学系统,并以微处理器控制多路放大器和ADC实现对Y和Z刺激值的采样。最终,其测量所获得的Y和Z刺激值可通过尼克逊亨特(Nickerson-Hunter)色度空间计算出棉花的反射比和黄度。对美国农业部标准棉样的测试表明其测试精度达到:反射比偏差≤±1%,黄度偏差≤±0.5。In order to study cotton color more accurately and completely,a novel cotton colorimeter based on multi-wave band sensors is presented.The instrument applies Y（λ） sensor and Z（λ） sensor composed of multi-wave band to measure the chromatic parameters of cotton.An algorithm for combination of multi-wave band has been presented specially for cotton color measurement and the structure of the multi-wave band sensors has been designed.Moreover,the instrument applies the 45/0 optical system and microprocessor to control the multi-channel amplifier and ADC to sample the tristimulus value of Y and Z.Finally,the Y and Z measured from the instrument can be used to compute the reflectance ratio（Rd） and yellowness（＋b） through Nickerson-Hunter equation.The accuracy of the measurement results reaches ΔRd≤±1% and Δ（＋b）≤±0.5 when measuring the standard cotton from USDA.

关 键 词：棉花 色度传感器 多波段 反射比 黄度 

分 类 号：TS112.6[轻工技术与工程—纺织材料与纺织品设计]