摘要
利用均匀试验设计方法,确立预测的样品集111组。依据梗丝、薄片丝和烟丝不同的光谱特性,使用近红外光谱检测仪收集样品集的光谱信息,采用偏最小二乘法,建立梗丝、薄片丝在烟支中比例的近红外测试模型。结果表明:梗丝、薄片丝与叶丝配方模型具有较好的预测准确性,梗丝均方差为0.500,平均相对误差在6.44%以下;薄片丝均方差为0.487,其平均相对误差在6.88%。
111 predicted sample sets were ascertained by employing method of uniform experimental design.Due to different spectral properties of cut stem,reconstituted tobacco,and cut tobacco,the spectral information was collected by near-infrared spectrometer.Based on spectral differences,a near-infrared spectrum model of the samples,obtained through blending different proportion of cut stem and reconstituted tobacco,was established using partial least squares(PLS)method.Result showed that the model had a high predic...
出处
《中国烟草学报》
EI
CAS
CSCD
2010年第2期26-30,共5页
Acta Tabacaria Sinica
关键词
均匀设计
梗丝
薄片丝
结构
近红外模型
uniform design
cut stem
reconstituted tobacco
blend make-up
NIR model
