不同光谱采集方式对手持式近红外建模效果的影响  

Effect of Different Spectral Collection Methods on Handheld Near Infrared Modeling

作　　者：杨家琪 李显柱 杨芳芳 梁晏凯 李一辉 陈康宁[1] 牛绍辉[1] 王家俊 华一崑[1] 王发勇 YANG Jia-qi;LI Xian-zhu;YANG Fang-fang(Hongyun Honghe Tobacco(Group)Co.,Ltd.,Kunming,Yunnan 650231;Shanghai Chuangheyi Electronic Technology Development Co.,Ltd.,Shanghai 200090)

机构地区：[1]红云红河烟草(集团)有限责任公司,云南昆明650231 [2]上海创和亿电子科技发展有限公司,上海200090 [3]云南中烟工业有限责任公司技术中心,云南昆明650231

出　　处：《安徽农业科学》2024年第10期178-181,218,共5页Journal of Anhui Agricultural Sciences

基　　金：红云红河烟草(集团)有限责任公司自立科技项目“近红外与MSPC在打叶复烤均质化过程质量管控中的应用研究”(HYHH2021GY09)。

摘　　要：对烟叶原烟采取滑动法和六点法2种方式进行扫描,同时对烟末样品采取滑动法,用二阶导数预处理,异常样本剔除、波长选择、剔一交互验证等后用偏最小二乘法分别建立烟碱模型,三者的相关系数分别为0.97、0.98、0.99,三者的校正标准误差(SEC)分别为0.20%、0.25%、0.09%。结果表明烟叶样品采用滑动法扫描优于六点法,检测的烟叶样品更具有代表性和其快速的结果能满足实际应用需求,在应用过程中节省大量的时间,明显提高工作效率。The sliding method and 6-point method were used to scan tobacco leaf raw tobacco,while sliding method was used for tobacco end samples.After preprocessing with second-order derivatives,removing abnormal samples,selecting wavelengths and performing one-to-one interaction verification,partial least squares methods were used to establish nicotine models.The correlation coefficients of the three methods were 0.97,0.98 and 0.99,respectively,the corrected standard error(SEC)of the three methods were 0.20%,0.25%and 0.09%,respectively.The results showed that the sliding method for scanning tobacco leaf samples was superior to the 6-point method,and the detected tobacco leaf samples were more representative and their fast results could meet the actual application requirements,saving a lot of time in the application process,and significantly improving work efficiency.

关 键 词：近红外 光谱采集方式 数理指标 模型 烤烟 

分 类 号：TS41[农业科学—烟草工业]