纸张含水量的傅里叶变换中红外光声光谱分析  

Determination of Paper Moisture Content by Infrared Photoacoustic Spectroscopy in Fourier Transform

作　　者：马赵扬[1] 杜昌文[2] MA Zhao-yang;DU Chang-wen(National Library of China, Beijng 100081, China;Institute of Soil Science, Chinese Academy of Sciences, Nanling 210008, China)

机构地区：[1]中国国家图书馆,北京100081 [2]中国科学院南京土壤研究所,江苏南京210008

出　　处：《红外》2017年第11期44-48,共5页Infrared

基　　金：中国国家图书馆青年项目(NLC-KY-2015-36)

摘　　要：随着科学技术的不断发展,社会正在向智能化演变。实现纸质文献的实时监测以达到保存和保护文献的目的是未来发展的必然趋势。为了给库房文献的实时监测提供依据,结合化学计量学方法,利用傅里叶变换中红外光声光谱技术快速测定了纸张含水量。基于中红外光声光谱,分别采用主成分回归(Principal Components Regression,PCR)方法和偏最小二乘回归(Partial Least Squares Regression,PLSR)方法建立了纸张含水量的定量模型,并通过交叉验证选择了最佳主成分数。结果表明,PLSR方法的建模结果优于PCR方法(决定系数R^2:0.3681>0.3532)。通过增加主成分数可以使模型预测变好,但也存在过拟合风险。未来拟采集更多的纸张样本,以期建立稳定的纸张性质检测模型,为实现纸质文献的红外光谱实时监测奠定基础。With the progress of science and technology, society is evolving toward intelligence. To use real-time paper literature monitoring to realize the preservation of paper literature will be an inevitable development trend in the future. In order to provide the basis for the real-time monitoring of library literature, Fourier transform medium infrared photo-acoustic spectroscopy is used to determine the water content in paper in combination with stoichiometry. A quantitative model of paper water content is established by Principal Component Regression（PCR） and Partial Least Squares Regression（PLSR）respectively on the basis of medium-infrared photoacoustic spectroscopy. The optimum primary component number is selected by cross-validation. The result shows that the modeling result of partial least squares regression is better than that of the principal component regression（the determination coefficient is 0.3681 0.3532）. By increasing the number of principal component, the prediction of the models will be better. However, there are some risks of fitting. In the future, more paper samples will be collected so as to establish a stable paper quality detection model and lay a basis for the real-time infrared spectrum monitoring of paper literature.

关 键 词：纸张含水量 红外光声光谱 主成分回归 偏最小二乘回归 

分 类 号：G253.6[文化科学—图书馆学] O657.3[理学—分析化学]