文献类型：期刊文献

中文题名：木材中的水分及其近红外光谱分析

英文题名：Water in Wood and Its Near Infrared Spectroscopic Analysis

作者：江泽慧[1] 黄安民[1]

第一作者：江泽慧

机构：[1]中国林业科学研究院木材工业研究所

年份：2006

卷号：26

期号：8

起止页码：1464-1468

中文期刊名：光谱学与光谱分析

外文期刊名：Spectroscopy and Spectral Analysis

收录：CSTPCD;;EI(收录号：20064210187786);Scopus(收录号：2-s2.0-33750011571);WOS:【SCI-EXPANDED(收录号:WOS:000240269200022)】；北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；PubMed;

基金：国家林业局"948"引进项目(2003-4-27)资助

语种：中文

中文关键词：近红外光谱;水分;密度;木材

外文关键词：Near infrared spectroscop;Water;Density;Wood

分类号：O657.3

摘要：水分是木材的重要特征之一,用近红外光谱分析木材性质,必须考虑水分对预测结果的影响。文章分析了不同含水率状态下木材在近红外光谱区的吸收特性;用近红外光谱法预测木材中的水分含量,相关系数为0.99,校正标准偏差SEC和预测标准偏差SEP分别是0.041和0.043;通过在不同含水率(7%,12%,20%,30%,60%)状态下采集近红外光谱与固定含水率下的木材密度建立关联,结果表明,利用近红外光谱技术可以在不同含水率下采集近红外光谱来预测木材气干密度。
Water is one of the most important characters of wood, so the effect of moisture content on the results must be considered in wood property analysis by NIR spectroscopy. In the present study, the absorbance of wood with various moisture content in NIR spectra was analyzed. Then the moisture contents in wood were predicted by NIR spectroscopy. The coefficient of determination is 0.99; and SEC and SEP are 0.041 and 0.043 respectively. In addition, a strong liner relationship between wood density with a 12% moisture content and wood NIR spectra with different moisture contents（7%, 12%, 20%, 30% and 60%）was found. The results indicate that the model built with different moisture contents can predict wood density of 12% moisture content.