| 木材中的水分及其近红外光谱分析 |
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| 引用本文： | 江泽慧,黄安民.木材中的水分及其近红外光谱分析[J].光谱学与光谱分析,2006,26(8):1464-1468. |
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| 作者姓名： | 江泽慧 黄安民 |
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| 作者单位： | 中国林业科学研究院木材工业研究所，北京 100091 |
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| 基金项目： | 引进国际先进农业科技计划(948计划) |
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| 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。
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| 关 键 词： | 近红外光谱 水分 密度 木材 |
| 文章编号： | 1000-0593（2006）08-1464-05 |
| 收稿时间： | 2006-02-22 |
| 修稿时间： | 2006-05-08 |
Water in Wood and Its Near Infrared Spectroscopic Analysis |
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| JIANG Ze-hui,HUANG An-min.Water in Wood and Its Near Infrared Spectroscopic Analysis[J].Spectroscopy and Spectral Analysis,2006,26(8):1464-1468. |
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| Authors: | JIANG Ze-hui HUANG An-min |
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| Institution: | Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China |
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| Abstract: | 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. |
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| Keywords: | Near infrared spectroscop Water Density Wood |
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