| 近红外光谱法预测粗皮桉木材气干密度的影响因素分析 |
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| 作者姓名： | Zhao RJ Huo XM Shangguan WW Wang YR |
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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： | 中国林业科学研究院基本科研业务费专项项目(CAFYBB2008008); 国家自然科学基金重点项目(30730076)资助 |
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| 摘 要： | 采用近红外光谱分析技术,对粗皮桉木材气干密度校正模型的影响因素进行比较研究.使用直接测量法测量了粗皮桉木材的气干密度,并用近红外光谱仪采集试样的近红外漫反射光谱,对不同切面、厚度、含水率和粗糙度的粗皮桉木材试样的原始光谱进行二阶导数预处理并选择一定光谱段建立回归模型.以50～140个试样作为校正集建立木材气干密度的偏最...
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| 关 键 词： | 近红外光谱 粗皮桉木材 气干密度 影响因素 |
Influence factor for prediction of air-dry density of Eucalyptus pellita by near infrared spectroscopy |
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| Zhao RJ,Huo XM,Shangguan WW,Wang YR.Influence factor for prediction of air-dry density of Eucalyptus pellita by near infrared spectroscopy[J].Spectroscopy and Spectral Analysis,2011,31(11):2948-2951. |
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| Authors: | Zhao Rong-Jun Huo Xiao-Mei Shangguan Wei-Wei Wang Yu-Rong |
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| Institution: | ZHAO Rong-jun,HUO Xiao-mei,SHANGGUAN Wei-wei,WANG Yu-rong Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100091,China |
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| Abstract: | Near infrared spectroscopy(NIR)technique was applied to compare the influence factors of Eucalyptus pellita's air-dry density.Air-dry density of eucalypt wood was tested by direct measurement.After collecting the near infrared reflectance spectra of samples in different section and with different thickness,moisture content and roughness,the NIR spectra were preprocessed with the second-derivative and the regression models were built in certain spectra.The calibration models were established using 50~140 sam... |
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| Keywords: | Words near infrared(NIR) spectroscopy Wood of Eucalyptus pellita Air-dry density Influence factor |
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