【摘要】 介绍了近红外光谱分析技术应用于测量木材纤维长度的基本原理及流程。采用化学计量学中的偏最小二乘和完全交互验证法,通过建立了我国人工林造纸针叶材湿地松和阔叶材滩地72杨木材样品近红外光谱与纤维长度实验值之间的校正模型,来预测相应树种木材的纤维长度。模型的相关指标表明,近红外光谱分析技术可以快速准确地对这两种木材的纤维长度进行预测。更多还原

【Abstract】 The principle and approach for estimating wood fiber length using Near Infrared Spectroscopy (NIR) were introduced. In this method, the partial least square (PLS) and full cross validation in chemometrics were used to establish the calibration models for predicting the fibers length of slash pine (softwood) and poplar (hardwood). Their model parameters showed that NIR spectroscopic technique can rapidly and accurately predict the fibers length of these two wood species.更多还原