纤维饱和点

经实验观察，用电测法测量木材纤维饱和点近区段含水率会出现测量值突然偏离真值的现象，即出现测量盲点。

Experimental observation shows measuring MC of lumber FSP near section by electricity measurement will appear measurements ' sudden deviation from the true value phenomenon , namely " blind spots " .

并且提出了一种利用木材中水分的介电特性量随温度的变化关系来确定木材纤维饱和点的方法。

By considering the relationship of the dielectric characteristic parameter resect to temperature , the method to determine the moisture content in fiber saturation point was proposed .

木材纤维饱和点含水率的计算模型

A Model to Calculate the Moisture Content of Wood at Fiber-Saturation Point

实验结果显示，浮压干燥比常压干燥能明显加快木材内水分迁移的速率，特别是在低含水率阶段（纤维饱和点以下）更明显。

When the moisture content is below fibre saturation point , the movement of absorbed water is subdivided into two parts : one i.

根据曲线性质和试验数据的特点，找出曲线上变化的关键点，定义为竹材纤维饱和点。

According to the equation and testing figure , the critical point in the curve is found out and is further defined as fiber saturation point ( FSP ) .

无论何种微波能辐射方式，纤维饱和点以上的平均干燥速率和降水率都大于纤维饱和点以下的平均干燥速率。

The average drying rate and microwave energy utilization efficiency above the fiber-saturation point ( FSP ) was higher than below the FSP no matter what radiation pattern was used .

试验还表明，含水率低于纤维饱和点的木方，水煮前进行水浸泡处理能改进软化效果。

The test also indicates that if the block which moisture contain was below the fibrous saturation point was immersed in water before boiling , the better softening result was gained .

在干燥的初始或早期阶段，板材的外层散失水分，一旦达到纤维饱和点，外层就开始收缩。

During the initial or early of drying , the outer shell of a board loses its moisture and once the fiber saturation point is reached the surface layer begins to shrink .

在纤维饱和点以下时，木材内部吸着水的迁移可分为：水蒸汽压力梯度下的扩散迁移和由于干燥介质压力的波动而引起的浮动压力下的迁移两个部分。

When the moisture content is below fibre saturation point , the movement of absorbed water is subdivided into two parts : one is diffusion transfer due to the vapor pressure gradient , the other is moisture movement caused by the pressure fluctuation due to the variation of medium .