高频对8种泡桐木材介电性质的影响

The Effect of High-frequency on the Dielectric Properties of Paulownia Wood

本文研究了高频电场中频率与8种泡桐木材介电性质的关系;泡桐木材结构对介电性质的影响。得出频率变化对泡桐木材介电常数、电阻率影响很小,对功率损耗角影响较大;密度对泡桐木材介电性质影响不大。建议在高频加热技术的应用中,利用木材功率损耗角极大值和极小值的频率,以达到良好的加工和节能效果。

This report presents the results of the experiments on the influence of high-frequency and wood structure to the dielectric properties of Paulownia wood.The results show that the effect of frequency on loss tanδ is big, but small on dielectric constant and resistance; the effect of wood density on dielectric properties is small, It is Suggested that good heating effect with low energy comsumption can be obtained by using the frequency at max./min. loss tanδ.