摘要
采用微波谐振腔微扰法测量植物叶片介电常数。实验采用三种不同植物的叶片,并分早、午、晚不同时间测量。通过对数据处理与分析得出叶片介电常数与矿物质的含量与种类有关,且植物叶片在不同的时间由于生理活动的不同,其介电常数也存在差异,从而影响到植物叶片在交变电场中行为的差异。
In this article, microwave cavity perturbation method was adopted to measure the dielectric constant of plant leaves .Three different kinds of leaves were used in this experiment, and the measurements were conducted at different times： rnoming, noon and night. Through processing and analyzing the data, the result indicated that the dielectric constant of leaves is related with the contents and types of mineral, and the dielectric constant of leaves is different because of the different physiology active at different time. Therefore it affected the difference of leaves＇ activities in alternating electrical field.
关键词
复介电常数
微扰法
叶片
complex dielectric constant
perturbation method
leaf
