植物叶片厚度精密测量仪的研究

根据植物的茎和叶的几何尺寸参数与其水分之间存在直接、准确的对应关系，提出了利用电阻应变式和差动电感式2种传感器进行植物叶片厚度测量的新方法。在差动电感转换电路中，创新性的提出采用单片式集成电路作为转换电路。经实验证明，仪器具有良好的线性度、测量精度高、抗环境干扰能力强等优点，是组成一种新型的闭环节水灌溉控制系统的核心环节。

Research on the Precision Instrument of Plant Leaf Sickness

According to the direct accurate corresponding relation between the geometry size parameter and its water content of the plant leaf,a new method of the measurement of plant vane thickness is put forward by using resistance strain sensor and differential inductance sensor.In the transition circuit of differential inductance,an innovative method of adopting the integrated circuit of single chip as the transition circuit is proposed.Proved by the experiment,this instrument has many advantages such as good linear degree,high measuring precision and strong ability to resist environment interference etc.It is a kind of new-type closed loop system of water-saving irrigation.