| 植物水分无损监测传感器电路的仿真分析 |
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| 引用本文： | 张慧萍.植物水分无损监测传感器电路的仿真分析[J].节水灌溉,2010(2). |
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| 作者姓名： | 张慧萍 |
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| 作者单位： | 重庆交通大学河海学院,重庆,400074 |
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| 摘 要： | 在设计了植物水分监测传感器电路的基础上,用Multisim8软件对基于介质连续变化的电容式无损监测传感器做了分块和整体的仿真分析,仿真表明,用输入电桥电容的微变化模拟植物水分的微变化,电路各部分均能无失真输出,整体电路能够较准确地反映植物水分的变化,传感电容相对于平衡电容的变化量与传感器输出电信号之间成线性相关。仿真过程中,传感器最后输出不大于5 V,各运放在统一5 V电源的供电条件下,无饱和失真现象,总体电路设计合理,基本符合要求,能够满足单独测量或用于监测系统模/数转换的需要。
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| 关 键 词： | 植物水分 无损监测 传感器 仿真分析 |
Simulation Analysis of Sensor Circuit of Non-destructive Monitoring of Plant Moisture |
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| ZHANG Hui-ping.Simulation Analysis of Sensor Circuit of Non-destructive Monitoring of Plant Moisture[J].Water Saving Irrigation,2010(2). |
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| Authors: | ZHANG Hui-ping |
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| Institution: | College of Hehai/a>;Chongqing Jiaotong University/a>;Chongqing 400074/a>;China |
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| Abstract: | According to the three water problems in Cangzhou,which are the serious flood disaster,drought and water shortage,and water pollution,combining with the characteristics of water resources and the situation of water conservancy facilities in Cangzhou,this paper studies the comprehensive utilization model of rain-flood resources,in which the rivers,reservoirs,ponds and lakes in Cangzhou are fully utilized to intercept and store the rain-flood resources,so as to achieve the goal of sustainable utilization of w... |
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| Keywords: | plant moisture on-destructive monitoring sensors simulation analysis |
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