| 测量围护结构含水率的同面散射场式电容传感器设计 |
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| 引用本文： | 张君,许锦峰,姚恩涛,周克印,刘海青.测量围护结构含水率的同面散射场式电容传感器设计[J].航空计测技术,2008,28(1):7-11. |
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| 作者姓名： | 张君 许锦峰 姚恩涛 周克印 刘海青 |
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| 作者单位： | [1]南京航空航天大学自动化学院,江苏南京210016 [2]江苏省建筑科学研究院,江苏南京210018 |
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| 摘 要： | 目前常用的测量含水率的方法有微波法、红外线法和电容法.由于基于电容法的传感器具有分辨力高、响应速度快、体积小、结构简单等优点,被广泛应用.针对围护结构含水率测试深度的要求和测试特点,本文通过仿真和实验,对同面电容传感器探头的结构尺寸进行了优化设计,并采取了保护电极以提高其抗干扰能力;运用改进的充放电电容检测电路,设计出一种测量围护结构含水率的新型同面散射场式电容传感器,该传感器具有宽范围的测试深度和较高的测试灵敏度.
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| 关 键 词： | 围护结构 含水率 电容传感器 |
| 文章编号： | 1002-6061(2008)01-0007-05 |
| 修稿时间： | 2007年9月5日 |
Design of Uniplanar Scattering-Field Capacitance Sensors for Measuring Water Content of Building Inclosure |
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| ZHANG Jun,XU Jin-feng,YAO En-tao,ZHOU Ke-yin,LIU Hai-qing.Design of Uniplanar Scattering-Field Capacitance Sensors for Measuring Water Content of Building Inclosure[J].Aviation Metrology & Measurement Technology,2008,28(1):7-11. |
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| Authors: | ZHANG Jun XU Jin-feng YAO En-tao ZHOU Ke-yin LIU Hai-qing |
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| Institution: | 1.College of Automation Engineering;Nanjing University of Aeronautics & Astronautics;Nanjing 210016;China;2.Jiangsu Building Research Institute;Nanjing 210018;China |
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| Abstract: | At present,the common methods used for measuring water content are microwave method,infrared ray method and electrical capacitance method.The capacitance sensor has wide application.It is characterized by high resolution,rapid response speed and simple structure.In this paper,the size and structure of the uniplanar scattering-field capacitance sensors are optimally designed by simulation and experiment for test depth and testing feature with guard electrode for improving the anti-disturbance capability.A ne... |
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| Keywords: | building inclosure water content capacitance sensor |
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