同面多极电容感应式冰层厚度传感器的设计
首发时间:2012-06-07
摘要:同面多极电容感应式冰层厚度传感器是基于空气、冰与水不同的介电特性,通过对空气层、冰层和冰下水层电容值进行分层测量,从而实现对冰层厚度与水位高度自动检测的一种新型冰情检测传感器。主要融合了单片机技术和电子信息采集,处理,转换技术。文章利用Maxwell软件对其机理进行仿真,对实验数据进行分析,论证了同面多电极电容感应式冰厚传感器的测量原理;通过分析该传感器在黄河内蒙段的现场检测数据,证明该传感器具有准确度高、误差小、稳定等优点,并能在低温、辐射和强烈振动等恶劣环境下工作,非常适合野外环境中使用。
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Design of a Coplanar Multi-Electrode Capacitance Sensing Type Sensor for Ice Thickness Detection
Abstract: A coplanar multi-electrode capacitance sensing type ice thickness sensor is a new kind of ice situation detection sensor Which is based on different capacitance characteristic between air, ice and water. It can realize detecting ice thickness and water level under ice automatically through measuring the capacitance of different layers of air, ice and water under ice. It is mainly combined with single chip microprocessor and electronic information collection, processing and transformation technology. In this paper mechanism of sensor has been simulated with the Maxwell software and experiment data are also analysed, the measurement principal of coplanar multi-electrode capacitance sensing type ice thickness sensor is demonstrated; Through analysis of the scene experiment data gotten in the Yellow River in the Inner Mongolia, that proved the sensor has pin-point accuracy、close tolerance and high reliability and so on advantages, and can be used in the low temperature、radiation and strongly vibration etc such bad environment, also be good for the field environment..
Keywords: capacitance sensing sensor ice thickness dielectric characteristic
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