摘要
为了测量圆柱形容器内液位的高低,构造了一个带狭缝长直圆柱面电容器,依据液面高度与电容量成单调函数的关系,利用一个振荡器将电容量通过振荡周期测出,借助单片机计算出液位高度。
A capacitor is constructed for liquid height detection. This capacitor is used for an oscillator. The oscillator's frequency will be detected and then the liquid height will be calculated. All this is based on a single chip micro-computer system.
出处
《传感器世界》
2000年第9期4-7,共4页
Sensor World
关键词
液位测量
电极
振荡器
电容传感器
liquid height detection,electrode,capacitance,oscillator
