从叶轮式微流量传感器的结构及工作原理出发,设计了该传感器的电容检测电路.该电路由振荡电路和数字鉴频等单元电路构成,通过PSPICE仿真,实际搭制及调试,实现了检测电路的功能.
Based on the structure and the working principle of the wheel-type flow sensor, the capacitive measuring circuits of the sensor are designed. The circuits include oscillator and digital frequency discriminator. Through SPICE modeling, practical fabrication and debugging, the measuring circuits can work well .