Design of cloud water content sensor based on expert PID control
A portable micro cloud water content sensor based on hotline method is designed.The sensor probe uses a new structure of annular heating plate and platinum resistance for temperature measurement,which ensures the uniformity of heating and the accuracy of temperature measurement.Through theoretical formula derivation and fluid simulation,the feasibility of sensor design is further verified,and the function relationship between cloud water content and heating power of heating plate is obtained.32-bit STM32F103C8T6 chip is used as the core,its performance ensures stability of the sensor system.By expert PID control algorithm,windward temperature of the sensor is controlled in real-time.The simulation results show that the expert PID system has faster response speed and better adaptability.A wind tunnel test platform is set up for experimental test.Through experimental measurement,when the cloud water content value is 0.5 g/m3,the heating power of the heating plate is 1.4 W,and the actual computational value is 0.58 g/m3,which meets the design requirements.
cloud water contentfluid simulationexpert PID algorithmwind tunnel system
万方数据
维普
