LabVIEW图控软件于直流马达风扇杆旋转角度控制的研究

LabVIEW图控软件于直流马达风扇杆旋转角度控制之研究本文以LabVIEW 图控软件撰写程序，搭配光学式增量型编码器，探讨其编码器输入指令之操作，并制作直流马达风扇杆系统，设计驱动电路，利用增量型编码器来量取风扇杆旋转角度信号，实际完成一套直流马达风扇杆角度控制系统。经由DAQ 资料撷取卡进行模拟输出步阶电压，并量取风扇杆之旋转角度，测出系统参数，并设计闭回路PID 控制器来控制直流马达的电流，以达到控制马达转速的功能，进而控制风扇杆的旋转角度，达成风扇杆旋转角度控制。关键词：编码器、直流马达风扇杆。AbstractIn this paper, we discuss the setTIng procedures for the encoder input by using LabVIEW graphical language.First, a DC motor propeller pendulum is developed to demonstrate the design of the driving circuit and the idenTIficaTIon of the system transfer funcTIon, by using the optical incremental encoder to measure the signal of the rotation angle of the pendulum. Then, a program is implemented to achieve the PID control of the system.The output control signal is generated to the motor driver circuit through the analog channel of DAQ card, and the motor speed can be controlled by changing the analog output voltage to control the rotation angle of the pendulum.Keywords: encoder, dc mot or pr opeller pendul um.