LabVIEW圖控軟件于直流馬達(dá)風(fēng)扇桿旋轉(zhuǎn)角度控制之研究
本文以LabVIEW 圖控軟件撰寫程序，搭配光學(xué)式增量型編碼器，探討其編碼器輸入指令之操作，并制作直流馬達(dá)風(fēng)扇桿系統(tǒng)，設(shè)計驅(qū)動電路，利用增量型編碼器來量取風(fēng)扇桿旋轉(zhuǎn)角度信號，實際完成一套直流馬達(dá)風(fēng)扇桿角度控制系統(tǒng)。經(jīng)由DAQ 資料擷取卡進(jìn)行模擬輸出步階電壓，并量取風(fēng)扇桿之旋轉(zhuǎn)角度，測出系統(tǒng)參數(shù)，并設(shè)計閉回路PID 控制器來控制直流馬達(dá)的電流，以達(dá)到控制馬達(dá)轉(zhuǎn)速的功能，進(jìn)而控制風(fēng)扇桿的旋轉(zhuǎn)角度，達(dá)成風(fēng)扇桿旋轉(zhuǎn)角度控制。
關(guān)鍵詞：編碼器、直流馬達(dá)風(fēng)扇桿。
Abstract
In 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.