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基于闭环控制的多路激光自动化控制系统

张淑芳 刘江 吴健俊 张涛 冯兆池

张淑芳, 刘江, 吴健俊, 张涛, 冯兆池. 基于闭环控制的多路激光自动化控制系统[J]. 红外技术, 2021, 43(7): 629-634.
引用本文: 张淑芳, 刘江, 吴健俊, 张涛, 冯兆池. 基于闭环控制的多路激光自动化控制系统[J]. 红外技术, 2021, 43(7): 629-634.
ZHANG Shufang, LIU Jiang, WU Jianjun, ZHANG Tao, FENG Zhaochi. Multi-Channel Laser Automatic Control System Based on Closed-Loop Control[J]. Infrared Technology , 2021, 43(7): 629-634.
Citation: ZHANG Shufang, LIU Jiang, WU Jianjun, ZHANG Tao, FENG Zhaochi. Multi-Channel Laser Automatic Control System Based on Closed-Loop Control[J]. Infrared Technology , 2021, 43(7): 629-634.

基于闭环控制的多路激光自动化控制系统

基金项目: 

国家重大科研仪器研制项目 21527804

详细信息
    作者简介:

    张淑芳(1979-),女,山西人,副教授,博士,研究方向为嵌入式系统开发,机器视觉,人工智能。E-mail:shufangzhang@tju.edu.cn

  • 中图分类号: TP23

Multi-Channel Laser Automatic Control System Based on Closed-Loop Control

  • 摘要: 为了实现激光拉曼光谱仪光路的自动化控制,本文建立了基于MC9S12XEP100核心控制器的光路自动化控制系统。针对开环电机控制出现的精度低、易“丢步”、“堵转”等问题,本文设计了一种基于压力传感器的闭环控制算法,极大地提升了控制精度和系统稳定性,有效避免了电机堵转问题。实验结果表明:该控制系统可以实现多路光的任意调节、光路的接入与复位、闭环自检和上位机通信等功能。该系统所控制的位移误差精度在0.1 mm范围内,基本满足光路控制系统稳定可靠、高精度、抗干扰能力强等要求。
  • 图  1  多光路自动化控制系统示意图

    Figure  1.  Block diagram of multi-optical automatic control system

    图  2  多光路自动化控制系统原理图

    Figure  2.  Operation block diagram of multi-optical automatic control system

    图  3  电机、联轴器、升降台

    Figure  3.  Motor, coupling, lifting table

    图  4  电路接线方法

    Figure  4.  Circuit wiring method

    图  5  FSR薄膜压力传感器

    Figure  5.  FSR thin film pressure sensor

    图  6  主体算法框图

    Figure  6.  Main algorithm block diagram

    图  7  闭环自检功能算法框图

    Figure  7.  Closed-loop self-check function algorithm block diagram

    图  8  上位机人机交互界面

    Figure  8.  Host computer man-machine interface

    表  1  主控制器引脚功能

    Table  1.   Main controller pin function

    PIN Function Connection
    PB1 Serial Indicator1 -
    PB2 Serial Indicator2 -
    PB3 Serial Indicator3 -
    PK4 Control the direction of motor1 Direction end of stepper motor driver 1
    PB7 Main control board monitors the pressure
    signal 1
    D0 end of pressure sensor 1
    PA0 Stepper motor driver 2 common anode PULSE+ of driver2
    PA2 Stepper motor driver 2 common anode DIR+ of driver2
    PA4 Stepper motor driver 2 common anode ENA+ of driver2
    PA6 Direction control of stepping motor 2 DIR- of driver2
    PE2 Main control board monitors the pressure
    signal 2
    D0 of pressure sensor 2
    PA1 Stepper motor driver 3 common anode PULSE+ of driver23
    PA3 Stepper motor driver 3 common anode DIR+ of driver23
    PA5 Stepper motor driver 3 common anode ENA+ of driver23
    PA7 Direction control of stepping motor 3 D0 of pressure sensor 3
    PE4 Main control board monitors the pressure
    signal 3
    D0 of pressure sensor 3
    P1 PWM output pin 1 PULSE- of driver1
    P3 PWM output pin 3 PULSE- of driver2
    P5 PWM output pin 5 PULSE- of driver3
    TX0 Serial communication receiver Connect with the receiving end of
    communication interface
    RX0 Serial communication receiver Connect with the receiving end of
    communication interface
    下载: 导出CSV

    表  2  闭环自检测量结果

    Table  2.   Closed-loop self-test results  mm

    Numbers Start Theory Test
    1 70.0 35.0 35.0
    2 58.0 35.0
    3 51.0 35.0
    4 43.0 35.0
    5 38.0 35.0
    6 31.0 35.0
    7 25.0 35.0
    8 21.0 35.0
    9 18.0 35.0
    10 9.0 35.0
    Average 36.4 35.0
    下载: 导出CSV

    表  3  实验测量结果

    Table  3.   Experimental measurement results  mm

    Direction Coef Numbers Distance
    1 1 200 +10.0
    1 2 200 +5.0
    1 4 200 +2.5
    1 8 200 +1.2
    1 32 200 +0.6
    0 1 50 -2.5
    0 1 100 -5.0
    0 1 200 -10.0
    0 1 300 -15.0
    0 1 400 -20.0
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-10-14
  • 修回日期:  2021-01-05
  • 刊出日期:  2021-07-01

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