针对现阶段激光器控制系统集成度不足,功能相对单一的现象,基于STM32设计了一种智能控制系统。系统搭载了基于EMWIN的人机交互界面,实现了脉冲激光器触摸屏控制。基于开发系统的高频时钟,产生多路脉冲宽度调制信号,实现了脉冲激光器的高精度控制:抽运电压0～1000 V连续可调;脉冲频率1～200 Hz多档位可调;脉冲宽度0～1000 μs连续可调,精度为20 μs。 电压与脉宽的调节均支持微调与粗调。系统搭载了温度传感器和超声波测距模块,能实时监控激光器工作温度和划分安全操作区域。同时设计了信号测量模块,采样频率为1～100 kHz。设计实现了激光器控制和测量的一体化,及激光器工作的过程控制与安全监控。

An intelligent control system based on STM32 is designed aimed at prominent problem of the lack of integration of the laser control system and relatively single function. The system is equipped with a human-computer interaction interface based on EMWIN, which realizes the pulse laser touch screen control. Based on the system’s high-frequency clock, multi-channel pulse width modulation signal is generated to achieve high-precision control of the pulsed laser: the pumping voltage is 0～1000 V, which enables continuous adjustment. The pulse frequency is from 1 to 200 Hz, and the adjustment of multiple gear positions can be realized. The pulse width is 0～1000 μs, which is continuously adjustable with an accuracy of 20 μs. Both voltage and pulse width adjustments support fine-tuning and coarse tuning. The temperature sensor and ultrasonic ranging module are equipped on the system to monitor the laser operating temperature and divide the safe operating area in real-time.The signal measurement module is also introduced into the system with a sampling frequency of 1 to 100 kHz. The design realizes the integration of laser control and measurement, as well as process control and safety monitoring of laser operation.