Research On Control System For Experimental Platform Based On Diode Pumped Rare Gas Laser

Diode pumped rare gas lasers have the advantages of high output power and high pulse energy,good beam quality,high quantum efficiency,good transmission characteristics between atmosphere and optical fiber,high processing efficiency.It is the future of important light sources in high-energy laser weapons,space energy transmission,remote laser processing and other fields.It has been widely attention both at home and abroad.The control system is one of the key technologies of the laser.This paper systematically studies the components,hardware circuit,control system software and laser debugging of diode pumped rare gas lasers control system.The main contributions are as follows:(1)The overall control scheme of diode pumped rare gas lasers experiment system has been designed.The working principle of the experimental system is introduced.The control system of the discharge system and the pump light system is designed by studying the discharge part and pump light part of diode pumped rare gas laser experiment system.(2)The LWGY turbo flowmeter has been chosen as the flow sensor of the water cooling system and the NTC thermistor as the temperature sensing sensor through the analysis of diode pumped rare gas laser experiment system.Siemens S7-200 PLC as the main controller of the control system,PLC control procedures has been prepared,and the program of laser power control subroutine has been elaborated,while the program used in the core module has a detailed description.(3)In order to achieve real-time monitoring of voltage,current,air pressure,laser power and data storage to subsequent experimental data analysis.In this paper,we choose the configuration Kingview 6.55 as PC control software,through Kingview software designed to achieve diode pumped rare gas laser experimental platform control,and achieved real-time display and monitoring of laser power,and achieve data acquisition and storage for later experimental data analysis.(4)Through the output power test,system stability test of laser and other methods to complete the host computer software and hardware equipment debugging.Through the PID algorithm analysis,in the PLC program preparation,repeatedly adjusted the PID proportional coefficient,integral coefficient,differential coefficient to achieve laser power stable output.