基于ARM Cortex M7内核的高速振镜控制系统
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摘要
激光加工技术日益成熟,其技术的核心难点在于其振镜控制系统的设计,目前业界在激光振镜控制部分还存在一些问题。本文针对目前存在的功耗大、精度低、电路复杂等问题,研究一种基于ARM Cortex M7内核和XY2-100协议的高速振镜控制系统,有效降低控制信号传输过程中的衰减,并对激光固有的几何畸变提出一种有效的优化补偿方案,通过制作DEMO板和试验验证了整个系统的运行稳定性,在速度、精度方面比业界现有控制系统更胜一筹,满足实际加工要求,可实现每秒2万多次振镜偏转,位置控制准确,本系统具有较大应用前景。
The laser processing technology is becoming muchmaturer. Its core difficulty lies in the design of the galvanometer control system. At present, there are still some problems in the laser galvanometer control part of the industry. This paper aims at the resolution of the current problem of large power consumption, low precision, and complicated circuit. As a result, a high-speed galvanometer control system based on ARM Cortex M7 core is designed. This design effectively reduces the attenuation during control signal transmission based on the XY2-100 protocol and proposes an effective optimization compensation for the inherent geometric distortion of the laser. The program, through the production of DEMO plates and experiments to verify the stability of the entire system, the speed, accuracy is superior to the industry's existing control system, which meets the actual processing requirements, and can achieve more than 20,000 times per second galvanometer deflection, and is of accurate position control. Thus, the system has a large application prospects.
The laser processing technology is becoming muchmaturer. Its core difficulty lies in the design of the galvanometer control system. At present, there are still some problems in the laser galvanometer control part of the industry. This paper aims at the resolution of the current problem of large power consumption, low precision, and complicated circuit. As a result, a high-speed galvanometer control system based on ARM Cortex M7 core is designed. This design effectively reduces the attenuation during control signal transmission based on the XY2-100 protocol and proposes an effective optimization compensation for the inherent geometric distortion of the laser. The program, through the production of DEMO plates and experiments to verify the stability of the entire system, the speed, accuracy is superior to the industry's existing control system, which meets the actual processing requirements, and can achieve more than 20,000 times per second galvanometer deflection, and is of accurate position control. Thus, the system has a large application prospects.
引文
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[2]王文毅,吕勇,陈青山,等.基于XY2-100协议的振镜控制转换板的设计与实现[J].自动化与仪器仪表,2014,(12).
[3]张荣,张秋鄂,李永正.高速数字扫描振镜驱动卡设计及研究[J].应用激光,2013,(05).
[4]王晓初,朱照杨,张国平.高速振镜伺服驱动的PID加前馈控制[J].微电机,2013,(05).
[5]梁文斌,欧少敏.基于USB的激光振镜打标卡的研究和设计[J].大众科技,2017,(04).
[6]宫元九,夏斐,孙嘉兴.激光标刻系统几何失真的校正方法[J].电子测量技术,2014,(11).
[7]万志,杜温锡.振镜二维扫描的图形畸变校正和曝光量补偿[J].光学精密工程,2000,(02).