超声电机直驱的电动物镜控制方法
发布时间：2018-07-20 18:35
【摘要】：针对超声电机直接驱动的显微镜物镜为满足系统整体结构紧凑、快速和准确定位的需求,采用小型光电耦合器设计了位置检测传感器,配合遮挡片实现了物镜位置和物镜转换器运动方向的检测。采用传统比例-积分-微分控制(proportion-integral-derivative control,简称PID)和模糊控制提出了并行切换控制策略,将两者结合建立了宏微相融合的预测控制方法,实现了物镜转换器的高精度、快速切换控制。在嵌入式控制系统中实现了所设计的控制算法和策略,并进行了物镜自动切换控制实验。实验结果显示,采用笔者提出的定位结构和控制方法,电动物镜转换器的重复定位误差小于0.015°,定位时间小于3s,满足自动显微镜系统中对电动物镜转换器重复定位精度的要求。
[Abstract]:In order to meet the need of compact, fast and accurate positioning of the system, a position detection sensor is designed by using a small photoelectric coupler, which is directly driven by an ultrasonic motor. The position of the objective lens and the moving direction of the objective converter are detected with the occluder. The parallel switching control strategy is proposed by using the traditional proportion-integral-derivative control (pid) and fuzzy control. A predictive control method combining macro and micro is established. The high precision and fast switching control of the objective lens converter is realized. The designed control algorithm and strategy are implemented in the embedded control system, and the objective lens automatic switching control experiment is carried out. The experimental results show that by using the positioning structure and control method proposed by the author, the repeat positioning error of the electric objective lens converter is less than 0.015 掳and the positioning time is less than 3 s, which meets the requirements of the precision of the electric objective lens converter in the automatic microscope system.
【作者单位】： 南京航空航天大学机械结构力学及控制国家重点实验室;
【基金】：国家自然科学基金重大研究计划资助项目(91223201);国家自然科学基金面上资助项目(51575260) 南京航空航天大学科研基地创新创优基金资助项目(NJ20160001) 江苏高校优势学科建设工程基金资助项目
【分类号】：TH742
本文编号：2134396
[Abstract]:In order to meet the need of compact, fast and accurate positioning of the system, a position detection sensor is designed by using a small photoelectric coupler, which is directly driven by an ultrasonic motor. The position of the objective lens and the moving direction of the objective converter are detected with the occluder. The parallel switching control strategy is proposed by using the traditional proportion-integral-derivative control (pid) and fuzzy control. A predictive control method combining macro and micro is established. The high precision and fast switching control of the objective lens converter is realized. The designed control algorithm and strategy are implemented in the embedded control system, and the objective lens automatic switching control experiment is carried out. The experimental results show that by using the positioning structure and control method proposed by the author, the repeat positioning error of the electric objective lens converter is less than 0.015 掳and the positioning time is less than 3 s, which meets the requirements of the precision of the electric objective lens converter in the automatic microscope system.
【作者单位】： 南京航空航天大学机械结构力学及控制国家重点实验室;
【基金】：国家自然科学基金重大研究计划资助项目(91223201);国家自然科学基金面上资助项目(51575260) 南京航空航天大学科研基地创新创优基金资助项目(NJ20160001) 江苏高校优势学科建设工程基金资助项目
【分类号】：TH742
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