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相关概念视频

Overview of Electron Microscopy01:25

Overview of Electron Microscopy

The wavelengths of visible light ultimately limit the maximum theoretical resolution of images created by light microscopes. Most light microscopes can only magnify 1000X, and a few can magnify up to 1500X. Electrons, like electromagnetic radiation, can behave like waves, but with wavelengths of 0.005 nm, they produce significantly greater resolution up to 0.05 nm as compared to 500 nm for visible light. An electron microscope (EM) can create a sharp image that is magnified up to 2,000,000X.
Electro-mechanical Systems01:19

Electro-mechanical Systems

Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...

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相关实验视频

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基于细分模型的电磁微镜系统的内部模型控制方案.

Ruili Dong1, Qingyuan Tan2, Yonghong Tan3

  • 1College of Information Science and Technology, Donghua University, Shanghai 201620, China.

ISA transactions
|June 11, 2025
PubMed
概括

一个新的细分内部模型控制 (SIMC) 策略有效地通过使用模型组合来管理电磁微镜系统 (EMMS). 这种方法解决了复杂的非线性动态,提高了偏斜角度控制的准确性.

关键词:
电磁微镜电子镜子频率分割组合模型的频率分割组合模型.这是一种歇斯底里症.内部模型控制的内部模型控制.

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科学领域:

  • 控制系统工程 控制系统工程
  • 非线性动力学是一种非线性动力学.
  • 微光学是一种微光学.

背景情况:

  • 电磁微镜系统 (EMMS) 呈现出复杂的非线性动态,包括低阻尼振荡和取决于速率的歇斯底里.
  • 在EMMS中精确控制偏斜角度对于各种光学应用至关重要.
  • 现有的控制策略可能会与EMMS固有的非线性作斗争.

研究的目的:

  • 为电磁微镜系统 (EMMS) 开发一种新的细分内部模型控制 (SIMC) 方案.
  • 为EMMS建立一个反向模型,以考虑低压振荡和取决于速率的歇斯底里.
  • 为了提高EMMS曲角度控制的准确性和稳定性.

主要方法:

  • 提出了一个细分组合模型,包括基于运行频率细分的加权子模型.
  • 引入了平滑因子函数,以尽量减少子模型切换期间的动态错误.
  • 粒子集群优化 (PSO) 用于确定最佳的频率分割点.
  • 基于小增益定理的两度自由度过器设计集成到SIMC方案中.

主要成果:

  • 拟议的细分组合模型准确地描述了EMMS的特征,包括非线性.
  • 与传统方法相比,使用平滑因子的SIMC策略显著减少了动态错误.
  • 由PSO确定的最佳频段分段点可以提高模型性能.
  • 实验验证证明了EMMS偏斜角度控制所建议的控制策略的有效性.

结论:

  • 开发的细分内部模型控制 (SIMC) 方案为控制EMMS等复杂的非线性系统提供了有效的解决方案.
  • 拟议的细分组合模型和平滑因子方法提高了控制精度,并减少了切换引起的错误.
  • 这种方法为精确控制电磁微镜系统提供了有前途的进步.