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相关概念视频

Mechanical Efficiency of Real Machines01:14

Mechanical Efficiency of Real Machines

760
The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
However, in reality, no machine can be truly ideal, and all of them experience some...
760

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相关实验视频

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Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
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使用单眼机器视觉自动测量机械零件的经济高效方法.

Vinicius V E Nogueira1,2, Luiz F Barca3, Tales C Pimenta2

  • 1Federal Institute of Paraná, Campo Largo 83607-140, Brazil.

Sensors (Basel, Switzerland)
|July 14, 2023
PubMed
概括

本研究介绍了一种自动化机器视觉系统,用于精确地测量机械零件的平面尺寸. 这种具有成本效益的原型提供了高精度和可重复性,增强了制造评估.

关键词:
接近距离的陆地摄影仪.计算机视觉 计算机视觉单眼视力 单眼视力 单眼视力平面测量的平面测量.

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科学领域:

  • 机械工程 机械工程
  • 计算机视觉 计算机视觉
  • 计量学 计量学 计量学

背景情况:

  • 机械部件的传统测量方法可能耗时且容易出现人为错误.
  • 自动化光学检查系统可以提高尺寸分析的效率和准确性.
  • 对于某些制造应用,现有的机器视觉解决方案可能受到成本或灵活性的限制.

研究的目的:

  • 开发和验证一个具有成本效益的自动化系统,用于使用机器视觉对机械部件精确的平面维度评估.
  • 证明系统对准确和可重复测量的能力,增强现有的手动流程.
  • 展示一个功能性原型,利用可访问的工业计算机视觉组件.

主要方法:

  • 使用了机器视觉配置与标准工业部件.
  • 实施了改进的子像素边缘检测算法,以提高测量精度.
  • 进行可追溯性测试和与校准测量机器进行比较.

主要成果:

  • 在测量尺寸块中实现了高精度,平均误差为0.008mm,标准偏差为0.0063mm.
  • 与校准机器相比,证明了循环样本评估的最大偏差为0.013毫米.
  • 验证了系统对平面维度评估的有效性和适用性.

结论:

  • 开发的原型成功自动化平面维度评估,具有高准确性和可重复性.
  • 该系统为制造业当前的机器视觉解决方案提供了具有成本效益和可访问性的替代方案.
  • 这种方法扩大了机器视觉的应用,特别是在成本或灵活性是限制的地方.