使用数字图像相关性进行脱焦斑点成像,用于无镜头尖端和倾斜测量,并进行实验验证
Applied optics
|August 12, 2025
概括
本研究介绍了一种具有成本效益的光学仪器,用于使用失焦的斑点图案进行精确的角度测量. 它的性能与具有更广泛角度范围的自动聚合器相提并论,进步了光学计量学.
科学领域:
- 光学计量学 在光学计量学
- 仪器仪表工程 仪器仪表工程
背景情况:
- 传统的自动聚合仪广泛用于角测量,但可能昂贵,并且在角范围上有局限性.
- 在科学和工业应用中,需要具有成本效益和多功能角度测量解决方案.
研究的目的:
- 引入和评估用于角测量的新型光学仪器.
- 在不确定性和可重复性方面证明仪器的性能.
- 与传统方法相比,突出其成本效益和更广泛的角度范围.
主要方法:
- 该仪器使用一个失焦的斑点图案投射到样品上.
- 角度定向是通过使用相机分析捕获的反射斑点图案来确定的.
- 系统设计,操作原则和性能都经过了严格的评估.
主要成果:
- 开发的仪器实现了0.4μrad的不确定性水平和0.47μrad的可重复性.
- 它的性能与传统的自动聚合器相比略微可比.
- 与传统系统相比,观察到角度范围的显著优势.
结论:
- 失焦的斑点图案仪器是用于角测量的可行,成本高效的替代方案.
- 它的性能和更大的角度范围使其适用于各种光学计量学应用.
- 与现有技术相比,这种创新可以显著降低成本.
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