一个基于隐形笔的坐标测量系统,通过缩放的正写投影来测量坐标
Joshua A Gordon1, Steven S Borenstein2
1Communications Technology Laboratory, National Institute of Standards and Technology, Boulder, CO 80305, United States.
Precision engineering
|October 23, 2024
概括
研究人员开发了一种新的非接触式3D坐标测量系统 (PiCMS),使用一种名为Pixel Probe的隐形笔. 该系统可实现高精度的中/微尺度测量,从而实现精确的3D对象分析.
科学领域:
- 计量学 计量学 计量学
- 计算机视觉 计算机视觉
- 光学工程是指光学工程.
背景情况:
- 传统的3D坐标测量系统通常需要物理接触,这限制了它们对微妙或难以接近的物体的应用.
- 激光追踪器提供远程测量,但在较小的尺度上缺乏精度.
研究的目的:
- 引入一种新的非接触3D坐标测量系统 (PiCMS),用于高精度测量中/微尺度物体.
- 展示一种创建"隐形笔" (Pixel Probe) 的方法,用于精确的空间映射.
主要方法:
- 通过三焦相机系统利用球形安装反射器 (SMR) 的正写投影来创建Pixel Probe.
- 将Pixel Probe与激光追踪器和校准的XYZ阶段集成为一个完整的测量系统.
- 采用多视图几何视觉理论用于系统校准和操作.
主要成果:
- 实现了系统分辨率和准确度,在中/微尺度对象的20微米以上.
- 证明了非接触式测量能力,超出了单独的激光追踪器的范围限制.
- 通过点击界面成功执行了概念验证的2D和3D对象测量.
结论:
- 开发的Pixel Probe和PiCMS为3D坐标测量提供了一个简单,有效和准确的非接触式解决方案.
- 该系统克服了现有技术的局限性,特别是在小规模计量方面.
- 这种方法在需要精确的3D测量的各种领域都有潜在的应用.
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