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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Shape measurement of small objects using LCD fringe projection with phase shifting
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Shape measurement of small objects using LCD fringe projection with phase shifting

机译：使用带有相移的LCD条纹投影来测量小物体的形状

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摘要

This paper describes the use of optical fringe projection method for three-dimensional shape measurement of small objects. In this method, sinusoidal linear fringes are projected on the object surface by a programmable liquid crystal display (LCD) projector and a long working distance microscope (LDM). The image of the fringe pattern is captured by another LDM and a CCD camera and processed by phase-shifting technique. A simple procedure is described which enables calibration of the optical setup for subsequent quantitative measurement of unknown object shapes. The method developed can also be applied to the measurement of the warp of a small component under thermal loading. This method is relatively simple and accurate, and is capable of conducting fully automated measurements.
机译：本文介绍了使用光学条纹投影方法对小物体进行三维形状测量的方法。在这种方法中，正弦线性条纹通过可编程液晶显示器（LCD）投影仪和长工作距离显微镜（LDM）投射在物体表面上。条纹图案的图像由另一个LDM和CCD相机捕获，并通过相移技术进行处理。描述了一个简单的过程，该过程能够校准光学设置，以便随后对未知物体形状进行定量测量。所开发的方法还可以应用于热负荷下小部件翘曲的测量。该方法相对简单和准确，并且能够进行全自动测量。

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