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- W3170251957 abstract "With the increasing miniaturization of electronic products, fanless design is required. The volume of electronic components, especially the height, is critical to the structural design of electronic devices. This paper proposes the design of on-line height measurement equipment based on commercial charge-coupled device (CCD), analyses the principle of height measurement of components, and explains the system composition and working principle of the measurement system. Moreover, it presents a comparative analysis of common methods for determining the center position, which include circle fitting, the gray centroid and extended method or Gaussian fitting, which generally lead to diverse results. The experimental results show that Gaussian fitting is better than other methods under realistic conditions, a three-dimensional model of the components is provided, and the error factors that affect measurement are analyzed." @default.
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- W3170251957 date "2021-05-01" @default.
- W3170251957 modified "2023-09-27" @default.
- W3170251957 title "Low-cost design of a PCB imaging system based on laser triangulation" @default.
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- W3170251957 doi "https://doi.org/10.1088/1742-6596/1920/1/012090" @default.
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