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介绍了一种采用斜光学三角形测量结构和基于虚拟精密测量基准的太阳帆板平面度无接触测量系统 .首次提出斜光学三角形测量结构 ,使得测量系统的测量面积和分辨率大大提高 ,从而实现了对大面积平面平面度的高精度无接触测量 .提出的虚拟精密基准的建模与误差补偿技术 ,解决了在非精密基准上实现精密测量这一难题 ,使得所研制的测量系统利用现有平台可实现对太阳帆板平面度的高精度测量 .此外 ,对测量光斑位置估值精度与光斑图像尺寸大小和能量分布之间的定量关系进行了分析 ,为激光光斑的优化设计提供了理论依据 .实际测量结果表明 ,该测量系统对面积为 2 581mm× 1 755mm太阳帆板的平面度测量精度达 0 .0 2mm(RMS)
A kind of non-contact measurement system of solar flatness based on diagonal optical triangulation structure and virtual precision measurement standard is introduced.A oblique optical triangulation structure is proposed for the first time, which greatly improves the measurement area and resolution of the measurement system, High-precision non-contact measurement of large area flatness The proposed virtual precision reference modeling and error compensation technology solves the difficult problem of precision measurement on non-precision reference, and makes the developed measurement system utilize the existing platform Which can realize the high-precision measurement of the flatness of the solar panel.In addition, the quantitative relationship between the position accuracy of the measuring spot and the size and energy distribution of the spot image is analyzed, which provides a theoretical basis for the optimal design of the laser spot. The actual measurement results show that the measuring system has a flatness measurement accuracy of 0.02 mm (RMS) for an area of 2 581 mm × 1 755 mm solar panels,