现代电子技术2016，Vol.39Issue(12)：1-5,5.DOI:10.16652/j.issn.1004-373x.2016.12.001
基于CAD光相位模型的数字全息检测方法研究
Research on digital holographic detection method based on CAD optical phase model
摘要
Abstract
Aiming at the phase jumps in 3D detection of digital holographic precision mechanical structure,and on the ba⁃sis of the analysis of the generating mechanism of phase wrapping,a new method is proposed to establish the 3D computer aided design (3D⁃CAD) optical phase model of the measured object and conduct for phase unwrapping. The 3D⁃CAD model is pro⁃cessed with point cloud to construct the phase distribution measurement model,and obtain the phase map of the measured ob⁃ject. The holographic phase picture of the measured object is taken by means of the established dual⁃wavelength digital holo⁃graphic experiment system,and conducted for initial alignment and position perfect alignment with the model’s phase diagram. The difference value between the wrapped phase and its corresponding true phase of the holography diagram is calculated to ac⁃quire the unwrapped phase of holographic measurement. The measured objects with different surface topography were respective⁃ly used in simulation and experiment. The results indicate that the proposed method is effective to detect the precision structure.关键词
精密机械结构/数字全息/相位解包裹/CAD模型/精确配准Key words
precision mechanical structure/digital holography/phase unwrapping/CAD model/accurate registration分类
信息技术与安全科学引用本文复制引用
肖文,李玉旺,潘锋..基于CAD光相位模型的数字全息检测方法研究[J].现代电子技术,2016,39(12):1-5,5.基金项目
国家自然科学基金资助 （）
