| 何沐,刘聪*,尹卓异,周琪,常志伟,金忠.用于高精度离面位移测量的相机阵列栅线投影测量技术[J].实验力学,2021,36(5):609~616 |
| 用于高精度离面位移测量的相机阵列栅线投影测量技术 |
| Fringe projection profilometry with camera array for high-precision out-of-plane displacement measurement |
| 投稿时间：2020-06-08 修订日期：2020-08-17 |
| DOI：10.7520/1001-4888-20-113 |
| 中文关键词: 相机阵列 栅线投影 离面位移测量 高精度测试 |
| 英文关键词:camera array fringe projection profilometry out-of-plane displacement measurement high precision measurement |
| 基金项目:国家自然科学基金(11802132)；江苏省自然科学基金(BK20180446)；山东省自然科学基金(ZR2018BF001)；中国博士后科学基金(2020M671493, 2019M652433)；江苏省博士后科研资助计划项目、国家级大学生创新创业训练计划项目(201910288051Z) |
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| 中文摘要: |
| 栅线投影测量技术以其无损、非接触、高精度、全场测量等优点，被广泛应用于离面位移测量，但是受光学和数字图像分辨率的限制，随着测量范围的增大，测量结果的空间分辨率以及离面位移测量精度都会相应降低，难以实现大视场下高精度测量。为了解决这一问题，本文提出了基于相机阵列的栅线投影测量技术，通过理论分析研究了相机阵列系统的组成和实现原理，并通过十字梁中心受集中载荷的实验和平板倾斜实验，验证了该系统的测量精度。 |
| 英文摘要: |
| The fringe projection profilometry is widely used in the measurement of out-of-plane displacement due to its advantages of non-destructive, non-contact, high-precision and full-field measurements. However, due to the limitations of optics and digital image resolutions, as the measurement area increases, the spatial resolution of measurement results and the accuracy of out-of-plane displacement measurement will decrease accordingly, making it difficult to achieve high-precision measurement in a large field of view. In order to solve this problem, the fringe projection profilometry based on camera array is proposed. The composition and the implementation principle of the system are studied, and the measurement accuracy of the system is verified through the concentrated load at the center of the cross beam and the flat plate tilting experiments. |
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