3D shape measurement of complex transparent liquid surfaces using monoscopic deformed fringe transmissometry | |
Zhong ML1; Huang XF(黄先富)2,3; Dong HM1; Liu ZW1 | |
发表期刊 | Measurement Science and Technology |
2019-09 | |
卷号 | 30页码:115201 |
ISSN | 0957-0233 |
摘要 | Abstract The measurement of transparent liquid surface topography is of great importance in many fields such as hydrodynamics of water-walking insects, liquid sloshing and flotation, etc. However, techniques for measuring these specular and rheological surfaces, especially for surfaces with floating objects, have been lacking. Here we report a monoscopic deformed fringe transmissometry for measuring complex transparent liquid surfaces with theoretical sensitivity up to 0.40 μm. The basic principle is to reconstruct the 3D liquid surfaces by the mathematical relations between the in-plane fringe phase-shift and the out-of-plane shape of the liquid surface. It only needs to project a single fringe pattern from the bottom of the liquid and capture a single deformed image from above. A sub-pixel sampling moiré method is proposed to process the captured fringe pattern to obtain the precise phase component and the displacement field, which is then used to reconstruct the 3D shape of the liquid surface. The discontinuous fringes in the pattern also settled by covering an extracted mask to the displacement filed. The verification test of floating 3D printed characters indicates that this new technique is robust in measuring the 3D shape of complex liquid surface. The developed technique provides a versatile tool to explore interfacial phenomena such as wetting, floating, surface wave, etc. |
关键词 | sampling moiré method phase-shifting displacement field fringe pattern |
DOI | 10.1088/1361-6501/ab3019 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000484512400001 |
论文分区 | 二类 |
力学所作者排名 | 1 |
RpAuthor | 黄先富 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/79503 |
专题 | 非线性力学国家重点实验室 |
通讯作者 | Huang XF(黄先富); Liu ZW |
作者单位 | 1.School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China 2.State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China 3.School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China |
推荐引用方式 GB/T 7714 | Zhong ML,Huang XF,Dong HM,et al. 3D shape measurement of complex transparent liquid surfaces using monoscopic deformed fringe transmissometry[J]. Measurement Science and Technology,2019,30:115201. |
APA | Zhong ML,Huang XF,Dong HM,&Liu ZW.(2019).3D shape measurement of complex transparent liquid surfaces using monoscopic deformed fringe transmissometry.Measurement Science and Technology,30,115201. |
MLA | Zhong ML,et al."3D shape measurement of complex transparent liquid surfaces using monoscopic deformed fringe transmissometry".Measurement Science and Technology 30(2019):115201. |
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