Development of highly accurate dynamic 3D-PIV based on digital holography and its applications
基于数字全息的高精度动态3D-PIV研制及其应用
基本信息
- 批准号:17560148
- 负责人:
- 金额:$ 1.79万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2005
- 资助国家:日本
- 起止时间:2005 至 2006
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In this research, a highly accurate dynamic PIV technique has been developed for measuring three velocity components in a three dimensional flow field with a single camera, and its performance and measurement accuracy have been evaluated by experiment and numerical simulation. The proposed method is based on digital holography with coherent illuminating light and a video camera. First, the optical system with a high-speed CMOS camera is set up to easily capture the motion of tracer particles with higher time-resolution and to measure three components of velocity in three dimensional space. Then the information of relative phase is employed for image reconstruction from an observed hologram pattern in order to distinguish tracer particles to each other at higher number density of particles. A new method is also proposed for measuring the velocity component in depth direction from the reconstructed volumes of light intensity at two sequential instants. The velocity component is evaluated by a spatio-temporal derivative method. Furthermore, the proposed method is applied to 3D orientation measurement of fibrous objects floating in fluid flows.
本研究开发了一种高精度动态PIV技术,用于用单相机测量三维流场中的三个速度分量,并通过实验和数值模拟评估了其性能和测量精度。所提出的方法基于具有相干照明光和摄像机的数字全息术。首先,设置具有高速 CMOS 相机的光学系统,以轻松捕获具有更高时间分辨率的示踪粒子的运动,并测量三维空间中速度的三个分量。然后,利用相对相位信息从观察到的全息图图案进行图像重建,以便在更高的粒子数密度下将示踪粒子彼此区分开。还提出了一种新方法,用于根据两个连续时刻的光强度重建体积测量深度方向的速度分量。速度分量通过时空导数方法进行评估。此外,所提出的方法适用于漂浮在流体流中的纤维物体的 3D 方向测量。
项目成果
期刊论文数量(7)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Three-dimensional flow measurement by digital holographic particle image velocimetry with spatio-temporal derivative method (evaluation of the measurement accuracy by numerical simulation)
时空导数法数字全息粒子图像测速三维流量测量(数值模拟评估测量精度)
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:Takahiro YAMAGUCHI;Shigeru MURATA;Takafumi MORIHARA
- 通讯作者:Takafumi MORIHARA
Numerical study of digital holographic measurement of droplet size in atomization process
雾化过程液滴尺寸数字全息测量数值研究
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:Shigeru MURATA;Yukinobu ANEZAKI;Kenji KANEHARA
- 通讯作者:Kenji KANEHARA
Some applications of digital holography to flow measurements
数字全息术在流量测量中的一些应用
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:Takahiro YAMAGUCHI;Shigeru MURATA;Takafumi MORIHARA;Shigeru MURATA
- 通讯作者:Shigeru MURATA
時空間微分法を用いたDHPIVによる3次元流動計測(数値シミュレーションによる測定精度評価)
使用时空微分法的DHPIV三维流量测量(通过数值模拟评估测量精度)
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:山口貴広;村田 滋;森原崇文
- 通讯作者:森原崇文
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MURATA Shigeru其他文献
MURATA Shigeru的其他文献
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{{ truncateString('MURATA Shigeru', 18)}}的其他基金
Development of multi-wavelength digital holography for highly accurate particle measurement
开发用于高精度粒子测量的多波长数字全息术
- 批准号:
17K06156 - 财政年份:2017
- 资助金额:
$ 1.79万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
photochemical water splitting using a mixed vesicular system
使用混合囊泡系统的光化学分解水
- 批准号:
16K05881 - 财政年份:2016
- 资助金额:
$ 1.79万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study of High Performance Method for Particle Measurement in 3D-space Based on Digital Holography
基于数字全息术的高性能3D空间粒子测量方法研究
- 批准号:
26420110 - 财政年份:2014
- 资助金额:
$ 1.79万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Introduction of flow system to vesicular reaction systems capable of converting light energy to chemical potential
将流动系统引入能够将光能转化为化学势的囊泡反应系统
- 批准号:
25620147 - 财政年份:2013
- 资助金额:
$ 1.79万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Study in the development of light energy conversion system using lipid bilayer membranes
利用脂质双层膜的光能转换系统的开发研究
- 批准号:
20550119 - 财政年份:2008
- 资助金额:
$ 1.79万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Feasibility study of high performance monocular 3D-PIV using phase-shifting digital holography
使用相移数字全息术的高性能单目 3D-PIV 的可行性研究
- 批准号:
19560172 - 财政年份:2007
- 资助金额:
$ 1.79万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Mechanistic Studies of Photoinduced Electron Transport across Vesicle Bilayers
光诱导电子跨囊泡双层传输的机理研究
- 批准号:
16550030 - 财政年份:2004
- 资助金额:
$ 1.79万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study of 3D-flow-field velocimetry for turbomachine
涡轮机三维流场测速研究
- 批准号:
12650166 - 财政年份:2000
- 资助金额:
$ 1.79万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study of Organic Reaction Processes by the Use of Low-Temperature Matrix-Isolation Technique
利用低温基质分离技术研究有机反应过程
- 批准号:
09440214 - 财政年份:1997
- 资助金额:
$ 1.79万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
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用于气溶胶材料表征的多光谱数字全息术
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- 资助金额:
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