Development of a three-dimensional scanning microparticle image velocimetry system using a piezo actuator
Development of a three-dimensional scanning microparticle image velocimetry system using a piezo actuator
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DOI：
10.1063/1.2114889
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发表时间：
2005-10
影响因子：
1.6
通讯作者：
K. Shinohara;Y. Sugii;J. Jeong;K. Okamoto
中科院分区：
文献类型：
--
作者：
K. Shinohara;Y. Sugii;J. Jeong;K. Okamoto
发展了一种测量流体流场（x，y，z，u，v，w）速度分布的技术，其空间分辨率可达微米级。为了在微观尺度上研究三维流场结构，结合高速摄像机、落射荧光显微镜、连续激光器和压电驱动器，研制了三维扫描微粒子图像测速系统。为了验证系统的测量精度，进行了数值模拟和实验。最佳测量条件，确定了数值模拟，使用合成图像下落射显微镜观察。作为演示，在5.4×2.7×4.2μm的空间分辨率下，测量了直径为95μm的微圆管内水流的三维速度分布。
A technique for measuring the full field (x,y,z,u,v,w) velocity distribution of fluid flow at a micrometer scale spatial resolution has been developed. To investigate three-dimensional (3D) flow structures on a microscopic scale, a 3D scanning microparticle image velocimetry system was developed by combining a high-speed camera, an epifluorescent microscope, a cw laser, and a piezo actuator. Both numerical simulations and an experiment were carried out in order to validate the measurement accuracy of the system. Optimum measurement conditions were determined by numerical simulations using synthetic images under epifluorescent microscope observation. As a demonstration, the three-dimensional velocity distribution of water flow inside a microround tube having a diameter of 95μm was measured at a spatial resolution of 5.4×2.7×4.2μm.