Three-Dimensional Velocity Measurement by Single Camera in a Micro-Channel using Doppler Phase-Shifting Holography

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420147
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Utsunomiya University
• Principal Investigator: NINOMIYA NAO 宇都宮大学, 工学(系)研究科(研究院), 准教授 (70212123)
• Co-Investigator(Kenkyū-buntansha): Barada Daisuke 宇都宮大学, 大学院工学研究科, 准教授 (80400711)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 速度計測 / 三次元計測 / ホログラフィー / PIV / PTV

Outline of Final Research Achievements

Presently, three-dimensional particle motions are measured by using the Doppler phase-shifting holography. By the Doppler effect caused by the moving particles, the longitudinal velocity can be calculated from the Doppler beat frequency. Moreover, with the use of micro PIV for the in-plane velocity measurement, three-dimensional velocity measurement has been achieved.
First, the discrete particles with different velocities are measured simultaneously. Then, the same measurement was done with the expanding optics. Thus, the three-dimensional velocity measurement of the particles in the micro channel will be possible with the single camera observation under microscopy.

Free Research Field

熱工学