| Автор | Yoon, Sang Youl |
| Автор | Kim, Kyung Chun |
| Дата выпуска | 2006-11-01 |
| dc.description | This paper reports on a method for detecting three-dimensional particle positions and conducting three-dimensional microflow diagnostics in a microvolume via a three-pinhole defocusing concept. A simple setup and an easy detection method are described. The calibration-based defocusing method is suggested in place of formulae introduced through geometric analyses in previous studies. Depth calibration was performed in a microvolume, and X–Y compensation functions were obtained. By using the calibration functions, three-dimensional particle positions can be calculated at a sub-micron depth resolution. The effects of pinhole masks made with different pattern sizes are also described. The developed method was applied to a microflow in a micro backward-facing step. Time-resolved particle trajectories and three-dimensional volumetric velocity fields at a depth of 50 µm were obtained and are presented here. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2006 IOP Publishing Ltd |
| Название | 3D particle position and 3D velocity field measurement in a microvolume via the defocusing concept |
| Тип | paper |
| DOI | 10.1088/0957-0233/17/11/006 |
| Electronic ISSN | 1361-6501 |
| Print ISSN | 0957-0233 |
| Журнал | Measurement Science and Technology |
| Том | 17 |
| Первая страница | 2897 |
| Последняя страница | 2905 |
| Аффилиация | Yoon, Sang Youl; School of Mechanical Engineering, Pusan National University, Busan, 609-735, Korea |
| Аффилиация | Kim, Kyung Chun; School of Mechanical Engineering, Pusan National University, Busan, 609-735, Korea |
| Выпуск | 11 |
