| Автор | Xie Wen-Jun |
| Автор | Wei Bing-Bo |
| Дата выпуска | 2007-01-01 |
| dc.description | The resonance shift due to the presence and movement of a rigid spherical sample in a single-axis acoustic levitator is studied with the boundary element method on the basis of a two-cylinder model of the levitator. The introduction of a sample into the sound pressure nodes, where it is usually levitated, reduces the resonant interval H<sub>n</sub> (n is the mode number) between the reflector and emitter. The larger the sample radius, the greater the resonance shift. When the sample moves along the symmetric axis, the resonance interval H<sub>n</sub> varies in an approximately periodical manner, which reaches the minima near the pressure nodes and the maxima near the pressure antinodes. This suggests a resonance interval oscillation around its minimum if the stably levitated sample is slightly perturbed. The dependence of the resonance shift on the sample radius R and position h for the single-axis acoustic levitator is compared with Leung's theory for a closed rectangular chamber, which shows a good agreement. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Resonance Shift of Single-Axis Acoustic Levitation |
| Тип | paper |
| DOI | 10.1088/0256-307X/24/1/037 |
| Electronic ISSN | 1741-3540 |
| Print ISSN | 0256-307X |
| Журнал | Chinese Physics Letters |
| Том | 24 |
| Первая страница | 135 |
| Последняя страница | 138 |
| Аффилиация | Xie Wen-Jun; Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072 |
| Аффилиация | Wei Bing-Bo; Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072 |
| Выпуск | 1 |
