Development of novel atomization system based on SAW streaming

被引:108
作者
Chono, K
Shimizu, N
Matsui, Y
Kondoh, J
Shiokawa, S
机构
[1] Shizuoka Univ, Grad Sch Sci & Technol, Hamamatsu, Shizuoka 4328561, Japan
[2] Shizuoka Univ, Dept Syst Engn, Fac Engn, Hamamatsu, Shizuoka 4328561, Japan
[3] A&R Ctr Surface Wave Technol, Hamamatsu, Shizuoka 4328561, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2004年 / 43卷 / 5B期
关键词
surface acoustic wave (SAW); SAW streaming; mist; atomization system; downward direction atomizer; liquid spreading and painting;
D O I
10.1143/JJAP.43.2987
中图分类号
O59 [应用物理学];
学科分类号
摘要
In this paper, we describe a novel atomization system using surface acoustic wave (SAW) devices. The SAW radiates its energy into a liquid, if the liquid is loaded on the SAW propagating surface. The various liquid motions, such as vibration, flow and droplet formation, due to interaction between SAW and liquid are called SAW streaming. The liquid dynamics depends on the SAW input power. First, the relationships between input voltage to the SAW device and water dynamics are observed. For atomization, an input voltage larger than 30 VP-P is required. Second, a stable method of generating a mist is discussed. The thin liquid layer plays an important role in continuous mist generation. The fundamental properties, such as the angle and height of mist, are measured using a filter paper to keep a thin liquid layer on the surface. We also demonstrate the control of mist direction with an electrostatic field. Based on these fundamental experiments, a practical atomization system is designed and performed.
引用
收藏
页码:2987 / 2991
页数:5
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