Manipulation of Powder with Surface Acoustic Wave Actuator to Control Standing and Traveling Modes

被引：1

作者：

Takizawa, Yukako ^{[1
]}

Fukuchi, Yusuke ^{[2
]}

Hamaguchi, Kazuya ^{[1
]}

Amaya, Satoshi ^{[3
]}

Utsumi, Yuichi ^{[4
]}

Takeo, Masahiro ^{[5
]}

Iimura, Kenji ^{[5
]}

Suzuki, Michitaka ^{[6
]}

Saiki, Tsunemasa ^{[1
,7
]}

机构：

[1] Hyogo Prefectural Inst Technol, Suma Ku, 3-1-12 Yukihira Cho, Kobe, Hyogo 6540037, Japan

[2] New Ind Res Org, 6-1 Minatojima Nakamachi, Kobe, Hyogo 6500046, Japan

[3] Univ Tokyo, Dept Mech Engn, Grad Sch Engn, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan

[4] Univ Hyogo, Lab Adv Sci & Technol Ind, 3-1-2 Koto, Kamigori, Hyogo 6781205, Japan

[5] Univ Hyogo, Dept Chem Engn, Grad Sch Engn, 2167 Shosha, Himeji, Hyogo 6712280, Japan

[6] Univ Hyogo, Inst Res Promot & Collaborat, 3F,Jibasan Bldg,123 Minamiekimae Cho, Himeji, Hyogo 6700962, Japan

[7] Univ Hyogo, Dept Elect Mat & Engn, Grad Sch Engn, 2167 Shosha, Himeji, Hyogo 6712280, Japan

来源：

SENSORS AND MATERIALS | 2021年 / 33卷 / 12期

关键词：

surface acoustic wave (SAW); standing wave; traveling wave; vibration proofing; powder transportation; TOTAL ANALYSIS SYSTEMS;

D O I：

10.18494/SAM.2021.3489

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In this study, we fabricated a new surface acoustic wave (SAW) actuator that can control the SAW mode of a powder-manipulation area between an interdigital transducer (IDT) (for generating the SAW) and an elastic-sheet (chloroprene rubber) pressurizer. In particular, the propagation surface near the ends of the substrate, at which the SAW is reflected, is pressurized with elastic bodies to suppress the reflected wave. We used laser Doppler vibrometry with the fabricated SAW actuator to investigate the change in SAW mode from standing to traveling due to elastic-sheet pressurization. The results of the investigation revealed two key points: (i) the amplitude of the reflected wave could be suppressed by about 90% by elastic-sheet pressurization and (ii) the SAW could be switched between the standing, traveling, and intermediate modes. We then investigated the behavior of a powder (100-mu m-diameter SiO2) using the SAW actuator. We found that the powder could be dissipated by the SAW in the standing mode and then transported to the IDT side by utilizing the SAW in the traveling mode. It was also shown that a SAW in the intermediate mode between the standing and traveling modes (namely, the amplitude of the reflected wave is about one-third that of the incident wave) can be used to transport the powder to the IDT side while dissipating it.

引用

页码：4427 / 4439

页数：13