Visualization of flexural wave propagation in helical coiled ultrasonic waveguide

Author

Tanaka, Ryo ; Tanabe, M. ; Okubo, Kan ; Tagawa, Norio

Author_Institution

Dept. of Electr. & Comput. Eng., Tokyo Metropolitan Univ., Hino, Japan

fYear

2009

fDate

20-23 Sept. 2009

Firstpage

2600

Lastpage

2602

Abstract

We have developed a traveling-wave-type miniature ultrasonic motor using a helical coiled waveguide as a stator. In this motor, the elliptical motion of the surface particle due to the flexural ultrasonic waves rotates the rotor, which can be placed adjacently inside or outside the stator, via the frictional force. The rotation of the particle was able to be confirmed like this by searching for the direction of the rotation and the rotation phase in detail. In this study, we present a visualization of the helical coiled waveguide in order to investigate the overall behavior of the coil when the ultrasound has been propagated. Moreover, from the results of the overall behavior of the coal, the local behavior could be confirmed.

Keywords

acoustic waveguides; elastic waves; rotors; stators; ultrasonic motors; ultrasonic propagation; vibrations; coil behavior; elliptical motion; flexural ultrasonic waves; flexural wave propagation visualization; frictional force; helical coiled ultrasonic waveguide; rotation direction; rotor rotation; stator; surface particle; traveling-wave-type miniature ultrasonic motor; ultrasound propagation; Visualization; Lamb wave; flexural wave; helical coiled waveguide; surface particle motion; ultrasonic motor; visualize vibration forms;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2009 IEEE International

Conference_Location

Rome

ISSN

1948-5719

Print_ISBN

978-1-4244-4389-5

Electronic_ISBN

1948-5719

Type

conf

DOI

10.1109/ULTSYM.2009.5441715

Filename

5441715