Development of the new shape PZT ceramics sounder suitable for a sound source of artificial larynx

Katsutoshi Ooe; Ryota Kanetake; Yuuichi Sugio; Akimitsu Tanaka

doi:10.1117/12.695758

14 December 2006 Development of the new shape PZT ceramics sounder suitable for a sound source of artificial larynx

Katsutoshi Ooe, Ryota Kanetake, Yuuichi Sugio, Akimitsu Tanaka

Proceedings Volume 6416, Biomedical Applications of Micro- and Nanoengineering III; 64160C (2006) https://doi.org/10.1117/12.695758
Event: SPIE Smart Materials, Nano- and Micro-Smart Systems, 2006, Adelaide, Australia

Abstract

Various speech production substitutes, which aim to reconstruct speech functions, have been developed and used practically by speech impaired individuals. However, conventional speech production substitutes have various drawbacks; therefore, perfect speech production substitutes are expected to be developed. We focused on the PZT ceramics sounder as a sound source in an electric drive artificial larynx. We first developed the artificial larynx that uses a PZT ceramic sounder and then evaluated its performance. The vocalized sound of the artificial larynx user shows good characteristics at the formant frequency, which is important for vowel discrimination. The characteristic feature of our artificial larynx is its individual structure, and this typical structure implies that the sound source and the implant are separated. This structure facilitates a high biocompatibility in our artificial larynx. In our previous work, the improvement in the acoustic characteristics of the sound source was described. The improvement is achieved by the optimization of the electric control and its structure. In this paper, we present the results of shape optimization and new shape PZT ceramics sounder evaluation. The optimized shape is decided on FEM analysis, and prototype PZT ceramics sounder based on above analysis is manufactured by way of trial. Additionally, the performance of prototype sounder is evaluated by acoustic analysis. Until now, we have researched about the immobilization of biomolecules onto the metal surface. It is believed that biomolecular immobilization on the sound source surface improves its biocompatibility. In the future, we aim to realize implantable sound sources that employ biomolecular immobilization technology.

Citation Download Citation

Katsutoshi Ooe, Ryota Kanetake, Yuuichi Sugio, and Akimitsu Tanaka "Development of the new shape PZT ceramics sounder suitable for a sound source of artificial larynx", Proc. SPIE 6416, Biomedical Applications of Micro- and Nanoengineering III, 64160C (14 December 2006); https://doi.org/10.1117/12.695758

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Ferroelectric materials

Ceramics

Prototyping

Metals

Finite element methods

Shape analysis

Acoustics

Show All Keywords

Keywords/Phrases

Search In:

Publication Years