DocumentCode
3365969
Title
Optimized flextensional transducers for an implantable hearing aid
Author
Schmitt, Daniel ; Weber, Peter K. ; Pelinescu, Ion ; Park, Seung-Eek
Author_Institution
Fraunhofer Inst. Biomedizinische Technik, St. Ingbert, Germany
Volume
2
fYear
2002
fDate
8-11 Oct. 2002
Firstpage
1273
Abstract
Relaxor single crystal based flextensional transducers were investigated for an implantable hearing aid application. Oval shape cymbal structure, adopted due to anatomic requirement, was simulated using finite element analysis (FEA). The optimum lateral orientation was determined to be <100> along the longer direction of oval cap. The simulation results suggest that optimized single crystal transducers offer 100% improved performance over the analogous PZT transducers, adequate for implantable hearing aid device applications.
Keywords
acoustic transducers; finite element analysis; hearing aids; piezoelectric transducers; relaxor ferroelectrics; anatomic requirement; finite element analysis; implantable hearing aid; optimized flextensional transducers; optimum lateral orientation; oval shape cymbal structure; relaxor single crystal; Acoustic transducers; Anisotropic magnetoresistance; Auditory system; Ceramics; Crystallography; Crystals; Niobium; Piezoelectric transducers; Shape; Vibrations;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE
ISSN
1051-0117
Print_ISBN
0-7803-7582-3
Type
conf
DOI
10.1109/ULTSYM.2002.1192526
Filename
1192526
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