A piezoelectric bone-conduction bending hearing actuator

被引：11
作者：
Adamson, R. B. A. [1 ]
Bance, M. [1 ]
Brown, J. A. [1 ]
机构：
[1] Dalhousie Univ, Dept Biomed Engn, SENSELab, Queen Elizabeth II Hlth Sci Ctr, Halifax, NS B3H 2Y9, Canada
来源：
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2010年 / 128卷 / 04期
基金：
加拿大健康研究院;
关键词：
SINGLE-CRYSTALS; TRANSDUCERS; AIDS;
D O I：
10.1121/1.3478778
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
A prototype of a novel bone-conduction hearing actuator based on a piezoelectric bending actuator is presented. The device lies flat against the skull which would allow it to form the basis of a subcutaneous bone-anchored hearing aid. The actuator excites bending in bone through a local bending moment rather than the application of a point force as with conventional bone-anchored hearing aids. Through measurements of the cochlear velocity created by the actuator in embalmed human heads, the device is shown to exhibit high efficiency, making it a possible alternative to present-day electromagnetic bone-vibration actuators. (C) 2010 Acoustical Society of America. [DOI: 10.1121/1.3478778]
引用
收藏
页码：2003 / 2008
页数：6
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