DocumentCode
1328993
Title
Audio-frequency characteristics of multilayer piezoelectric crystal actuator for use in hearing implant
Author
Abel, E.W. ; Wang, Z.G. ; Mils, R.P. ; Liu, Y.
Author_Institution
Dept. of Biomed. Eng., Dundee Univ., UK
Volume
36
Issue
6
fYear
2000
fDate
3/16/2000 12:00:00 AM
Firstpage
494
Lastpage
495
Abstract
A multilayer piezoelectric actuator has been evaluated for use in a hearing implant. Its frequency response was flat up to 20 kHz. Initial in-vitro trials gave stapes displacement from stimulation at 3.5 V RMS, which is equivalent to that from acoustic stimulation at 90 dB SPL below 1 kHz, increasing to 120 dB at 8 kHz. This performance meets accepted clinical specifications
Keywords
frequency response; hearing aids; piezoelectric actuators; prosthetics; 0.1 to 20 kHz; 120 dB; 3.5 V; 90 dB; accepted clinical specifications; audio-frequency characteristics; frequency response; hearing implant; multilayer piezoelectric crystal actuator; stapes displacement;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20000426
Filename
840123
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