Publication
Title
LDV measurement of bird ear vibrations to determine inner ear impedance and middle ear power flow
Author
Abstract
The mechanical behavior of the middle ear structures in birds and mammals is affected by the fluids in the inner ear (IE) that are present behind the oval window. In this study, the aim was to gather knowledge of the acoustic impedance of the IE in the ostrich, to be able to determine the effect on vibrations and power flow in the single-ossicle bird middle ear for future studies. To determine the IE impedance, vibrations of the ossicle were measured for both the quasi-static and acoustic stimulus frequencies. In the acoustic regime, vibrations were measured with a laser Doppler vibrometer and electromagnetic stimulation of the ossicle. The impedance of the inner ear could be determined by means of a simple RIX model in series, which resulted in a stiffness reactance of K-IE = 0.20.10(12) Pa/m(3), an inertial impedance of M-IE = 0.652.10(6) Pa s(2)/m(3), and a resistance of R-IE = 1.57.10(9) Pa s/m. The measured impedance is found to be considerably smaller than what is found for the human IE.
Language
English
Source (journal)
AIP conference proceedings / American Institute of Physics. - New York
Measurements by Laser and Noncontact Techniques: Advances and Applications
Source (book)
12th International AIVELA Conference on Vibration Measurements by Laser, and Noncontact Techniques - Advances and Applications, JUN 29-JUL 01, 2016, Ancona, ITALY
Publication
Melville : Amer inst physics, 2016
ISSN
0094-243X
Volume/pages
1740(2016), 7 p.
Article Reference
050001
ISI
000380817900011
Number
978-0-7354-1397-9
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 02.09.2016
Last edited 23.07.2017
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