ISSN 0869-6632 (Print)
ISSN 2542-1905 (Online)


For citation:

Usanov D. A., Skripal A. V., Avdeev K. S. Laser autodyne measurements of ear-drum displacement caused by change of sound pressure level. Izvestiya VUZ. Applied Nonlinear Dynamics, 2008, vol. 16, iss. 6, pp. 41-45. DOI: 10.18500/0869-6632-2008-16-6-41-45

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
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Language: 
Russian
Article type: 
Article
UDC: 
621.375.826:616-073

Laser autodyne measurements of ear-drum displacement caused by change of sound pressure level

Autors: 
Usanov Dmitrij Aleksandrovich, Saratov State University
Skripal Anatolij Vladimirovich, Saratov State University
Avdeev Kirill Sergeevich, Saratov State University
Abstract: 

The results of measurements of ear-drum longitudinal displacement against vibrations excited by periodical sound pressure have been results. The existence of ear-drum longitudinal displacement with the increase of sound pressure intensity has been txperimentally proved. By spectrum of autodyne signal of semiconductor laser, using the window method of semiconductor laser analysis, by changes of phase of autodyne signal in time the values of such displacement for different levels of sound pressure has been determined.

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Reference: 
  1. Usanov DA, Skripal’ AV, Kamyshanskii AS. Velocities of nanometer-scale displacements determined using the autodyne signal spectrum of a quantum-confined semiconductor structure laser. Tech. Phys. Lett. 2004;30(4):295–297. DOI: 10.1134/1.1748604.
  2. Usanov DA, Mareev OV, Skripal AV, Kamyshansky AS. Measurement of the vibration amplitude of the tympanic membrane from the spectrum of the autodyne signal of a semiconductor laser on quantum-well structures. Biomedical Technologies and Electronics. 2004;(8–9):94–97 (in Russian).
  3. Neiman LV. Anatomy, Physiology and Pathology of the Organs of Hearing and Speech. Moscow: Prosveshchenie; 1977. 320 p. (in Russian).
  4. Kobrak GG. Middle Ear. Moscow: State Publishing House of Medical Literature; 1963. 456 p. (in Russian).
  5. Dyakonov VP. Wavelets. From Theory to Practice. Moscow: Solon-R; 2002. 448 p. (in Russian).
Received: 
19.05.2008
Accepted: 
24.11.2008
Published: 
27.02.2009
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