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