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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Print: 2152-5102
ISSN Online: 2152-5110

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v31.i3.40
12 pages

Microphone Based Sensor for Recording the Respiratory Sounds

I. Yu. Goncharova
Institute of Hydromechanics of National Academy of Sciences of Ukraine, Kyiv, Ukraine

ABSTRACT

Physical and mathematical models of sensors for recording the respiratory sounds with the use of electret microphones have been developed. Corresponding boundary problems with and without the compensating tube have been solved in the exact statement. Influence of dimensions of the air chamber and compensating tube on the efficiency of such sensors has been investigated. When solving the problems the losses caused by viscous friction in narrow compensating tube were taken into account. Ways for optimization of geometrical parameters of such systems have been outlined.


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