I.Yu.Goncharova Probe for breath sounds registration based on use of microphone |
Acoustic bulletin, Vol. 3 ¹ 2, (2000) |
| Physical and mathematical models for probes for breath sounds registration with use of electret microphones are developed. Corresponding boundary problems with and without the compensating tube are solved in the exact statement. An influence of dimensions of air chamber and compensating tube on the efficiency of such probes is investigated. When solving the problems the losses caused by viscous friction in narrow compensating tube were taken in account. Ways for optimization of geometrical parameters of such systems are outlined. |
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KEY WORDS: microphone sensor, breath sounds registration, stethophondoscope |
| TEXT LANGUAGE: Russian |