 This independent review is continuation of the authors' work performed under State Contract No.2013-1.4-14-514-01 concluded between the Ministry of Education and Science of the Russian Federation and LLC Diagnostika + on the subject "Development and research on the methods of producing informational images of bronchial sonography signals and algorithms to detect pathological signs for more objective diagnostics of bronchopulmonary diseases in pediatrics".
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Published: 20th Dec 2014
Dmitry Sergeevich Zhdanov (1,2) *, Artem Shamilyevich Bureev (1,2), Lyudmila Anatolyevna Khokhlova (1), Anton Ivanovich Seleznev (1,2), Ivan Yuryevich Zemlyakov (1)
(1) Diagnostika + Limited Liability Company, Office 406, Akademichesky Avenue, Tomsk, 634055, Russia.
(2) National Research Tomsk State University, 36 Lenina Avenue, Tomsk, 634050, Russia.
* Corresponding author
Table 1: CORSA recommendations for characteristics of sensors that detect human pulmonary sounds. Parameters Values Frequency range 100 Hz-5 kHz Frequency response Flat in the audio function (FRF) form range of frequencies, irregularity no more than 6 dB Dynamic range > 60 dB Sensitivity It should not change depending on the frequency of signals, direction of sounds or pressure applied onto the sensor Signal/noise ratio > 60 dB (SNR) Direction diagram Omnidirectional Sensor attachment Condenser microphone--elastic belt, glue Piezoelectric microphone, accelerometer--glue Protection against Acoustic sounds: noises and protection against interference vibration, covering with sound- absorbing filling. Electromagnetic interference: twister pair cable or shielded microphone cable. Frequency response Constant and flat in function of the the audio range of amplifier frequencies under study Dynamic range of the > 60 dB amplifier Table 2: Maass and Weber scale. Notation Rated frequency (Hz) Pass-band (Hz) H 35 Up to 70 [C.sub.1] 70 40-180 [C.sub.2] 140 140-400 [B.sub.1] 250 250-650 [B.sub.2] 400 400-1000 A 140 100-400
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|Author:||Zhdanov, Dmitry Sergeevich; Bureev, Artem Shamilyevich; Khokhlova, Lyudmila Anatolyevna; Seleznev, A|
|Publication:||Biology and Medicine|
|Date:||Jul 1, 2014|
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