1 documents found
Information × Registration Number 0217U003456, 0116U007377 , R & D reports Title Design and development of lightweight wearable wireless acoustic wave sensor array based audio-visual digital stethoscope device. popup.stage_title Head Yakymenko Yuriy, Registration Date 12-04-2017 Organization National Technscal University of Ukraine "Kiev Polytechnic Institute". popup.description2 Developed array of wireless sensors. The basic structure of the sensor surface acoustic wave resonator is a two apodizovanymy-to-pin converters, couplers and reverse bahatopoloskovym nanostructured layer of ZnO or ZnO:Al. As a substrate material for highly SAW resonator elected lithium niobate 128YX-LiNbO3. Lithium niobate has a high coefficient of electromechanical coupling. Made resonators have characteristics: the resonant frequency of the cavity with ZnO nanorods is 37,56 MHz; bandwidth - 420 kHz; Insertion loss - below 21 dB. The physical model of the sensor surface acoustic wave nanorods of ZnO. The analysis of the sensitivity of the sensors finite element method. It is shown that the sensor surface acoustic wave is sensitive to inertial load of 3.89?10-15 h/Hz. When using ZnO nanorods sensitivity increases to 6.24?10-17 g/Hz. Designed piezoelectric MEMS microphones matrix module allows you to implement audio-visual digital stethoscope. It can record and play back audio signals of the heart with high quality. Stethoscope lets you control localizing, analyze and transmit audio signals over a distance adult or fetal heart. Product Description popup.authors Богдан Олександр Володимирович Богдан Тетяна Зіновіївна Гребеніченко Ніна Іванівна Зазерін Андрій Ігорович Зеленська Марина Олександрівна Малік Олександр Володимирович Мороз Артем Володимирович Орлов Анатолій Тимофійович Орлов Дмитро Анатолійович Орлова Світлана Співак Віктор Михайлович Татарчук Дмитро Дмитрович Тодоренко Віктор Агафонович Ульянова Вероніка Олександрівна Швець Людмила Олександрівна Якименко Юрій Іванович popup.nrat_date 2020-04-02 Close
R & D report
Head: Yakymenko Yuriy. Design and development of lightweight wearable wireless acoustic wave sensor array based audio-visual digital stethoscope device.. (popup.stage: ). National Technscal University of Ukraine "Kiev Polytechnic Institute".. № 0217U003456
1 documents found

Updated: 2026-03-27