A Bionic MEMS Electronic Stethoscope With Double-Sided Diaphragm Packaging
نویسندگان
چکیده
In this paper, an electronic stethoscope is designed based on a bionic Micro-Electro-Mechanical System (MEMS) sound-sensitive sensor. Inspired by the strong sound reflection effect of water-air interface, double-sided diaphragm MEMS (DMES) encapsulated novel packaging proposed. The packaging’s superiority verified comparing single (SMES) with DMES. frequency clinical heart signal mostly in range 20–600 Hz. Finite simulation results show that for same incident source, pressure level inside 4dB higher than band. Furthermore, actual auscultation test signal-to-noise ratio (SNR) DMES reaches 41.3dB, which 2.2dB SMES. Besides, signals collected and commercial (Model 3200, 3M Littmann, USA), high consistency two signals’ characteristic parameters time domain proves feasibility Finally, has advantages low cost, its SNR 10.2db stethoscope. All these broad prospect popularization basic medical treatment.
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ژورنال
عنوان ژورنال: IEEE Access
سال: 2021
ISSN: ['2169-3536']
DOI: https://doi.org/10.1109/access.2021.3058148