Pressure calibration of a digital microelectromechanical system microphone by comparison
| Autor: | Nicola Montali, Alessandro Schiavi, Andrea Prato, Claudio Guglielmone |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Acoustics and Ultrasonics
Microphone Computer science 020208 electrical & electronic engineering 02 engineering and technology 01 natural sciences Arts and Humanities (miscellaneous) 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Calibration Electronic engineering Noise control 010301 acoustics Sensitivity (electronics) |
| Zdroj: | The Journal of the Acoustical Society of America. 144(4) |
| ISSN: | 1520-8524 |
| Popis: | In the field of noise control and monitoring, a new generation of small and low-cost microelectro-mechanical system (MEMS) microphones is nowadays widely adopted. MEMS microphones, after recognition as traceable measurement instruments, could open up promising measurements based on wireless sensor networks. Current standards do not apply specifically to digital microphones. In this work, a pressure calibration procedure by comparison is carried out for a digital MEMS microphone and a sensitivity parameter suitable for metrological purposes is proposed. Measurement procedure and results between 20 Hz and 20 kHz are presented along with uncertainty contributions. |
| Databáze: | OpenAIRE |
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