Readout for simple and precise analog acoustic impact initialization

Abstract An economic concept of acoustic shock wave sensing readout system for simple computer processing is introduced in this work. Its application can be found in precise initialization of the stopwatch from the starter sound, handclap or gun in competitive sport races but also in many other plac...

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Autores principales:	Roman Sotner, Ladislav Polak, Jan Jerabek, Abhirup Lahiri, Winai Jaikla
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/803a09807b624ea09353c254ced544bc
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spelling	oai:doaj.org-article:803a09807b624ea09353c254ced544bc2021-11-14T12:19:33ZReadout for simple and precise analog acoustic impact initialization10.1038/s41598-021-01090-z2045-2322https://doaj.org/article/803a09807b624ea09353c254ced544bc2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01090-zhttps://doaj.org/toc/2045-2322Abstract An economic concept of acoustic shock wave sensing readout system for simple computer processing is introduced in this work. Its application can be found in precise initialization of the stopwatch from the starter sound, handclap or gun in competitive sport races but also in many other places. The proposed device consists of several low-cost commercially available components and it is powered by a 9 V battery. The proposed device reliably reacts on incoming acoustic shock wave by generation of explicit impulse having controllable duration. It significantly overcomes basic implementations using only a microphone and amplifier (generating parasitic burst instead of defined and distinct impulse) or systems allowing a limited number of adjustable features (gain and/or threshold of the comparator—our concept offers the adjustment of gain, cut-off frequency, threshold level and time duration of active state). In comparison with standard methods, the proposed approach simplifies and makes sensing device less expensive and universal for any powder-based starting gun (without necessity to adapt starting gun). The proposed device, among others, has the following features: impulse duration can be controlled from hundreds of μs up to 2.3 s, the gain range of linear part of processing from 6 to 40 dB and open-collector output compatible with 5 V TTL or 3.3 V CMOS logic. The initialization has been tested in the range from tens of centimeters up to four meters. In order to highlight the important spectral components, the spectral character of the signal can be optimally reduced by a low-pass filter. The quiescent power consumption of the designed simple analog circuit reaches 90 mW. Several use cases, response of the designed system on gunshot signature, talking, hand-clapping and hit on the sensing microphone, are studied and compared to each other. Simulation and experimental results confirm functionality of the realized system.Roman SotnerLadislav PolakJan JerabekAbhirup LahiriWinai JaiklaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Roman Sotner Ladislav Polak Jan Jerabek Abhirup Lahiri Winai Jaikla Readout for simple and precise analog acoustic impact initialization
description	Abstract An economic concept of acoustic shock wave sensing readout system for simple computer processing is introduced in this work. Its application can be found in precise initialization of the stopwatch from the starter sound, handclap or gun in competitive sport races but also in many other places. The proposed device consists of several low-cost commercially available components and it is powered by a 9 V battery. The proposed device reliably reacts on incoming acoustic shock wave by generation of explicit impulse having controllable duration. It significantly overcomes basic implementations using only a microphone and amplifier (generating parasitic burst instead of defined and distinct impulse) or systems allowing a limited number of adjustable features (gain and/or threshold of the comparator—our concept offers the adjustment of gain, cut-off frequency, threshold level and time duration of active state). In comparison with standard methods, the proposed approach simplifies and makes sensing device less expensive and universal for any powder-based starting gun (without necessity to adapt starting gun). The proposed device, among others, has the following features: impulse duration can be controlled from hundreds of μs up to 2.3 s, the gain range of linear part of processing from 6 to 40 dB and open-collector output compatible with 5 V TTL or 3.3 V CMOS logic. The initialization has been tested in the range from tens of centimeters up to four meters. In order to highlight the important spectral components, the spectral character of the signal can be optimally reduced by a low-pass filter. The quiescent power consumption of the designed simple analog circuit reaches 90 mW. Several use cases, response of the designed system on gunshot signature, talking, hand-clapping and hit on the sensing microphone, are studied and compared to each other. Simulation and experimental results confirm functionality of the realized system.
format	article
author	Roman Sotner Ladislav Polak Jan Jerabek Abhirup Lahiri Winai Jaikla
author_facet	Roman Sotner Ladislav Polak Jan Jerabek Abhirup Lahiri Winai Jaikla
author_sort	Roman Sotner
title	Readout for simple and precise analog acoustic impact initialization
title_short	Readout for simple and precise analog acoustic impact initialization
title_full	Readout for simple and precise analog acoustic impact initialization
title_fullStr	Readout for simple and precise analog acoustic impact initialization
title_full_unstemmed	Readout for simple and precise analog acoustic impact initialization
title_sort	readout for simple and precise analog acoustic impact initialization
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/803a09807b624ea09353c254ced544bc
work_keys_str_mv	AT romansotner readoutforsimpleandpreciseanalogacousticimpactinitialization AT ladislavpolak readoutforsimpleandpreciseanalogacousticimpactinitialization AT janjerabek readoutforsimpleandpreciseanalogacousticimpactinitialization AT abhiruplahiri readoutforsimpleandpreciseanalogacousticimpactinitialization AT winaijaikla readoutforsimpleandpreciseanalogacousticimpactinitialization
_version_	1718429297206624256

Readout for simple and precise analog acoustic impact initialization

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