About: Nonlinear electromechanical response of the ferroelectret ultrasonic transducers

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The ultrasonic transmission between two aircoupled polypropylene (PP) ferroelectret (FE) transducers in dependence on the amplitude of the high-voltage exciting pulse revealed a strongly nonlinear electromechanical response of the FE transmitter. This phenomenon is described by a linear increase of the inverse electromechanical transducer constant of the PP FE film with an increase of the exciting electrical pulse amplitude (by a factor of 4). The electrostriction contribution can be attributed to the electrostatic force between electrodes and the Maxwell stress effect. A significant enhancement of the ACUS system transmission (12 dB) and signal-to-noise ratio (32 dB) was demonstrated by the increase of excitation voltage up to 3500 V. The ultrasonic transmission between two aircoupled polypropylene (PP) ferroelectret (FE) transducers in dependence on the amplitude of the high-voltage exciting pulse revealed a strongly nonlinear electromechanical response of the FE transmitter. This phenomenon is described by a linear increase of the inverse electromechanical transducer constant of the PP FE film with an increase of the exciting electrical pulse amplitude (by a factor of 4). The electrostriction contribution can be attributed to the electrostatic force between electrodes and the Maxwell stress effect. A significant enhancement of the ACUS system transmission (12 dB) and signal-to-noise ratio (32 dB) was demonstrated by the increase of excitation voltage up to 3500 V. (en)
Title	Nonlinear electromechanical response of the ferroelectret ultrasonic transducers Nonlinear electromechanical response of the ferroelectret ultrasonic transducers (en)
skos:prefLabel	Nonlinear electromechanical response of the ferroelectret ultrasonic transducers Nonlinear electromechanical response of the ferroelectret ultrasonic transducers (en)
skos:notation	RIV/68378271:_____/10:00352399!RIV11-GA0-68378271
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/09/0682), P(GAP204/10/0616), Z(AV0Z10100520)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Bovtun, Viktor
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	275036
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/10:00352399
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	piezoelectric; ferroelectret; transducer; ultrasonic (en)
http://linked.open.../riv/klicoveSlovo	piezoelectric transducer ultrasonic ferroelectret
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[BFFC805E3982]
http://linked.open...i/riv/nazevZdroje	Applied Physics A - Materials Science & Processing
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Dielectric spectroscopy and lattice dynamics of magnetoelectric multiferroics and strained ferroelectric thin films Modern piezoelectric perovskites: lattice vibrations and domain walls
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	100
http://linked.open...iv/tvurceVysledku	Bovtun, Viktor Yakymenko, Y. Bartusch, J. Döring, J. Erhard, A. Kreutzbruck, M.
http://linked.open...ain/vavai/riv/wos	000280556600026
http://linked.open...n/vavai/riv/zamer	Specific effects in condensed systems with reduced dimension and broken symmetry
issn	0947-8396
number of pages	7 (xsd:int)

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