Acoustic beam steering by means of the active acoustic metasurface with an array of piezoelectric membranes and local control of acoustic impedance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F19%3A00572317" target="_blank" >RIV/61389021:_____/19:00572317 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Acoustic beam steering by means of the active acoustic metasurface with an array of piezoelectric membranes and local control of acoustic impedance

Popis výsledku v původním jazyce

The control of the wave vector of the sound wave propagating in air and transmitted through an active acoustic metasurface is analyzed by means of numerical simulations. The control method employs the tunable adjustment of acoustic impedance along the acoustic metasurface, which is formed by a series of piezoelectric membranes shunted by an active electronic circuit. Using these means, it is possible to achieve an actively tuned acoustic metasurface, which allows the control of the phase shift of the transmitted sound wave, when crossing the acoustic metasurface. This allows to manipulate the wave vector of the transmitted sound wave. Methods and results of the calibration of acoustic impedance and the application of such a metasurface device in acoustic beam steering will be discussed

Název v anglickém jazyce

Acoustic beam steering by means of the active acoustic metasurface with an array of piezoelectric membranes and local control of acoustic impedance

Popis výsledku anglicky

The control of the wave vector of the sound wave propagating in air and transmitted through an active acoustic metasurface is analyzed by means of numerical simulations. The control method employs the tunable adjustment of acoustic impedance along the acoustic metasurface, which is formed by a series of piezoelectric membranes shunted by an active electronic circuit. Using these means, it is possible to achieve an actively tuned acoustic metasurface, which allows the control of the phase shift of the transmitted sound wave, when crossing the acoustic metasurface. This allows to manipulate the wave vector of the transmitted sound wave. Methods and results of the calibration of acoustic impedance and the application of such a metasurface device in acoustic beam steering will be discussed

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 26th International Congress on Sound and Vibration

ISBN

9781999181000

ISSN

—

e-ISSN

—

Počet stran výsledku

5

Strana od-do

(2019)

Název nakladatele

Canadian Acoustical Association

Místo vydání

Montreal

Místo konání akce

Montreal

Datum konání akce

7. 7. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—