Measurement of piezoelectric transformer vibrations by digital holography

Kód výsledku v IS VaVaI

RIV/46747885:24220/12:#0002243 - isvavai.cz

Nalezeny alternativní kódy

RIV/46747885:24510/12:#0000738 RIV/61389021:_____/14:00439652

Výsledek na webu

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6306016

DOI - Digital Object Identifier

10.1109/TUFFC.2012.2414

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of piezoelectric transformer vibrations by digital holography

Popis výsledku v původním jazyce

A method for the measurements of the out-of-plane displacement on the surface of vibrating object is presented herein. This method is based on frequency-shifted time-averaged digital holographic interferometry, employing the principle of phase shifting.This approach allows for significant noise reduction, which results in high sensitivity of measurements. This method makes it possible to measure vibrations with amplitudes in the nanometer range over the whole measured surface. This method was applied to the visualization of the out-of-plane vibration modes of piezoelectric transformers. The amplitude and modal shapes were measured with a very high resolution. Furthermore, aspects influencing the measurement errors are discussed and the measurement results by holographic method were compared with the well-established single-point laser interferometry measurement method.

Název v anglickém jazyce

Measurement of piezoelectric transformer vibrations by digital holography

Popis výsledku anglicky

A method for the measurements of the out-of-plane displacement on the surface of vibrating object is presented herein. This method is based on frequency-shifted time-averaged digital holographic interferometry, employing the principle of phase shifting.This approach allows for significant noise reduction, which results in high sensitivity of measurements. This method makes it possible to measure vibrations with amplitudes in the nanometer range over the whole measured surface. This method was applied to the visualization of the out-of-plane vibration modes of piezoelectric transformers. The amplitude and modal shapes were measured with a very high resolution. Furthermore, aspects influencing the measurement errors are discussed and the measurement results by holographic method were compared with the well-established single-point laser interferometry measurement method.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

AJ - Písemnictví, mas–media, audiovize

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control

ISSN

0885-3010

e-ISSN

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Svazek periodika

59

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

1962 - 1968

Kód UT WoS článku

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EID výsledku v databázi Scopus

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