Bar Piezoelectric Ceramic Transformers Working in Longitudinal Mode

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24510%2F15%3A%230001263" target="_blank" >RIV/46747885:24510/15:#0001263 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.tandfonline.com/doi/abs/10.1080/00150193.2015.1099413?journalCode=gfer20" target="_blank" >http://www.tandfonline.com/doi/abs/10.1080/00150193.2015.1099413?journalCode=gfer20</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/00150193.2015.1099413" target="_blank" >10.1080/00150193.2015.1099413</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Bar Piezoelectric Ceramic Transformers Working in Longitudinal Mode

Popis výsledku v původním jazyce

The bulk transformer working in k33-mode in both input and output circuits was studied. Theoretical model was developed to describe the transformation ratio as a function of the electrode size, material properties, frequency and impedance load in outputcircuit. Numerical simulation allows for the optimization of the primary electrode aspect ratio (l1/l=0.34) for the best transformation ratio at no-load condition. Transformation ratio, efficiency, input and output impedances are measured for the set ofsamples with variable input/output electrode size for the lowpower signal and compared with derived formulae. The maximum efficiency of 52% and transformation ratio of U2/U1=0.59 at the optimum load of 20 kOhm is obtained for the input part volume ratiol1/l=0.40 for the fundamental resonance. The higher efficiency of 60% and the transformation ratio of 0.36 at the optimum load of 10 kOhm is observed at the first overtone for l1/l=0.69 input part volume ratio.

Název v anglickém jazyce

Bar Piezoelectric Ceramic Transformers Working in Longitudinal Mode

Popis výsledku anglicky

The bulk transformer working in k33-mode in both input and output circuits was studied. Theoretical model was developed to describe the transformation ratio as a function of the electrode size, material properties, frequency and impedance load in outputcircuit. Numerical simulation allows for the optimization of the primary electrode aspect ratio (l1/l=0.34) for the best transformation ratio at no-load condition. Transformation ratio, efficiency, input and output impedances are measured for the set ofsamples with variable input/output electrode size for the lowpower signal and compared with derived formulae. The maximum efficiency of 52% and transformation ratio of U2/U1=0.59 at the optimum load of 20 kOhm is obtained for the input part volume ratiol1/l=0.40 for the fundamental resonance. The higher efficiency of 60% and the transformation ratio of 0.36 at the optimum load of 10 kOhm is observed at the first overtone for l1/l=0.69 input part volume ratio.

Druh

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

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Ferroelectrics

ISSN

0015-0193

e-ISSN

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Svazek periodika

486

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

13-24

Kód UT WoS článku

000370152000003

EID výsledku v databázi Scopus

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