Bar Piezoelectric Ceramic Transformers Working in Longitudinal Mode
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Bar Piezoelectric Ceramic Transformers Working in Longitudinal Mode
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Ferroelectrics
ISSN
0015-0193
e-ISSN
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Volume of the periodical
486
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
13-24
UT code for WoS article
000370152000003
EID of the result in the Scopus database
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