NOISE IN ULTRASONIC TRANSDUCER
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F07%3APU70273" target="_blank" >RIV/00216305:26220/07:PU70273 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
NOISE IN ULTRASONIC TRANSDUCER
Original language description
Thermal noise and polarization noise are the main sources of voltage or current fluctuations in piezoceramic samples which are used as acoustic emission sensors or ultrasonic transducers. Noise is related to the energy dissipation and due to that the conductivity is proportional to the imaginary part of susceptibility and to the frequency. The resonance peaks were observed in the frequency range which corresponds with the geometrical dimensions of the sample. Resonance peaks frequencies are influenced by the mechanical damping. In this contribution we will discuss the impact of mechanical damping on the noise characteristics.
Czech name
Šum ultrazvukových měničů
Czech description
Thermal noise and polarization noise are the main sources of voltage or current fluctuations in piezoceramic samples which are used as acoustic emission sensors or ultrasonic transducers. Noise is related to the energy dissipation and due to that the conductivity is proportional to the imaginary part of susceptibility and to the frequency. The resonance peaks were observed in the frequency range which corresponds with the geometrical dimensions of the sample. Resonance peaks frequencies are influenced by the mechanical damping. In this contribution we will discuss the impact of mechanical damping on the noise characteristics.
Classification
Type
D - Article in proceedings
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA102%2F06%2F0866" target="_blank" >GA102/06/0866: Nonlinear electroultrasonic spectroscopy of solids</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
New Trends in Physics
ISBN
978-80-7355-078-3
ISSN
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e-ISSN
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Number of pages
351
Pages from-to
94-444
Publisher name
Ing. Zdeněk Novotný
Place of publication
Brno
Event location
Brno
Event date
Nov 15, 2007
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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