1/f noise in piezoceramic samples
Result description
Thermal noise and polarisation noise are the main sources of voltage or current fluctuation in piezoceramic samples. Noise spectral density is proportional to sample equivalent series resistance and decreases with increasing frequency. Induced electric charge fluctuates and character of this fluctuations is 1/f due to the fact that dielectric conductivity is proportional to imaginary part of permittivity and frequency. We proved, in accordance with experimental results, that at low frequencies is the poolarisation noise of 1/f type.
Keywords
The result's identifiers
Result code in IS VaVaI
Alternative codes found
RIV/00216305:26220/03:PU39325
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
1/f noise in piezoceramic samples
Original language description
Thermal noise and polarisation noise are the main sources of voltage or current fluctuation in piezoceramic samples. Noise spectral density is proportional to sample equivalent series resistance and decreases with increasing frequency. Induced electric charge fluctuates and character of this fluctuations is 1/f due to the fact that dielectric conductivity is proportional to imaginary part of permittivity and frequency. We proved, in accordance with experimental results, that at low frequencies is the poolarisation noise of 1/f type.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the 17th International Conference Noise and Fluctuations ICNF 2003
ISBN
80-239-1005-1
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
851-854
Publisher name
CNRL s.r.o.
Place of publication
Czech Republic
Event location
Prague
Event date
Aug 18, 2003
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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Basic information
Result type
D - Article in proceedings
CEP
BM - Solid-state physics and magnetism
Year of implementation
2003