Detail publikačního výsledku

Electrical noise and sensitivity of piezoceramic sensors

ŠIKULA, J., ŠTRUNC, M., MAJZNER, J., HÁJEK, K.

Originální název

Electrical noise and sensitivity of piezoceramic sensors

Anglický název

Electrical noise and sensitivity of piezoceramic sensors

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Improving of sensitivity of piezoceramic sensors demands minimizing of their noise. The paper deals with the study of polarization noise in piezoceramics. Here the thermal noise and polarization noise are the main sources of voltage and current fluctuation. Noise spectral density is proportional to sample equivalent parallel resistance and decreases with increasing frequency. We proved, in accordance with experimental results, that at low frequencies the polarization noise measured (measured noise after substraction of thermal noise) is 1/f type.

Anglický abstrakt

Improving of sensitivity of piezoceramic sensors demands minimizing of their noise. The paper deals with the study of polarization noise in piezoceramics. Here the thermal noise and polarization noise are the main sources of voltage and current fluctuation. Noise spectral density is proportional to sample equivalent parallel resistance and decreases with increasing frequency. We proved, in accordance with experimental results, that at low frequencies the polarization noise measured (measured noise after substraction of thermal noise) is 1/f type.

Klíčová slova

piezoceramic sensors, electrical noise, polarization, sensitivity

Klíčová slova v angličtině

piezoceramic sensors, electrical noise, polarization, sensitivity

Autoři

ŠIKULA, J., ŠTRUNC, M., MAJZNER, J., HÁJEK, K.

Vydáno

01.01.2003

Nakladatel

Brno University of Technology

Místo

Brno

ISBN

80-214-2475-3

Kniha

NDT in Progress, 2nd International Workshop of NDT Experts - Proceedings

Svazek

1

Strany od

249

Strany počet

7

BibTex

@inproceedings{BUT9244,
  author="Josef {Šikula} and Marian {Štrunc} and Jiří {Majzner} and Karel {Hájek}",
  title="Electrical noise and sensitivity of piezoceramic sensors",
  booktitle="NDT in Progress, 2nd International Workshop of NDT Experts - Proceedings",
  year="2003",
  volume="1",
  number="1",
  pages="7",
  publisher="Brno University of Technology",
  address="Brno",
  isbn="80-214-2475-3"
}