Publication result detail

Electrical noise and sensitivity of piezoceramic sensors

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

Original Title

Electrical noise and sensitivity of piezoceramic sensors

English Title

Electrical noise and sensitivity of piezoceramic sensors

Type

Paper in proceedings (conference paper)

Original Abstract

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.

English abstract

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.

Keywords

piezoceramic sensors, electrical noise, polarization, sensitivity

Key words in English

piezoceramic sensors, electrical noise, polarization, sensitivity

Authors

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

Released

01.01.2003

Publisher

Brno University of Technology

Location

Brno

ISBN

80-214-2475-3

Book

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

Volume

1

Pages from

249

Pages count

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"
}