Publication detail

1/f Noise in Piezoceramic Samples

MAJZNER, J. ŠTRUNC, M.

Czech title

Šum 1/f v piezokeramických vzorcích

English title

1/f Noise in Piezoceramic Samples

Type

conference paper

Language

en

Original abstract

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 permitittivity and frequency. We proved, in accordance with experimental results, that at low frequencies is the polarisation noise of 1/f type.

Czech abstract

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 permitittivity and frequency. We proved, in accordance with experimental results, that at low frequencies is the polarisation noise of 1/f type.

English abstract

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 permitittivity and frequency. We proved, in accordance with experimental results, that at low frequencies is the polarisation noise of 1/f type.

Keywords in English

thermal noise, polarisation noise, fluctuations

RIV year

2004

Released

01.01.2003

Publisher

CNRL

Location

Brno

ISBN

80-239-1005-1

Book

Noise and Fluctuations

Pages count

4

BIBTEX


@inproceedings{BUT9398,
  author="Jiří {Majzner} and Marian {Štrunc},
  title="1/f Noise in Piezoceramic Samples",
  booktitle="Noise and Fluctuations",
  year="2003",
  month="January",
  publisher="CNRL",
  address="Brno",
  isbn="80-239-1005-1"
}