Publication detail

Noise to signal ratio for piezoceramic sensors

MAJZNER, J., PAVELKA, J., ŠTRUNC, M., ŠIKULA, J.

Original Title

Noise to signal ratio for piezoceramic sensors

Type

conference paper

Language

English

Original Abstract

Thermal noise, polarisation noise and low frequency 1/f noise are the main sources of voltage or current fluctuation in piezoceramic sensors. Noise spectral density of thermal and polarisation noise is proportional to sensor equivalent parallel resistance and decreases with increasing frequency. In the frequency range where sensor mechanical resonances appear noise spectral density may be expressed by the equation for thermal noise using equivalent series resistance value. Signal to noise ratio depends on sensor geometry and sample polarisation. Using noise generator and piezoceramic actuator, signal to noise ratio for different amplifiers and sensors was determined.

Keywords

electrical noise, thermal noise, polarisation noise, piezocemaric sensor

Authors

MAJZNER, J., PAVELKA, J., ŠTRUNC, M., ŠIKULA, J.

RIV year

2002

Released

1. 1. 2002

Publisher

Zdeněk Novotný

Location

Brno

ISBN

80-214-2180-0

Book

Electronic devices and systems 02 - Proceedings

Edition number

1

Pages from

107

Pages to

113

Pages count

7

BibTex

@inproceedings{BUT4817,
  author="Jiří {Majzner} and Jan {Pavelka} and Marian {Štrunc} and Josef {Šikula}",
  title="Noise to signal ratio for piezoceramic sensors",
  booktitle="Electronic devices and systems 02 - Proceedings",
  year="2002",
  number="1",
  pages="7",
  publisher="Zdeněk Novotný",
  address="Brno",
  isbn="80-214-2180-0"
}