Detail publikačního výsledku

Experimental Studies of Excess Noise Sources in Concrete Based Materials as a Limiting Factor for Electromagnetic Emission Measurement

MACKŮ, R.; TRČKA, T.; HOLCMAN, V.; KOKTAVÝ, P.

Originální název

Experimental Studies of Excess Noise Sources in Concrete Based Materials as a Limiting Factor for Electromagnetic Emission Measurement

Anglický název

Experimental Studies of Excess Noise Sources in Concrete Based Materials as a Limiting Factor for Electromagnetic Emission Measurement

Druh

Článek WoS

Originální abstrakt

This paper deals with excess noise sources in dielectric materials. We focus especially on the concrete samples that are frequently tested to ensure information about the reliability and level of degradation. Nevertheless, the testing methods are limited mainly by the proper contact creation, signal detection and noise defined sensitivity. Our efforts are directed to the noise properties assessment. It turns out that the Johnson-Nyquist noise and the 1/f (flicker) noise are generated in the different regions with the different response to the internal or external electric field. In addition the noise analysis is affected by the internal polarization phenomena and the material residual humidity. This issue in connection with the sample geometrical properties and the dielectric noise measurement methodology take part in this paper.

Anglický abstrakt

This paper deals with excess noise sources in dielectric materials. We focus especially on the concrete samples that are frequently tested to ensure information about the reliability and level of degradation. Nevertheless, the testing methods are limited mainly by the proper contact creation, signal detection and noise defined sensitivity. Our efforts are directed to the noise properties assessment. It turns out that the Johnson-Nyquist noise and the 1/f (flicker) noise are generated in the different regions with the different response to the internal or external electric field. In addition the noise analysis is affected by the internal polarization phenomena and the material residual humidity. This issue in connection with the sample geometrical properties and the dielectric noise measurement methodology take part in this paper.

Klíčová slova

Johnson-Nyquist noise, 1/f noise, dielectric, concrete, noise spectral density

Klíčová slova v angličtině

Johnson-Nyquist noise, 1/f noise, dielectric, concrete, noise spectral density

Autoři

MACKŮ, R.; TRČKA, T.; HOLCMAN, V.; KOKTAVÝ, P.

Rok RIV

2017

Vydáno

01.01.2014

Nakladatel

Trans tech publication

Místo

Switzerland

ISSN

1013-9826

Periodikum

Key Engineering Materials (print)

Svazek

592-593

Číslo

1

Stát

Švýcarská konfederace

Strany od

529

Strany do

532

Strany počet

4

BibTex

@article{BUT105451,
  author="Robert {Macků} and Tomáš {Trčka} and Vladimír {Holcman} and Pavel {Koktavý}",
  title="Experimental Studies of Excess Noise Sources in Concrete Based Materials as a Limiting Factor for Electromagnetic Emission Measurement",
  journal="Key Engineering Materials (print)",
  year="2014",
  volume="592-593",
  number="1",
  pages="529--532",
  doi="10.4028/www.scientific.net/KEM.592-593.529",
  issn="1013-9826"
}