Publication detail

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

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

Original Title

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

Type

conference proceedings

Language

English

Original Abstract

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.

Keywords

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

Authors

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

Released

1. 7. 2013

Publisher

VUTIUM

Location

Brno

ISBN

978-80-214-4739-4

Pages from

215

Pages to

215

Pages count

1

BibTex

@proceedings{BUT101572,
  editor="Robert {Macků} and Pavel {Koktavý} and Tomáš {Trčka} and Vladimír {Holcman}",
  title="Experimental Studies of Excess Noise Sources in Concrete Based Materials as a Limiting Factor for Electromagnetic Emission Measurement",
  year="2013",
  pages="215--215",
  publisher="VUTIUM",
  address="Brno",
  isbn="978-80-214-4739-4"
}