Publication detail

Analysis of excess noise sources in concrete composite materials and impact on electromagnetic emission measurement

MACKŮ, R. KOKTAVÝ, P. TRČKA, T. ŠICNER, J. HOLCMAN, V. SADOVSKÝ, P.

Original Title

Analysis of excess noise sources in concrete composite materials and impact on electromagnetic emission measurement

Type

conference paper

Language

English

Original Abstract

This paper deals with an excess noise sources in concrete materials. The theoretical description is put forward as well as supporting experiments of real samples. Physical variables under consideration are spectral densities of voltage and/or current fluctuation for different sample dimension and electrical excitation. It managed to get information about Johnson-Nyquist noise, 1/f noise and Polarization noise contributions. These individual components define detection limit or ability to recognize electromagnetic emission signal when mechanical load is applied and micro-cracks are created. Described investigations also pointed out real requirement on noise sensing equipment and sample preparation methodology.

Keywords

noise; dielectric; concrete; spectral density; 1/f

Authors

MACKŮ, R.; KOKTAVÝ, P.; TRČKA, T.; ŠICNER, J.; HOLCMAN, V.; SADOVSKÝ, P.

RIV year

2013

Released

28. 6. 2013

Location

Montpellier

ISBN

978-1-4799-0670-3

Book

2013 22nd International Conference on Noise and Fluctuations (ICNF), IEEE Catalog Number CFP1392N-USB

Pages from

Th-P-12-1

Pages to

Th-P-12-4

Pages count

4