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

Robert Macků; Pavel Koktavý; Tomas Trčka; Vladimir Holcman

doi:10.4028/www.scientific.net/KEM.592-593.529

Paper Titles

Effect of Heat Treatment on Formation of Al-Al₃Ni Hypereutectic Alloys
p.513

Formation of Structurally Complex U-Phase in Al₇₂Pd_12.8Co_15.2 Alloy
p.517

Using Acoustic Emission in Fracture Monitoring of Cementitious Composites
p.521

Influence of the Surface Treatment of Tubes on the Heat Transfer in Low Pressure Atmosphere
p.525

Experimental Studies of Excess Noise Sources in Concrete Based Materials as a Limiting Factor for Electromagnetic Emission Measurement
p.529

Mechanical Induced Defects and Fractures in the Silicon Solar Cell Structure
p.533

Comparing the Properties of Polypropylene Fibers Contained in Ordinary and Lightweight Concrete Using Three-Point Bending Tests with Stress Concentrator and Acoustic Emission Method
p.537

A FPGA-PC Based Acoustic Emission System with Logarithmic Preamplifier for Fracture Monitoring
p.541

Monitoring of the Damage in Stone Blocks by Means of Non-Destructive Methods
p.545

HomeKey Engineering MaterialsKey Engineering Materials Vols. 592-593Experimental Studies of Excess Noise Sources in...

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

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.

You might also be interested in these eBooks

Materials Structure & Micromechanics of Fracture VII

View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 592-593)

Pages:

529-532

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.592-593.529

Citation:

Cite this paper

Online since:

November 2013

Authors:

Robert Macků, Pavel Koktavý, Tomas Trčka, Vladimir Holcman

Keywords:

1/f Noise, Concrete, Dielectric, Johnson-Nyquist Noise, Noise Spectral Density

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] P. Koktavy: Experimental study of electromagnetic emission signals generated by crack generation in composite materials. Measurement Science and Tech., Vol. 10, pp.0-7. (2008).

DOI: 10.1088/0957-0233/20/1/015704

Google Scholar

[2] R. Macku, P. Koktavy: Analysis of fluctuation processes in forward-biased solar cells using noise spectroscopy, Physica status solidi(a), Vol. 207, pp.2387-2394. (2010).

DOI: 10.1002/pssa.201026206

Google Scholar

[3] A. Van Der Ziel: Noise in solid state devices and circuits, 1st ed., John Wiley & Sons. (1986).

Google Scholar

[4] H. Bittel: Noise in magnetic and dielectric materials, Physica B, Vol. 83, Issue 1. (1967).

Google Scholar

[5] V. Daniel: Dielectrics relaxation, Academic press, London. (1970).

Google Scholar