Detail publikačního výsledku

Fracture related electromagnetic emission measurement and excess noise analysis of reinforced composites

MACKŮ, R.; ŠICNER, J.; KOKTAVÝ, P.; TRČKA, T.

Originální název

Fracture related electromagnetic emission measurement and excess noise analysis of reinforced composites

Anglický název

Fracture related electromagnetic emission measurement and excess noise analysis of reinforced composites

Druh

Článek WoS

Originální abstrakt

Electrical properties of several types of reinforced composites were investigated. AC and DC resistivities were measured, and the frequency behavior along with parasitic components was put together in order to create equivalent electrical circuit. It was used for electrical noise measurement corrections. It turns out that samples produces high level Johnson-Nyquist noise and 1/f noise when current bias is applied. We have discovered that electrical contact metallization affects directly the 1/f noise and the bulk material is responsible for white-like Johnson-Nyquist noise. We managed to get information about the suitability of the various metals in view of noise generation and the silver conductive pint seems to be proper chose. Finally, the electromagnetic emission signal, which in turn depends on cracks, was measured and comparison with conventional acoustic emission was put forward.

Anglický abstrakt

Electrical properties of several types of reinforced composites were investigated. AC and DC resistivities were measured, and the frequency behavior along with parasitic components was put together in order to create equivalent electrical circuit. It was used for electrical noise measurement corrections. It turns out that samples produces high level Johnson-Nyquist noise and 1/f noise when current bias is applied. We have discovered that electrical contact metallization affects directly the 1/f noise and the bulk material is responsible for white-like Johnson-Nyquist noise. We managed to get information about the suitability of the various metals in view of noise generation and the silver conductive pint seems to be proper chose. Finally, the electromagnetic emission signal, which in turn depends on cracks, was measured and comparison with conventional acoustic emission was put forward.

Klíčová slova

Reinforced composites; electromagnetic emission; excess noise; contact noise.

Klíčová slova v angličtině

Reinforced composites; electromagnetic emission; excess noise; contact noise.

Autoři

MACKŮ, R.; ŠICNER, J.; KOKTAVÝ, P.; TRČKA, T.

Rok RIV

2015

Vydáno

03.06.2014

Nakladatel

Elsevier

ISSN

2211-8128

Periodikum

Procedia Materials Science

Svazek

2014

Číslo

3

Stát

Nizozemsko

Strany od

116

Strany do

121

Strany počet

6

BibTex

@article{BUT109253,
  author="Robert {Macků} and Jiří {Šicner} and Pavel {Koktavý} and Tomáš {Trčka}",
  title="Fracture related electromagnetic emission measurement and excess noise analysis of reinforced composites",
  journal="Procedia Materials Science",
  year="2014",
  volume="2014",
  number="3",
  pages="116--121",
  doi="10.1016/j.mspro.2014.06.022",
  issn="2211-8128"
}