Detail publikačního výsledku

Characterisation of Acoustic and Electromagnetic Emission Sources

KOKTAVÝ, P., PAVELKA, J., ŠIKULA, J.

Originální název

Characterisation of Acoustic and Electromagnetic Emission Sources

Anglický název

Characterisation of Acoustic and Electromagnetic Emission Sources

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Cracks creation is accompanied by electric charge redistribution due to loosen chemical bonds. Electric charges on crack walls create a dipole momentum and crack wall vibrations produce time dependent electric and magnetic fields. An electric signal is induced on metal electrodes and after its analysis is carried out information on the crack wall movement can be obtained. For crack lengths below 1 mm the respective electrical signal has a frequency of over 2 MHz. In this paper the frequency analysi was performed in frequency band up to 5 MHz.

Anglický abstrakt

Cracks creation is accompanied by electric charge redistribution due to loosen chemical bonds. Electric charges on crack walls create a dipole momentum and crack wall vibrations produce time dependent electric and magnetic fields. An electric signal is induced on metal electrodes and after its analysis is carried out information on the crack wall movement can be obtained. For crack lengths below 1 mm the respective electrical signal has a frequency of over 2 MHz. In this paper the frequency analysi was performed in frequency band up to 5 MHz.

Klíčová slova

acoustic emission

Klíčová slova v angličtině

acoustic emission

Autoři

KOKTAVÝ, P., PAVELKA, J., ŠIKULA, J.

Vydáno

01.01.2003

Nakladatel

Brno University of Technology

Místo

Prague

ISBN

80-214-2475-3

Kniha

NDT in Progress

Strany od

129

Strany počet

8

BibTex

@inproceedings{BUT9390,
  author="Pavel {Koktavý} and Jan {Pavelka} and Josef {Šikula}",
  title="Characterisation of Acoustic and Electromagnetic Emission Sources",
  booktitle="NDT in Progress",
  year="2003",
  pages="8",
  publisher="Brno University of Technology",
  address="Prague",
  isbn="80-214-2475-3"
}