Publication detail

Analysis of Acoustic Emission Signals

KNÁPEK, A. MAJZNER, J. SEDLÁK, P.

Original Title

Analysis of Acoustic Emission Signals

English Title

Analysis of Acoustic Emission Signals

Type

conference paper

Language

en

Original Abstract

Acoustic Emission (AE) is one of the nondestructive techniques, which experienced great progress during the last twenty years and still holding its significant position among other non-destructive evaluation (NDE) techniques. It is used mainly to localize crack in solid materials, especially in non-metalic ones, which are mechanically stressed. During the material deformation (when a crack is generated) the electric changes are appearing at the faces of the cracks. The electric dipole system then becomes a source of voltage induced on metal electrodes. The recorded electric signal consists of crack walls self vibration given by crack length due to an ultrasonic wave given by sample dimensions. This entry describes the usage of the acoustic and electromagnetic emitted signals from used piezo-ceramic sensors in order to localize the position of the crack in the granite sample. For computing position of crack were used algorithms developed in MATLAB v7.0 which processed AE and EME singal data file.

English abstract

Acoustic Emission (AE) is one of the nondestructive techniques, which experienced great progress during the last twenty years and still holding its significant position among other non-destructive evaluation (NDE) techniques. It is used mainly to localize crack in solid materials, especially in non-metalic ones, which are mechanically stressed. During the material deformation (when a crack is generated) the electric changes are appearing at the faces of the cracks. The electric dipole system then becomes a source of voltage induced on metal electrodes. The recorded electric signal consists of crack walls self vibration given by crack length due to an ultrasonic wave given by sample dimensions. This entry describes the usage of the acoustic and electromagnetic emitted signals from used piezo-ceramic sensors in order to localize the position of the crack in the granite sample. For computing position of crack were used algorithms developed in MATLAB v7.0 which processed AE and EME singal data file.

Keywords

acoustic emission, electromagnetic emission, defect localization

Released

15.11.2007

Publisher

Ing. Zdeněk Novotný CSc.

Location

Ondráčkova 105, Brno

ISBN

9788073550783

Book

New Trends in Physics 2007 - Proceedings of the conference

Pages from

61

Pages to

64

Pages count

4

BibTex


@inproceedings{BUT26629,
  author="Alexandr {Knápek} and Jiří {Majzner} and Petr {Sedlák}",
  title="Analysis of Acoustic Emission Signals",
  annote="Acoustic Emission (AE) is one of the nondestructive techniques, which experienced great progress during the last twenty years and still holding its significant position among other non-destructive evaluation (NDE) techniques. It is used mainly to localize crack in solid materials, especially in non-metalic ones, which are mechanically stressed. During the material deformation (when a crack is generated) the electric changes are appearing at the faces of the cracks. The electric dipole system then becomes a source of voltage induced on metal electrodes. The recorded electric signal consists of crack walls self vibration given by crack length due to an ultrasonic wave given by sample dimensions. This entry describes the usage of the acoustic and electromagnetic emitted signals from used piezo-ceramic sensors in order to localize the position of the crack in the granite sample. For computing position of crack were used algorithms developed in MATLAB v7.0 which processed AE and EME singal data file.",
  address="Ing. Zdeněk Novotný CSc.",
  booktitle="New Trends in Physics 2007 - Proceedings of the conference",
  chapter="26629",
  institution="Ing. Zdeněk Novotný CSc.",
  year="2007",
  month="november",
  pages="61--64",
  publisher="Ing. Zdeněk Novotný CSc.",
  type="conference paper"
}