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PAVELKA, J., MAJZNER, J.
Original Title
Crack`s Wall Vibration Kinetics Determined by Electromagnetic Emission
Type
conference paper
Language
English
Original Abstract
Cracks creation was studied by simultaneous measurement of electromagnetic (EME) and acoustic (AE) emission signals. This method can improve localisation of the crack position, cracks plane orientation and its dimension. On the faces of new created crack electric charges constitute electric dipole system and due to crack walls vibration an EME signal is detected with frequency 1-10MHz corresponding to crack length 0.1 to 1 mm. The second source of EME signal is later activated due to whole sample mechanical vibrations with a frequency given by sample boundary conditions in the range 50-500kHz.
Key words in English
crack, noise spectroscopy, spectral density
Authors
RIV year
2002
Released
1. 1. 2002
Publisher
Spanish Society for NDT AEND
Location
LEGANES MADRID
ISBN
84-699-8573-6
Book
8th ECNDT Barcelona - Abstracts Book
Edition number
1
Pages from
234
Pages to
Pages count
BibTex
@inproceedings{BUT10531, author="Jan {Pavelka} and Jiří {Majzner}", title="Crack`s Wall Vibration Kinetics Determined by Electromagnetic Emission", booktitle="8th ECNDT Barcelona - Abstracts Book", year="2002", number="1", pages="1", publisher="Spanish Society for NDT AEND", address="LEGANES MADRID", isbn="84-699-8573-6" }