Detail publikace

NON-DESTRUCTIVE TESTING OF A ROCK SAMPLE BY NON-LINEAR ULTRASONIC SPECTROSCOPY

TOFEL, P. ŠIKULA, J.

Originální název

NON-DESTRUCTIVE TESTING OF A ROCK SAMPLE BY NON-LINEAR ULTRASONIC SPECTROSCOPY

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

The ultrasonic spectroscopy is widely used in non-destructive testing. The method of non-linear ultrasonic spectroscopy is a new way in non-destructive testing, where the principal of this method is based on the detection of higher harmonic ultrasonic signals, which cause the non-linear interaction between mechanical waving and defects in rock sample structure. The measured sample was granite from Mrakotin, placed in the Czech Republic. The sample was stressed by high pressure about 320 kN. The applied stress leads to destruction of the sample structure and it is possible to see and measure the damage. We applied one ultrasonic signal with frequency 16.1 kHz and we have analyzed the peak value of the second and the third harmonic signal by Fast Fourier Transform. The paper presents our results measured before and after damage of the sample.

Klíčová slova

Spectroscopy, ultrasonic wave, granite

Autoři

TOFEL, P.; ŠIKULA, J.

Rok RIV

2007

Vydáno

15. 11. 2007

Nakladatel

Ing. Zdeněk Novotný CSc

Místo

Brno, Czech Republic

ISBN

978-80-7355-078-3

Kniha

NEW TRENDS IN PHYSICS 2007

Číslo edice

1

Strany od

142

Strany do

145

Strany počet

4

BibTex

@inproceedings{BUT28533,
  author="Pavel {Tofel} and Josef {Šikula}",
  title="NON-DESTRUCTIVE TESTING OF A ROCK SAMPLE BY NON-LINEAR ULTRASONIC SPECTROSCOPY",
  booktitle="NEW TRENDS IN PHYSICS 2007",
  year="2007",
  number="1",
  pages="142--145",
  publisher="Ing. Zdeněk Novotný CSc",
  address="Brno, Czech Republic",
  isbn="978-80-7355-078-3"
}