Publication detail

ANALYSIS AND APPLICATIONS OF METHODS FOR NONLINEAR ULTRASONIC SPECTROSCOPY

Stepan Hefner, Karel Hajek, Petr Sedlak

Original Title

ANALYSIS AND APPLICATIONS OF METHODS FOR NONLINEAR ULTRASONIC SPECTROSCOPY

Type

conference paper

Language

English

Original Abstract

Present ultrasonic non-destructive testing (NDT) methods of material are mainly based on analysis of elastic wave reflection, absorption and interference. The ultrasonic testing has some practical limitations, mainly for inhomogeneous materials. The nonlinear ultrasonic spectroscopy is evolved as a new way to improving the NDT and it offer some new possibilities for the NDT. Therefore this paper offers the analysis, principles, limitations and various methods for nonlinear ultrasonic spectroscopy. Methods are mainly based on frequency analysis. Materials with undamaged structure are essentially linear in their response, while the same material, when damaged, becomes highly nonlinear. In spectrograms it's represented by harmonics and sideband generation. The first experimental results are also shown.

Keywords

ultrasonic, NDT, nonlinear ultrasonic spectroscopy

Authors

Stepan Hefner, Karel Hajek, Petr Sedlak

RIV year

2005

Released

1. 1. 2005

Publisher

University of Miskolc

Location

University of Miskolc, Miskolc, Hungary

ISBN

9636616787

Book

5th International Conference of PhD Students

Edition number

1

Pages from

313

Pages to

320

Pages count

8

BibTex

@inproceedings{BUT15030,
  author="Štěpán {Hefner} and Karel {Hájek} and Petr {Sedlák}",
  title="ANALYSIS AND APPLICATIONS OF METHODS FOR NONLINEAR ULTRASONIC SPECTROSCOPY",
  booktitle="5th International Conference of PhD Students",
  year="2005",
  number="1",
  pages="8",
  publisher="University of Miskolc",
  address="University of Miskolc, Miskolc, Hungary",
  isbn="9636616787"
}