Publication detail

NEW POSIBILITIES IN NON DESTRUCTIVE TESTING BY ELECTRO-ULTRASONIC SPECTROSCOPY

TOFEL, P.

Original Title

NEW POSIBILITIES IN NON DESTRUCTIVE TESTING BY ELECTRO-ULTRASONIC SPECTROSCOPY

Type

conference paper

Language

English

Original Abstract

This paper describes the electro-ultrasonic spectroscopy as method of non-destructive testing. Electro-ultrasonic spectroscopy is based on interaction of ultrasonic signal and electric signal in conductive materials. Ultrasonic signal changes the contact area between conducting grains in the sample, thus resistance of the sample is modulated by frequency of ultrasonic excitation. Defects and cracks in the sample structure are the sources of new intermodulation signal. The frequency of this signal is given by superposition or subtraction of exciting frequencies. This method is very sensitive because helps to evaluate the intermodulation signal on the frequency different from exciting frequencies of electrical and ultrasonic signal.

Keywords

Electric signal, Ultrasonic signal, Crack, Non-destructive testing, Resistance change

Authors

TOFEL, P.

RIV year

2012

Released

11. 10. 2012

Location

Brno

ISBN

978-80-214-4594-9

Book

New Trends in Physics 2012

Edition number

1

Pages from

81

Pages to

84

Pages count

4

BibTex

@inproceedings{BUT95680,
  author="Pavel {Tofel}",
  title="NEW POSIBILITIES IN NON DESTRUCTIVE TESTING BY ELECTRO-ULTRASONIC SPECTROSCOPY",
  booktitle="New Trends in Physics 2012",
  year="2012",
  number="1",
  pages="81--84",
  address="Brno",
  isbn="978-80-214-4594-9"
}