Detail publikačního výsledku

ELECTRO-ULTRASONIC SPECTROSCOPY FOR TESTING QUALITY OF RESISTIVES MATERIALS

TOFEL, P.; ŠIKULA, J.

Originální název

ELECTRO-ULTRASONIC SPECTROSCOPY FOR TESTING QUALITY OF RESISTIVES MATERIALS

Anglický název

ELECTRO-ULTRASONIC SPECTROSCOPY FOR TESTING QUALITY OF RESISTIVES MATERIALS

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The ultrasonic signal is widely used in non-destructive spectroscopy. The paper presents the new method of the non-destructive testing of resistives materials. The non-linear elec-tro-ultrasonic spectroscopy is new method which has higher sensitivity and range of using than common ultrasonic testing method which has many problems. This non-destructive method consists of two signals. The electric ac signal with frequency fE and the ultrasonic signal with frequency fU. The ultrasonic signal changes the resistance ?R of the measured sample by frequency of ultrasonic excitation fU. Defects in the material are causer larger changes resistance ?R then in the material without defects for the same amplitude of ultra-sonic signal.

Anglický abstrakt

The ultrasonic signal is widely used in non-destructive spectroscopy. The paper presents the new method of the non-destructive testing of resistives materials. The non-linear elec-tro-ultrasonic spectroscopy is new method which has higher sensitivity and range of using than common ultrasonic testing method which has many problems. This non-destructive method consists of two signals. The electric ac signal with frequency fE and the ultrasonic signal with frequency fU. The ultrasonic signal changes the resistance ?R of the measured sample by frequency of ultrasonic excitation fU. Defects in the material are causer larger changes resistance ?R then in the material without defects for the same amplitude of ultra-sonic signal.

Klíčová slova

electro-ultrasonic, resistive materials, varistors, testing

Klíčová slova v angličtině

electro-ultrasonic, resistive materials, varistors, testing

Autoři

TOFEL, P.; ŠIKULA, J.

Rok RIV

2010

Vydáno

23.04.2009

ISBN

978-80-214-3870-5

Kniha

Student EEICT 2009

Strany od

171

Strany do

175

Strany počet

5

BibTex

@inproceedings{BUT31796,
  author="Pavel {Tofel} and Josef {Šikula}",
  title="ELECTRO-ULTRASONIC SPECTROSCOPY FOR TESTING QUALITY OF RESISTIVES MATERIALS",
  booktitle="Student EEICT 2009",
  year="2009",
  pages="171--175",
  isbn="978-80-214-3870-5"
}