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TOFEL, P. ŠIKULA, J.
Originální název
ELECTRO-ULTRASONIC SPECTROSCOPY FOR TESTING QUALITY OF RESISTIVES MATERIALS
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
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.
Klíčová slova
electro-ultrasonic, resistive materials, varistors, testing
Autoři
TOFEL, P.; ŠIKULA, J.
Rok RIV
2009
Vydáno
23. 4. 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" }