GRANITE SAMPLE AND ELECTRO-ULTRASONIC SPECTROSCOPY

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F10%3APU87350" target="_blank" >RIV/00216305:26220/10:PU87350 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
GRANITE SAMPLE AND ELECTRO-ULTRASONIC SPECTROSCOPY
Original language description
Electro-ultrasonic spectroscopy is based on interaction of two signals. Electric AC signal with frequency fE and ultrasonic signal with frequency fU. The ultrasonic signal changes the resistance deltaR of the measured sample by frequency of ultrasonic excitation fU. Defects in the material are causes of larger resistance changes deltaR in comparison to a material without defects for the same amplitude of ultrasonic signal. We have tried applying electroultrasonic spectroscopy on rock sample of granite.The paper presents some results of this new method for the non-destructive testing of conducting and resistive material which was granite sample in our case. The non-linear electro-ultrasonic spectroscopy offers higher sensitivity and wider range of application than common ultrasonic testing method which has many problems.
Czech name
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Czech description
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Project
<a href="/en/project/GD102%2F09%2FH074" target="_blank" >GD102/09/H074: Diagnostics of material defects using the latest defectoscopic methods</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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