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CARBOL, L. KUSÁK, I. MARTINEK, J.
Originální název
Measurement of Material Properties Using Deterministic White Noise
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
This paper describes a comparison of two acoustic non-destructive methods for measurement of Young's modulus of axially vibrating bars made of various metals. The first method is a classical impact-echo with frequency analysis and the second method is based on deterministic white noise MLS generator. Both methods give comparable results but excitation by white noise appears to be more sensitive and can reveal higher harmonics which would otherwise be damped very quickly. Another advantage of white noise is the possibility of continuous automated measurement. On the other hand, the transducer fixed at the specimen presents an added mass which lowers the frequencies and this effect must be taken into account.
Klíčová slova
MLS, Impact-echo, Young modulus, White noise, Impulse response, Linear time-invariant system
Autoři
CARBOL, L.; KUSÁK, I.; MARTINEK, J.
Rok RIV
2014
Vydáno
9. 10. 2014
Nakladatel
Vysoké učení technické v Brně
Místo
Praha
ISBN
978-80-214-5018-9
Kniha
XIth European Conference on NDT
Číslo edice
1
ISSN
1435-4934
Periodikum
The e-Journal of Nondestructive Testing
Ročník
Stát
Spolková republika Německo
Strany od
Strany do
7
Strany počet
BibTex
@inproceedings{BUT111023, author="Ladislav {Carbol} and Ivo {Kusák} and Jan {Martinek}", title="Measurement of Material Properties Using Deterministic White Noise", booktitle="XIth European Conference on NDT", year="2014", journal="The e-Journal of Nondestructive Testing", volume="2014", number="1", pages="1--7", publisher="Vysoké učení technické v Brně", address="Praha", isbn="978-80-214-5018-9", issn="1435-4934" }