Detail publikačního výsledku

Measurement of Material Properties Using Deterministic White Noise

CARBOL, L.; KUSÁK, I.; MARTINEK, J.

Originální název

Measurement of Material Properties Using Deterministic White Noise

Anglický název

Measurement of Material Properties Using Deterministic White Noise

Druh

Stať ve sborníku v databázi WoS či Scopus

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.

Anglický 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

Klíčová slova v angličtině

MLS, Impact-echo, Young modulus, White noise, Impulse response, Linear time-invariant system

Autoři

CARBOL, L.; KUSÁK, I.; MARTINEK, J.

Rok RIV

2017

Vydáno

09.10.2014

Nakladatel

Vysoké učení technické v Brně

Místo

Praha

ISBN

978-80-214-5018-9

Kniha

XIth European Conference on NDT

ISSN

1435-4934

Periodikum

The e-Journal of Nondestructive Testing

Svazek

2014

Stát

Spolková republika Německo

Strany od

1

Strany do

7

Strany počet

7

Plný text v Digitální knihovně

http://hdl.handle.net/

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"
}