On the Issue of Typical Grain Size Assessment by the Methods of Broadband Laser Opto-Acoustics
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00312801" target="_blank" >RIV/68407700:21110/17:00312801 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.755.212" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.755.212</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.755.212" target="_blank" >10.4028/www.scientific.net/KEM.755.212</a>
Alternative languages
Result language
angličtina
Original language name
On the Issue of Typical Grain Size Assessment by the Methods of Broadband Laser Opto-Acoustics
Original language description
It is shown that one of the express-methods for studying the internal structure and phase composition of geomaterial samples is broadband acoustic spectroscopy with laser sources of ultrasound. Theoretical assessment of time profiles and spectrums of opto-acoustic signals are presented. Numerical modelling of the spectrums and time profiles of ultrasound signals generated in opto-acoustic generators made of a different material is performed. The influence of diffraction and damping in rocks on the above characteristics is studied. The amplitude spectrum and time profiles of ultrasonic pulses transmitted through samples of marble of various thicknesses in which the most part of the characteristic grain sizes lies in the range of 500 μm - 1 mm are constructed. It has been established that, according to the amplitude spectrum of the original signal and the transmitted through the sample signal, it is possible to restore the characteristic dimensions of the grains.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
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Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Structural and Mechanical Engineering for Security and Prevention
ISBN
978-3-0357-1236-0
ISSN
1013-9826
e-ISSN
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Number of pages
8
Pages from-to
212-219
Publisher name
Trans Tech Publications
Place of publication
Curich
Event location
Praha
Event date
Jun 14, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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