Noise-resistant two-wavelength interferometry for single-shot measurement of high-gradient flows
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F23%3A00576506" target="_blank" >RIV/61388998:_____/23:00576506 - isvavai.cz</a>
Alternative codes found
RIV/46747885:24220/23:00010953
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0143816623000349?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0143816623000349?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.optlaseng.2023.107505" target="_blank" >10.1016/j.optlaseng.2023.107505</a>
Alternative languages
Result language
angličtina
Original language name
Noise-resistant two-wavelength interferometry for single-shot measurement of high-gradient flows
Original language description
This paper presents a new robust approach to measuring dynamic phenomena with high gradients using two-wavelength high-speed interferometry. A multiplexed interferogram with two different wavelengths and spatial-carrier frequencies is captured by a single high-speed camera shot. Quantitative processing of the interferogram is based on Fourier analysis, which is followed by a robust procedure to retrieve the unwrapped phase map with single-wavelength accuracy but with an extended range of unambiguity. This method is significantly more noise-resistant than the standard two-wavelength technique, which is sensitive to noise and synthetic phase distortion. The method was successfully applied to studying shock waves in a transonic compressor blade cascade in an industrial aerodynamic laboratory, where single-wavelength and standard two-wavelength approaches fail.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20302 - Applied mechanics
Result continuities
Project
<a href="/en/project/LTAUSA19036" target="_blank" >LTAUSA19036: Advanced experimental research on synchronous and non-synchronous blade vibration</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Optics and Lasers in Engineering
ISSN
0143-8166
e-ISSN
1873-0302
Volume of the periodical
164
Issue of the periodical within the volume
May
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
10
Pages from-to
107505
UT code for WoS article
000943546600001
EID of the result in the Scopus database
2-s2.0-85147543596