0424444 - ÚT 2014 RIV PT eng C - Conference Paper (international conference)
Vít, T. - Lédl, Vít - Doleček, Roman - Psota, Pavel - Trávníček, Zdeněk
Perspectives in holografic interferometry.
8th World Conference on Experimental Heat Transfer, Fluid Mechanics, and Thermodynamics. Lisabon: Instituto Superior Técnico, 2013 - (Coelho, P.; Costa, M.), s. 91-91. ISBN 978-972-8620-23-3.
[World Conference on Experimental Heat Transfer, Fluid Mechanics, and Thermodynamics /8./. Lisabon (PT), 16.06.2013-20.06.2013]
R&D Projects: GA ČR(CZ) GCP101/11/J019
Institutional support: RVO:61388998 ; RVO:61389021
Keywords : holographic interferometry * synthetic jet * tomographic reconstruction
Subject RIV: JU - Aeronautics, Aerodynamics, Aircrafts

Digital Holographic Interferometry (DHI) is a contactless, non-invasive and precise experimental method. The article presents an overview of the recent development of DHI based on a modified Twymann-Green setup for measurements of asymmetric temperature fields in moving pulsatile fluids (e.g. synthetic jets). The developed experimental setup, synchronization method, and phase averaging technique are discussed. Besides, preliminary results obtained by tomography focusing on 3D temperature fields are shown too. A mathematical basis for a tomographic reconstruction is the inverse Radon transformation.
Permanent Link: http://hdl.handle.net/11104/0230600