1. Digital Holographic Interferometry for the Measurement of Symmetrical Temperature Fields in Liquids
- Author
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Gramoz Cubreli, Pavel Psota, Petra Dančová, Vít Lédl, and Tomáš Vít
- Subjects
digital holographic interferometry ,pulsatile jets ,temperature fields ,Mach-Zehnder interferometer ,tomography ,Applied optics. Photonics ,TA1501-1820 - Abstract
In this paper, we present a method of quantitatively measuring in real-time the dynamic temperature field change and visualization of volumetric temperature fields generated by a 2D axial-symmetric heated fluid from a pulsatile jet in a water tank through off-axis digital holographic interferometry. A Mach-Zehnder interferometer on portable platform was built for the experimental investigation. The pulsatile jet was submerged in a water tank and fed with water with higher temperature. Tomographic approach was used to reconstruct the temperature fields through the Abel Transform and the filtered back-projection. Averaged results, tomographic view, standard deviation and errors are presented. The presented results reveal digital holographic interferometry as a powerful technique to visualize temperature fields in flowing liquids and gases.
- Published
- 2021
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