Abstract
The application of digital phase shift holographic interferometry to flow-visualization and flow temperature measurement of a 2D thermal flow field was experimentally investigated. An improved recording system for two reference beam phase shift holographic interferometry is set up for this experiment, and details of this experimental technique are described. The phase distribution obtained by this technique presents an excellent picture of flow visualization. From this phase image, temperature distribution of the 2D thermal flow field is also calculated and compared with some measured values obtained using thermocouple probes.
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Mao, T.S., Zen, L.W. Digital phase shift holographic interferometry and its application in the experimental flow study. Opt Quant Electron 23, 593–601 (1991). https://doi.org/10.1007/BF00620085
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DOI: https://doi.org/10.1007/BF00620085