Abstract
This paper describes the development of a Electronic Speckle Pattern Interferometer (ESPI) for measurement of full field two-dimensional concentration gradients as one fluid diffuses into another. The construction and performance of the system is discussed with specific emphasis on developing the interferometer for investigating the mass transfer from a surface into a moving fluid. The system uses a Mach-Zehnder interferometer with a commercially available CCD camera for image acquisition. A phase-shifting algorithm is employed to give full field measurements. Theory pertaining to the optical process involved in these methods is presented with emphasis on optimising the optics by comparison to experimental data. The calculation of the Gladstone-Dale constant for each constituent within a binary mixture is necessary for qualitative measurements and is discussed.
Original language | English |
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Article number | IMECE2004-59775 |
Pages (from-to) | 521-526 |
Number of pages | 6 |
Journal | American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED |
Volume | 260 |
DOIs | |
Publication status | Published - 2004 |
Event | 2004 ASME International Mechanical Engineering Congress and Exposition, IMECE 2004 - Anaheim, CA, United States Duration: 13 Nov 2004 → 19 Nov 2004 |