Paper
15 February 1993 In-plane displacement measurements at tip speeds of more than 260m s-1
Richard W. T. Preater, Robin C. Swain
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Abstract
This paper discusses the measurement of in-plane displacements on discs driven at high rotational speeds using an optical technique called Electronic Speckle Pattern Interferometry (ESPI). Some of the basic theory concerning rotating components is discussed followed by an explanation of how interference fringes are generated on the test specimen. The interpretation of the fringes and method of analysis using a well established fringe analysis technique based on the two dimensional Fourier transform is then discussed. The extracted data is compared with mathematical models in the results section.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard W. T. Preater and Robin C. Swain "In-plane displacement measurements at tip speeds of more than 260m s-1", Proc. SPIE 1756, Interferometry: Applications, (15 February 1993); https://doi.org/10.1117/12.140793
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KEYWORDS
Fringe analysis

Fourier transforms

Speckle pattern

Interferometry

Interferometers

Image processing

Modulation

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