28 May 1993 Fourier transform fringe analysis of ESPI fringes from rotating components
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Proceedings Volume 1821, Industrial Applications of Optical Inspection, Metrology, and Sensing; (1993) https://doi.org/10.1117/12.145565
Event: Applications in Optical Science and Engineering, 1992, Boston, MA, United States
Abstract
The ability to measure in-plane displacement on the surface of a rotating structure under service conditions and real-time analysis to provide component strain distributions would form the ideal experimental optical technique. Pulsed Laser ESPI which can display interference patterns for in-plane displacement in conjunction with the Fourier transform method of fringe analysis is one attractive approach which is coming closer to this ideal. The optical system used enables a wide range of rotational speeds to be covered with tangential velocities up to 300 ms-1. The paper describes how the fringe analysis may be carried out using a 80486 desk top computer.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard W. T. Preater, Richard W. T. Preater, Robin C. Swain, Robin C. Swain, } "Fourier transform fringe analysis of ESPI fringes from rotating components", Proc. SPIE 1821, Industrial Applications of Optical Inspection, Metrology, and Sensing, (28 May 1993); doi: 10.1117/12.145565; https://doi.org/10.1117/12.145565
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