Analysis Of Rotating Component Strains Using Pulsed Espi

Richard W.T. Preater

doi:10.1117/12.967157

1 January 1987 Analysis Of Rotating Component Strains Using Pulsed Espi

Richard W.T. Preater

Proceedings Volume 0813, Optics and the Information Age; (1987) https://doi.org/10.1117/12.967157
Event: 14th Congress of the International Commission for Optics, 1987, Quebec, Canada

Abstract

A large proportion of the experimental stress analysis performed is carried out under laboratory conditions. A non-contact method of analysis which may be used under service operating conditions, requiring only minor component surface preparation and little or no plant shut-down, is therefore particularly attractive. Electronic Speckle Pattern Interferometry ( ESP') , a technique for the measurement of in-plane displacements on static components, was pioneered at Loughborough University by Butters and Leendertz 1). Using a pulsed laser with a pulse width of 20 ns in place of the c/w laser will not only remove environmental vibration of the system but will also freeze component movement and widen the scope of the technique to dynamic applications. The development of pulsed laser ESPI for the analysis of rotating component strains is being undertaken at The City University.

Citation Download Citation

Richard W.T. Preater "Analysis Of Rotating Component Strains Using Pulsed Espi", Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); https://doi.org/10.1117/12.967157

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