Determination of vibration phase with electronic speckle pattern interferometry (ESPI)

J. D. Valera, A. F. Doval, J. D C Jones

Research output: Contribution to journalArticle

Abstract

A novel stroboscopically-illuminated ESPI system is described for the simultaneous measurement of vibration amplitude and phase. The technique involves modulating both the illuminating pulse phase relative to the vibration, and the optical phase of the interferometer reference beam to generate eight video frames which are processed to yield vibration amplitude and phase.

Original languageEnglish
Pages (from-to)2292-2294
Number of pages3
JournalElectronics Letters
Volume28
Issue number25
Publication statusPublished - 3 Dec 1992

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