317 DOUBLE-SHOT 3-D DISPLACEMENT FIELD MEASUREMENT USING HYPERSPECTRAL INTERFEROMETRY

Tobias Reichold; Pablo Ruiz; Jonathan Huntley

doi:10.3390/ICEM18-05406

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252 Small displacement measurement of crack opening using One Pitch Phase Analysis (OPPA) method

317 DOUBLE-SHOT 3-D DISPLACEMENT FIELD MEASUREMENT USING HYPERSPECTRAL INTERFEROMETRY

Tobias V Reichold

^*,

Pablo D Ruiz

Jonathan M Huntley

¹ Loughborough University

Published: 28 June 2018 by MDPI in The Eighteenth International Conference of Experimental Mechanics session ICEM 2018

https://doi.org/10.3390/ICEM18-05406

Abstract:

A combination of a Michelson interferometer, a micro-optic element and a hyperspectral imager is used with broadband illumination to measure depth-resolved out-of-plane displacements without any scanning. Reference and deformed states of a transparent sample are recorded in single shots and used to evaluate the displacement field at different interfaces.

Keywords: hyperspectral interferometry, volume measurement, depth-resolved displacement, single-shot, optical coherence tomography, phase measurement

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Tobias Reichold

Pablo Ruiz

Jonathan Huntley