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Digital holographic interferometry in the long-wave infrared range for measuring large deformations of space components under thermal-vacuum testing
Published:
09 July 2018
by MDPI
in The Eighteenth International Conference of Experimental Mechanics
session ICEM 2018
Abstract:
Holographic interferometry at around 10 µm wavelengths has many advantages. It offers the possibility of large deformation measurement, while being much less sensitive to external perturbations. We present the state-of-the art of this technique applied to several industrial cases of the space industry. In particular, we demonstrate that the technique is well adapted to measurement of full-field deformation maps of space structures undergoing large temperature variations typical to what they experience in space conditions.
Keywords: digital holography; long-wave infrared; space testing