Speckle interferometry in the long-wave infrared for combining holography and thermography in a single sensor: applications to nondestructive testing: The FANTOM Project

Marc P. Georges

doi:10.1117/12.2191133

22 June 2015 Speckle interferometry in the long-wave infrared for combining holography and thermography in a single sensor: applications to nondestructive testing: The FANTOM Project

Marc P. Georges

Author Affiliations +

Proceedings Volume 9525, Optical Measurement Systems for Industrial Inspection IX; 95251L (2015) https://doi.org/10.1117/12.2191133
Event: SPIE Optical Metrology, 2015, Munich, Germany

Abstract

Speckle interferometry in the thermal wavelengths range (long-wave infrared, 8-14 μm), combining a CO₂ laser and recording with an uncooled microbolometer camera is presented. In this wavelength range specklegrams are affected by the thermal radiation emitted by objects at room temperature. This allows simultaneously capturing temperature and surface shape information about objects. The FANTOM project is based on this concept and an instrument was developed to take advantage of this natural data fusion. It has been used in a variety of nondestructive testing applications where both information are useful, specifically in aeronautical composite structures.

Citation Download Citation

Marc P. Georges "Speckle interferometry in the long-wave infrared for combining holography and thermography in a single sensor: applications to nondestructive testing: The FANTOM Project", Proc. SPIE 9525, Optical Measurement Systems for Industrial Inspection IX, 95251L (22 June 2015); https://doi.org/10.1117/12.2191133

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