Phase-sensitive modulation thermography and its applications for NDE

Datong Wu; Antonio Salerno; Bernd Schoenbach; Hans Hallin; Gerhard Busse

doi:10.1117/12.271641

4 April 1997 Phase-sensitive modulation thermography and its applications for NDE

Datong Wu, Antonio Salerno, Bernd Schoenbach, Hans Hallin, Gerhard Busse

Proceedings Volume 3056, Thermosense XIX: An International Conference on Thermal Sensing and Imaging Diagnostic Applications; (1997) https://doi.org/10.1117/12.271641
Event: AeroSense '97, 1997, Orlando, FL, United States

Abstract

The advantages of phase sensitive modulation thermography (also called lockin thermography) are here illustrated together with some applications of nondestructive evaluation (NDE) on advanced materials and large structures. Lockin thermography has shown to be a versatile tool for rapid inspection of large surfaces and detection of defects in materials where other NDE techniques are not able to give good results. Besides this, the phase angle image eliminates many undesired effects like inhomogeneous distribution of surface heating that make images obtained with pulse thermography difficult to interpret.

Citation Download Citation

Datong Wu, Antonio Salerno, Bernd Schoenbach, Hans Hallin, and Gerhard Busse "Phase-sensitive modulation thermography and its applications for NDE", Proc. SPIE 3056, Thermosense XIX: An International Conference on Thermal Sensing and Imaging Diagnostic Applications, (4 April 1997); https://doi.org/10.1117/12.271641

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