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4 April 1997 Phase-sensitive modulation thermography and its applications for NDE
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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.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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);

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