Sodnik, ZoranTiziani, Hans J.2011-02-242016-03-312011-02-242016-03-311987366474413http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-61011http://elib.uni-stuttgart.de/handle/11682/4341http://dx.doi.org/10.18419/opus-4324Interferometry is used for the detection of thermal waves to study material properties. A symmetrical interferometer as thermal expansion detector was developed for photothermal nondestructive material analysis. After mixing a phase shifted reference signal electrically to the interferometer signal, phase and amplitude exchange phenomena have been observed.eninfo:eu-repo/semantics/openAccessInterferometrie , Photothermische Methode , Zerstörungsfreie Werkstoffprüfung530conferenceObject2014-11-03