J. Phys. IV France
Volume 125, June 2005
Page(s) 665 - 668

J. Phys. IV France 125 (2005) 665-668

DOI: 10.1051/jp4:2005125152

Emissivity measurements by means of combined photoacoustics and modulated IR radiometry

J. Gibkes, J.L.N. Fotsing, B.K. Bein and J. Pelzl

Experimental Physics III, Solid State Spectroscopy, Ruhr-University Bochum, Germany

A new method for the determination of the emissivity $\epsilon$ is presented, which relies on thermal wave excitation by intensity-modulated heating in the visible spectrum and on simultaneous detection of the response in the transmission configuration of thermal waves by means of IR radiometry and photoacoustics (PA).

© EDP Sciences 2005