© Fraunhofer IWS Dresden
HiBarSens - Permeation analyzer for the determination of the water vapor transfer rate of ultra barrier foils and polymer webs
The application of a laser to determine permeation properties of high barrier materials in a highly sensitive, safe and fast manner is a most promising technology. The laser diode spectroscopic technique allows to detect even slightest amounts of permeated water vapor and thus to calculate the water vapor transfer rate (WVTR) of multi-coated foils and polymer webs.