Head of Press and Information Office
Dr. Dr. Jens Simon
Phone: +49 531 592-3005
Email:
jens.simon(at)ptb.de
The project aimed to develop humidity calibration methods and measurement techniques for air temperatures above 100 °C in industrial applications. For this purpose, TU Darmstadt has developed a laser based, absolute (dTDLAS) hygrometer, the measurement principle of which was established in accordance with those developed by WG 3.42. The dTDLAS hygrometer was validated for temperatures up to 100 °C by means of a humidity standard in a measurement facility for humidity sensors, which was designed for this purpose at PTB (WG 3.41/3.42). Furthermore, PTB assisted in planning, completion and evaluation of measurements below 100 °C air temperature. Based on the validation by PTB, the dTDLAS hygrometer of TU Darmstadt has been successfully installed and applied at a roast house in Italy by INRIM and TU-Darmstadt.
Dr. Dr. Jens Simon
Phone: +49 531 592-3005
Email:
jens.simon(at)ptb.de
Karin Conring
Phone: +49 531 592-3006
Fax: +49 531 592-3008
Email:
karin.conring(at)ptb.de
Physikalisch-Technische Bundesanstalt
Bundesallee 100
38116 Braunschweig