Share Email Print

Proceedings Paper

Direct comparison of two pyrometers and a low-cost thermographic camera for time resolved LWIR temperature measurements
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Contactless temperature sensing is state of the art and essential part of countless applications in the field of process control and automation. This contribution presents the case of a nondestructive thickness measurement method for polymeric coatings on concrete ground. Two pyrometers and a low-cost infrared camera were taken into account. The particular measurement results were compared with those of a more sophisticated infrared camera. It was found that the low-cost infrared camera has a lower noise level than the pyrometers, even for a single pixel. The opportunity to average over a large number of pixels and to establish a bias correction enables a further noise reduction by almost factor of 10. Furthermore, the temporal resolution of the infrared camera was investigated by means of a well-defined thermal oscillation. It could be demonstrated that the averaged time stamps are correct and the requirement of a minimum framerate of 50 Hz is met. Finally, the temperature transient on a polymer coated concrete block during and after a 10 s heating period was recorded with a pyrometer and the infrared camera. This experiment confirmed the suitability of the camera for the intended measurement method.

Paper Details

Date Published: 5 May 2017
PDF: 10 pages
Proc. SPIE 10214, Thermosense: Thermal Infrared Applications XXXIX, 1021414 (5 May 2017); doi: 10.1117/12.2261074
Show Author Affiliations
Rainer Krankenhagen, Bundesanstalt für Materialforschung und -prüfung (Germany)
Simon J. Altenburg, Bundesanstalt für Materialforschung und -prüfung (Germany)

Published in SPIE Proceedings Vol. 10214:
Thermosense: Thermal Infrared Applications XXXIX
Paolo Bison; Douglas Burleigh, Editor(s)

© SPIE. Terms of Use
Back to Top