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Proceedings Paper

Microbolometer-based infrared camera for the 3–5 µm spectral range
Author(s): Helmut Budzier; Volker Krause; Gerald Gerlach; Dimitar Wassiliew
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Paper Abstract

Until now Microbolometer cameras have been operated only in the long-wave infrared range (LWIR). Since microbolometers are now available with broadband windows and acceptable absorption in the mid-wave infrared range (MWIR), they are becoming more and more interesting for the MWIR range. Primarily for industrial applications, this wavelength range offers many advantages, e.g., for the measuring of glass temperatures or for supervision of furnace rooms. To achieve a sufficiently high measuring accuracy, such crucial MWIR peculiarities like carbon dioxide absorption lines and water-vapor absorption must be known. Such problems can be avoided by usage of narrowband filters. Usually, they have to be adjusted to the particular measurement task. The newly developed camera system is based on a 320 x 240 pixels LWIR microbolometer camera system. The optical channel had to be adapted to the microbolometer. In addition, special correction and calibrating procedures were implemented for the MWIR. The camera system is suitable for stationary use in harsh industrial environments. The robust housing may be completed by integrating water-cooling and air purge for the lens system. The camera is equipped with two trigger inputs for the synchronization with the process to be measured.

Paper Details

Date Published: 15 October 2005
PDF: 8 pages
Proc. SPIE 5964, Detectors and Associated Signal Processing II, 59640V (15 October 2005); doi: 10.1117/12.624758
Show Author Affiliations
Helmut Budzier, Dresden Univ. of Technology (Germany)
DIAS Infrared GmbH (Germany)
Volker Krause, Dresden Univ. of Technology (Germany)
Gerald Gerlach, Dresden Univ. of Technology (Germany)
Dimitar Wassiliew, DIAS Infrared GmbH (Germany)

Published in SPIE Proceedings Vol. 5964:
Detectors and Associated Signal Processing II
Jean-Pierre Chatard; Peter N. J. Dennis, Editor(s)

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