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Proceedings Paper

Fixed mounted infrared 2D and line cameras for industrial noncontact temperature measurement
Author(s): Peter Droegmoeller; Helmut Budzier; Guenter Hofmann; Volker Krause; Thomas Reichardt; Birgit Vollheim; Jens Vollheim; Gerald Gerlach
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Paper Abstract

New uniform camera electronics were developed for different stationary line and 2D infrared cameras for non-contact temperature measurement. The 16bit analog/digital converter used enables a maximum pixel rate of 10 MHz. The electronics are based on a System Of Programmable Chip (SOPC) solution using a PLD with an embedded processor. The ability to reprogram the PLD allows an inexpensive adaptation to different sensor types and various industrial applications. The embedded processor executes the signal processing, including the necessary signal corrections. In addition, the embedded processor controls and monitors the camera head, monitors the operation of the chopper/shutter motor and internal temperature sensors, and can be used to control a number of functions such as triggering or frame rate. The PC communicates with the micro-controller via an asynchronous interface. The other essential components of the digital signal-processing unit include a serializer, a flash memory and an SRAM. The new 16bit camera electronics have been incorporated into the following 2D infrared cameras PYROVIEW 256 with a pyroelectric array (256 x 128 pixel) PYROVIEW 320 with a microbolometer array (320 x 240 pixel) The paper will describe technical properties and typical applications in industrial applications for both devices as well as the advantages and disadvantages of pyroelectric vs. microbolometer arrays. In addition, since the newly developed 16bit camera electronics also provide the basis for faster line cameras (PYROLINE with pyroelectric arrays of 128 x 1 and 256 x 1 and an InGaAs line array with 256 x 1), selected applications of these cameras will also be discussed.

Paper Details

Date Published: 1 April 2003
PDF: 10 pages
Proc. SPIE 5073, Thermosense XXV, (1 April 2003); doi: 10.1117/12.485875
Show Author Affiliations
Peter Droegmoeller, MIKRON Infrared Inc. (United States)
Helmut Budzier, DIAS Angewandte Sensorik GmbH (Germany)
Technische Univ. Dresden (Germany)
Guenter Hofmann, DIAS Angewandte Sensorik GmbH (Germany)
Volker Krause, Technische Univ. Dresden (Germany)
Thomas Reichardt, DIAS Angewandte Sensorik GmbH (Germany)
Birgit Vollheim, Technische Univ. Dresden (Germany)
Jens Vollheim, DIAS Angewandte Sensorik GmbH (Germany)
Gerald Gerlach, Technische Univ. Dresden (Germany)

Published in SPIE Proceedings Vol. 5073:
Thermosense XXV
K. Elliott Cramer; Xavier P. Maldague, Editor(s)

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