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Proceedings Paper

Infrared line cameras based on linear arrays for industrial temperature measurement
Author(s): Peter Drogmoeller; Guenter Hofmann; Helmut Budzier; Thomas Reichardt; Manfred Zimmerhackl
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Paper Abstract

The PYROLINE/ MikroLine cameras provide continuous, non-contact measurement of linear temperature distributions. Operation in conjunction with the IR_LINE software provides data recording, real-time graphical analysis, process integration and camera-control capabilities. One system is based on pyroelectric line sensors with either 128 or 256 elements, operating at frame rates of 128 and 544 Hz respectively. Temperatures between 0 and 1300DGRC are measurable in four distinct spectral ranges; 8-14micrometers for low temperatures, 3-5micrometers for medium temperatures, 4.8-5.2micrometers for glass-temperature applications and 1.4-1.8micrometers for high temperatures. A newly developed IR-line camera (HRP 250) based upon a thermoelectrically cooled, 160-element, PbSe detector array operating in the 3 - 5 micrometers spectral range permits the thermal gradients of fast moving targets to be measured in the range 50 - 180 degree(s)C at a maximum frequency of 18kHz. This special system was used to measure temperature distributions on rotating tires at velocities of more than 300 km/h (190 mph). A modified version of this device was used for real-time measurement of disk-brake rotors under load. Another line camera consisting a 256 element InGaAs array was developed for the spectral range of 1.4 - 1.8 micrometers to detect impurities of polypropylene and polyethylene in raw cotton at frequencies of 2.5 - 5 kHz.

Paper Details

Date Published: 15 March 2002
PDF: 11 pages
Proc. SPIE 4710, Thermosense XXIV, (15 March 2002); doi: 10.1117/12.459557
Show Author Affiliations
Peter Drogmoeller, Mikron Instrument Co., Inc. (United States)
Guenter Hofmann, DIAS Angewandte Sensorik GmbH (Germany)
Helmut Budzier, DIAS Angewandte Sensorik GmbH and Dresden Univ. of Technology (Germany)
Thomas Reichardt, DIAS Angewandte Sensorik GmbH (Germany)
Manfred Zimmerhackl, DIAS Angewandte Sensorik GmbH (Germany)


Published in SPIE Proceedings Vol. 4710:
Thermosense XXIV
Xavier P. Maldague; Andres E. Rozlosnik, Editor(s)

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