Computer Science – Performance
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986spie..685..108l&link_type=abstract
IN: Infrared technology XII; Proceedings of the Meeting, San Diego, CA, Aug. 19, 20, 1986 (A88-12828 02-35). Bellingham, WA, Soc
Computer Science
Performance
Design Analysis, Infrared Detectors, Infrared Imagery, Linear Arrays, Pyroelectricity, Digital Techniques, Multiplexing, Optical Equipment, Preamplifiers, Solid State Devices
Scientific paper
An account is given of the design features and performance capabilities of pyroelectric IR sensors employing 64-element linear detector arrays, germanium lenses, and a chopper for the modulation of the incoming radiation. In one of the two systems presented, the peak value of the signal is read from the detector with the chopper in 'open' position and displayed in the form of a grey-scale picture; in the second system, the difference between the signals obtained with the chopper in 'open' and 'closed' positions is determined and displayed as a grey-scaled image. The sensors may be used in a panned mode to give large-area surveillance, as well as in a staring mode to furnish image information in virtue of the motion of the target. They may also be used in an aircraft-mounted linescan mode.
Burgess D. E.
Liddicoat T. J.
Manning P. A.
Mansi M. V.
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