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Proceedings Paper

Spectral shift of infrared LEDs and resistive sources
Author(s): M. L. Fedde; H. S. Lowry; J. H. Mansfield
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Paper Abstract

The Space Chambers at the Arnold Engineering Development Center (AEDC) are continually exploring new technologies to improve their characterization, calibration, and mission simulation testing capabilities for imaging sensors. Part of this task is to develop and integrate methods to simulate high-temperature sources (on the order of 3,000 K) while maintaining the integrity of the low radiometric background within the cryovacuum chambers. The High Temperature Source Simulator project at AEDC is exploring the use of laser diodes, LEDs, and resistive sources of varying IR wavelengths to simulate these high-temperature sources within AEDC's Space Chambers. A brief summary of previous work will be presented with a more detailed discussion of the recent cryospectral shift of the tested sources. We found that the IR LEDs spectrally shift up to about 20% from their ambient center wavelength while the resistive sources do not shift at all (as expected). Several different resistive sources as well as LEDs of varying wavelengths have been procured and will continue to be tested.

Paper Details

Date Published: 11 May 2012
PDF: 12 pages
Proc. SPIE 8356, Technologies for Synthetic Environments: Hardware-in-the-Loop XVII, 835602 (11 May 2012); doi: 10.1117/12.917485
Show Author Affiliations
M. L. Fedde, Aerospace Testing Alliance (United States)
H. S. Lowry, Aerospace Testing Alliance (United States)
J. H. Mansfield, Aerospace Testing Alliance (United States)


Published in SPIE Proceedings Vol. 8356:
Technologies for Synthetic Environments: Hardware-in-the-Loop XVII
James A. Buford; R. Lee Murrer; Gary H. Ballard, Editor(s)

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