Common Module Detector Dewar Dynamic Tester

N. Butler; A. Carson; A. J. Verrilli

doi:10.1117/12.960699

25 September 1989 Common Module Detector Dewar Dynamic Tester

N. Butler, A. Carson, A. J. Verrilli

Proceedings Volume 1108, Test and Evaluation of Infrared Detectors and Arrays; (1989) https://doi.org/10.1117/12.960699
Event: SPIE 1989 Technical Symposium on Aerospace Sensing, 1989, Orlando, FL, United States

Abstract

The design and construction of a system to test common module detector dewar assemblies with a simulated cooler vibration is described. Pseudo-random vibration levels up to 10 g RMS at frequencies up to 20 kHz can be applied to the unit under test, with control accuracy better than 1 dB. A test time of about 3 seconds per element is routinely obtained for arrays up to 180 elements. The system is software configurable to address a variety of testing requirements; vibration levels and frequencies and noise analysis frequencies and bandwidths are variable. Unique features of this system include a true three axis vibration control system which is integrated into the main system controller, and a custom built 180 channel preamplifier/multiplexer array, and a small size and quiet operation for production area compatibility. The system is compatible with a family of plug in preamplifier cards, further enhancing its adaptability. The system has been in continual use for several years and has proven to be versatile, adaptable, and reliable.

Citation Download Citation

N. Butler, A. Carson, and A. J. Verrilli "Common Module Detector Dewar Dynamic Tester", Proc. SPIE 1108, Test and Evaluation of Infrared Detectors and Arrays, (25 September 1989); https://doi.org/10.1117/12.960699

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