Reusable common module Dewar for infrared array testing

Fergus E. Moore; Elmer L. Moseley; Randy B. Washburn; Don A. Larson

doi:10.1117/12.138990

5 January 1993 Reusable common module Dewar for infrared array testing

Fergus E. Moore, Elmer L. Moseley, Randy B. Washburn, Don A. Larson

Proceedings Volume 1762, Infrared Technology XVIII; (1993) https://doi.org/10.1117/12.138990
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

Testing of scanned linear infrared detector arrays, particularly in a developmental environment, can be facilitated through the use of Common Module FLIR (forward-looking infrared) equipment. The modular nature of these FLIRs allows rapid exchange of detector/Dewar modules, however, the cost of Common Module Dewars can become excessive if many arrays are tested. It is desirable to utilize a reusable Dewar, but the problem of quick and reliable multiple electrical connections to the array must be solved. We have designed and fabricated a reusable Dewar, which maintains the Common Module detector/Dewar envelope with a minor exception, in which the arrays can be quickly mounted and dismounted with little effort and limited expertise. In the described version, 148 electrical connections are automatically completed when the array is fastened in place on the cryogenic thermal sink. Interchangeable radiation shielding and cold filtering is also easily accomplished in the same operation. After evacuation through a valve, the Dewar mounts quickly in the Common Module FLIR for laboratory and field testing with standard Common Module cryogenic coolers. The interconnection is also adaptable to integral cooler Dewars where the detectors are mounted directly on the cryogenic generator.

Citation Download Citation

Fergus E. Moore, Elmer L. Moseley, Randy B. Washburn, and Don A. Larson "Reusable common module Dewar for infrared array testing", Proc. SPIE 1762, Infrared Technology XVIII, (5 January 1993); https://doi.org/10.1117/12.138990

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available