Detector Test Bed
Abstract
A detector test bed has been designed, fabricated and tested. Some portions of an early model of the HHTV (AN/PAS-7) were incorporated into the design. The goal of the design was to obtain a test bed for the evaluation of thermoelectrically cooled 3 to 5 micrometers PbSeTe photovoltaic detectors. Optics, scanner and some electronics were used from the GFE HHV. All other electrical and mechanical features were designed and developed on the program. In the absence of fully developed detectors, the preamplifiers were designed to interface with a PV detector whose parameters and characteristics were based upon theoretical values. The system is designed to furnish a non-interlaced parallel scan for detector arrays up to 48 elements and element sizes representative of the state of the art. Space was kept available in the opto- mechanical design to allow incorporation of a 2:1 interlace capability at a later date. A forced air cooling concept was furnished to handle the expected cooler power input to the detector (typically 25 watts). A water cooled detector mount was also designed but not fabricated. Test points for individual channels and other special system features will be discussed in the body of this report. Preamplifiers could be supplied to furnish a broader test bed potential, namely, to allow testing of 3 to 5 micron TE cooled HgCdTe P.C. detectors.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 19, 1977
- Accession Number
- ADA040214