1 July 1992 Radiometric calibration system for IR cameras
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Abstract
This paper describes an automated calibration system that we developed to calibrate JR flight cameras for a series of sub-orbital experiments. Short schedules as well as concern over cryo-cooler lifetimes dictated a totally automated calibration system that obtained as much data as possible over a short period of time. The data must be as complete as possible since the cameras are not recovered. For this reason the system calibrates each pixel individually. The output of the calibration is a set of calibration coefficients which convert the gray level output of the camera into physical units of radiance (Watts/cm2-str-.tm). We have calibrated Hughes 256x256 pixels PtSi cameras and 128x128 pixels HgCd cameras and Amber 128x128 pixels JnSb cameras. These cameras put out 8 bit digital data and sync signal at a given camera setting. This paper describes the calibration acquisition system and shows the results for the Hughes 256x256 PtSi camera.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hye-Sook Park, Douglas W. Dobie, Theodore E. Ferretta, Dennis B. Hakala, Matt P. Nolan, Eric L. Parker, "Radiometric calibration system for IR cameras", Proc. SPIE 1686, Test and Evaluation of IR Detectors and Arrays II, (1 July 1992); doi: 10.1117/12.60522; https://doi.org/10.1117/12.60522
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