Linear HgCdTe Radiometer

G. Eppeldauer; L. Novak

doi:10.1117/12.960756

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20 September 1989 Linear HgCdTe Radiometer

G. Eppeldauer, L. Novak

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Proceedings Volume 1110, Imaging Infrared: Scene Simulation, Modeling, and Real Image Tracking; (1989) https://doi.org/10.1117/12.960756
Event: SPIE 1989 Technical Symposium on Aerospace Sensing, 1989, Orlando, FL, United States

Abstract

The basic modes of electrical operation of photoconductive optical radiation detectors are analyzed. The nonlinearity inherent in "voltage mode" measurements can be eliminated by using "current mode" measurements. A HgCdTe photoconductive radiometer has been designed, based on this analysis, which measures the current through a biased detector. A built-in calibrating capability in the circuits of the radiometer makes it possible to eliminate the effects of a long-term drift in the bias voltage, thereby achieving a higher precision.

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G. Eppeldauer and L. Novak "Linear HgCdTe Radiometer", Proc. SPIE 1110, Imaging Infrared: Scene Simulation, Modeling, and Real Image Tracking, (20 September 1989); https://doi.org/10.1117/12.960756

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