Linear HgCdTe Radiometer

G. Eppeldauer; L. Novak

doi:10.1117/12.960756

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.

Citation Download Citation

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

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