Use Of Pyroelectric Detectors In Horizon Sensors

Pyroelectric detectors appear to be an attractive alternative to the conventional immersed bolometers which are used in horizon sensors for spinning satellites. The noise of the detector decreases with frequency thereby offering very good signal-to-noise ratio for a fast-spinning satellite. In addit...

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Published in:Optical Engineering 1979-12, Vol.18 (6), p.186634-186634
Main Authors: Jain, Y. K, Kalakrishnan, B
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description Pyroelectric detectors appear to be an attractive alternative to the conventional immersed bolometers which are used in horizon sensors for spinning satellites. The noise of the detector decreases with frequency thereby offering very good signal-to-noise ratio for a fast-spinning satellite. In addition, the increase of responsivity at low frequencies again provides better signal-to-noise ratio than could be achieved with immersed thermistor bolometers:
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