Abstract
This paper analyzes a method of equalizing the temperature-induced signal
inhomogeneity in microbolometer detector arrays, based on variations of the measurement
bias pulses. A method is proposed that uses supplementary variable preheating pulses
applied to both the sensitive and the compensating bolometers. Our numerical modelling
of this method, by comparison with the method that uses only variations of the
measurement pulses, demonstrates a fourfold increase of the temperature interval in
which the indicated signal inhomogeneity is insignificant, and this is adequate for the
microbolometer detectors to be used in rooms with no additional signal-equalization
measures.
© 2008 Optical Society of America
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