Operating Temperature Analysis for Microbolometric Focal Plane Array

Abstract

The operating temperature is numerically calculated and theoretically processed for the microbolometer thermal sensor array with pulse voltage bias. According to the physically thermal model and equation of heat balance for a microbolometer under a list of biasing voltage pulses, the operating temperature equation is theoretically derived for numerical calculations. Above these exact numerical calculations, the operating temperature expressed in theory is proposed for the thermal sensor in stable thermal cycles with pulse voltage bias. The theoretical expression is useful to predict the accurate infrared sensitivity of the microbolometric sensor in normal operating state, which has been proved to be exact and usable, and is feasible for being applied to the infrared sensing performance promotions of microbolometric array.