Abstract
Abstract The pyroelectric radiant energy sensor working as a total energy detector of a radiant pulse is described. Tetragonal ceramic composition from the PLZT (lead lanthanum zirconate titanate) system is utilized as the sensing material. From among a few examined compositions the one possessing the best properties is chosen. The thermal, electrical and dielectric parameters, as well as pyroelectric coefficient of the examined compositions, are shown and compared with some parameters of other materials commonly utilized for pyroelectric sensors. Correct measurement occurs when the proper ratio of pulse duration to time of thermal disturbance propagation into the body of sensor material takes place. A novel material for the absorbing radiation facing electrode is applied.
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