Abstract
An innovative design is considered, and the results of analysis and calculations of the characteristics of a thermal image receiver (3-15 microns), made in the electron-optical converter architecture, are presented. For the sensor-converting pyroelectric unit of the electron-optical converter, the spatial dependences of the electric field strengths and the values of the electric potentials on the spontaneous polarization of the film substance are calculated. Estimates are obtained and the characteristics of thermal-field-induced polarization of various pyroelectric films are discussed. The temperature dependences of the polarization characteristics of a number of pyroelectric films are calculated using the finite element method in the COMSOL Multiphysics software package. Possible contributions of the piezoelectric effect to the picture of the distribution of electric potentials from the thermal polarization of pyroelectric films are taken into account. Estimates are obtained for the limiting values of the main instrument characteristics of the electron-optical converter.
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