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One- and 2-D models for the thermal behavior and voltage responsivity of four- and six-layered pyroelectric devices are examined and reported.

Research describing the formation of pyroelectric sensors from the embedding of lanthanum and calcium modified lead titanate (PCLT) in a vinylidene fluoride-trifluoroethylene copolymer (P(VDF-TrFE)) is presented. The sensors were investigated for current and voltage responsivities.

Research is presented describing the development of an array based on a 16 x 16 PVDF ceramic integrated sensor.

The potential use of ceramic compositions of barium strontium titanium oxide as pyroelectric sensor materials was investigated. To this end, the ceramic materials were fabricated in tape-cast and thin film forms. Experimental results showed that the materials possess high pyroelectric coefficients followed by low dielectric constant and low dissipation factor. The dielectric constant and loss tangent of the materials can be reduced by doping barium strontium titanium oxide with magnesium oxide, resulting in an increase in the pyroelectric figure of merit.

Pyroelectric body sensors are used in many fields and their high sensitivity in the wide spectral region allows the development and production of portable and economical thermal images. The most important mechanisms of heat losses in pyroelectric sensors are considered and their influence on the responsivity is estimated. Each of the mechanisms corresponds to certain frequency range, with predominant frequency response types.

Ferroelectric materials are distinguished by their piezoelectric and pyroelectric properties, and have been widely applied in remote thermometry and detection and measurement of nonionizing radiation. A pyroelectric detector for measuring energy fluence rates of x-ray pulses in the diagnostic energy range, is described. Detector response conformed to thermal and electrical analysis theoretical predictions.

Two-dimensional modeling of the nonstationary thermal state and voltage responsivity of elements used in solid-state pyroelectric focal plane arrays is described and discussed.