Dicke, empfindliche pyroelektrische detektoren aus triglyzinsulfat

Abstract

The detectors are made of crystals, of various thicknesses, whose irradiated area has evaporated onto it an electrode structure. In comparing thin and thick detectors, there is an essential advantage in easier production of the thick types. Signal voltage and responsivity analysis has been carried out using the subdivisions of area method of Maxwell with regard to the anisotropy of the dielectric constant. These parameters vary inversely with the square root of the chopper frequency f, when a sufficiently small electrode structure and sufficient anisotropy of the dielectric constant is used. The theoretical analysis agrees well with the experimental results. Examination of the crystals (by the use of water etching technics) showed that generation of appropriate domains is possible. In comparing thick and thin detectors, optimally designed, it has been found that at f = 1 kHz, the responsivity for the thick is about 1 6 of the thin type.