The necessity of dynamic thermal field generation for submission on a tested system optical entrance arises for measurement of thermal imaging sensor characteristics in laboratory conditions, and also for complex bench tests of onboard electrooptical systems with the thermal imaging channel. Use of physical models of temperature contrast distribution of real phonotarget environment allows to reduce considerably volume of thermal imaging equipment tests in full-scaled conditions and to win essential economic benefit. The physical models of thermal contrasts on phonotarget environment objects is named usually as thermal simulators in creation and scaled-down test practice of air thermal imaging systems. The analysis has shown that there are used most often simulators with doublegrade thermal test images as the shaped target rod consisting of strips, warmed up to necessary temperature. The target rod lacks are small accuracy of stroke temperature maintenance and wide temperature scatter on stroke surfaces. Other simulator scheme is used also, at which the reflecting coverings of the necessary form are put on a transparent substrate placed in mouth of an absolutely black body model. For the given construction there are restrictions on overall dimensions the target rod. The mobile target is simulated by a relocatable thermal point initiated by laser pulses with recurrence frequency amount some of tens hertz.
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