铁电型非制冷红外焦平面探测器的调制器设计

Chopper Design for Ferroelectric Un-cooled FPA

从铁电型非制冷红外焦平面探测器逐行读出的工作机理和阿基米德螺旋线的定义出发,导出了多调制周期调制器叶片形状的设计公式,给出了调制器与探测器位置关系的设计实例,解决了调制器设计的核心问题。

A new kind of structure designing of multi-period chopper used in ferroelectric UFPA （Un-cooled Focal Plane Arrays） IR imaging system was presented. The design formulas for vane figure of multi-period chopper was derived based on the definition of Archimedes spiral and the sign process requirement of ferroelectric UFPA. An example to explain the relation between chopper and detector was demonstrated, too. By now, the key problem to chopper design has been solved in this paper.