一、引言本文叙述一种3～5μm波段的便携式热象仪,它使用了一种最近研制的、热电致冷的SPRITE探测器。该热象仪完全装在一个壳体内,由内装的4节锂硫电池供电。二、设计约束条件 1.多种用途热象仪的视场取决于其用途,典型的视场是在对角线上为3°～50°。此外,还可以要求视场可变以至变焦。显然,对每一种可能的应用都设计一种新的扫描器是不经济的。因此,我们需要一种多用途的扫描器, I. INTRODUCTION This article describes a portable thermal imager in the 3 to 5 μm band that uses a recently developed, thermoelectric cooled SPRITE detector. The thermal imager is completely housed in a single housing powered by a built-in 4-cell lithium-sulfur battery. Second, the design constraints A variety of uses The thermal imager field of view depends on its use, the typical field of view is in the diagonal of 3 ° ~ 50 °. In addition, you can require variable field of view and zoom. Obviously, designing a new scanner for every possible application is uneconomical. Therefore, we need a multi-purpose scanner,