一种高精度非致冷红外焦平面偏置电压系统的设计  

A Design of High Precision Voltage Controlling System for Uncooled Infrared Focal Plane

作　　者：舒亚硕[1] 袁凯[1] 刘子骥[1] 雷延钊[1] 蒋亚东[1] 

机构地区：[1]电子科技大学光电信息学院电子薄膜与集成器件国家重点实验室,四川成都610054

出　　处：《红外技术》2010年第7期373-376,共4页Infrared Technology

基　　金：国家自然科学基金资助项目;编号:60806021

摘　　要：非致冷红外焦平面偏置电压的稳定性直接决定了其应用系统的性能。分析了偏置电压控制原理,在此理论基础上,设计了针对非致冷红外焦平面的高精度微型偏置电压控制系统,该系统利用单片机AT89c2051,可调电位器ADN2850,运放AD8606,A/D转化器TLV2544一起组成一个系统完成对电压进行闭环自动控制,实现了电压高稳定度的性能指标。该系统还具备高精度、小型化、低噪声、快速稳定等优点,为提高红外焦平面系统电压稳定性、迅速达到稳定工作状态提供了有益的参考。Uncooled infrared focal plane bias voltage directly determines the stability of the performance of its applications.Analysis of the bias voltage control principle,in this based on the theory designed for uncooled infrared focal plane of high-precision micro-bias voltage control system.The system uses ADN2850;TLV2544;AT89c2051 and AD8606 Together to form a closed loop system to complete the automatic control of voltage to achieve high stability voltage performance index.The system also has high accuracy,small size,low noise,fast and stable,to improve system voltage stability of infrared focal plane arrays and quickly reach a steady state of work provides a useful reference.

关 键 词：电压控制 ADN2850 TLV2544 AT89C2051 AD8606 非致冷红外焦平面 

分 类 号：TN216[电子电信—物理电子学]