近红外探测器数据采集系统的设计  

Design of data acquisition system for near infrared detector

作　　者：黄常钊[1] 张树群[1] 姚立军[1] 丁佳[1] 黄泳[1] 

机构地区：[1]暨南大学光电信息与传感技术广东普通高校重点实验室,广东广州510632

出　　处：《应用光学》2011年第1期138-143,共6页Journal of Applied Optics

基　　金：广东省自然科学基金(32208005)

摘　　要：根据高精度近红外数据采集系统的要求,设计了3套数据采集系统。前两套数据采集系统是针对不同的近红外探测器的特性而设计的,能满足近红外数据采集的高精度要求。最后一套数据采集系统采用直接电流模数转换的方法,不仅简化了采集系统的电路结构,也可以为近红外光谱测量系统的设计提供参考。为近红外探测器数据采集系统提供了3种不同的设计方案,并搭建了模块进行了测试分析,在实践中得出了各种电路的优缺点和应用环境,对工程人员具有一定的参考价值。Based on the requirement of high-precision near-infrared data acquisition system and the characteristics of infrared detectors,two different types of data acquisition systems are designed,which can achieve the expected accuracy.In addition,a direct current analog-to-digital acquisition system is designed,which simplifies the circuit structure of the acquisition system and provides a reference for the design of near-infrared spectrum measurement system.Three different designs of data acquisition system for near-infrared detector are provided,and relevant analysis circuit is implemented to analyze each circuit＇s feature and its application environment.

关 键 词：近红外光谱 高精度数据采集 ADS1271 LTC2440 DDC112 

分 类 号：TN215[电子电信—物理电子学]