微弱光信号检测电路的设计  

DESIGN OF WEAK OPTICAL SIGNAL DETECTION CIRCUIT

作　　者：蔡翠翠[1] 王本有[1] 孟宪猛 

机构地区：[1]皖西学院信息工程学院,安徽六安237012 [2]安徽博微长安电子有限公司,安徽六安237012

出　　处：《南阳理工学院学报》2015年第6期20-22,26,共4页Journal of Nanyang Institute of Technology

基　　金：校级基金项目(0041015011)

摘　　要：针对微弱光信号检测电路的噪声问题,通过建立硅光二极管等效电路模型,分析了检测电路的特性及影响电路性能的关键因素,为电路的设计提供了理论基础。以硅光二极管为光电检测器件,设计了微弱光信号检测电路。经实验测试,检测电路可有效地对微弱光信号进行检测,并具有良好的低噪声特性。For the noise problem of weak light signal detection circuit,the equivalent circuit model is established,and the characteristics of the circuit are analyzed and the key factors affecting the circuit performance are analyzed,which provide a theoretical basis for the circuit design. A weak optical signal detection circuit is designed for the photoelectric detection device with silicon photodiode.Through experiment,the detection circuit can detect the weak signal effectively and has good low noise characteristic.

关 键 词：微弱光信号 光电检测 硅光二极管 运算放大器 

分 类 号：TN911.23[电子电信—通信与信息系统]