云台激光测距系统单光子雪崩二极管探测器的精确调整  

Exact Adjustment of Single Photon Avalanche Diode Detector for theYunnan Observatory Laser Ranging System

作　　者：伏红林[1] 郑向明[1] 何妙婵[1] 张云成[1] 冯和生[1] 

机构地区：[1]中国科学院国家天文台云南天文台,云南昆明650011

出　　处：《天文研究与技术》2004年第4期307-311,共5页Astronomical Research & Technology

基　　金：云南省自然科学基金(2002A0017R)资助项目.

摘　　要：灵敏度达单光子水平的崩二极管,是目前为止可用于激光测距的最好探测器,国际上多数测距站都采用这种探测器。单光子雪崩二极管探测器的优点是灵敏度、时间响应和暗噪声等性能指标都十分优越,缺点是视场小,视场角仅53′,这对于测距是不利的。为了使用好单光子雪崩二极管探测器,充分发挥它的作用,我们建立了专用的回波调整准直光源,设计了专门的单光子雪崩二极管探测器调整架,并应用噪声计数方法对单光子雪崩二极管探测器做了非常精细的调整,使其很好地为激光测距工作服务。The avalanche diode with high sensitivity is the best available detector for SLR until now and it has been used in the most SLR stations in the world.The properies such as the sensitivity,response time and dark noise counter for the single photon avalanche diode detector are excellent,but the disadvantage for SLR is only 53″ of the field of view.In order to employ the single photon avalanche diode detector for our SLR,we set up a collimated light for the adjustment,and a two dimensions adjustable frame was designed to hold the single photon avalanche diode detector.The noise counter was used for the exact adjustment of single photon avalanche diode detector,thereby the single photon avalanche diode detector worked excellently for SLR.

关 键 词：雪崩 激光测距系统 探测器 视场 回波 灵敏度 

分 类 号：P426.636[天文地球—大气科学及气象学] P225.2