影响消光比测试精度的主要因素分析  

Analysing about main factors which influence on precision of testing extinction ratio

作　　者：张庆生[1] 沙定国[1] 

机构地区：[1]北京理工大学光电工程系,北京100081

出　　处：《光学技术》2002年第2期141-142,共2页Optical Technique

摘　　要：介绍了脉冲激光测距机消光比测试系统的功能和结构。对影响脉冲激光测距机消光比测试精度的主要因素逐一进行了分析。结果表明 ,用消光比测试方法考核验收脉冲激光测距机的最大测程和整机测距灵敏度 ,替代现行的在野外对特定目标的实际测距考核和验收 。Function and configuration of extinction ratio testing system of pulse laser range finder are described. In allusion to the testing system's configuration composing, the main factors which influence on precision of testing extinction ratio of pulse laser range finder are analyzed individually. The result indicates: substituting checking and accepting the maximum measuring range and the total measuring sensitivity of pulse laser range finder by means of testing extinction ratio for checking and accepting the real range finding of specific targets in the field nowadays, the influence of meteorologic difference on measuring precision and the limitation of the topographic conditions to measurement can be efficiently overcome.

关 键 词：消光比 衰减器 时序增益 漫反射 测试精度 脉冲激光测距机 

分 类 号：TH822[机械工程—仪器科学与技术] TH744.5[机械工程—精密仪器及机械]