大口径线性连续衰减器技术的研究  

Research on large caliber linear continuous attenuator

作　　者：林家明[1] 张庆生[1] 周桃庚[1] 沙定国[1] 苏大图[1] 

机构地区：[1]北京理工大学信息科学技术学院光电工程系,北京100081

出　　处：《光学技术》2003年第2期254-256,共3页Optical Technique

摘　　要：讨论了用于标定激光测距机测程所必须用到的连续衰减器的设计、制作与标定中的几个关键技术问题。研究了大口径线性连续衰减器为实现0 2～10dB线性连续可变的透过率控制技术。分析了连续衰减值的正交多项式曲面拟和差值算法。给出了实用化的标定结果。The key technology that the attenuators of the continuous values is degined, manufactured and calibrated to calibrate the range of laser range finder is discussed. The transmittance control technology of designing the continuous attenuator with a large caliber and 02～10dB attenuation continuously is researched, and the means of orthogonal polynomial surface fitting for continuous attenuation values are analysed. The utility calibrating results are also presented.

关 键 词：大口径线性连续衰减器 激光测距机 正交多项式曲面拟合 

分 类 号：TH761.2[机械工程—仪器科学与技术]