摘要
针对目前的激光测距仪,参考信号和测距信号走不同的路径,元器件的不同产生了相位的误差,导致测量精度降低。为了提高测量精度,提出分时式相位激光测距仪的结构设计,分时机制测距仪一套光路和电路完成2套或3套光路和电路的功能;除测距光路外,参考信号和测量信号始终处在同一信号通路;消除了参考/测距信号光路和电路不一致、电子器件参数分散性和温变特性引起的相位误差。试验数据表明,采用分时相位激光测距,提高了测距精度和可靠性。
In current laser rangefinder,the reference and ranging signal goes in different paths,and the differences among components will lead to phase error,which result in the decrease of accuracy of measurement.In order to improve the accuracy of measurement,time-sharing type phase laser rangefinder structural design is put forward,timesharing mechanism rangefindercomplete electric circuit 2 sets or 3 sets of light path and the function of the circuit using a set of optical path.Electronic device parameter dispersion and phase error caused by temperature change characteristics.Experimental data shows that using time-sharing phase laser ranging and improve the ranging accuracy and reliability.
出处
《仪表技术与传感器》
CSCD
北大核心
2014年第5期106-110,共5页
Instrument Technique and Sensor
基金
高等学校访问学者专业发展项目(FX2012121)
中央高校基本科研业务费专项资金资助项目
关键词
相位误差
相位式
分时式机制
混频器
测量精度
phase error
phase type
time-sharing type mechanism
mixer
accuracy of measurement
