摘要
简要介绍了一种二维定心偏转激光扫描器的工作原理和结构设计。对二维摆角的两种不同测量方式的优劣进行了比较,并详细介绍了采用光电位置传感器(PSD)实现摆角测量的系统,包括它的测量原理、光学系统构造和PSD后续信号处理电路。结果表明,所研制的二维定心激光扫描器摆角测量系统可以实现±7.5°的二维摆角和30°圆锥角的大范围扫描,其重复精度为0 05°,分辨率为0 01°。具有快速灵巧、实时性强、工作稳定、抗环境干扰能力强等优点。
The principle and structure design of a 2 DOF tip/tilt laser scanner is introduced, and two different methods to measure the 2 DOF deflection angle are compared. The aspects of the measurement system using PSD are discussed, including its basic principle, optical system and signal processing circuit. The system now can reach a side scanning range of 30° with resolution of 0.01°.
出处
《光学技术》
EI
CAS
CSCD
2003年第2期136-138,共3页
Optical Technique
关键词
二维定心激光扫描器
摆角测量系统
研制
PSD
Deflection (structures)
Laser applications
Scanning
Signal processing
Structural design
