基于声光效应的激光束偏转控制方法研究  

Research on Control Methods of the Laser Beam Deflection Based on Acousto-optic Effect

作　　者：王辉林[1] 陈志敏[1] 马瑞亭[1] 蔡开云[1] 

机构地区：[1]山东理工大学机械工程学院,山东淄博255049

出　　处：《压电与声光》2010年第6期939-941,共3页Piezoelectrics & Acoustooptics

摘　　要：给出了基于USB总线的声光效应系统框图,介绍了声光偏转和调制的原理,通过超声波频率的改变来控制激光光束的方向。在布喇格衍射下,测量声光偏转量,计算超声波声速。实验证明,通过改变超声频率可实现对激光光束方向的控制。利用声光效应制成的声光器件在实际中有着广泛应用。The system chart of the acousto-optic effect based on USB bus was given,and the principle of the acousto-optic deflection and modulation was introduced.The direction of the laser was controlled by changing the ultrasonic frequency.Acoustic-optic deflection was measured under acousto-optic Bragg diffraction efficiency to calculate ultrasonic speed.Experiment showed control the direction of laser could be controlled by changing ultrasonic frequency.The acousto-optic devices made by acousto-optic effect had a broad foreground in applications.

关 键 词：声光效应 布喇格衍射 超声波声速 偏转角 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]