摘要
本文叙述了用声光调制器实现位移测量的原理。入射光束与声光调制器间的相对运动引起的多普勒频移被反映光衍射的频移中去,通过测量该多普勒频移,测量出声光调制器的位移的大小,文中给出了实验结果。
: In this paper a novel principle of measuring displacement using the effecting of acoustic optical diffraction is proposed. The related movement between the acoustic optical modulator and the incident laser beam will cause an extra Doppler frequency shift in the diffraction beam. Through detecting this extra frequency shift, the displacement of the movement is measured. Also in the paper, the experiment result is shown.
出处
《光学技术》
CAS
CSCD
1998年第1期13-14,83,共3页
Optical Technique
基金
国家自然科学基金
关键词
声光衍射
位移测量
外差探测
声光调制器
: acoustic optical diffraction, displacement measurement, heterodyne detecting