| 用超声衍射效应实现位移测量 |
| |
| 引用本文： | 赵洋. 用超声衍射效应实现位移测量[J]. 光学技术, 1998, 0(1) |
| |
| 作者姓名： | 赵洋 |
| |
| 作者单位： | 清华大学精密测试技术与仪器国家重点实验室 |
| |
| 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。
|
| 关 键 词： | 声光衍射，位移测量，外差探测 |
A Novel Principle of Measuring Displacement Using Acoustic Optical Modulation |
| |
| Abstract: | : 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. |
| |
| Keywords: | : acoustic optical diffraction displacement measurement heterodyne detecting |
| 本文献已被 CNKI 等数据库收录！ |
