Farmer W M, Hornkohl J O
Appl Opt. 1973 Nov 1;12(11):2636-40. doi: 10.1364/AO.12.002636.
A newly developed laser Doppler velocimeter is described. The basic optical component of the instrument is a two-dimensional ultrasonic Bragg cell. It is shown that use of this Bragg cell simplifies the optics usually required for the more conventional velocimeters, allows measurement of two-vector components of velocity, requires no adjustment of alignment mirrors, and enables both velocity component signals to be detected with a single detector. Some results from experiments using this velocimeter in an atmospheric application are described.
本文介绍了一种新研制的激光多普勒测速仪。该仪器的基本光学组件是二维超声布拉格盒。结果表明，使用这种布拉格盒简化了较为传统的测速仪通常所需的光学系统，能够测量速度的两个矢量分量，无需调整对准镜，并且能用单个探测器检测两个速度分量信号。文中还描述了在大气应用中使用该测速仪的一些实验结果。
