Grant G R, Orloff K L
Appl Opt. 1973 Dec 1;12(12):2913-6. doi: 10.1364/AO.12.002913.
A laser Doppler velocimeter has been developed that uses two of the colors emitted from an argon-ion laser for the simultaneous measurement of orthogonal velocities. Designed for use in a 2.13-m by 3.05-m wind tunnel, it is capable of traversing its focal volume across spatially unstable flows at scan speeds of up to 1.5 m/sec. Its optical layout and principles of operation are discussed, and the data from a typical traversal of a trailing wing-tip vortex are presented.
已研发出一种激光多普勒测速仪，它利用氩离子激光器发出的两种颜色的光来同时测量正交速度。该测速仪设计用于2.13米×3.05米的风洞，能够以高达1.5米/秒的扫描速度在空间不稳定流中移动其焦点体积。文中讨论了其光学布局和工作原理，并给出了典型的尾翼尖涡旋遍历数据。
