SIMULTANEOUS MULTIVELOCITY COMPONENT LASER DOPPLER VELOCIMETRY USING ONE DIGITAL FREQUENCY PROCESSOR

被引：3
|
作者：
JOHNSON, DA
机构：
[1] NASA Ames Research Center, Moffett Field
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 1990年 / 61卷 / 07期
关键词：
D O I：
10.1063/1.1141408
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Digital frequency processing used in conjunction with optical frquency shifting is an ideal way to achieve simultaneous multivelocity component measurements in laser Doppler velocimetry. This becomes obvious once realized that multivelocity component information at different frequency offsets can be obtained directly from the composite frequency spectrum of a single-channel digital frequency processor. The approach has numerous advantages over the very popular approach of using a different laser wavelength, photodetector, and signal processor for each velocity component.
引用
收藏
页码：1989 / 1990
页数：2
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