LONG-RANGE, NONCOHERENT LASER DOPPLER-VELOCIMETER

被引：19

作者：

BLOOM, SH

KREMER, R

SEARCY, PA

RIVERS, M

MENDERS, J

KOREVAAR, E

机构：

[1] Thermo Electron Technologies Corporation, San Diego, CA, 92121-2305

来源：

OPTICS LETTERS | 1991年 / 16卷 / 22期

关键词：

D O I：

10.1364/OL.16.001794

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An experimental demonstration of a long-range, noncoherent laser Doppler velocimeter (LDV) is presented. The LDV detects incoming Doppler-shifted signal photons by using the sharp spectral absorption features in atomic or molecular vapors. The edge of the absorption feature is used to convert changes in frequency to large changes in transmission. Preliminary measurements of wind velocity using seeded aerosols showed that the LDV results agreed with mechanical anemometer measurements to within the accuracy of the LDV measurements. With optimization the LDV will provide accurate range-resolved and vibration-tolerant wind-speed measurements at large distances.

引用

页码：1794 / 1796

页数：3

共 11 条

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