Abstract

A laser Doppler velocimeter capable of directly measuring instantaneous velocities is described. The new LDV uses a novel detection technique based on the utilization of a static slightly defocused spherical Fabry-Perot interferometer used in conjunction with a special mask for the detection of instantaneous Doppler frequency shifts. The essential characteristics of this LDV are discussed, and such a system recently developed is described. Results of turbulent flow measurements show good agreement with data obtained using hot wire anemometry.

© 1974 Optical Society of America

Laser-Doppler Velocimeter Measurements in Nonuniform Flow: Error Estimates

Dennis K. Kreid
Appl. Opt. 13(8) 1872-1881 (1974)

Airborne Laser Doppler Velocimeter

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Appl. Opt. 13(12) 2890-2898 (1974)

Laser Doppler velocimeter with a novel optical fiber probe

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Direction Sensitive Laser Doppler Velocimeter with Polarized Beams

R. Dändliker and P. D. Iten
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Directional Laser Doppler Velocimeter

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