论文信息 - 8C2 - Fluid flow measurements with a laser Doppler velocimeter

8C2 - Fluid flow measurements with a laser Doppler velocimeter

The basic principles of the laser Doppler velocimeter, a new instrument for measurement of localized flow velocities in gases and liquids, are discussed in detail. Velocity measurements are made by detecting the Doppler shift in monochromatic laser light which is scattered from small contaminant particles in the fluid. A CW gas laser serves as the light source, and the Doppler shift is detected by optical heterodyne techniques. The latest fluid flow measurements obtained with the laser Doppler velocimeter are presented.

[1] Y. Yeh,et al. Localized fluid flow measurements with an He-Ne laser spectrometer , 1964 .

[2] Y. Yeh,et al. Observation of Diffusion Broadening of Rayleigh Scattered Light , 1964 .

[3] J. W. Foreman,et al. MEASUREMENT OF LOCALIZED FLOW VELOCITIES IN GASES WITH A LASER DOPPLER FLOWMETER , 1965 .

[4] J. W. Foreman,et al. Laser Doppler velocimeter for measurement of localized flow velocities in liquids , 1966 .

[5] The Feasibility of Optical Radar to Detect Clear Air Turbulence , 1966 .

[6] H. Hodara,et al. Laser wave propagation through the atmosphere , 1966 .