laser Doppler velocimeter

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laser Doppler velocimeter

[′lā·zər ′däp·lər ‚vel·ə′sim·əd·ər]

(optics)

A type of laser velocimeter used for determining the velocity of a fluid flow from the Doppler shift in the frequency of laser light scattered from particles in the fluid.

Mentioned in ?

boundary-layer flow

References in periodicals archive ?

Fujii, "Multi-point differential laser doppler velocimeter using arrayed waveguide gratings with small wavelength sensitivity," Optics Express, vol.

Interferometric dynamic measurement: techniques based on high-speed imaging or a single photodetector

The laser Doppler velocimeter was operated in the dual-beam near full backscatter mode and is composed of a 600 mW argon-Ion laser, a diffraction-grating unit to divide the light beam into two equal intensity beams and to provide frequency shift, and collimating and focusing lenses to form the control volume.