Determination of air and hydrofoil pressure coefficient by laser doppler anemometry

Laser Doppler anemometry: recent developments and future challenges

The availability of new optical and electronic components and the increasing demands on measurement accuracy have led to a continuous development of the laser Doppler measurement technique in recent years. This article reviews the developments in optical systems, signal processing, data processing and in the application of LDA systems. Particular emphasis is placed on examining how well present...

Sub-Shot-Noise laser Doppler Anemometry with Amplitude-Squeezed Light

Yong-qing Li,1 Peter Lynam,2 Min Xiao,3 and Paul J. Edwards1 1Advanced Telecommunications Research Centre, Faculty of Information Sciences and Engineering, University of Canberra, P.O. Box 1, Belconnen, ACT 2616, Australia 2Department of Physics, University College, University of NSW, ADFA, ACT 2600, Australia 3Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701 (Receive...

NASA Technical ' Mem 6 andum 100072 Laser Doppler Anemometry

On-line detection/estimation scheme in laser Doppler anemometry

Laser anemometers have become a promising technique for estimating velocities in a flow. In this paper, we study their use for onboard aircraft speed of flight estimation. More specifically, this paper addresses the problem of simultaneous detection of the arrival of aerosol particles in a laser anemometer and estimation of their velocity. A joint detection-estimation scheme is proposed. A Like...

Capillary blood cell velocity in periulcerous regions of the lower leg measured by laser Doppler anemometry.

BACKGROUND The capillary blood flow of the nailfold can be measured by means of modern non-invasive techniques like the videocapillary microscope in vivo. To quantify the capillary blood cell velocity, apart from the nailfold capillaries, we used a new technique, the so-called laser Doppler anemometry (LDA). OBJECTIVE The present study investigated how far laser Doppler fluxmetry (LDF), trans...