Abstract
Laser Doppler Velocimetry technique (LDV) isa measuring technique which has been developed since early 1980s. LDV has many advantages such as non-invasive measurement of one or all three components of velocity vector, measured dimensional vector of velocity, high accuracy, high resolution, wide measurement range ... Commercial Equipment based on LDV principle was applied to measure flow in industrial applications, in biomedical applications, etc. ... However, most of them are the specialized equipment which have high cost. In terms of technical training and education, LDV experiment is one of the basic experiments of application in high-tech optical measuring techniques, showing the skills of application of the principle of optical measurement applications in practical conditions. A model LDV system was designed and complete development within the lab for training purposes.
Highlights
Laser Doppler Velocimetry technique (LDV) isa measuring technique which has been developed since early 1980s
Laser Doppler velocimetry (LDV), known as laser Doppler anemometry (LDA) is a technique for measuring the direction and speed of fluids like air and water
The frequency of the resulting Doppler burst signal is directly proportional to the particle velocity
Summary
In many aspects of engineering, physics, medicine and life, there are needs for components that can measure velocity without violating or changing the original flow of the objects. LDV technique is a useful technique that allows us to do it. LDV technique is a technique with high accuracy and resolution capabilities thanks to the increasing development of manufacturing techniques and equipment acquisition and signal processing techniques. Most of them are the specialized equipments and high cost. In this research we tried to use the available equipment such as He-Ne laser, optical components and systems in the National Key Lab. of Digital Control & System. Engineering to set up a simple system can be applied to measurements above
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