Laser Doppler Velocimeter

Laser Doppler Velocimeter

Blog Article

A Laser Doppler Velocimeter (LDV) is an advanced instrument used to measure the velocity of particles in a fluid flow. It operates on the principle of the Doppler effect, where the frequency of light scattered by particles moving in the fluid is shifted relative to the source. The LDV directs a laser beam at the fluid, and when particles reflect the light, the frequency shift is used to calculate their velocity. This non-intrusive method provides precise, real-time velocity measurements without disturbing the fluid flow. LDVs are widely used in research and industrial applications, such as fluid dynamics studies, aerodynamics, and environmental monitoring. They offer high spatial and temporal resolution, allowing for detailed analysis of complex flows, including turbulent and low-speed flows. Due to their accuracy and versatility, LDVs are essential tools in both laboratory experiments and field measurements in fields like engineering, physics, and environmental science.