Laser Doppler Anemometry (LDA), also known as Laser Doppler Velocimetry (LDV), is an optical technique ideal for non-intrusive 1D, 2D and 3D point measurement of velocity and turbulence distribution in both free flows and internal flows.

Science and industry apply our Laser Doppler Anemometry systems to gain a clearer understanding of fluid mechanics. The measurement results are important steps in fine-tuning product designs to improve aerodynamic efficiency, quality and safety.


  • Non intrusive.
  • No calibration required.
  • Velocity range 0 to supersonic.
  • One, two or three velocity components simultaneously.
  • Measurement distance from centimeters to meters.
  • Flow reversals can be measured.
  • High spatial and temporal resolution.
  • Instantaneous and time averaged.

Car Model Aerodynamics testing LDA measurement

Car Model LDA measurement

LDA application for Helicopter blade

LDA application for ship propeller