Anemometry is about measuring velocities and flow dynamics in air. Anemometry is used for e.g. meteorological measurements and testing wind turbines. Other than that, anemometry is also important for indoor climate inspections, emission measurements, regulation and fine tuning of ventilation installations, etc. Furthermore, anemometry is sometimes used when it is necessary to determine flow dynamics in air exchangers, e.g. for cooling computers as well as drying and cooling processes.
The anemometry laboratory can with traceability in Laser Doppler Velocimetry (LDV), also referred to as Laser Doppler Anemometry (LDA), and by using pitot tubes and vane anemometers measure air velocity of up to 28 m/s. The measurements are performed in a wind tunnel at high velocities and towing tank at low velocities.

Through the years, the laboratory has participated in numerous international comparisons. Among others, one was a part of a EURAMET-project with 10 participating European national anemometry metrology laboratories with air velocities between 0.2 and 28 m/s.

LDV/LDA is also used by the laboratory for special tests and investigations in wind tunnel. This is often done in conjunction with CFD (Computational Fluid Dynamics) simulations. These rather complex investigations can be used for research and development purposes, where the LDV/LDA measurements at selected areas can provide much information regarding the uncertainty in the simulations. Click here for more information.

As is the case for the other Danish metrology laboratories, the anemometry laboratory is accredited by DANAK.


Søren Haack

Teknologisk Institut
Kongsvang Allé 29
DK. 8000 Århus C.
Phone: +45 72 20 23 38