Low-speed airflow calibrators for anemometers

For calibration of air flow sensors and anemometers a method of movable cart system in undisturbed air can by used. The basic part is a rail system on which is placed a cart with attached probe or sensor. The velocity is derived from a motion of air by inclinometer sensor or tachometer sensor placed on a motor powered by a cart.

Measured values:

• temperature, atmospheric pressure, air humidity
• density of air
• cart velocity