Depending on the model, the actual measurement takes place then via a Hall sensor which registers the individual revolutions, or via an optical sensor, which scans a reflex mark attached to the impeller. In contrast to the hot wire anemometer, this wind meter has a wheel, which is driven by the wind. Other anemometers used to measure directional flows are the vane anemometers. The measurement with a thermal anemometer is often a measurement for directed flows. Thermal anemometers are often used to measure the draft flow or to measure flow velocities in ducts. In thermal anemometers, the temperature is often also measured by means of a separate sensor element. By measuring the electrical variables of current and voltage, the resistance at a corresponding flow velocity can be calculated. If a wind flows past the sensor element of the anemometer, this resistor cools down. In case of a thermal anemometer, also referred to as a hot wire anemometer, an electrical resistor with a defined current and a constant voltage is heated. When selecting an anemometer, the design and the measuring principle are primarily in focus.įor exact measurements of small wind speeds, the thermal anemometers are often used. If this is unclear, just contact us and we’ll give you our assistance. Simply contact us.įirst of all, to make the right choice of anemometers, the application should be clarified. PCE Instruments is also happy to develop individual measurement solutions for wind monitoring for special applications. In the following text, you may find some information meant to facilitate the decision when purchasing an anemometer.

Anemometers are available in many different designs and equipment variants. An anemometer is a device, a measuring instrument for checking wind speed.

Anemometer units