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Windtech International March April 2024 issue






The Vaisala WINDCAP ultrasonic wind sensor WS425 F/G is a premium, ice-free sensor for measuring surface wind speed and direction.

The sensor has no moving parts and it is resistant to contamination, salt, dust, and corrosion. Thus, the WS425 F/G requires no on-demand or periodic maintenance. The sensor has a heating feature with a total heating power of 150 Watt. Wind speed can be measured up to 165 knots with the sensor. The WS425 F/G uses ultrasound to determine horizontal wind speed and direction. The measurement is based on transit time, the time it takes for the ultrasound to travel from one transducer to another. The transit time is measured in both directions for each pair of the transducer heads. The wind measurements are calculated in a way that completely elimates the effects of altitude, temperature, and humidity.  The WS425 F/G is especially suitable for use in harsh, arctic conditions.
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