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Wind Sensors

Wind is the natural consequence of atmospheric motions arising from many sources; from large scale circulations of air around atmospheric pressure cells, to local winds such as sea-breezes that arise because of differential heating between land and water. Wind speed is measured with a three-cup anemometer and wind direction by a wind vane, both mechanical devices. An alternative to the cup and vane wind set is the ultrasonic wind speed and direction sensor which has no moving parts and is therefore almost maintenance free.

WMS301 Wind Speed and Direction

MEA's standard automatic weather stations for agricultural and environmental measurements use the WMS301 combined wind speed and direction sensor. This is a beautifully-engineered unit that is easy to remove for servicing, has long life and good performance characteristics.

Wind Speed Sensor Premium P2456

For wind energy studies, MEA uses the WindSensor P2546A three cup anemometer. This instrument has a very fine pedigree, and has proven to be absolutely reliable over tens of thousands of hours on remote hillsides. It has a strong backing in the independent literature for integrity of measurement under worst-case wind conditions.

Wind Direction sensor premium W200P

MEA wind monitoring systems use the W200P wind direction sensor from Vector Instruments. It incorporates a precision potentiometer which has the lowest possible torque consistent with long life and reliability, the small gap at north being filled with an insulating material to ensure smooth operation over the full 360�.

Wind Speed Sensor Standard 43519

For applications which require wind speed only, MEA uses the 43519 anemometer. This compact, low cost sensor is rugged and reliable.

WS425 ultrasonic wind instrument

An alternative to the mechanical cup and vane wind set is the ultrasonic wind speed and direction sensor. The instrument is almost maintenance- free, as it has no moving parts. The sensor uses ultrasound transit time measurements along three different paths to determine wind speed and direction. It has a very low starting threshold which makes it particulalrly useful for pollution studies.