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Advantages • No moving parts, solid state• One instrument for wind speed andwind direction• Accurate, reliable and excellent performance • Robust not vulnerable sensor • All-weather performance • Minimum of maintenance • Easy to install • Low cost technology New and unique concept for measuring both wind speed and wind direction based on micro systems technology. Mierij Meteo

solid state wind sensor - 54729 SOLID STATE WINDSENSOR MW 22

Measurement Principle The Solid State Wind sensor uses a temperature sensitive element to measure wind direction and wind speed. The sensing element consists of a specially designed ceramic plate which incorpo- rates an IC. The IC temperature is maintained at a constant value above ambient temperature. Two pairs of thermocouples are mounted on the IC at right angles. If there is an airflow, the thermocouples measure the temperature difference over the IC surface. This is a measure of the wind speed and direction. Guide discs ensure that wind passes the sensor in the right way. Mathematical processing by the microprocessor and signal conditioner results in a RS422 signal for wind speed and wind direction according to the NMEA 0183 standard. The wind sensor has no moving parts, which warranties a long lifespan with only a minimum of maintenance.
2222 Mierij Meteo •Weltevreden 4c, 3731 AL De Bilt •Postbus 97, 3730 AB De Bilt Tel.: +31 (0)30 2200064 •Fax.: +31 (0)30 2204264 •Internet: www.mierijmeteo.nl •E-mail: info@mierijmeteo.nl