Geovane receives the sun’s direct radiation and measures the wind vane offset so you can correct wind direction measurements it makes. The True North wind vane offset is obtained by comparing the theoretical solar azimuth angle calculated by the embedded processing unit with the measured azimuth value read by the built-in photo sensing pixels.
The GPS module provides the location, date, and time to the internal processing unit, enabling Geovane to calculate the theoretical solar azimuth. Using the very fine sunrays that pass through the Geovane’s precision slits in combination with the internal photo-sensing pixels allows the Geovane to measure changes in the Sun’s position at a resolution below 0.006º. The integrated tilt sensor permits comparing the theoretical and measured solar azimuth angles, even if the Geovane is not perfectly leveled. The Geovane includes a high-precision laser beam emitter used to fixate its position with respect to the wind vane. The Geovane is equipped with both analog outputs and an RS485 driver for convenient interface and communication with industry standard data loggers. Internal heat and UV resistant molded plastic cup with fine slits for sunrays to pass through. Precision cut glass tube houses the Geovane, providing added protection for internal components from harsh weather conditions.