AirData Vector Analysis Firmware (AD40)
Recording a constant wind speed and direction can be done accurately by almost any data logging system. However, accurate recording while the wind is varying in speed or direction, or both, within the reporting period of the system, is far more difficult. It can also be vital, in cases of airborne pollution.
As an example, using the standard scalar values, half a minute of wind from the East and half a minute from the North would be reported as a wind direction of North-East. However, if the Easterly wind blows at a speed of 10 knots, the effect of Northerly gusts at 30 knots would be to blow airborne particles more North than East.
Environdata’s AirData firmware resolves the difficulty of accurate measurement by vector analysis, or calculating the net effect of wind speed and direction. The AirData firmware also records peak wind gust and in conjunction with the ST30 Sigma Theta firmware, can also determine particle dispersion.