A wind vane is an instrument that measures wind direction while anemometer measures wind speed. The illustration shown in the left side is a combination of wind vane and anemometer. This type of instrument are commonly installed on the ship.
PRINCIPLES OF WIND VANE AND ANEMOMETER
To determine wind direction, a wind vane spins and points in the direction from which the wind is coming and generally has two parts, or ends: one that is usually shaped like an arrow and turns into the wind and one end that is wider so that it catches the breeze.
The measuring principle of anemometer is simple: the stronger the wind blows, the faster the half-open plastic cups turn. The speed of the cross rotation determines the wind speed. The cup anemometer records the number of rotations per minute and thus the wind speed very accurately.
Information obtain by wind vane and anemometer are converted and can be read directly form ship’s bridge.
HOW THE DATA WAS CONVERTED
LOCATION ON THE VESSEL
HOW TO READ THE WIND VANE/ANEMOMETER DISPLAY
Information generated by wind vane and anemometer are converted and can be read directly form ship’s bridge. Through advance technology, wind speed and direction can be seen directly through a display unit in the ship’s bridge and no need for manual calculation.
