Dines anemometer

Dines anemometer

[¦dīnz an·ə′mäm·əd·ər]
(engineering)
A pressure-tube anemometer in which the pressure head on a weather vane is kept facing into the wind, and the suction head, near the bearing which supports the vane, develops a suction independent of wind direction; the pressure difference between the heads is proportional to the square of the wind speed and is measured by a float manometer with a linear wind scale.