vane anemometer การใช้

The earliest rotating vane anemometers, such as the EDRA4, was constructed in hardwood cases.
An odometer driven by a vane anemometer on the nose determined when the target area had been reached, accurately enough for area bombing.
A " vane anemometer " thus combines a propeller and a tail on the same axis to obtain accurate and precise wind speed and direction measurements from the same instrument.
The lack of moving parts makes them appropriate for long-term use in exposed automated weather stations and weather buoys where the accuracy and reliability of traditional cup-and-vane anemometers are adversely affected by salty air or dust.
During the late 1980s, the company introduced digital readout versions of their popular 100mm rotating vane products with the portable DVA30 and DVA30VT, as well as smaller, lower cost, patented, hand-held rotating vane anemometers ( model LCA6000 ).