Problem: build a combined anemometer and wind vane where the pivots for both sensors are coaxial. Solution: turn an old universal motor into a step-wise potentiometer for the wind vane, and then ...

Thermal anemometers are generally the first choice for accuracy, but are inappropriate for determining airflow direction. A smoke source can be used in conjunction with the thermo-anemometer to ...

Problem: build a combined anemometer and wind vane where the pivots for both sensors are coaxial. Solution: turn an old universal motor into a step-wise potentiometer for the wind vane, and then pu… ...

Another advantage is a more accurate average of true airflow over the sample area. The 4-inch vane does not respond to local stray eddy air currents; a hot wire probe or Pitot tube may. Many times 4-6 ...