How to measure air volume with anemomete

How to measure air volume with anemometer Rotary anemometer: Also known as propeller anemometer, it consists of a three-blade or four-blade propeller to form a sensing part, which is installed at the front end of the wind vane to make it align with the direction of the wind at any time. Differential pressure anemometer: It uses the difference between the total pressure of the wind and the static pressure to measure the wind speed. Calculated by the formula, the wind speed of the measured point can be obtained. Hot wire anemometer: It is a kind of speed measuring instrument that converts the flow velocity signal into an electrical signal. When the temperature changes, the resistance of the hot wire changes, so the voltage at both ends changes, thereby measuring the flow velocity.