Definition, Purpose, and Types of Anemometer

A device that is conventional in weather stations and used in determine wind speed is called anemometer. The word “anemos” is a Greek term that means the wind and is where the anemometer came from, and use in determining the speed of the wind. Leon Battista Alberti was the one who is the first to know about anemometer in 1450, but a more straightforward type of the device which invented by Dr John Thomas Romney Robinson of Armagh Observatory in 1845. The instrument made of four semicircular cups attached on a horizontal arm and connected in a vertical shaft. A proportion of the airspeed that passed the cups in a level of direction which turn the beam at the same time which every turn counted in producing a value that is equal to the usual airspeed and is also known as a rotational anemometer.


It is easier to look at the four cups of anemometer Sydney because of the device organised by the end of the arms which the air occupies the one cup and blowing on the opposite side of the cross in the back portion of the container. The size of a hollow hemisphere consists of the graft amount of .38 on the spherical side, and there is 1.42 on the negative side of the device which makes the cup generate additional force in the new part of the container towards the air. With the use of this new force, it causes the anemometer’s axis to spin.


The vane anemometer is one of the different types of mechanical velocity anemometer and also known as a propeller anemometer or windmill. Different from another anemometer that the twisting of the axis is vertical, this device, which is the vane anemometer consists of its axis level to the course of the wind, which makes it horizontal. A wind vane or other wind instrument must serve its purpose since the wind direction may differ and changes from time to time.



Getting the exact and specific speed and direction of the wind from a similar instrument, a vane anemometer Sydney has a combination of tail and propeller in the same axis. An electronic chip usage for the measurement of the wind speed in conversion is necessary, and a term which known as the cross-sectional area is calculating a volumetric flow level.


Many types of anemometers depend on the usage of the project. But the purpose of measuring the wind speed plays the one common goal. In getting the device that suits your needs, it is better to do some questioning and researching the types of instruments you want to avail. When assembling a project like calculating and getting the actual speed of the wind in your area, it is necessary to know the basic types and better usage of the device to appropriately assemble the project that you want to achieve and to gain an accurate reading for the airspeed.