Anemometer

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Anemometer comes from the word anemos and is Greek for wind. This is an old instrument that ...

An anemometer is employed to measure wind energy, or a lot more buy here precisely wind velocity and/or pressure. The modern day anemometer is an electrical device that calculates data that is communicated to it by some other instrument e.g. a wind vane. A high good quality and modern anemometer measures each the wind velocity and pressure. There are nonetheless different sorts that performs this task differently.

Anemometer comes from the word anemos and is Greek for wind. This is an old instrument that was invented in the 15Th century, by a man named Leon Battista Alberti. His model consisted of a disk rotated by the force of the wind. This model was of course mechanical as opposed to the modern electrical. A man named Robert Hooker, later on re-invented the anemometer and is often mistakenly regarded as to be the inventor of this instrument.

The anemometer is usually combined with a wind vane when utilized on wind mills. The wind vane communicates the wind speed and direction to the anemometer that makes the calculations and passes the data into wind turbine controller, in turn the controller tells the yaw motor to turn the nacelle so that the rotor faces the wind.

Anemometers can be divided in two classes, there are those that measure the velocity of the wind and there are those that measure the pressure of the wind. A high good quality and modern day anemometer will give details about each of these quantities. Down below there is a list of anemometers that reaches the exact same goal by utilizing different technologies.

Velocity Anemometers:

Windmill anemometers

These are the kind that is attached to a wind mills.

Hot-wire anemometers

This variety makes use of a fine wire heated up to some temperature above the ambient. When the wind flows past the wire and cools the wire down a relationship can be obtained and a calculation produces appropriate data.

Laser Doppler anemometers

Uses a laser beam to measaure the wind speed and direction.

Cup anemometers

The simplest type of them all and invented in 1846 by John Thomas Romney Robinson of Armagh Observatory

Sonic anemometers

Utilizes sound waves to measure wind speed and direction.

Pressure Anemometers:

Plate anemometers

This is the simplest variety of anemometers and consists of a circular or square faced into the wind. This kind of instrument is not the most accurate.

Tube anemometers

Wind Vane

The wind vane also identified as weather vane is a movable device that is attached an elevated object such as a roof or wind mill. It can be utilized standalone or mounted attached to some other instrument such as an anemometer. The wind vane has to be located well above the ground to acquire an accurate reading.