anemometer

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anemometer:

see windwind,
flow of air relative to the earth's surface. A wind is named according to the point of the compass from which it blows, e.g., a wind blowing from the north is a north wind.
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Anemometer

An instrument to measure the speed or velocity of gases either in a contained flow, such as airflow in a duct, or in unconfined flows, such as atmospheric wind. To determine the velocity, an anemometer detects change in some physical property of the fluid or the effect of the fluid on a mechanical device inserted into the flow.

An anemometer can measure the total velocity magnitude, the velocity magnitude in a plane, or the velocity component in a particular direction. The cup anemometer, for example, measures the velocity in a plane perpendicular to the axis of its rotation cups. If the cup anemometer is mounted with the shaft perpendicular to the horizontal, it will measure only the component of the wind that is parallel to the ground. Other anemometers, such as the pitot-static tube, are used with the tip aligned with the total velocity vector. Before using an anemometer, it is important to determine how it should be positioned and what component of the total velocity its measurement represents.

An anemometer usually measures gas flows that are turbulent. The cup anemo meter, pitot-static tube, and thermal anemometer are mostly used to measure the mean velocity, while the hot-wire, laser Doppler, and sonic anemometers are usually used when turbulence characteristics are being measured. (The term “thermal anemometer” is often used to mean any anemometer that uses a relationship between heat transfer and velocity to determine velocity.)

anemometer

[‚an·ə′mäm·əd·ər]
(engineering)
A device which measures air speed.

anemometer

An instrument for measuring the velocity of airflow.

anemometer

anemometer
An instrument to measure wind velocity. The common cup type of anemometer consists of three or more hemispherical cups extending on horizontal arms from a vertical shaft or spindle. The higher the speed, the faster the cups will rotate. By suitable gearing, a pointer indicates the speed.

anemometer

an instrument for recording the speed and often the direction of winds
References in periodicals archive ?
Purchase and delivery of anemometric in connection with the implementation of the project "modernization and construction of new infrastructure and scientific research military university of technology and warsaw university of technology for joint research the numerical experimental air turbine engines" no poig.
In order to make the best decision concerning the place where a SWT can be installed in the urban area and the height at which the rotor can be installed without too high costs, we suggest in this paper that the measurements of the wind's speed, its direction, density and height measured by installing an anemometric pole should be replaced with a balloon filled with helium, which moves the measurement sensors in different vertical and horizontal locations.
Both the old and new anemometric sensors used on AF's A330/A340s and A320s are made by Thales Group.