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A simple type of anemometer is the cup anemometer, invented (1846) by Dr. John Thomas Romney Robinson, of Armagh Observatory. |
Hot-wire anemometers, while extremely delicate, have extremely high frequency-response and fine spatial resolution compared to other measurement methods |
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Laser Doppler anemometers use a beam of light from a laser that is split into two beams, with one propagated out of the anemometer. |
A common anemometer for basic use is constructed from a ping-pong ball attached to a string. |
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The anemometer measures the time taken for an ultrasonic pulse to travel from one transducer to the opposite transducer and then compares it with the time taken for another pulse to travel in the opposite direction. |
The other forms of mechanical velocity anemometer may be described as belonging to the windmill type or propeller anemometer. |
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