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sonic anemometer

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sonic anemometer [′sän·ik ‚an·ə′mäm·əd·ər]
(engineering)
An anemometer which measures wind speed by means of the properties of wind-borne sound waves; it operates on the principle that the propagation velocity of a sound wave in a moving medium is equal to the velocity of sound with respect to the medium plus the velocity of the medium.
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Cup anemometers The simplest kind of them all and invented in 1846 by John Thomas Romney Robinson of Armagh Observatory Sonic anemometers Uses sound waves to measure wind speed and direction.
Anemometer by Daniel Edstrom / Computers and Internet community
Methane concentrations were measured using two Boreal laser open-path analyzers, and a Solent three dimensional sonic anemometer measured wind velocity.
Measuring methane emissions from agricultural sources by Desjardins, R.L.; McBain, M.C.; Kaharabata, S.; Pattey, E.; MacPherson, I.; Worth, D.; Srinivasan, R / International Journal of Applied Environmental Sciences
 
 
 
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