单词 | anemometer |
释义 | anemometern. 1. An instrument used to measure the speed (and sometimes also the direction) of the wind; (in later use also) an instrument for measuring the speed (and sometimes also the direction) of a current of any gas.The various different types of anemometers vary greatly in form and operation, from relatively simple mechanical devices consisting of several hemispherical cups which rotate around a vertical shaft, to instruments employing lasers or ultrasound. ΘΚΠ the world > the earth > weather and the atmosphere > weather > study or science of weather > meteorological instruments > [noun] > wind-gauge anemometer1728 wind-gauge1774 anemometrograph1796 anemograph1851 teleanemograph1891 1728 E. Chambers Cycl. Anemometer, a Machine wherewith to measure the Strength of the Wind. 1848 Tempest (Soc. Promoting Christian Knowl.) vi. 251 The various anemometers that have been described, measure the velocity of the wind by its mechanical effects. 1929 Pop. Mech. June 997/1 An anemometer placed on top of a skyscraper indicates stronger winds than those prevailing at the level of ordinary buildings. 2004 Planetary & Space Sci. 52 1178/1 Another type of anemometer which has been suggested for use on Mars is an acoustic/sonic device. 2005 J. Fredston Snowstruck viii. 231 The anemometer on our roof had blown apart in the last storm. 2. A device used to measure the amount of air pressure delivered to a given pipe in a pipe organ. Now historical and rare. ΘΚΠ society > leisure > the arts > music > musical instrument > keyboard instrument > organ > [noun] > wind-pressure indicator telltale1786 anemometer1821 wind-gauge1876 1821 Q. Musical Mag. & Rev. 3 316 The invention of the anemometer to measure the exact quantity of wind necessary to each register by a German organ builder named Christian Færner [sic], of Wettin on the Saale, in the seventeenth century, has greatly aided in bringing the organ to state of perfection. 1876 J. Hiles Catech. Organ (1878) viii. 55 A wind-gauge, or anemometer..is a small curved glass tube into which a little water is poured, and it is then placed in one of the pipe holes on the sound board. 1947 Proc. Royal Musical Assoc., 73rd Session 63 In the 17th century the anemometer was invented and special attention was given to the problem of securing an ample, even and steady supply of wind. This entry has been updated (OED Third Edition, March 2020; most recently modified version published online December 2021). < n.1728 |
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