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actinometer
actinometer (ˌæktɪˈnɒmɪtə(r)) [f. actino- + µέτρον measure.] 1. An instrument for measuring the intensity of the sun's heating rays; first invented by Sir John Herschel, and described in Edinb. Journal of Science for 1825.1833 Sir J. Herschel Brit. Assoc. Report 379 The actinometer is an instrument....
Oxford English Dictionary
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Actinometer
An actinometer is an instrument that can measure the heating power of radiation. History
The actinometer was invented by John Herschel in 1825; he introduced the term actinometer, the first of many uses of the prefix actin for scientific
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Actinograph
See also
Actinometer
Pyranometer (a type of actinograph)
Hurter and Driffield
References
Photography equipment
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dynactinometer
dynactiˈnometer ? Obs. [f. Gr. δύν(αµις power + ἀκτίς (ἀκτῑν-) ray + µέτρον measure: see -meter, and cf. actinometer.] An instrument designed to measure the intensity of the photogenic rays, and to compute the power of object-glasses.1851 M. Claudet in Philos. Mag.
Oxford English Dictionary
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Kosmos 156
Actinometer
The actinometer was designed to measure the outgoing longwave radiation (3–30 µm) from the Earth-atmosphere system; the outgoing near ultraviolet Albedo charts and radiation temperature maps produced using Kosmos 156's actinometer data were microfilmed and archived at the National Climatic Center
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photographometer
photographometer (ˌfəʊtəgrəˈfɒmɪtə(r)) [f. as photograph + -ometer, -meter.] 1. An instrument for ascertaining the degree of sensitiveness of photographic films to the chemical action of light; an actinometer.1849 Art Jrnl. 96 With the photographometer of Mr. Claudet this is easily ascertained. 1853...
Oxford English Dictionary
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Pyrheliometer
See also
Actinometer
Active cavity radiometer
Bolometer
Pyrometer
Solar constant
References
External links
Measuring instruments
Radiometry
Meteorological
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-meter
-meter in actual use commonly -ˈometer, and in some later formations -ˈimeter, a terminal element in words denoting scientific instruments for automatically measuring something. Many words with this ending, as barometer, hydrometer, hygrometer, thermometer, were formed in the 17th c., and represent ...
Oxford English Dictionary
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Orest Khvolson
He proposed the designs of an actinometer and a pyrheliometer, which would be used by the Russian weather stations for many years.
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exposure
exposure (ɛkˈspəʊʒjʊə(r)) [Appeared with composure, disposure, c 1600; app. of English formation, from expose n.1, by form-assoc. with enclose, enclosure, or other words in which the formation was etymological, repr. L. -sūra: see -ure.] 1. The action of exposing; the fact or state of being exposed....
Oxford English Dictionary
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Thomas Brown Jordan
recording by photography the variations of the barometric column, and he shortly afterwards invented a declination magnetograph and a self-recording actinometer
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Net radiometer
A net radiometer is a type of actinometer used to measure net radiation (NR) at the Earth's surface for meteorological applications.
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معدات الأرصاد الجوية
البايرانومتر pyranometer وهو نوع من actinometer -أجهزة قياس الإشعاع الشمسي على سطح مستو-، ويشمل أيضا على جهاز استشعار حساس مصمم لقياس كثافة تدفق الأشعة
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Pyranometer
A pyranometer () is a type of actinometer used for measuring solar irradiance on a planar surface and it is designed to measure the solar radiation flux See also
Actinometer
Photodiode
Heat flux sensor
Net radiometer
Pyrgeometer
Pyrheliometer
Radiometer
Sunlight
Solar constant
Sun path
References
wikipedia.org
en.wikipedia.org