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What (who) is pyrheliometer - definition
Pyrheliometer
METEOROLOGICAL INSTRUMENTATION FOR MEASURING DIRECT BEAM SOLAR IRRADIANCE
·noun An instrument for measuring the direct heating effect of the sun's rays.
Pyrheliometer
METEOROLOGICAL INSTRUMENTATION FOR MEASURING DIRECT BEAM SOLAR IRRADIANCE
A pyrheliometer is an instrument for measurement of direct beam solar irradiance. Sunlight enters the instrument through a window and is directed onto a thermopile which converts heat to an electrical signal that can be recorded.
actinometer
![Actinometer instrument designed by [[Jules Violle]] and used to estimate the temperature of the Sun's surface.](https://commons.wikimedia.org/wiki/Special:FilePath/PSM V18 D029 The violle actinometer.jpg?width=200 "Actinometer instrument designed by [[Jules Violle]] and used to estimate the temperature of the Sun's surface.")
METEOROLOGICAL INSTRUMENTATION
Actinometry; Ångström pyrheliometer; Actinography
[?akt?'n?m?t?]
¦ noun Physics an instrument for measuring the intensity of radiation.
Origin
C19: from Gk aktis, aktin- 'ray' + -meter.
Wikipedia
Pyrheliometer
A pyrheliometer is an instrument for measurement of direct beam solar irradiance. Sunlight enters the instrument through a window and is directed onto a thermopile which converts heat to an electrical signal that can be recorded.
