Pyrheliometer

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

A pyrheliometer is an instrument that can measure 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. The signal voltage is converted via a formula to measure watts per square metre.

Excerpt from the Wikipedia article “Pyrheliometer”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Hukseflux Thermal Sensors, CC BY 4.0, via Wikimedia Commons.