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A pyrgeometer is a device that measures the atmospheric infra-red radiation spectrum that extends approximately from 4.5 µm to 100 µm. == Pyrgeometer components == A pyrgeometer consists of the following major components: *A thermopile sensor which is sensitive to radiation in a broad range from 200 nm to 100 µm *A silicon dome or window with a solar blind filter coating. It has a transmittance between 4.5 µm and 50 µm that eliminates solar shortwave radiation. *A temperature sensor to measure the body temperature of the instrument. *A sun shield to minimize heating of the instrument due to solar radiation. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「pyrgeometer」の詳細全文を読む スポンサード リンク
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