Ångström Pyrgeometer
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Ångström Pyrgeometer
An instrument developed by K. Ångström for measuring the effective terrestrial radiation. It consists of four manganin strips, of
which two are blackened and two are polished. The blackened strips
are allowed to radiate to the atmosphere while the polished strips
are shielded. The electrical power required to equalize the temperature
of the four strips is taken as a measure of the outgoing radiation.
See
actinometer,
pyrgeometer. Compare Ångström compensation pyrheliometer.
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
