NASA NTRS · 19860009883
Active Cavity Radiometer (ACR)
Abstract
The active cavity radiometer (ACR) measures the total solar irradiance to determine the magnitude and direction of variations in the total solar radiative output. The ACR is an electrically self calibrating cavity pyroheliometer capable of measuring the total solar irradiance with an absolute accuracy better than 0.2% and capable of detecting changes in the total irradiance smaller than 0.001%. The data will be used to study the physical behavior of the Sun and the Earth's climate.
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Moore, R.. 1986-01-01. Active Cavity Radiometer (ACR). https://ntrs.nasa.gov/citations/19860009883
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