What Does ACR Stand For?
ACR stands for Absolute Cryogenic Radiometer
ACR, or Absolute Cryogenic Radiometer, is a highly sensitive instrument used for precise measurements of radiant power. Operating at cryogenic temperatures, it significantly minimizes thermal noise, allowing for accurate determination of the electromagnetic radiation's intensity across various wavelengths. ACRs are critical in fields such as metrology, astrophysics, and climate science, where accurate radiometric measurements are essential for research and calibration purposes.
Added on 14th April 2008 | Last edited on 16th June 2025 | Edit Acronym