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Vinony

radiometer

noun

  1. device to measure radiant energy
L41484 on Wikidata ↗

Wiktionary

noun

Etymology: From radio- + -meter.

  1. A device that measures radiant energy.

    “The geometry of the cone θ and the irradiance at the image of the carbon block were used to determine the absolute steradiancy of the energy in the cone θ as a radiometer calibration value.”