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radiometer Definition

ra·di·om·eter (rā′dē ämə tər)

noun

  1. a device containing a set of vanes that are blackened on one side and suspended on an axis in a vacuum: the vanes rotate on exposure to sunlight
  2. an instrument for measuring radiant energy in any part of the electromagnetic spectrum

Etymology: radio- + -meter

radiometer Related Forms

ra′dio·met·ric (rā′dē ō metrik) adjective ra′·di·om·etry noun

radiometer Usage Examples

Converse of object

  • use: The lamp is then scanned using a filter radiometer under computer control.
  • calibrate: A number of laser sources are often required to generate sufficient wavelength coverage to calibrate broadband filter radiometers.
  • cure: International light makes a full line of UV curing radiometers designed specifically for each application.
  • develop: The first commercial application is a system of ultra violet sensing radiometers developed with US partner company EIT.
  • design: International light makes a full line of UV curing radiometers designed specifically for each application.
  • include: A suite of standard physical parameters were also logged, including broad band radiometers.

Adjective modifier

  • cryogenic: NPL's cryogenic radiometer is the primary standard for the measurement of optical radiant power.
  • infrared: These observations are particularly relevant to space instruments which use infrared filter radiometers for earth observation.
  • cryogenically-cooled: In this presentation we will report the observation of drifts in the responsivity of cryogenically-cooled infrared filter radiometers which have very strong wavelength dependence.
  • absolute: A leaflet giving more details of the cryogenic absolute radiometer is available on request.
  • high: High accuracy filter radiometers are used in thermal and optical metrology, for temperature measurements, photometry, and derivation of spectral emission.
  • first: Areas in which NPL is a recognized world leader include the development of the first cryogenic radiometer and the use of lasers for radiometry.

Noun used with modifier

  • microwave: Passive RF sensors, which use microwave radiometers to detect RF energy emitted or reflected from objects.
  • filter: These drifts can result in the increase or decrease of the response of the filter radiometers by over 5 % .
  • satellite: Surface winds over the ocean will be deduced from scatterometer data and sea surface temperature ( SST ) from satellite radiometers.
  • phototherapy: International Light carries a complete line of phototherapy radiometers for both research and diagnostic applications.
  • wavelength: A short wavelength filter radiometer is more sensitive to small temperature changes than a longer wavelength filter radiometer.