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Instruments > Earth Remote Sensing Instruments > Passive Remote Sensing > Thermal/Radiation Detectors > Eppley PIR

Preferred term

Eppley PIR  

Definition

  • The Precision Infrared Radiometer (Pyrgeometer) is intended for measurement, separately, of downwelling or upwelling longwave irradiance. Unlike instruments that measure the shortwave (solar) irradiance, there is no official ISO/WMO classification of pyrgeometers which are designed to measure the longwave (infrared) irradiance from the sky. The PIR comprises the same wirewound thermopile detector and temperature compensation circuitry as found in the SPP pyranometers. This thermopile detector is used to measure the “net radiation” of the PIR and a case thermistor (YSI 44031) is used to determine the outgoing radiation from the case. A dome thermistor is included if one wishes to measure the dome temperature as compared to the case temperature to make any “corrections” to the final result. (en)

Broader concept

Change note

  • 2023-03-16 12:06:38.0 [sritz] Insert Concept add broader relation (Eppley PIR [89b90dcc-3ff5-4e85-902e-519136081345,1246978] - Thermal/Radiation Detectors [5440f386-8dac-4779-91a6-e610a06ab6f5,1238316]);
  • 2023-03-16 12:09:00.0 [sritz] insert AltLabel (id: null category: primary text: Eppley Laboratory Precision Infrared Radiometer language code: en); insert Definition (id: null text: The Precision Infrared Radiometer (Pyrgeometer) is intended for measurement, separately, of downwelling or upwelling longwave irradiance. Unlike instruments that measure the shortwave (solar) irradiance, there is no official ISO/WMO classification of pyrgeometers which are designed to measure the longwave (infrared) irradiance from the sky. The PIR comprises the same wirewound thermopile detector and temperature compensation circuitry as found in the SPP pyranometers. This thermopile detector is used to measure the “net radiation” of the PIR and a case thermistor (YSI 44031) is used to determine the outgoing radiation from the case. A dome thermistor is included if one wishes to measure the dome temperature as compared to the case temperature to make any “corrections” to the final result. language code: en);

URI

https://gcmd.earthdata.nasa.gov/kms/concept/89b90dcc-3ff5-4e85-902e-519136081345

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