| Metrology area, Sub-field | Photometry and Radiometry, Properties of detectors and sources |
| Description | Total solar irradiance |
| Time of measurements | 2015 |
| Status | Approved |
| Final Reports of the comparisons | |
| References | |
| Measurand | Total solar irradiance: ~ 1000 W/m2 Comparison to the conventional primary standard defined by the World Standard Group |
| Transfer device | The World Radiometric Reference operated by the World Radiation Center |
| Comparison type | Supplementary Comparison |
| Consultative Committee | CCPR (Consultative Committee for Photometry and Radiometry) |
| Conducted by | EURAMET (European Association of National Metrology Institutes) |
| Comments | The instrument used, Cryogenic Solar Absolute Radiometer (CSAR) has been developed by NPL, PMOD/WRC and METAS.
|
| Pilot institute |
PMOD/WRC(CH)
Physikalisch-Meteorologisches Obseratorium Davos and World Radiation Center Switzerland |
| Contact person | W. Finsterle +41 58 467 51 11 |
| Pilot laboratory | |
|---|---|
| PMOD/WRC(CH) |
Physikalisch-Meteorologisches Obseratorium Davos and World Radiation Center, Switzerland, EURAMET |
| METAS |
Federal Institute of Metrology, Switzerland, EURAMET |
| NIM |
National Institute of Metrology, China, APMP |
| NPL |
National Physical Laboratory, United Kingdom, EURAMET |
| PMOD/WRC(WMO) |
Cryogenic Solar Absolute Radiometer (CSAR), WMO - International Organization, SIM |
| VNIIOFI |
All-Russian Scientific Institute for Optical and Physical Measurements, Rosstandart, Russian Federation, COOMET |
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