Abstract
This is a study of the rate of change in the responsivity of one Eppley NIP over time. The data are from calibrations of the control NIP at NREL's Solar Radiation Research Laboratory against an Absolute Cavity Radiometer. Over the five year period of this study, the responsivity of the pyrheliometer changed less than 0.1% per year. In fact, no change in responsivity over time was observed withinthe limits of measurement. A 0.5% change in responsivity of the NIP was observed over the 10 to 40 deg. C temperature range.
Original language | American English |
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Pages | 517-522 |
Number of pages | 6 |
State | Published - 1998 |
Event | 1998 American Solar Energy Society Annual Conference - Albuquerque, New Mexico Duration: 14 Jun 1998 → 17 Jun 1998 |
Conference
Conference | 1998 American Solar Energy Society Annual Conference |
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City | Albuquerque, New Mexico |
Period | 14/06/98 → 17/06/98 |
NREL Publication Number
- NREL/CP-560-25584