Responsivity of an Eppley NIP as a Function of Time and Temperature

    Research output: Contribution to conferencePaper

    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 languageAmerican English
    Pages517-522
    Number of pages6
    StatePublished - 1998
    Event1998 American Solar Energy Society Annual Conference - Albuquerque, New Mexico
    Duration: 14 Jun 199817 Jun 1998

    Conference

    Conference1998 American Solar Energy Society Annual Conference
    CityAlbuquerque, New Mexico
    Period14/06/9817/06/98

    NREL Publication Number

    • NREL/CP-560-25584

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