Apogee Instruments SP-230 Посібник користувача - Сторінка 7
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(NREL) in Golden, Colorado. NREL reference standards are calibrated to the World Radiometric
Reference (WRR) in Davos, Switzerland.
Spectral Response:
Temperature response:
Spectral response estimate of Apogee
silicon-cell pyranometers. Spectral
response was estimated by multiplying the
spectral response of the photodiode,
diffuser, and adhesive. Spectral response
measurements of diffuser and adhesive
were made with a spectrometer, and
spectral response data for the photodiode
were obtained from the manufacturer.
Mean temperature response of ten
Apogee silicon-cell pyranometers (
bars represent two standard
deviations above and below mean
Temperature response measurements
were made at 10 C intervals across a
temperature range of approximately -10
to 40 C in a temperature controlled
chamber under a fixed, broad spectrum,
electric lamp. At each temperature set
point, a spectroradiometer was used to
measure light intensity from the lamp
and all pyranometers were compared to
the spectroradiometer. The
spectroradiometer was mounted
external to the temperature control
chamber and remained at room
temperature during the experiment.
7
errors
).