An ultraviolet calibration center has been established in Davos, Switzerland.
It provides a laboratory for characterizing the spectral and angular response of broadband radiometers. The absolute calibration of these instruments is performed through the comparison to the reference spectroradiometer qasume.
We present what we believe to be a novel calibration methodology that explicitly includes the information of the angular and spectral response functions. From the results of the latest broadband intercomparison campaign, the typical uncertainties of these instruments could be obtained. Most radiometers have an expanded uncertainty of approximately 7%.
The angular response introduces an uncertainty of
© 2007 Optical Society of America
(010.1290) Atmospheric and oceanic optics : Atmospheric optics
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(260.7190) Physical optics : Ultraviolet
Instrumentation, Measurement, and Metrology
Original Manuscript: April 24, 2007
Manuscript Accepted: June 7, 2007
Published: August 9, 2007
Gregor Hülsen and Julian Gröbner, "Characterization and calibration of ultraviolet broadband radiometers measuring erythemally weighted irradiance," Appl. Opt. 46, 5877-5886 (2007)