NOAA Antarctic UV Monitoring Network

Absolute Calibration Lamp Comparison Ratio Plots

Default Reference Scan Denoted by *

No Lamp Scans located...

1) Select a lamp serial Number.
2)Select the desired Test and Ref Scan Files.
3) Select Submit.

SUV-100 Spectroradiometers are calibrated about once every two weeks using external lamps having NIST-traceable Standards of Spectral Irradiance. This tool allows different calibration scans of a specific lamp to be compared (ratio'ed) to one another. During an Absolute calibration scan, data from an external 200 Watt standard lamp and the instrument's internal 45 Watt lamp are logged. The three panels represent the ratios of the Photomultiplier Tube (PMT) currents sampled across the spectral range of the instrument for two 200W lamp scans, two 45W lamp scans, and two dark-current scans