NBS (National Bureau of Standards) Measurement Services: The NBS Photodetector Spectral Response Calibration Transfer Program

摘要

A silicon-photodiode-based radiometer is supplied to transfer the calibration of absolute spectral response in units of A/W (Amperes/Watt) and A sq cm/W in the 250 to 1064 nm region of the spectrum. The radiometer is also characterized for linearity over the four-decade range of the amplifier gain settings. Also included with the radiometer are components and a procedure for measurement error diagnosis. The methods for obtaining and using this calibrated radiometer are described, as well as the calibration and characterization procedures used at NBS.