Absolute radiometric calibration facility

For earth observation instruments accurate on ground calibration is necessary to characterize sensor parameters that are used for the in orbit calibration. TNO Institute of Applied Physics has developed an absolute radiometric calibration facility for the calibration of both complete instruments and diffusers. The facility operates in the wavelength range of 240 - 2400 nm. It incorporates a specially designed spectral irradiance source and a so called Brewster polarization. For accurate diffuser calibration a detector assembly is developed. In this paper the calibration facility with its features is described in some detail and a few calibration results are given.© (1995) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.