Characterisation of spectrophotometers used for spectral solar ultraviolet radiation measurements
Spectrophotometers used for spectral measurements of the solar ultraviolet radiation need to be well characterised to provide accurate and reliable data. Since the characterisation and calibration are usually performed in the laboratory under conditions very different to those encountered during solar measurements, it is essential to address all issues concerned with the representation of the laboratory characterisation with respect to the solar measurements. These include among others the instrument stability, the instrument linearity, tile instrument responsiveness, the wavelength accuracy, the spectral resolution, stray light rejection and the instrument dependence to ambient temperature fluctuations. These instrument parameters need to be determined often enough so that the instrument changes only marginally in the period between successive characterisations and therefore provides reliable data for the intervening measurement period.
Bibliographic Reference: An oral report given at a Conference on: Convegno Nazionale su "Problemi e Techniche di Misura Degli Agenti" Organised by Istituto Scientifico Europeo (ISE) Held in: Ivrea 2-5 April, 2001
Record Number: 200013331 / Last updated on: 2001-06-27
Original language: en
Available languages: en