]> 2026-04-04T11:29:45+02:00 Publications:Application of optical spectroscopy to paper production 500 en <p>Fluorescence from paper following excitation by either ultraviolet or visible light gives information on the chemical composition of the paper. This can be used for on-line monitoring of the paper during production. Such measurements can be performed non-intrusively at sampling rates high enough to give a sub-millimetre resolution at paper webs moving at velocities higher than 20 metres per second. Two types of fluorescence meters, operating at different wavelengths, have been constructed. Together with an optical speedometer they have been tested at newsprint producing paper mills. A fluorescence based method for scanning cross-directional newsprint profiles in the laboratory has been developed. From these measurements the relative shrinkage of the paper during drying can be calculated using time-frequency analysis.</p> Conference on Optical Measurement Systems for Industrial Inspection, JUN 16-17, 1999, MUNICH, GERMANY http://dx.doi.org/10.1117/12.364266 http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:541017 325 Optical measurement systems for industrial inspection Conference Paper Proceedings of SPIE - The International Society for Optical Engineering ; 3824 318 Application of optical spectroscopy to paper production 1999 2016-09-30T20:41:10Z 2457662.3619213 Application of optical spectroscopy to paper production 500 0 plainlist list 1 [[:Publications:Application of optical spectroscopy to paper production]] Application of optical spectroscopy to paper production# QUERYdbaeee1f59771334a350b140cf33fe63 500 [2,"smw-datavalue-property-restricted-annotation-use","Publisher"] Application of optical spectroscopy to paper production# ERR6c155b5d70b69ddb590b4f2e73389c2a 500 [2,"smw-datavalue-property-restricted-annotation-use","Author"] Application of optical spectroscopy to paper production# ERRe24f17e090c98448f3de99d03182b7b6