PbS-array based NIR spectrometer for analysing fast moving process streams

Jouko Malinen, Eero Hagren, Raimo Sutinen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


A new PbS array based spectrometer has been developed for in-line quality monitoring and automation of the TMP process.The instrument is capable of measuring reflectance spectra at 24 wavelengths in the range from 1200 to 2200 nm with a resolution of 50 nm. The spectra are recorded in a parallel and simultaneous operation, which is optimal for monitoring moving and non-homogeneous sample streams. The instrument has been optimised for in-line monitoring of pulp flakes flying in a blow pipe coming from a TMP refiner in a paper mill. analyzer With modifications to the in-line probe the analyser could be applied to many other applications, outside the TMP process.
Original languageEnglish
Title of host publicationFourth European Symposium on Near Infrared (NIR) Spectroscopy - Integration into Process Control
Subtitle of host publicationKolding, Denmark, 10-12 May 2000
PublisherBiotechnological Institute
Publication statusPublished - 2000
MoE publication typeA4 Article in a conference publication

Publication series

SeriesBioteknologisk Institut. Rapport

Fingerprint Dive into the research topics of 'PbS-array based NIR spectrometer for analysing fast moving process streams'. Together they form a unique fingerprint.

Cite this