An on-line NMR technique with a programmable processor

摘要

Nuclear magnetic resonance (NMR) spectroscopy is used to determinemolecular content of materials, mainly in laboratory measurements. Thereduced cost of fast computer processors, together with recent breakthrough in digital signal processor technology, has facilitated theon-line use of NMR by allowing modifications of the availabletechnology. This paper describes a system and an algorithm for improvingthe on-line operations. It is based on the time-domain NMR signaldetected by the controller and some prior knowledge of chemical signalpatterns. The desired signal can be separated from a composite signal byusing an adaptive line enhancer (ALE) filter. This technique would beuseful for upgrading process procedures in on-line manufacturing