Self-correcting spectroscopic process analysis

摘要

A method for self-correcting spectroscopic analysis of a fluid stream is provided. The method comprises actuating optical source means so as to create at least one optical beam, transmitting optical signals from said at least one optical beam in at least two modes of operation to a first optical detecting means and to a second optical detecting means, and monitoring the electrical signals as detected by each detecting means. In a first mode of operation the optical signals transmitted to the first detecting means pass trough the sample cell and optical signals transmitted to the second detector bypass the sample cell. In a second mode of operation the optical signals transmitted to the first and second detecting means bypass the sample cell.