A COMPARITIVE ANALYSIS OF THE ERRORS IN THE MEASUREMENT OF OXYGEN BETWEEN IN-SITU AND EXTRACTIVE METHODS

The measurement of the concentration of oxygen is a critical factor in the control of many processes. The emergence of new techniques for in-situ oxygen measurement has extended the range of methods available to the user. However, to date there has been limited analysis of the actual errors present for both in-situ and traditional extractive methods. This paper explores the major contributory errors present in both cases, providing an increased understanding of the capabilities of the available techniques to users interested in the selection of oxygen analyzers.