Method for identification of composition of heterogeneous fire-resistant material used for covering interior of high temperature oven, involves quantitatively determining part of sample by calibration model, which is adapted to classes

摘要

The method involves conducting a measuring light beam on a sample. Light signals are detected based on wavelengths for obtaining a sample spectrum. The spectrum is classified into classes (2-7) by classification functions, which are successively used on the spectrum. The functions are automatically selected based on previous classification results of classification, where the results are obtained by application of the previous classification functions on the spectrum. A part of the sample is quantitatively determined (8-11) by a calibration model, which is adapted to the classes.