Research on Pyrolysis-EGA of Eaglewood and Its Curve Similarity Matching

Abstract

To identify the eaglewood with curves generated by pyrolysis-EGA (Evolved Gas Analyzing), a curve similarity approach is proposed based on improved cosine similarity measure. Firstly, pyrolysis-EGA is be used to obtain the volatilization data and curve of given eaglewood by analyzing evolved gas. Then a data processing method is proposed to solve the difference of emission concentration and the peak shift. Finally, an improved cosine similarity is utilized to matching the different types of eaglewood by compare the sample curve with the datasets constructed by measured curves. The experimental results show that the method of this paper has a good achievement and can find the most similar type of eaglewood.