主管:中华人民共和国应急管理部
主办:应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU

Fire Science and Technology ›› 2021, Vol. 40 ›› Issue (6): 929-932.

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Raman spectral identification technology of the burned globules

DING Shi-yi1, YANG Han1, WANG Jian2   

  1. 1.Hangzhou Fire and Rescue Division, Zhejiang Hangzhou 310000, China; 2. State Key Laboratory of Fire Science, University of Science and Technology of China, Anhui Hefei 230026, China
  • Online:2021-06-15 Published:2021-06-15

Abstract: In this paper, Raman spectral is used to test the adherent carbon of the copper conductor burned globules. The spectral characteristics such as peak position, peak shape and peak intensity of the sample spectrum are analyzed. And quantitative analysis of the Raman spectra is also performed after the peakdifferentiating using the five- band differentiating method. The results show that the Raman spectra of the burned globules wire samples with different fire temperatures and time are quite different. The width of the half D1 peak is small and the peak intensity is strong. ID2/IG approaches 0, ID3/IG and ID4/IG is relatively small. The conclusion of the study indicates that the Raman spectrum can effectively identify the burning traces of the globules, and provide guidance for the research of the cause of fire.

Key words: globules, burning traces, Raman spectrum, quantitative analysis, cause of fire