| 基于拉曼光谱的火烧熔痕定量鉴识技术 |
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| 引用本文： | 丁诗懿,杨涵,汪箭.基于拉曼光谱的火烧熔痕定量鉴识技术[J].消防科学与技术,2021,40(6):929-932. |
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| 作者姓名： | 丁诗懿 杨涵 汪箭 |
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| 作者单位： | 1. 杭州市消防救援支队，浙江杭州310000；2. 中国科学技术大学火灾科学国家重点实验室，安徽合肥230026 |
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| 基金项目： | 国家自然科学基金项目（51991352） |
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| 摘 要： | 利用Raman 光谱技术对火灾中铜导线火烧熔痕的附着碳进行检测，分析了样品光谱的峰位、峰形及峰强等光谱特征，同时使用五带拟合法对Raman 光谱进行分峰拟合后，进行定量分析。结果表明：不同火场温度以及作用时间的铜导线火烧样品的Raman 光谱差异性较大，火烧熔痕样品Raman 光谱的D1峰半峰宽小、峰强大，ID2/IG 趋近于0，ID3/IG、ID4/IG 较小。研究结论说明Raman 光谱法可有效鉴识火烧熔痕，为研究火灾原因提供指导意见。
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| 关 键 词： | 熔痕 火烧 Raman光谱 定量分析 火灾原因 |
Raman spectral identification technology of the burned globules |
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| DING Shi-yi,YANG Han,WANG Jian.Raman spectral identification technology of the burned globules[J].Fire Science and Technology,2021,40(6):929-932. |
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| Authors: | DING Shi-yi YANG Han WANG Jian |
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| Affiliation: | 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 |
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| 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. |
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| Keywords: | globules burning traces Raman spectrum quantitative analysis cause of fire |
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