2023 Fiscal Year Final Research Report
THz Remote Sensor of Molecules in Fire
Project/Area Number |
20H02406
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Basic Section 25030:Disaster prevention engineering-related
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Research Institution | Shibaura Institute of Technology |
Principal Investigator |
Tanabe Tadao 芝浦工業大学, デザイン工学部, 教授 (10333840)
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Co-Investigator(Kenkyū-buntansha) |
西脇 智哉 東北大学, 工学研究科, 准教授 (60400529)
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Project Period (FY) |
2020-04-01 – 2024-03-31
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Keywords | テラヘルツ / 災害モニタリング / 分光センシング / 防災・減災 / ガスセンシング |
Outline of Final Research Achievements |
Building materials, including wallpaper (cloth material) and composite boards, were burned to 300-800°C. The generated gases were introduced into a fire chamber and the absorption peaks in the broad THz band were measured. The gas was analyzed by gas chromatography and ion chromatography as well as by detector tube testing. Absorption peaks due to hydrogen cyanide, carbon monoxide, and bromine compounds were identified along with scattering by particulates in the gas generated during burning. These were measured as averaged values over 180 seconds, and by focusing on the frequency of the absorption peaks due to specific gases, it was confirmed that the gas components could be identified in In-situ measurement.
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Free Research Field |
電磁波材料工学
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Academic Significance and Societal Importance of the Research Achievements |
火災時の有毒ガス検知は現在「検知管式ガス測定器」を用いるが、1本の検知管が測定できるガスは1種類である。本研究は新たなガスセンサとして、複数種類の有毒ガスを同時に識別するだけでなく、火炎や煙に近づかなくとも、遠隔で検出できる有毒ガス検知法として、テラヘルツ分光測定に着目した。各気体の回転エネルギー準位に基づき分子それぞれを個別に検出可能なテラヘルツ分光による火災時の迅速な救出・救助、消火に必要である有害ガスと引火性液体の識別・検出ができる新たなセンシングシステムを提案するとともにその可能性を実証した。
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