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Titolo:
Differential absorption lidar at 1.67 mu m for remote sensing of methane leakage
Autore:
Ikuta, K; Yoshikane, N; Vasa, N; Oki, Y; Maeda, M; Uchiumi, M; Tsumura, Y; Nakagawa, J; Kawada, N;
Indirizzi:
Kyushu Univ, Grad Sch Informat Sci & Elect Engn, Fukuoka 8128581, Japan Kyushu Univ Fukuoka Japan 8128581 i & Elect Engn, Fukuoka 8128581, Japan KyushuJapan, Interdisciplinary Grad Sch Engn Sci, Kasuga, Fukuoka 8168580,Kyushu Univ Kasuga Fukuoka Japan 8168580 gn Sci, Kasuga, Fukuoka 8168580, Mitsubishi Heavy Ind, Nishi Ku, Hiroshima 7338553, Japan Mitsubishi Heavy Ind Hiroshima Japan 7338553 u, Hiroshima 7338553, Japan
Titolo Testata:
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
fascicolo: 1A, volume: 38, anno: 1999,
pagine: 110 - 114
SICI:
0021-4922(199901)38:1A<110:DALA1M>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Keywords:
lidar; differential absorption lidar; CH4; tunable IR laser; Ti : sapphire laser; optical parametric oscillator; gas leak detection;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Ikuta, K Kyushu Univ, Grad Sch Informat Sci & Elect Engn, Fukuoka 8128581,Japan Kyushu Univ Fukuoka Japan 8128581 Engn, Fukuoka 8128581, Japan
Citazione:
K. Ikuta et al., "Differential absorption lidar at 1.67 mu m for remote sensing of methane leakage", JPN J A P 1, 38(1A), 1999, pp. 110-114

Abstract

A differential absorption lidar (DIAL) for field monitoring of methane (CH4) leakage at a wavelength of 1.67 mu m was;I developed. Compared with traditional DIAL systems for environmental monitoring, this system has a higherdistance resolution (similar to 15m) for determining the leak position anda shorter detection range up to 500m. First, considering appropriate design parameters, a theoretical simulation was performed to evaluate the sensitivity and the detectable range of the system. Based on the analytical simulation; a prototype DIAL system was constructed and the detection of CH4 which had leaked into the atmosphere was demonstrated; The CH4 leakage of 6000ppm.m at a distance of 130 m was successfully detected. The detection limit was 1000 ppm.m. With the improvements in the light source and the detector system, the detectable boundary can be increased in the range from 90 to 540 m for a concentration of 1500 ppm.m.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/20 alle ore 07:28:52