- 著者
- 高久 玲音 王 明耀 Reo TAKAKU Mingyao Wang
- 出版者
- 国立社会保障・人口問題研究所
- 雑誌
- 社会保障研究 = Journal of Social Security Research (ISSN:03873064)
- 巻号頁・発行日
- vol.7, no.3, pp.224-235, 2022-12
特集論文
1 0 0 0 OA 行政制裁の許容性と基本構造
- 著者
- 王 明喆
- 出版者
- Tohoku University
- 巻号頁・発行日
- 2022-03-25
課程
1 0 0 0 OA 大気中微量ガス濃度測定のための高速波数掃引方式TDLASシステムの開発
- 著者
- 平岡 孝之 香川 直己 王 明 和田 修己 古賀 隆治
- 出版者
- The Institute of Electrical Engineers of Japan
- 雑誌
- 電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)
- 巻号頁・発行日
- vol.117, no.11, pp.1670-1676, 1997-10-20 (Released:2008-12-19)
- 参考文献数
- 8
A tunable diode laser absorption spectrometry (TDLAS) system has been developed in order to apply it to an open atmospheric path which is often suffered from heavy scintillation. A quick scanning of the laser frequency and the digital signal processing architecture are employed to cope with it. The laser frequency is scanned over 4 ms around an absorption line of CH4 in 7μm band every 31ms.Received signal is treated with a DSP system to achieve the best SNR and also to separate the absorption signal from scintillation. Column density of CH4 is produced on every laser frequency scanning. The adjoint spectrum algorithm is employed to achieve the separating capability.