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文献类型：专利
| 作者 | KYOZAWA AKIO; TAKAHASHI SATOSHI; OGUCHI NOBUYUKI; HASHIMOTO SHINYA |
| 发表日期 | 1993-07-23 |
| 专利号 | JP1993049177B2 |
| 著作权人 | KAGAKU GIJUTSUCHO KINZOKU ZAIRYO GIJUTSU KENKYU SHOCHO |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | - |
| 英文摘要 | PURPOSE:To measure the concns. of the hydrocarbons in the atm. by an IR absorption measurement by using a semiconductor laser element which oscillates laser light at the temp. of liquid nitrogen as a light source and forming a multireflection length optical path cell to be introduced with this laser light into a type open to the atm. CONSTITUTION:Pb1-xCdxS1-ySey is disposed in a liquid nitrogen vessel 1 in which the semiconductor laser element is disposed, then the laser light is oscillated. Methane, ethane, and butane are diluted with gaseous nitrogen and are sealed respectively at 100ppm into a gas cell 2 for calibration. The laser light is multiple-reflected by concave mirrors 3'-3'''. Between the concave mirrors 3 and 3'' are opened to the atm. An InSb IR detectors 4, 4' cooled by liquid nitrogen are mounded on the rear side of the respective cell in order to measure the absorption intensity of the laser light. X is determined from Ig/Ic=X/100 where the intensity obtd. from the gas cell 2 for calibration is designated as Ic and the intensity obtd. from the multireflection length optical path cell 3 as Ig. The concnsn. of the respective hydrocarbons in the atm. are thus measured. |
| 公开日期 | 1993-07-23 |
| 申请日期 | 1987-05-25 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/70782]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | KAGAKU GIJUTSUCHO KINZOKU ZAIRYO GIJUTSU KENKYU SHOCHO |
| 推荐引用方式 GB/T 7714 | KYOZAWA AKIO,TAKAHASHI SATOSHI,OGUCHI NOBUYUKI,et al. -. JP1993049177B2. 1993-07-23. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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