INSTRUMENTAL DEVELOPMENT OF ULTRA-HIGH PERFORMANCE NOx ANALYZER USING LASER INDUCED FLUORESCENCE TECHNIQUE

采用激光诱导荧光技术的超高性能氮氧化物分析仪的仪器开发

• 批准号: 09558066
• 负责人: KAJII Yoshizumi
• 金额: $ 8.32万
• 依托单位: THE UNIVERSITY OF TOKYO
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09558066/
• 关键词: LASER INDUCED FLUORESCENCE TECHNIQUE; NITROGEN DIOXIDE; NOx; PHOTON COUNTING; PHOTODISSOCIATION; CHMILUMINESCENCE; NO_x; NO_2; LIF; Nd:YLFレーザー; ダイノードゲート; 電子吸収帯; レーザー誘起蛍光; 消光定数; 多重反射系; 半導体レーザー励起Ndレーザー; GaAs光電面; 光子計数システム

ULTRA HIGH PERFORMANCE NOx ANALYZER USING LASER INDUCED FLUORESCENCE TECHNIQUE WAS DEVELOPED. THIS INSTRUMENT COSISTS OF DIODE LASER PUMTPED Nd:YAG LASER, CORRECTION SYSTEM OF LASER FLUCTUATION, LIF CELL, COLLECTION OPTICS FOR LIF, PHOTON COUNTING SYSTEM, VACUUM SYSTEM, AND PERSONAL COMPUTER FOR SYSTEM CONTROL AND DATA ACQUSITION. WE OPTIMIZED THESE COMPONENTS AND MADE EFFORTS FOR DOWN-SIZING THE INSTRUMENT. THE INSTRUMENT CAN MEASURE AS LOW AS 3.8 PPTV OF NOィイD22ィエD2 FOR 1 MIN. INTEGRATION. WE BROUGHT THIS INSTRUMENT TO THE OKINAWA ATMOSPHERIC STATION WHERE AIR IS VERY CLEAN AND NOx LEVEL IS VERY LOW. WE SUCCEDED TO MEASURE CLEAN HUMID MARIN NOx CONCENTRATION. INTER-COMPARISON WITH DIFFERENT PRINCIPLE OF TECHNIQUE AND GOT QUITE GOOD RESULT AND WE CONCLUDED THIS INSTRUMENT IS PRACTICALLY QUITE USEFUL AND RELIABLE ENOUGH TO MEASURE REMOTE CLEAN AIR SAMPLE.

研制了一台激光诱导荧光法超高性能NOx分析仪。该仪器由半导体激光器、脉冲Nd：YAG激光器、激光起伏校正系统、激光诱导荧光池、激光诱导荧光收集光学系统、光子计数系统、真空系统和用于系统控制和数据采集的个人计算机组成。我们优化了这些组件，并努力缩小仪器尺寸。该仪器可以测量低至3.8 PPTV的无汞D22汞D2的1分钟积分。我们把这台仪器带到了空气非常干净、氮氧化物水平非常低的冲绳大气站。我们成功地测量了清洁潮湿的海洋氮氧化物浓度。对不同原理的仪器进行了比较，结果表明，该仪器是一种实用、可靠的远距离洁净空气样品测量仪器。

项目成果

金谷有剛、定永靖宗、松本淳、Shrma,U.廣川淳、梶井克純、秋元肇: "Nighttime observation of the HO_2 radical by an LIF instrument at Oki island Japan and its possible origins"Geophysical Research Letters. 26. 2179-2182 (1999)

Yugo Kanaya、Yasumune Sadanaga、Jun Matsumoto、Shrma、U. Jun Hirokawa、Katsumi Kajii、Hajime Akimoto：“日本隐岐岛 LIF 仪器夜间观测 HO_2 自由基及其可能的起源”地球物理研究快报 26。2179-。 2182 (1999)