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Development of Nitrogen Components Analyzer Utilizing Quantum Cascade Laser (2)
Published May 19, 2010 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Conference
The nitrogen components (NO, NO₂, N₂) and NH₃) analyzer has been developed utilizing Quantum Cascade Laser (QCL). The QCL can emit coherent light in a mid-infrared region where these nitrogen components have strong absorption. This laser optics configuration can give us a super fine resolution of the mid-infrared spectrum. Therefore, utilizing this spectrometer it is possible to reduce the interference caused by the spectral overlap of co-existing gases in engine exhaust gas. In this report, improvement of the response time of NH₃ measurment has been attmeped. Moreover to achieve wide measurement ranges two detectors with two different light path lengths have been used.
- Kenji Hara - HORIBA, Ltd.
- Montajir Rahman - HORIBA, Ltd.
- Shigeru Nakatani - HORIBA, Ltd.
- Hiroshi Nakamura - HORIBA, Ltd.
- Yoshimasa Tanaka - HORIBA, Ltd.
- Juichiro Ukon - HORIBA, Ltd.
- Kenji Hara - HORIBA, Ltd
- Montajir Rahman - HORIBA, Ltd
- Shigeru Nakatani - HORIBA, Ltd
- Hiroshi Nakamura - HORIBA, Ltd
- Yoshimasa Tanaka - HORIBA, Ltd
- Juichiro Ukon - HORIBA, Ltd