A Fast Local Monitoring of Dilute NO by a Tunable Laser

Ryuji Koga, Megumi Kosaka, Hiroya Sano

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


This paper describes a real-time noncontacting, point-monitoring system for nitrogen monoxide. The monitoring system uses a grating-tuned pulsed dye laser and a specially developed microcomputer-assisted signal processor system. The system is sensitive for analyzing a gas concentration from 0.03 parts per million per meter (ppm/m) theoretically (which should be divided by an optical path length) to 0.4 ppm/m experimentally. The system reliability as well as the capability to detect sulfur dioxide which shares the spectral region with nitrogen monoxide was investigated.

Original languageEnglish
Pages (from-to)91-96
Number of pages6
JournalIEEE Transactions on Instrumentation and Measurement
Issue number2
Publication statusPublished - Jun 1982
Externally publishedYes

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering


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