Utilization of the Tunability of the Lead-Salt Diode Laser for a Fast and Local Measurement of Specific Gas Density

Hiroya Sano, Ryuji Koga, Megumi Kosaka, Koji Shinohara

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In the optical gas monitoring method using a lead-salt diode laser, a spectral scanning operation of the diode brings an immunity against spectral interference which has limited the sensitivity of prevailing methods. Local, sensitive, and noncontacting features as well as quickness are attained simultaneously. Experiments for atmospheric methane showed a sensitivity of 0.3 ppm over a path length of only 1 m. Density data were obtained at every 4 s and the immunity for spectral interference was demonstrated. Theoretically, a sensitivity of 0.015 ppm for 1 m is expected.

Original languageEnglish
Pages (from-to)66-69
Number of pages4
JournalIEEE Transactions on Instrumentation and Measurement
VolumeIM-31
Issue number1
DOIs
Publication statusPublished - 1982

Fingerprint

Density of gases
gas density
Semiconductor lasers
Diodes
Methane
Lead
semiconductor lasers
immunity
Salts
salts
Scanning
Monitoring
sensitivity
Gases
interference
Experiments
methane
diodes
scanning
gases

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Instrumentation

Cite this

Utilization of the Tunability of the Lead-Salt Diode Laser for a Fast and Local Measurement of Specific Gas Density. / Sano, Hiroya; Koga, Ryuji; Kosaka, Megumi; Shinohara, Koji.

In: IEEE Transactions on Instrumentation and Measurement, Vol. IM-31, No. 1, 1982, p. 66-69.

Research output: Contribution to journalArticle

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