Portable optoelectronic gas sensors operating in the mid-IR spectral range (lambda=3 5 um)

S. E. Alexandrov; Gennadii A. Gavrilov; A. A. Kapralov; Sergey A. Karandashev; Boris A. Matveev; Galina Yu. Sotnikova; Nikolai M. Stus'

doi:10.1117/12.454676

5 February 2002 Portable optoelectronic gas sensors operating in the mid-IR spectral range (λ=3 5 μm)

S. E. Alexandrov, Gennadii A. Gavrilov, A. A. Kapralov, Sergey A. Karandashev, Boris A. Matveev, Galina Yu. Sotnikova, Nikolai M. Stus'

Author Affiliations +

Proceedings Volume 4680, Second International Conference on Lasers for Measurement and Information Transfer; (2002) https://doi.org/10.1117/12.454676
Event: Second International Conference on Lasers for Measurement and Information Transfer, 2001, St. Petersburg, Russian Federation

Abstract

Recently developed mid-IR LED non-dispersive gas analyzers can replace conventional infrared gas monitors. The advantages of novel analyzers are compact size, fast response and low power consumption. InAsSb(P)- and InGaAs(Sb)-based LEDs developed and manufactured at Ioffe Physico-Technical Institute suit for optical gas sensing well because of narrow emission band and the possibility of making LED emission peak spectrally matched with the gas absorption maximum. We present estimations of gas detection limits for LED based optical sensors, sensor head constructions and some experimental results for CO2 and CH4 detectors based on LED-PbSe photoresistor and LED - InAs photodiode optopairs.

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S. E. Alexandrov, Gennadii A. Gavrilov, A. A. Kapralov, Sergey A. Karandashev, Boris A. Matveev, Galina Yu. Sotnikova, and Nikolai M. Stus' "Portable optoelectronic gas sensors operating in the mid-IR spectral range (λ=3 5 μm)", Proc. SPIE 4680, Second International Conference on Lasers for Measurement and Information Transfer, (5 February 2002); https://doi.org/10.1117/12.454676

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