Fiber optic NO2 sensor for combustion control

Edward M. Schmidlin; Edgar A. Mendoza; Douglas J. Ferrell; Steven J. Syracuse; Albert N. Khalil; Robert A. Lieberman

doi:10.1117/12.170662

10 March 1994 Fiber optic NO₂ sensor for combustion control

Edward M. Schmidlin, Edgar A. Mendoza, Douglas J. Ferrell, Steven J. Syracuse, Albert N. Khalil, Robert A. Lieberman

Proceedings Volume 2068, Chemical, Biochemical, and Environmental Fiber Sensors V; (1994) https://doi.org/10.1117/12.170662
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States

Abstract

We report here experimental results for a nitrogen dioxide sensor based on optical transmission through porous silica fiber. The NO₂ optrode is activated by using a proprietary chemical pretreatment process on the porous silica. Light is coupled to and from the porous silica optrode via 600 micrometers diameter optical fibers. The peak response of the sensor is at approximately 420 nm and therefore can be monitored using a blue LED. The sensor demonstrated a reversible, full-range response from 0 to 10,000 ppm NO₂ in a balance of nitrogen. The sensor also demonstrated a sensitivity of 10 ppm. The range and sensitivity of this sensor make it suitable for monitoring nitrogen dioxide emission from combustion stacks.

Citation Download Citation

Edward M. Schmidlin, Edgar A. Mendoza, Douglas J. Ferrell, Steven J. Syracuse, Albert N. Khalil, and Robert A. Lieberman "Fiber optic NO₂ sensor for combustion control", Proc. SPIE 2068, Chemical, Biochemical, and Environmental Fiber Sensors V, (10 March 1994); https://doi.org/10.1117/12.170662

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