Quantitative, high sensitivity diagnostics of combustion radicals using wavelength-modulated UV sources | Zendy

Kristen Peterson | Zendy; Daniel B. Oh | Zendy

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Quantitative, high sensitivity diagnostics of combustion radicals using wavelength-modulated UV sources

Author(s) -

Kristen Peterson,

Daniel B. Oh

Publication year - 2000

Publication title -

38th aerospace sciences meeting and exhibit

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2000-777

Subject(s) - combustion , radical , sensitivity (control systems) , wavelength , materials science , optoelectronics , chemistry , electronic engineering , engineering , organic chemistry

The application of wavelength modulated, tunable UV sources to combustion radical diagnostics is described. Tunable, wavelength modulated UV sources based on nonlinear mixing of high power, tunable diode lasers and fixed frequency light sources are developed for high resolution, wavelength modulation spectroscopy. These light sources are suited for quantifying key combustion species in flames by high sensitivity 2fabsorption in the UV and for concurrent 2fLIF detection. Results of CH and OH monitoring in laboratory diffusion flames are summarized and approaches to extend these measurements to other combustion species are discussed.

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