Flame Diagnostic Using Optoacoustic Laserbeam Deflection And Frequency Modulation Spectroscopy

W. Zapka; P. Pokrowsky; E. A. Whittaker; A. C. Tam; G. C. Bjorklund

doi:10.1117/12.935391

26 October 1983 Flame Diagnostic Using Optoacoustic Laserbeam Deflection And Frequency Modulation Spectroscopy

W. Zapka, P. Pokrowsky, E. A. Whittaker, A. C. Tam, G. C. Bjorklund

Proceedings Volume 0398, Industrial Applications of Laser Technology; (1983) https://doi.org/10.1117/12.935391
Event: 1983 International Technical Conference/Europe, 1983, Geneva, Switzerland

Abstract

Two laser-based techniques, Optoacoustic Laserbeam Deflection (OLD) and Frequency Modu-lation (FM) spectroscopy, were introduced for flame diagnostics. Flame temperature was measured by OLD with 1.5% precision and flame temperature profiles were taken. Ground state and excited state sodium within an aspirated flame were detected by FM-spectroscopy. Present limits of sensitivity are absorptions of 1.5 . 10^-4 and ground state sodium densi-ties of 3.3 • 10⁶ cm ^-3.

Citation Download Citation

W. Zapka, P. Pokrowsky, E. A. Whittaker, A. C. Tam, and G. C. Bjorklund "Flame Diagnostic Using Optoacoustic Laserbeam Deflection And Frequency Modulation Spectroscopy", Proc. SPIE 0398, Industrial Applications of Laser Technology, (26 October 1983); https://doi.org/10.1117/12.935391

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