Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Andrew R. Awtry"'
Publikováno v:
Proceedings of the Combustion Institute. 31:2731-2739
Extinction concentrations in a non-premixed propane/air co-flow flame were measured for piezoelectrically generated water mist containing sub-10-μm drops. Based on comparison to flame extinction with nitrogen, it was determined that 66% of the total
Publikováno v:
Proceedings of the Combustion Institute. 31:799-806
We designed a three-channel tunable diode laser absorption spectrometer to make simultaneous in situ measurements of oxygen, carbon monoxide and water vapor in fire environments to aid in the evaluation of water-based fire suppression systems. The in
Publikováno v:
50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition.
Autor:
Andrew R. Awtry, Nicholas J. Miller, Jason K. Brasseur, Richard K. Hampton, L.S. Meng, Akheelesh K. Abeeluck, David Kurt Neumann, Michael H. Cuchiara, Kevin E. Shortoff
Publikováno v:
Conference on Lasers and Electro-Optics/International Quantum Electronics Conference.
We present our 2.3-kW Yb:YAG master oscillator power amplifier (MOPA) which has shown optical wall-plug efficiencies above 30-% with excellent beam quality. In addition, we will present our allcryogenic Yb:YAG laser.
Autor:
Kevin E. Shortoff, Jason K. Brasseur, Michael H. Cuchiara, Andrew R. Awtry, Akheelesh K. Abeeluck, Nicholas J. Miller, David Kurt Neumann, L.S. Meng, Richard K. Hampton
Publikováno v:
Laser Source Technology for Defense and Security IV.
We present our recent developments in high-power, high-efficiency cryogenic Yb:YAG laser systems. Specifically, we will discuss our 2.3-kW master oscillator power amplifier (MOPA) which has shown optical wall-plug efficiencies above 30-% (diode-drive
Publikováno v:
Laser Applilcations to Chemical, Security and Environmental Analysis.
Water concentrations were determined using tunable diode laser absorption and optical density measurements. These measurements were made in a cup burner apparatus to aid in the determination of fire suppression effectiveness of water mist. ©2006 Opt
Publikováno v:
Optics Letters. 31:900
We performed what we believe are the first simultaneous in situ measurements of liquid water and oxygen concentrations in a dense water mist environment. Direct absorption tunable diode laser absorption spectroscopy was used to make oxygen concentrat