Optics: measuring and testing – Velocity or velocity/height measuring – With light detector
Patent
1988-12-22
1991-03-26
Tarcza, Thomas H.
Optics: measuring and testing
Velocity or velocity/height measuring
With light detector
356318, 250362, 250364, 250573, G01P 336, G01J 330, G01T 120
Patent
active
050023896
ABSTRACT:
A noninvasive pulsed fluorescence gas velocimeter that determines dynamic parameters of a gas flow from detection of fluorescent re-radiation of excited molecules of the gas. The present invention has higher altitude capability than devices that utilize particulate scattering. The velocimeter requires no probes and utilizes a laser or other light source that does not perturb the gas flow being measured.
REFERENCES:
patent: 4251733 (1981-02-01), Hirleman, Jr.
patent: 4483614 (1984-11-01), Rogers
patent: 4506979 (1985-03-01), Rogers
patent: 4572667 (1986-02-01), Rogers
patent: 4807990 (1989-02-01), Keefer
Stevenson et al., "A Laser Velocimeter Using Laser-Induced Fluorescence", Applied Physics Letters, vol. 27, No. 7, 1 Oct. 1975, pp. 395-396.
"Velocity Measurements by Vibrational Tagging and Fluorescent Probing of Oxygen," Optics Letters, vol. 12, No. 11, Nov. 1987, pp. 861-863, by R. Miles et al.
"Digital Imaging of Reaction Zones in Hydrocarbon-Air Flames Using Planar Laser-Induced Fluorescence of CH and C.sub.2," Optics Letters, vol. 11, No. 3, Mar. 1986, by M. G. Allen et al.
"Two-Frequency Laser-Induced Fluorescence Technique for Rapid Velocity-Field Measurements in Gas Plows," Optics Letters, vol. 10, No. 5, May 1985, by B. Hiller et al.
"OH Rotational Temperature from Two-Line Laser-Excited Fluorescence," Applied Optics, vol. 20, No. 7, Apr. 1981, by R. Cattolica.
Honeywell Inc.
Shudy Jr. John G.
Tarcza Thomas H.
Wallace Linda J.
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