Optics: measuring and testing – Optical pyrometers
Reexamination Certificate
2006-07-11
2006-07-11
Lauchman, Layla G. (Department: 2877)
Optics: measuring and testing
Optical pyrometers
C356S045000
Reexamination Certificate
active
07075629
ABSTRACT:
A pyrometer having at least two detectors and at least two band-pass filters near each to limit the detectable wavelength band emitted by an object, and a device to exchange their filters to eliminate detector output ratio errors. The detector output ratio is then used to derive the color temperature of the object, which may have fast changes in emission intensity output.
REFERENCES:
patent: 3619059 (1971-11-01), Muller et al.
patent: 3860344 (1975-01-01), Garfunkel
patent: 3904880 (1975-09-01), Benz et al.
patent: 4233513 (1980-11-01), Elder et al.
patent: 4410266 (1983-10-01), Seider
patent: 4470710 (1984-09-01), Crane et al.
patent: 4659234 (1987-04-01), Brouwer et al.
patent: 4817020 (1989-03-01), Chande et al.
patent: 5165796 (1992-11-01), Gat et al.
patent: 5235399 (1993-08-01), Usui et al.
patent: 5500530 (1996-03-01), Gregoris
patent: 5755510 (1998-05-01), Hernandez et al.
patent: 5900635 (1999-05-01), Weckstrom
patent: 6409198 (2002-06-01), Weimer et al.
patent: 6422745 (2002-07-01), Steglich et al.
patent: 0729023 (1996-08-01), None
Allen, et al., “Infrared Characterization of Particulate and Pollutant Emissions from Gas Turbine Combustors,” AIAA, 39th AIAA Aerospace Sciences Meeting & Exhibit, pp. 1-15, Jan. 8-11, 2001, Reno, NV.
Bonne, et al., “Combustion Controls for Alternative Fuels,” ASHRAE Trans. 87-I, pp. 361-380, 1981.
Bonne, Ulrich, “Optical Investigations in the Reaction Zone of Soot-Forming Flames,” PhD Thesis, University of Gottingen, Germany, 1964. (no English translation available).
Jenkins, et al., “A Soot Temperature Diagnostic Combining Flame Emission and Modulated Laser Absorption,” AIAA, 38th Aerospace Sciences Meeting & Exhibit, pp. 1-9, Jan. 10-13, 2000, Reno, NV.
Maldaque, et al., “Dual imager and its applications to active vision robot welding, surface inspection, and two-color pyrometry,” Optical Engineering, vol. 28, No. 8, pp. 872-880, Aug. 1989.
Snyder, et al., “Determination of gas-temperature and velocity profiles in an argon thermal-plasma jet by laser-light scattering,” The American Physical Society, vol. 47, No. 3, pp. 1996-2005, Mar. 1993.
See Bi-Cell devices at www.advancedphotonix.com, “Bi-Cell and Quadrant Photodiodes,” 1 page.
See http://www.wintron.com, Wintronics Infrared Thermometers, http://wintron.com/Infrared/infrared.htm, 2 pages, Oct. 14, 2003.
Check for “Milestones,” at http://www.cmst.org/cmst/Cmst-Cp—reports/Apr95/CH033501.html, pp. 1-4, Oct. 10, 2003.
See work by Steve Ridder, NIST Metallurgy Division (301) 975-6175, stephen.ridder@nist.gov, “Extended Temperature Range for Calibration of Two-Color Pyrometers”, and at http://ts.nist.gov/ts/htdocs/200/oct01.htm , NIST Representatives Report, Oct. 2001, pp. 5-6, Oct. 10, 2003.
See http://www.spectrogon.com/bandpass.html, Bandpass Filters, pp. 1-16, Oct. 13, 2003.
Bonne Ulrich
Cole Barrett E.
Dudebout Rudolph
Nwadiogbu Emmanuel
Wood Roland A.
Fredrick Kris T.
Honeywell International , Inc.
Lauchman Layla G.
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