Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Distributive type parameters
Patent
1997-02-20
1998-11-03
Do, Diep N.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Distributive type parameters
324633, G01N 2200
Patent
active
058314393
ABSTRACT:
A highly compact, portable, pulsed-molecular-beam Fabry-Perot cavity Fourier transform microwave spectrometer which incorporates ultra-fine Fabry-Perot mirror surface finishes has been developed for trace gas analysis. The mirrors, having a surface finish of less than or equal to 0.25 microns rms, are coated with nickel and then with either gold or silver. In a further embodiment, one or more fixed-tuned Fabry-Perot cavities are incorporated within a single vacuum chamber to monitor one or more chemical species of interest.
REFERENCES:
patent: 4369404 (1983-01-01), Flygare et al.
patent: 4703273 (1987-10-01), Kolbe et al.
patent: 5057782 (1991-10-01), Brown et al.
patent: 5124653 (1992-06-01), Andresen et al.
M.D. Harmony, K.A. Beran, D.M. Angst, and K.L. Ratzlaff, "A Compact Hot-Nle Fourier Transform Microwave Spectrometer", Rev. Sci. Instru., Aug. 1995, pp. 5196-5202.
J. U-Grabow and W. Stahl, Z. Naturforsch, "A Pulsed Molecular Beam Fourier Transform Spectrometer with Parallel Molecular Beam and Resonator Axes",. 45a, 1043-1044, May 1990.
J. Z. Gillies et al., "Van der Waals Complexes in 1,3-Dipolar Cycloaddition Reactions: Ozone-Ethylene," American Chemical Society 1991, 113, pp. 2413-2421 (month unavailable).
J. Z. Gillies et al., "van der Waals Complexes of Chemically Reactive Gases: Ozone-Acetylene," American Chemical Society 1991, 113 pp. 6409-6415 (month unavailable).
R. D. Suenram et al., Fourier Transform Microwave Spectroscopy: A Potential New Analytifal Tool for Trace Gas Species, in Proceedings of the 1994 U.S. EPA/WMA International Symposium, "Measurement of Toxic and Related Air Pollutants" pp. 551-561 (month unavailable).
F. J. Lovas et al., "Using Fourier Transform Microwave Spectroscopy to Detect Hazardous Air Pollutants," in Proceedings of Optical Sensing for Environmental and Process Monitoring, Orman A. Simpson, Editor, A&WMA vol. VIP-37 (SPIE vol. 2365) pp. 58-69, Apr. 1995.
Grabow Jens U.
Harmony Marlin D.
Leonov Igor
Lovas Francis J.
Suenram Richard D.
Do Diep N.
The United States of America as respresented by the Secretary of
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