Microwave spectrometers

Details Microwave spectrometers Microwave spectrometers

1995-05-15

1996-08-20

Wieder, Kenneth A.

Electricity: measuring and testing

Particle precession resonance

Using an electron resonance spectrometer system

324314, 324313, 324636, G01R 3320

Patent

active

055482171

ABSTRACT:
A microwave spectrometer includes a sensing chamber into which is introduced a gas or constituent to be analyzed. Microwave radiation is introduced into the chamber and any of the chamber resonant frequency, the microwave frequency, and the center frequency of the absorption peak are varied independently. The resultant variation in intensity of the microwave radiation in the chamber is monitored to determine the concentration of the gas within said chamber. The spectrometer may include a frequency measuring and reference system for measuring the resonant frequency of the chamber.

REFERENCES:
patent: 3197692 (1965-07-01), Hyde
patent: 3348136 (1967-10-01), Nelson
patent: 3350633 (1967-10-01), Hyde
patent: 3372331 (1968-03-01), Larson
patent: 3585494 (1971-06-01), Bozanic
patent: 3691453 (1972-09-01), Rupp
patent: 3691454 (1972-09-01), Hrubesh
patent: 4593248 (1986-06-01), Hyde
Ogasawara:"Highly Sensitive Procedures for Measuring Permeabilities for Circularly . . . "--IEEE Trans. on Magnetics--May 76--pp. 256-259.
By W. Fehse et al., "The Construction of a Microcomputer Controlled Microwave-Microwave Double Resonance Spectrometer Incorporating Two Crossed Fabry-Perot Resonators", May 1983, pp. 263-270, vol. 97, The Netherlands.
By W. Kolbe et al., "GHz pulsed Fourier transform microwave spectrometer", Jan. 1985, pp. 97-102, vol. 56, No. 1.
By A. Dymanus, "High-Q Stark Cavity Absorption Cell for Microwave Spectrometers", Mar. 1959, vol. 30, Nov. 3, pp. 191 -195.
By L. Hrubesh et al., "A Gunn Diode Microwave Cavity Spectrometer", Jun. 1969, pp. 595-560.
By R. Collier, "Variable-Frequency Microwave Cavity Spectrometer", Dec. 1954, vol. 25, No. 12, pp. 1205-1207.
B. W. Kolbe et al., "140 GHz Microwave Spectrometer for the Detection of Gaseous Chemical Species", Nov. 1983, pp. 733-749.
By G. Reesor et al., "X-band Spectrometer with a Rectangular Resonant Stark Cell", Jun. 1975, vol. 46, No. 6.
By R. Nandi et al., "Microwave-microwave double resonance using a Fabry-Perot cavity spectrometer", Oct. 1983, vol. 54, No. 10, pp. 1377-1379.
By H. Uehara et al., "Continuous Ammonia monitor using a Stark microwave cavity resonator onator", Mar. 1980, vol. 51, No. 3, pp. 334-337.
By M. Lee et al., "A Cavity Type Absorption Cell for Double Resonance Microwave Spectrosccopy", Apr. 1972, vol. 43, No. 4, pp. 638-640.
By H. Uehara et al., "A Sensitive Microwave Cavity Spectrometer: Direct Detection of Formaldehyde in Automobile Exhaust", Oct. 15, 1974, vol. 28, No. 4, pp. 597-599.
By L. Hrubesh et al., "A Cavity Search Spectrometer for Free Radical Microwave Rotational Absorption Studies", Jun. 1971, vol. 42, No. 6, pp. 789-796.

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