Optics: measuring and testing – By dispersed light spectroscopy – With raman type light scattering
Patent
1999-01-14
2000-02-22
Hantis, K. P.
Optics: measuring and testing
By dispersed light spectroscopy
With raman type light scattering
356328, G01J 344
Patent
active
060286679
ABSTRACT:
A spectrograph for analyzing the chemical composition of a sample is disclosed. Scattered light from a sample cell is collected by one or more optical fibers and is introduced into a collimating lens as a linear optical signal. The collimating lens directs the optical signal to a reflective diffraction grating which reflects the signal into a focusing lens. The focusing lens focuses the optical signal onto a charge coupled device array which converts the optical signal into a electronic signal. Aberration correction is provided by the collimating and focussing lenses. The electronic signal is analyzed and converted by computer into a representation of the chemical analysis of the sample stream.
REFERENCES:
patent: 3906241 (1975-09-01), Thompson
patent: 4416505 (1983-11-01), Dickson
patent: 4530564 (1985-07-01), Close
patent: 4540280 (1985-09-01), Anderson et al.
patent: 4573761 (1986-03-01), McLachlan et al.
patent: 4579457 (1986-04-01), Guigues
patent: 4630923 (1986-12-01), Tans et al.
patent: 4688879 (1987-08-01), Fairchild
patent: 4783168 (1988-11-01), Florisson et al.
patent: 4786171 (1988-11-01), LeFebre et al.
patent: 4818045 (1989-04-01), Chang
patent: 4830441 (1989-05-01), Chang
patent: 4867559 (1989-09-01), Bach
patent: 4879167 (1989-11-01), Chang
patent: 4884276 (1989-11-01), Dixon et al.
patent: 4895445 (1990-01-01), Granger
patent: 4896325 (1990-01-01), Coldren
patent: 4917491 (1990-04-01), Ring et al.
patent: 4937448 (1990-06-01), Mantz et al.
patent: 4943971 (1990-07-01), Fiet et al.
patent: 4963745 (1990-10-01), Maggard
patent: 4973561 (1990-11-01), Hansen et al.
patent: 4978182 (1990-12-01), Tedesco
patent: 4990780 (1991-02-01), Lee et al.
patent: 4995050 (1991-02-01), Waarts et al.
patent: 5011284 (1991-04-01), Tedesco et al.
patent: 5015049 (1991-05-01), Chang
patent: 5022038 (1991-06-01), Bradley
patent: 5028563 (1991-07-01), Feit et al.
patent: 5058124 (1991-10-01), Cameron et al.
patent: 5071208 (1991-12-01), Chang
patent: 5077481 (1991-12-01), Hoult
patent: 5103453 (1992-04-01), Kebabian et al.
patent: 5112127 (1992-05-01), Carrabba et al.
patent: 5119338 (1992-06-01), Saito
patent: 5124815 (1992-06-01), Chang
patent: 5139334 (1992-08-01), Clarke
patent: 5166747 (1992-11-01), Schroeder et al.
patent: 5170056 (1992-12-01), Berard et al.
patent: 5179630 (1993-01-01), Chang et al.
patent: 5194910 (1993-03-01), Kirkpatrick, Jr. et al.
patent: 5220401 (1993-06-01), Milsevic et al.
patent: 5225679 (1993-07-01), Clark et al.
patent: 5319668 (1994-06-01), Luecke
patent: 5348645 (1994-09-01), Maggard et al.
patent: 5349188 (1994-09-01), Maggard
patent: 5349189 (1994-09-01), Maggard
patent: 5360972 (1994-11-01), DiFoggio et al.
patent: 5362965 (1994-11-01), Maggard
patent: 5377004 (1994-12-01), Owen et al.
patent: 5381237 (1995-01-01), Sela
patent: 5386426 (1995-01-01), Stephens
patent: 5402241 (1995-03-01), Jeannotte et al.
patent: 5404218 (1995-04-01), Nave et al.
patent: 5418631 (1995-05-01), Tedesco
patent: 5424825 (1995-06-01), Delhaye et al.
patent: 5442439 (1995-08-01), Battey et al.
patent: 5455673 (1995-10-01), Alsmeyer et al.
patent: 5471327 (1995-11-01), Tedesco et al.
patent: 5524012 (1996-06-01), Wang et al.
patent: 5530565 (1996-06-01), Owen
patent: 5559597 (1996-09-01), Battey et al.
patent: 5587847 (1996-12-01), Chang et al.
patent: 5596196 (1997-01-01), Cooper et al.
patent: 5610836 (1997-03-01), Alsmeyer et al.
patent: 5615673 (1997-04-01), Berger
patent: 5638172 (1997-06-01), Alsmeyer et al.
patent: 5644396 (1997-07-01), Hopkins, II
patent: 5652653 (1997-07-01), Alsmeyer et al.
patent: 5657120 (1997-08-01), Smith
patent: 5657404 (1997-08-01), Buchanan et al.
patent: 5751415 (1998-05-01), Smith et al.
patent: 5850623 (1998-12-01), Carman, Jr. et al.
Schwab et al "Renate . . . Spectroscopy" Applied Spectroscopy, vol. 41, No. 1 1987 pp 126-130.
Gilmore et al; "Quantitative . . . Spectroscopy" Applied Spectroscopy, vol. 49, No. 4 1995 pp 508-512.
"SDL-8530--785 nm, 300 mW cw Wavelength-Stabilized High Power Laser Diode System," SDL Product Catalog, pp. C5-C7 (1996/1997).
Mark D. Weiss, "NMR and Raman Spectroscopies Move from Lab to Plant," Today's Chemist at Work, pp. 25-28, (Jan. 1995).
W. R. Kalsi, A. S. Sarpal, S. K. Jain, S. P. Srivastava, and A. K. Bhatnagar, "Determination of Oxygenates in Gasoline by 1H Nuclear Magnetic Resonance Spectroscopy," Energy & Fuels, pp. 574-579 (May 4, 1995).
Andrew J. Vreugdenhil and Ian S. Butler, "Detection of the Engine Anti-knock Additive Methylcyclopentadienyl Manganese Tricarbonyl (MMT) from Unleaded Gasoline in Soil by Diffuse Reflectance Infrared Fourier Transfer Spectroscopy and Mass Spectroscopy," Applied Spectroscopy, vol. 49 No. 4, pp. 482-485 (1995).
Christopher J. de Bakker and Peter M. Fredericks, "Determination of Petroleum Properties by Fiber-Optic Fourier Transform Raman Spectrometry and Partial Least-Squares Analysis," Applied Spectroscopy, vol. 49, No. 4, pp. 1766-1771 (1995).
John B. Cooper, Philip E. Flecher, Thomas M. Vess, and William T. Welch, "Remote Fiber-Optic Raman Analysis of Xylene Isomers in Mock Petroleum Fuels Using a Low-Cost Dispersive Instrument and Partial Least-Squares Regression Analysis." Applied Spectroscopy, vol. 49, No. 5 (1995).
John B. Cooper, Kent L. Wise, James Groves, and William T. Welch, "Determination of Octane Numbers and Reid Vapor Pressure of Commercial Petroleum Fuels Using FT-Raman Spectroscopy and Partial Least-Squares Regression Analysis," Analytical Chemistry, vol. 67, pp. 4095-4100 (1995).
Hillary L. MacDonald, Hao Liu, and Paul Yager, "Fiber Optic Sensor for General Anesthetics based on Raman Spectroscopy," SPIE, vol. 2131, pp. 514-524 (1994).
Official Gazette publication of Patent No. 5,363,463, p. 1302 (Nov. 8, 1994).
Francisco X. Garcia, Lola De Lima, and Julio C. Medina, "Determination of Methanol and Methyl tert-Butyl Ether in Gasoline by Infrared Spectroscopy Using the CIRCLE.RTM. Cell and Multivariate Calibration," Applied Spectroscopy, pp. 1036-1039 (1993).
Maximo Gallignani, Salvador Garrigues, and Miguel de la Guardia, "Direct Determinatin of Benzene in Gasoline by Flow-Injection Fourier Transform Infrared Spectrometry," pp. 267-274 (Amsterdam 1993).
Official Gazette publication of Patent No. 5,112,127, p. 912 (May 12, 1992).
Chen Zhaohui and Feng Xinlu, "Use NIR Spectroscopy for On-Line Gasoline Analysis," Hydrocarbon Processing, pp. 94-96 (Jan. 1992).
Cathy D. Newman, Georges G. Bret, and Richard L. McCreery, "Fiber-Optic Sampling Combined with an Imaging Spectrograph for Routine Raman Spectroscopy," Applied Spectroscopy, vol. 46, No. 2, pp. 262-265 (1992).
S. Michael Angel, Thomas M. Vess, and Michael L. Myrick, "Simultaneous Multi-point Fiber-optic Raman Sampling for Chemical Process Control Using Diode Lasers and A CCD Detector," SPIE (Chemical, Biochemical, and Environmental Fiber Sensors III). vol. 1587, pp. 219-231 (1991).
Kenneth P. J. Williams, Rupert E. Aries, David J. Cutler, and David P. Lidiard, "Determination of Gas Oil Cetane Number and Cetane Index Using Near-Infrared Fourier Transform Raman Spectroscopy," Analytical Chemistry, vol. 62, No. 23, pp. 2553-2556 (Dec. 1, 1990).
Yan Wang and Richard L. McCreery, "Evaluation of a Diode Laser/Charge Coupled Device Spectrometer for Near-Infrared Raman Spectroscopy," Analytical Chemistry, vol. 61 No. 23, pp. 2647-2651 (Dec. 1, 1989).
M. B. Seasholtz, D. D. Archibald, A. Lorber, and B. R. Kowalski, "Quantitative Analysis of Liquid Fuel Mixtures with the Use of Fourier Transform Near-IR Raman Spectroscopy," Applied Spectroscopy, vol. 43, No. 6, pp. 1067-1072 (1989).
Official Gazette publication of Patent No. 4,858,238, p. 2092 (Aug. 15, 1989).
Official Gazette publication of Patent No. 4,645,340 (Feb. 24, 1987).
Official Gazette publication of Patent No. 4,630,923, p. 2022 (Dec. 23, 1986).
Benner Robert E.
Smith Lee M.
Hantis K. P.
Process Instruments, Inc.
LandOfFree
Compact and robust spectrograph does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compact and robust spectrograph, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compact and robust spectrograph will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-524931