Dispersive near-infrared spectrometer with automatic...

Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive

Reexamination Certificate

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Reexamination Certificate

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07365328

ABSTRACT:
A dispersive, diffraction grating, NIR spectrometer that automatically calibrates the wavelength scale of the instrument without the need for external wavelength calibration materials is shown. The device shows: 1) a low power He—Ne laser at right angles to the source beam of the spectrometer; 2) a folding mirror to redirect the collimated laser beam so that it is parallel to the source beam; 3) the tendency of diffraction gratings to produce overlapping spectra of higher orders; 4) a “polka dot” beam splitter to redirect the majority of the laser beam toward the reference detector; 5) PbS detectors and 6) a software routine written in Lab VIEW that automatically corrects the wavelength scale of the instrument from the positions of the 632.8 nm laser line in the spectrum.

REFERENCES:
patent: 5040889 (1991-08-01), Keane
patent: 5489980 (1996-02-01), Anthony
patent: 6067156 (2000-05-01), Slater et al.
patent: 6351306 (2002-02-01), Tedesco et al.
patent: 6480795 (2002-11-01), Bossart et al.
patent: 6483583 (2002-11-01), Wright et al.
patent: 6876931 (2005-04-01), Lorenz et al.
patent: 6958479 (2005-10-01), Burling-Claridge et al.
patent: 2001/0019410 (2001-09-01), Kojima
patent: 2005/0162646 (2005-07-01), Tedesco et al.
patent: 0296259 (1987-06-01), None
patent: 0717845 (1998-10-01), None
Soyemi, et al, “Design of a modular, dispersive spectrometer for fundamental studies in NIR spectroscopy.”, Apr. 2001, 24-33, Spectroscopy.
Blank, et al, “Transfer of near-infrared multlivariate calibrations without standards.”, Sep. 1, 1996, 2987-2995, Anal. Chem.
Wang, et al, “Multivariate Instrument Standardization.”, Dec. 1, 1991, 2750-2756, Anal Chem.
Lowry, et al, “Determination of Wavelength Accuracy in the near-infrared spectral region based on NIST's infrared transmission wavelength standard SRM 1921.”, Nov. 3, 2000, 450-455, Spectroscopic Techniques.
Busch, et al, “Wavelength Calibration of a dispersive near-infrared spectrometer using trichloromethane as a calibration standard.”, May 2000, 1321-1326, Applied Spectroscopy.
Busch, et al, “Determination of the stray light levels in a dispersive near-infrared spectrometer with trichloromethane.”, Aug. 2000, 1759-1766, Applied Spectroscopy.
Wiegen-stein, et al, “A virtual instrument approach for automation of temperature programmed desorption.”, Oct. 1998, 3707-3708, Am Inst of Physics.
Koenig, et al, “A computer driven crystal spectrometer with charge coupled device detectors for x-ray spectroscopy of laser plasmas.”, Jun. 1997, 2387-2392, Am Inst of Physics.
Kirkman, et al, “Software.”, Jul. 16, 1991, 869-872, Am Inst of Physics.
Stryjewski, “Macintosh/lab VIEW based control and data acquisition system for a single photon counting fluorometer.”, Aug. 1991, 1921-1925, Am Inst of Physics.
de Viteri, Diamond, “Virtual Instrument for flow-injection analysis with sensor array detection.”, Aug. 1994. 229-232, Analytical Proceedings.
Workman, et al, “Review of chemometrics applied to spectroscopy: 1985-95, Part 1.”, 1996, 74-124, Applied Spectroscopy Reviews.
Soyemi, “Design of data acquisition and analysis systems in near infrared spectroscopy: a virtual instrument approach.”, May 2000, Dissertation-Doctor of Philosphy-Baylor U.
FACSS 2000 Conference,Final Program Book of Abstracts, Sep. 24-28, 2000, FACSS National Office.
Wells, “The LabVIEW student edition user's guide.”, Prentice Hall, New Jersey.
Griffiths, Haseth, “Fourier transform infrared spectrometry.”, 1986, John Wiley & Sons, Inc. New York.
Martens, et al, “Multivariate calibration.”, 1989, John Wiley & Sons, Inc. New York.
Burns, Ciurczak, “Handbook of near-infrared analysis.”, 1992, Marcel Dekker, Inc., New York.
Workman and Coates, “Multivariate Calibration Transfer The Importance of Standardizing Instrumentation.”, Nov./Dec. 1993, 36-42, Spectroscopy.

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