Including Spectrometer Or Spectrophotometer Patents (Class 250/339.07)
  • Patent number: 8227256
    Abstract: Two-color (two-photon) excitation with two confocal excitation beams is demonstrated with a Raman shifter as excitation light source. Two-color excitation fluorescence is obtained from Coumarin 6H dye sample (peak absorption=394 nm, peak fluorescence=490 nm) that is excited using the first two Stokes outputs (683 nm, 954 nm, two-color excitation=398 nm) of a Raman shifter pumped by a 6.5 nsec pulsed 532 nm-Nd:YAG laser (Repetition rate=10 Hz). The two Stokes pulses overlap for a few nanoseconds and two-color fluorescence is generateven with focusing objectives of low numerical apertures (NA?0.4). We observed the linear dependence of the two-color fluorescence signal with the product of the average intensities of the two Stokes excitation beams. The two-color fluorescence distribution is strongly localized around the common focus of the confocal excitation beams.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: July 24, 2012
    Inventors: Caesar A. Saloma, Wilson O. Garcia, Jonathan A. Palero
  • Publication number: 20120184827
    Abstract: A miniature medical spectrometer is provided, the spectrometer comprises: a room temperature, electrically excited, solid state two photon laser generating high intensity broad wavelength; a light projection optics, projecting said generated light on biological subject; a light collection optics, collecting reflected light from said biological subject; a wavelength selector spectrally analyzing said collected light; a detector, detecting said analyzed light; and a controller analyzing the reflected spectra and calculating result indicative of the medical state of the biological subject based on said spectrum.
    Type: Application
    Filed: June 16, 2010
    Publication date: July 19, 2012
    Inventors: Shoulamit Cohen Shwartz, Meir Orenstein
  • Patent number: 8222605
    Abstract: The present invention relates to a method for the determination of the total acid number and naphthenic acid number of petroleum, petroleum cuts and petroleum emulsions of water-in-oil type by mid-infrared spectroscopy utilising correlation between data gathered by means of absorption spectrums obtained with a Fourier-transform infrared spectrophotometer operating in the mid-infrared band equipped with an attenuated total reflectance (ATR) accessory, and acidity results obtained through reference methods utilising a multivariate regression model.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: July 17, 2012
    Assignee: Petroleo Brasileiro S.A.—Petrobras
    Inventors: Monica Teixeira Da Silva, Geciliane Henriques De Andrade, Maria Isabel Calicchio Lopes, Claudia Maria Silva Braga
  • Publication number: 20120153158
    Abstract: A method for measuring a spectrum of an optical sensor, advantageously in the infrared region, in which a light beam impinges on an optical sensor in contact with a medium to be measured, wherein the optical sensor transmits a measurement beam changed by the medium to be measured and the measurement beam is fed to a pyrodetector, which issues output signals corresponding to the spectrum. The intensity of the measurement signal is modulated before impinging on a pyrodetector. In order to provide a cost effective, vibration free measuring apparatus, which has a long lifetime, intensity modulation of measurement beam occurs by tuning-in wavelengths contained in the optical spectrum of measuring beam.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 21, 2012
    Applicant: Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG
    Inventors: Hakon Mikkelsen, Ralf Bernhard
  • Publication number: 20120145906
    Abstract: A portable device for detecting explosives and other target materials using SWIR spectroscopic imaging, including hyperspectral imaging. The device may comprise a lens, a tunable filter, and a detector. The device may use solar radiation, or may comprise an illumination source such as a laser, to illuminate at target material and thereby produce interacted photons. The device may utilize multi-conjugate liquid crystal filter technology to filter interacted photons. The disclosure also provides for a method for using the portable device comprising illuminating a target material to produce interacted photons. The interacted photons are used to form a SWIR spectroscopic image, which may be a hyperspectral image. This image is analyzed to thereby identify the target material. This analysis may comprise comparing at least one spectrum or image representative of the target material to a reference spectrum or image. This comparison may be accomplished using a chemometric technique.
    Type: Application
    Filed: June 11, 2010
    Publication date: June 14, 2012
    Applicant: Chemlmage Corporation
    Inventors: Patrick Treado, Matthew Nelson, Charles W. Gardner, JR.
  • Publication number: 20120145907
    Abstract: The invention provides a high pressure dynamic environmental chamber for analysis of solids in a liquid suspension in motion at pressures ranging from vacuum to 2000 bars or more and temperatures from ?50° C. to 500° C., using a liquid and/or a gas phase as pressurizing medium. The chamber is equipped with an entry window and an exit window so that the suspension can be illuminated and analyzed, using X-ray Diffraction, Raman Spectroscopy, Infrared Spectroscopy, or other photon radiation. The concept of direct analysis of a solid in suspension in motion over a wide range of pressures and temperatures is an important aspect of this invention. This motion is useful for X-ray diffraction analysis of the dispersed solid material, because it allows for a continuous change in the crystallographic orientation of the solid phase with respect to the primary X-rays while keeping the solid material in suspension.
    Type: Application
    Filed: November 11, 2011
    Publication date: June 14, 2012
    Inventor: August F. Koster van Groos
  • Patent number: 8189901
    Abstract: The present disclosure provides systems and methods for sorting seeds based on identified phenotypes of the seeds. In various embodiments, the system includes an optics and controller station structured and operable to collect image data of a top portion, a bottom portion and a plurality of side portions of each respective seed in a set of seeds, and to analyze the collected image data to determine whether each seed exhibits a desired phenotype. The system further includes a seed loading, transporting and sorting station structured and operable to singulate each seed of the set of seeds from a plurality of seeds in a bulk seed hopper, transport the set of seeds to the optics and controller station, and selectively sort each seed to a respective one of a plurality of seed repositories based on whether each respective seed exhibits the desired phenotype.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: May 29, 2012
    Assignee: Monsanto Technology LLC
    Inventors: Steven H. Modiano, Kevin L. Deppermann, James Crain, Sam R Eathington, Mike Graham
  • Patent number: 8180581
    Abstract: Groups of correlated representations of variables are identified from a large amount of spectrometry data. A plurality of samples is analyzed and a plurality of measured variables is obtained from a spectrometer. A processor executes a number of steps. The plurality of measured variables is divided into a plurality of measured variable subsets. Principal component analysis followed by variable grouping (PCVG) is performed on each measured variable subset, producing one or more group representations for each measured variable subset and a plurality of group representations for the plurality of measured variable subsets. While the total number of the plurality of group representations is greater than a maximum number, the plurality of group representations is divided into a plurality of representative subsets and PCVG is performed on each subset. PCVG is performed on the remaining the plurality of group representations, producing a plurality of groups of correlated representations of variables.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: May 15, 2012
    Assignee: DH Technologies Development Pte. Ltd.
    Inventors: Gordana Ivosev, Ronald Bonner
  • Publication number: 20120112072
    Abstract: A device for determining the composition of a mixture of fluids by spectral absorption, comprises: a radiation source; a detector for detecting radiation that has been attenuated by the mixture; and a device for separating the radiation into a wavelength band corresponding to an absorption band of one of the fluids, a wavelength band corresponding to an absorption band of another of the fluids, and at least one reference wavelength band substantially adjacent to each of the absorption bands, and especially adjacent to each side of the absorption band or group of absorption bands. The device may be used to determine the composition of mixtures of oil, water and gaseous hydrocarbons in oil wells where there is a very large degree of time varying scattering e.g. Rayleigh and Mie scattering due to turbulence.
    Type: Application
    Filed: June 4, 2010
    Publication date: May 10, 2012
    Inventors: Robert Jones, Matthew James Hayes, Paul David Ryder
  • Patent number: 8153979
    Abstract: A device for interference spectroscopic analysis of radiation is of the interference type. The device includes at least a first reflecting layer onto which is deposited a multilayer of alternately transparent and photo-absorbing films. Each photo-absorbing layer is connected to an electronic detection unit supplying a primary electronic signal. The device also includes an electronic analyzing unit for analyzing the primary signals and configured in such a manner as to determine the spectral distribution of the original radiation.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: April 10, 2012
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Pascale Parrein, Pierre Gidon
  • Patent number: 8154731
    Abstract: The present invention offers an alternative strategy for the correlation of interference information to chemical and/or physical properties of a sample. This strategy can be implemented in a method and a system, which offer substantial technical and commercial advantages over state of the art techniques based on interference spectroscopy. The invention further provides a method for standardizing an interferometer, as well as a method and a system using the standardized interferometer.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: April 10, 2012
    Assignee: Chemometec A/S
    Inventors: Börkur Arnvidarson, Hans Larsen
  • Patent number: 8147134
    Abstract: Disclosed herein are a method and an apparatus to identify alpha-emitting radionuclides and to measure absolute alpha radioactivity using a low temperature detector. A 4? metallic absorber which encloses a radioactive material containing alpha-emitting radionuclides absorbs the total alpha decay energy in the form of thermal energy. The corresponding temperature changes are measured by a low temperature detector attached to the 4? absorber with high energy resolution. The identification of alpha-emitting radionuclides is declared by comparing the measured temperature signal with characteristic decay energy of radionuclides. The absolute amount of the radionuclides is determined by counting the number of the pulses for each of the identified nuclides.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: April 3, 2012
    Assignee: Korea Research Institute of Standards and Science
    Inventors: Yong Hamb Kim, Kyoung Beom Lee, Min Kyu Lee, Sang Jun Lee
  • Patent number: 8148689
    Abstract: Disclosed are embodiments of methods and apparatus related to detection of substance(s) at a distance. For example, an apparatus can have a mount structure and an emitter mounted to the mount structure and configured to be trained on a target. The emitter can have a source configured to emit radiation and a mirror configured to direct the radiation toward the target. The apparatus can also have a collector mounted to the mount structure and configured to be trained on the target at the same time the emitter is trained on the target and concentrate collected radiation on a sensor. The apparatus can also have a detection system comprising the sensor and an interferometer configured to produce an interferogram. The processor can be configured to perform a Fourier transform on the interferogram to produce a spectrogram and analyze the spectrogram to determine presence or absence of known substances in or around the target.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: April 3, 2012
    Inventor: Stephen T. Braunheim
  • Patent number: 8148690
    Abstract: Web measurement system monitors properties of a web during manufacture without chopping measuring radiation during web measurement. A single chop is performed at each sheet edge or every nth sheet edge to measure edge temperature and edge thermal radiation for correction for Planckian radiation. Correction factors, including Planckian radiation correction factors, are derived for each point in a web profile. The measuring system also enables derivation of correction factors during operation in a single point and similar machine operating modes.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: April 3, 2012
    Assignee: ABB, Ltd.
    Inventors: Steven P. Sturm, Michael S. O'Hora, Rodney D. Maxson
  • Publication number: 20120032080
    Abstract: An optical frequency converter includes a waveguide including a core made of a nonlinear optical medium having a refractive index n1,light in a wavelength region of light, and cladding disposed so as to cover the core and made of a material whose refractive index n2,light in the wavelength region of light is lower than the refractive index n1,light, and a coupling section made of a material whose refractive index n3,THz in a wavelength region of a terahertz wave is higher than the refractive index n1,light and disposed in contact with the cladding. The coupling section is configured to couple the waveguide with a space in the wavelength region of the terahertz wave. The coupling section covers the cladding.
    Type: Application
    Filed: August 1, 2011
    Publication date: February 9, 2012
    Inventors: Yasushi Koyama, Kousuke Kajiki
  • Publication number: 20120025081
    Abstract: An infrared (IR) spectrometer (20) for IR spectroscopic investigation of a test sample (1) in a first wavenumber range WB1, comprising a sample container (1a) for the test sample (1), wherein the sample container (1a) is transparent to IR radiation in the first wavenumber range WB1, and wherein the IR spectrometer (20) comprises a measuring device for determining the temperature of the test sample (1), is characterized in that the measuring device comprises an IR sensor (2) which measures, without contact, the intensity of the IR radiation emitted by the sample container (1a), and the sample container (1a) is opaque to IR radiation in the second wavenumber range WB2. A simple and reliable measurement of the temperature of a test sample in an IR spectrometer is thereby enabled.
    Type: Application
    Filed: July 20, 2011
    Publication date: February 2, 2012
    Applicant: Bruker Optik GmbH
    Inventors: Norbert Rapp, Michael Taraschewski, Alberto Sossai
  • Patent number: 8101916
    Abstract: This patent presents a method for measuring the concentration of biodiesel in a homogeneous biodiesel-diesel oil mixture using mid infrared radiation for use as fabrication monitor, quality control, law enforcement and multi-fueled vehicles. The method is characterized by the use of mid infrared absorption measurement in the range from 1870 to 1600 cm?1 (5347.6 to 6250.0 nm) which corresponds to the carbonyl group absorption peak (C?O) that is only present in biodiesel. Both intensity and area of the carbonyl absorption peak present power law dependence with the biodiesel percentile in the biodiesel-diesel oil mixture.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: January 24, 2012
    Assignee: Instituto De Tecnologia Do Parana—Tecpar
    Inventors: Cyro Ketzer Saul, Marcelo Adriano Aliske, Wanderley Veiga
  • Patent number: 8098377
    Abstract: A cavity ring down system is optimized to precisely measure trace gases or particles in an air sample by using time sampling detection and multiple-sample averaging resulting in a high signal-to-noise ratio. In one embodiment, a cavity ring down system is programmed to measure the rise time and the fall time of the light level in an optical cavity. The cavity ring down system is programmed to integrate a plurality of sample portions during a rise time and a plurality of sample portions during a fall time (in alternate intervals) to obtain a time constant with no sample present and a time constant with sample present. The measurements are used to calculate trace gases in the air sample.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: January 17, 2012
    Inventors: James Lowell Gundersen, James McChesney Hargrove
  • Patent number: 8094294
    Abstract: The invention relates to apparatus and methods for assessing occurrence of a hazardous agent in a sample by performing multipoint spectral analysis of the sample. Methods of employing Raman spectroscopy and other spectrophotometric methods are disclosed. Devices and systems suitable for performing such multipoint methods are also disclosed.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: January 10, 2012
    Assignee: ChemImage Corporation
    Inventors: Patrick J Treado, Joseph E Demuth, Robert Schweitzer
  • Patent number: 8073639
    Abstract: A method for identifying a convolved peak is described. A plurality of spectra is obtained. A multivariate analysis technique is used to assign data points from the plurality of spectra to a plurality of groups. A peak is selected from the plurality of spectra. If the peak includes data points assigned to two or more groups of the plurality of groups, the peak is identified as a convolved peak. Principal component analysis is one multivariate analysis technique that is used to assign data points. A number of principal components are selected. A subset principal component space is created. A data point in the subset principal component space is selected. A vector is extended from the origin of the subset principal component space to the data point. One or more data points within a spatial angle around the vector are assigned to a group.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: December 6, 2011
    Assignee: DH Technologies Development Pte. Ltd.
    Inventors: Gordana Ivosev, Ronald Bonner
  • Patent number: 8064133
    Abstract: A light receiving optical system includes: a relay optical system for converging light to be measured which has been converged on an image plane of an objective optical system. The light receiving optical system has a relay optical system with a relay lens operable to be selectively switched between first and a second conjugate positions, and a first and a second light flux limiting aperture members selectively switched between the first and the second conjugate positions. The relay optical system selectively forms, on the image plane of the objective optical system, an enlarged image and a reduced image of a view angle defining aperture in the case where the relay lens is selectively switched between the first and the second conjugate positions to define an incident light flux through the view angle defining aperture by a first and a second light flux limiting apertures, respectively.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: November 22, 2011
    Assignee: Konica Minolta Sensing, Inc.
    Inventor: Kenji Imura
  • Patent number: 8063373
    Abstract: This invention relates to a compact cavity ring down spectrometer for detection and measurement of trace species in a sample gas using a tunable solid-state continuous-wave mid-infrared PPLN OPO laser or a tunable low-power solid-state continuous wave near-infrared diode laser with an algorithm for reducing the periodic noise in the voltage decay signal which subjects the data to cluster analysis or by averaging of the interquartile range of the data.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: November 22, 2011
    Assignee: The George Washington University
    Inventor: J. Houston Miller
  • Patent number: 8054463
    Abstract: In a method for measuring a composition of a sample, an illumination surface area of the sample is illuminated using a light source, and light from a plurality of emitting surface areas of the sample is received, each emitting surface area at a different location, the received light scattered by the sample. A cumulative area of the illumination surface area is greater than a cumulative area of two emitting surface areas of the plurality of emitting surface areas. For each emitting surface area, spectral content information associated with received light corresponding to that emitting surface area is determined, and composition information corresponding to a sub-surface region of the sample is determined based on the determined spectral content information. Different shapes of illumination surface areas as well as the plurality of emitting surface areas may advantageously be utilized for various specimen or sample geometries or illumination sources.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: November 8, 2011
    Assignee: The Regents of the University of Michigan
    Inventors: Michael D. Morris, William F. Finney, Matthew Schulmerich
  • Patent number: 8044354
    Abstract: In one embodiment, a method of classifying a polymer containing surface is provided including collecting one or more spectra of infrared energy reflected from the surface over a spectrum of wavelengths; performing multivariate processing at one or more wavelengths; comparing results of the multivariate processing with one or more predetermined material classification models derived from model material infrared energy spectra collected from one or more model material surfaces, the one or more model material surfaces each having a known polymer material composition; and, sorting the polymer containing surface into the proper class based on a similarity of the results of the multivariate processing at one or more wavelengths with the predetermined material classification models.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: October 25, 2011
    Assignee: The Boeing Company
    Inventors: Gregory J. Werner, Paul H. Shelley, Panagiotis E. George
  • Patent number: 8022366
    Abstract: Mid-IR spectrometer with no moving parts, which is small and compact, low power consuming, and can monitor blood sugar (glucose) and other blood and bodily fluid analytes on a continuing basis. It has many applications in the health, forensic, environmental and other areas.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: September 20, 2011
    Inventor: Frank Hartley
  • Patent number: 8017910
    Abstract: A method of predicting the stability of a hydrocarbon process stream is disclosed and claimed. The method includes obtaining samples from one or more process streams and measuring the actual stability and the near infrared spectral absorbance of those samples. A classification model is initially developed to identify sample subsets and correlation model is created using the stability and absorbance data by inserting that data into a mathematical function. Online or offline measurements are then taken from the hydrocarbon process stream, the classification model is used initially to identify the subset and corresponding correlation model is used to predict the stability of the stream.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: September 13, 2011
    Assignee: Nalco Company
    Inventor: Ron Sharpe
  • Publication number: 20110215247
    Abstract: The invention relates to a method for determining the gas quality of a sample gas mixed at least in part with biogas, having the main components CH4, CO2, N2, O2, H2, proceeding from a spectrum of the sample gas determined by means of infrared-spectroscopy measurement methods, under operating conditions, from which the mole ratios of the sample gas are determined by means of correlative methods, and converted to characteristic variables of the gas quality.
    Type: Application
    Filed: June 18, 2009
    Publication date: September 8, 2011
    Applicant: Elster GmbH
    Inventor: Joachim Kastner
  • Patent number: 8013303
    Abstract: Apparatus for remote laser-based detection of a analyte in a remote target region; comprising a reference container for housing a reference substance identical with the analyte; a laser unit which constituted to emit a laser beam of a tuneable wavelength towards the target region to be analysed and along a reference path which passes through the reference container for detecting the reference substance; a laser control means constituted to control wavelength of the laser beam during detection periods such that the laser wavelength is changed to allow detection of an optical absorption profile of the analyte during detection periods; an analytical detection unit which detects light from the target region and generates analytical signals during the detection periods, a reference detection unit which detects laser light passed through the reference container and generates reference signals during the detection periods; and an analysing means constituted to analyse the similarity of the analytical and reference s
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: September 6, 2011
    Assignee: Pergam-Suisse AG
    Inventors: Oleg Ershov, Alexey Klimov
  • Patent number: 8015088
    Abstract: A method of rewarding loyalty of a user may include providing a personal terminal to the user, detecting whether the personal terminal is within proximity of an interaction terminal, and based at least in part on the proximity of the personal terminal to the interaction terminal, providing a benefit to the user.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: September 6, 2011
    Assignee: The Coca-Cola Company
    Inventors: Anthony James Phillips, Leonard Frank Antao, Gerard E. Insolia, Haven Brock Kolls
  • Publication number: 20110204235
    Abstract: A system includes a transmitter is configured to transmit an electromagnetic signal through a sample cell (including a sample medium) to a receiver, which is configured to receive the electromagnetic signal and another electromagnetic signal for mixing therewith. Propagation paths of the signals to the transmitter and receiver include a first propagation path of the electromagnetic signal to the transmitter, and a second propagation path of the other electromagnetic signal to the receiver. The arrangement, which is located along either or each of the propagation paths of signals to the transmitter and receiver, is configured to alter the length of a respective propagation path. And the processor configured to recover an amplitude and phase of the transmitted electromagnetic signal, and calculate a complex index of refraction of the sample medium as a function of the amplitude and phase of the transmitted electromagnetic signal.
    Type: Application
    Filed: February 25, 2010
    Publication date: August 25, 2011
    Inventors: Alexander Majewski, Rene Abreu
  • Publication number: 20110208480
    Abstract: A method is provided that includes receiving and processing a sample signal scan. Processing the sample signal scan includes applying an inner-product operation on the sample signal scan and each of a plurality of eigenvectors to generate a plurality of corresponding coefficients, and subtracting the sample signal scan from a linear combination of the eigenvectors and corresponding coefficients to thereby produce a corrected sample signal scan. In this regard, the eigenvectors have been generated by decomposing a plurality of background reference signal scans according to a singular value decomposition technique. The signal scans include a plurality of electromagnetic signal measurements at a discrete set of frequencies, where each measurement has been taken by a spectrometer system passing an electromagnetic signal through a sample cell including just a base medium (for the background reference signal scans), or both a base medium and a sample medium (for the sample signal scan).
    Type: Application
    Filed: February 25, 2010
    Publication date: August 25, 2011
    Inventors: Robert Noll, Aaron Turner, Alexnder Majewski
  • Patent number: 7982189
    Abstract: A spectrometer includes: a lighting device (LSRC) configured to generate a light beam covering a wavelength band, a probe configured so that the light beam coming from the lighting device interacts with a fluid to be analyzed, and a spectrum analyzing device configured to receive the light beam after it has interacted with the fluid to be analyzed, and to provide light intensity measurements for various ranges of wavelengths. The lighting device includes several light-emitting components (1a-1c) emitting light in various ranges of wavelengths, and a mixing optical component (3) fixed onto the emitting surface of the light-emitting components (1a-1g), to combine the light flows emitted by the light-emitting components into a resulting light beam covering the wavelength band, and guide the resulting light flow to the probe.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: July 19, 2011
    Assignee: SP3H
    Inventors: Johan Fournel, Alain Lunati, Thierry Gergaud
  • Patent number: 7977636
    Abstract: A method for performing sub-micron optical spectroscopy, using a heated SPM probe and far-field collection optics is described. The enhanced emission characteristics at a sharp heated tip constitute a highly localized wideband IR source. Thus the IR absorption and emission properties of a sample surface adjacent can be observed and measured in the farfield even though the interaction region is sub-micron in scale. . . . providing spatial resolution mapping of sample composition.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: July 12, 2011
    Assignee: Anasys Instruments, Inc.
    Inventor: Markus B. Raschke
  • Publication number: 20110133090
    Abstract: Disclosed herein are methods of detecting organic materials, and more particularly, methods of detecting organic materials using terahertz spectroscopy. The method of detecting organic material using terahertz spectroscopy includes suspending organic material in a medium to form a sample; irradiating the sample with an illumination beam of electromagnetic radiation, the illumination beam having a plurality of frequencies in the range of about 100 GHz to about 2 THz; detecting radiation transmitted through and/or reflected from the sample; and, analyzing the detected radiation to identify the organic material, wherein the medium is selected from the group consisting of agar, guar gum, gellan gum, carrageenan, xantham gum, fibrous sodium pectate, and other agar substitutes.
    Type: Application
    Filed: December 9, 2009
    Publication date: June 9, 2011
    Applicant: Encore Corporation
    Inventors: Joseph R. Demers, Ronald T. Logan, JR.
  • Publication number: 20110127432
    Abstract: Non-invasive THz spectroscopic apparatus and methods are provided for detecting and/or identifying constituents such as variations in a structural entity where chemical or biological entities can reside. Position dependent scattering of THz radiation is employed to image voids and defects in the internal structure of samples, enabling the determination of contamination, spoilage or readiness of products such as wine in sealed containers.
    Type: Application
    Filed: February 10, 2011
    Publication date: June 2, 2011
    Applicant: New Jersey Institute of Technology
    Inventors: John F. Federici, Rose M. Federici
  • Patent number: 7952710
    Abstract: A box 14 having a body 13 is used with a transparent flexible bag containing a liquid such as an IV bag. First and second faces 12 are positioned relative to each other. The faces each have therewithin an end or fiber optic port 11 of a respective light path. A light source is optically coupled with the light path of the first face and a spectrometer is optically coupled with the light path of the second face. The light paths are coaxial and are disposed so that the transparent flexible bag is positionable therebetween. The spectrometer is disposed to detect an anomaly in the liquid within the transparent flexible bag, and to annunciate the anomaly to a human user. The box defines a reproducible light path length through the liquid. A caliper 29 having a body 22 may be used in spectrometric analysis of a transparent tube containing a liquid such as a syringe or an IV line. The caliper has finger pads 27 which permit opening the spring-loaded caliper as needed.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: May 31, 2011
    Assignee: Verrana LLC
    Inventors: William H. Flank, Sandra Glassman Flank, Sharon Flank, Emil Walter Ciurczak, Carl Oppedahl
  • Patent number: 7939805
    Abstract: A Fourier-Transform Infrared (FTIR) spectrometer for operation in the mid- and long-wave infrared region (about 2-15 micron wavelengths) is disclosed. The FTIR spectrometer is composed of IR-transmitting fiber and uses a broadband IR source. A fiber stretcher is provided to provide a path difference between a first path and a second path having a sample associated therewith. Stretching of the fiber provides a path difference sufficient to generate an interferogram that can subsequently be analyzed to obtain information about a sample. A method for use of the apparatus of the invention is also disclosed. The method involves stretching of an IR-transmitting fiber to create a path difference sufficient to generate an interferogram. Various aspects of these features enable the construction of compact, portable spectrometers.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: May 10, 2011
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Leslie Brandon Shaw, Jasbinder S. Sanghera, Ishwar D. Aggarwal
  • Patent number: 7936453
    Abstract: An apparatus for analyzing, identifying or imaging a target including an integrated dual laser module coupled to a pair of photoconductive switches to produce CW signals in the range of frequencies from 100 GHz to over 2 THz focused on and transmitted through or reflected from the target; and a detector for acquiring spectral information from signals received from the target and using a multi-spectral homodyne process to generate an electrical signal representative of some characteristics of the target with resolution less than 250 MHz. The photoconductive switches are activated by laser beams from the dual laser module. The lasers in the module are tuned to different frequencies and have two distinct low frequency identification tones respectively that are used in conjunction with a stable optical filter element to permit precise determination of the offset frequency of the lasers.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: May 3, 2011
    Assignee: Emcore Corporation
    Inventors: Ronald T. Logan, Jr., Joseph R. Demers, Bryon L. Kasper
  • Patent number: 7935929
    Abstract: An accessory for use with a microscope arranged to carry out ATR measurements has a support (40) which can be mounted on the moveable stage of the microscope. A mounting (100) for an ATR crystal (106) is carried on the support. The accessory includes a registration indicium which is located at a fixed position relative to the sample contacting area of the crystal. The registration indicium is preferably provided at the apex region of the crystal. The registration indicium can be used to ensure correct focussing of a sample when obtaining an image of the sample.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: May 3, 2011
    Assignee: PerkinElmer Singapore Pte Ltd.
    Inventors: Robert Alan Hoult, Ralph Lance Carter, Antonio Canas Wilkinson
  • Patent number: 7919753
    Abstract: A method of non-destructively determining the amount of ultraviolet degradation of a surface and/or paint adhesion characteristics of the surface corresponding with UV damage including determining a physical property of a composite material/surfacing film by providing a series of composite materials/surfacing films which are subjected to increasing UV light exposure to create a set of UV damage standards, collecting mid-IR spectra on those standards, performing data pre-processing and then multivariate calibration on the spectra of the composite materials/surfacing films, and using that calibration to predict the UV damage for samples in question.
    Type: Grant
    Filed: June 28, 2008
    Date of Patent: April 5, 2011
    Assignee: The Boeing Company
    Inventors: Paul H. Shelley, Greg J. Werner, Diane R. LaRiviere, Gwen M. Gross
  • Publication number: 20110068271
    Abstract: An infrared (IR) source apparatus that includes a desired infrared source element coupled to an insulating housing so to minimize overall source inefficiency at desired optical bandwidths is introduced. The insulation itself is machined or configured in a way so that the infrared source element is in contact with a designed cavity in the insulation so that the IR source image becomes the average of the insulation material and the infrared element. Such an arrangement of the present invention increases the emissivity of the IR source below about 1500 wave numbers, more often, below about 1100 wave numbers, and even more particularly, at about 1079 wave numbers. Accordingly, the combined emissivity of the infrared source and the insulation substantially enhances spectral emission and eliminates or reduces spectral artifacts from the formation of oxides on the infrared source surfaces.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 24, 2011
    Inventors: John R. IVERSON, John Magie Coffin
  • Publication number: 20110062337
    Abstract: Methods and devices relate to radiometric measurement of a thin fluid film (4) using absorption of IR radiation. At least one IR radiator (1) is directed to send signals to an IR detector (2) via a bed (3) on which the fluid film (4) is placed. The IR detector is set to receive IR radiation in a band around a characteristic absorption band of the fluid of the fluid film (4). The present invention is developed for printing presses, where the thickness of fountain solution on the printing plate and the proportion of printing ink in an emulsion of printing ink and fountain solution may be controlled.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 17, 2011
    Inventor: Leif CRONVALL
  • Patent number: 7907273
    Abstract: A system for measuring starch gelatinization in a feed production system. The system includes a feed production system configured to generate an extruded feed from a feed mixture using a combination of steam and pressure to cook the feed in an extruder, a near infrared spectrometer configured to measure a degree of starch gelatinization for the extruded feed, and a starch gelatinization measurement engine configured to generate a measurement of the degree of starch gelatinization in the extruded feed.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: March 15, 2011
    Assignee: Cargill, Incorporated
    Inventors: Mark D. Newcomb, Jason L. Shelton, Julie R. Schuette, James E. Graves
  • Publication number: 20110046489
    Abstract: A method comprising exposing a sample comprising water to near infrared (NIR) light and detecting the presence of one or more objects by measuring a Stokes shift in the emission spectra in the near infrared.
    Type: Application
    Filed: December 1, 2009
    Publication date: February 24, 2011
    Inventors: Hirak Kumar PATRA, Anjan Kumar Dasgupta
  • Publication number: 20110046916
    Abstract: A position sensitive pyrometer includes a sensor.
    Type: Application
    Filed: August 20, 2010
    Publication date: February 24, 2011
    Applicant: First Solar, Inc.
    Inventors: Ming Lun Yu, Markus E. Beck
  • Publication number: 20110035158
    Abstract: Methods of and devices for detecting a measurable characteristic of the gas sample. The methods and devices are able to detect a value of or a change of measurable characteristic (e.g., such as chemical concentrations), a change of chemical compositions and/or biological responses of a living organism that are induced by a stressor. The biological responses are able to include cellular stress, damage, and immune responses. The stressor is able to include an exposure to ionizing radiation. The effects of the stressors are able to be monitored in terms of changes in the chemical concentrations and chemical compositions in an exhaled breath. The chemicals are able to function as bio-markers. The chemicals that are to be monitored are able to include nitric oxide, carbon monoxide, carbon dioxide, ethane, and other molecules related to specific disease resulting from the stressor.
    Type: Application
    Filed: August 6, 2010
    Publication date: February 10, 2011
    Inventors: Peter Theophilos Banos, Robert Alfred Burmeister
  • Publication number: 20110028808
    Abstract: An object of the present invention is to provide apparatuses for examining/diagnosing clinical disease of cancer, systemic lupus erythematosus (SLE), or antiphospholipid antibody syndrome. Blood, blood-derived component, urine, sweat, nail, skin, or hair is irradiated with light having a wavelength of 400 to 2,500 nm or a part of the range, of which the reflection light, the transmission light, or the transmission reflection light is then detected to give spectroscopic absorbance data, and afterward a previously prepared analysis model is used to analyze the absorbance over the whole wavelengths or at a specific wavelength for the measurement to allow the achievement of the object.
    Type: Application
    Filed: December 31, 2008
    Publication date: February 3, 2011
    Applicants: Fatigue Science Laboratory Inc., Osaka University
    Inventors: Hirohiko Kuratsune, Akikazu Sakudo, Junzo Nojima, Kazuyoshi Ikuta, Yasuyoshi Watanabe, Yukiko Kato, Takanori Kobayashi, Seiki Tajima
  • Patent number: 7868296
    Abstract: A spectroscopic method and spectroscopy system therefrom for analyzing samples. A sample includes a first chemical component that has a characteristic first absorption peak is provided. The sample is irradiated in a measurement waveband proximate to the first absorption peak, and at a first and a second reference waveband where the first chemical component lacks characteristic absorption features. Reflected or transmitted detection data is obtained including a measured power proximate to the first absorption peak and first and second reference powers at the reference wavebands. A plurality of different waveband ratios are evaluated using pairs of detection data to generate a plurality of measured waveband ratio values.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: January 11, 2011
    Assignee: Honeywell ASCA Inc.
    Inventors: Frank M. Haran, Reena Meijer-Drees, Sebastien Tixier
  • Patent number: 7868295
    Abstract: A chemical and biological sensor system (200) includes at least one micro-cantilever sensing element (202) and a mechanism for collecting aerosol, liquid, and solid particles, and depositing the particles as a film layer (146) on a stack (140) formed with the cantilever. The deposited particles include chemical or biological species to be analyzed. A polarized light (242) illuminates the stack (140) at a grazing incidence angle to a specific wavelength of light. The light is polarized in a plane parallel to the stack (140). The polarized light (242) heats the cantilever with different wavelengths of the light spectrum. Readout electronics detect movement of the cantilever (202) as a result of heat transfer from the light and provide spectral data signals corresponding to the detected movement. A spectral analyzer (840) analyzes the spectral data signals, compares spectral images of the materials present to spectral images of known materials, and identifies one or more chemical or biological species present.
    Type: Grant
    Filed: January 5, 2008
    Date of Patent: January 11, 2011
    Assignee: Innovative American Technology, Inc.
    Inventors: David L. Frank, Rodney L. Clark
  • Publication number: 20110001047
    Abstract: A method of predicting thermal or chemical effect in a painted or coated composite material includes generating a calibration model, providing a composite material having a coating layer, irradiating the coating layer with infrared energy, detecting infrared energy reflected from the coating layer and predicting a thermal or chemical history of the coating layer using the calibration model and the infrared energy reflected from the coating layer.
    Type: Application
    Filed: January 8, 2010
    Publication date: January 6, 2011
    Inventors: Paul H. Shelley, Gregory J. Werner, Paul G. Vahey