公开(公告)号：US06639667B1

公开(公告)日：2003-10-28

申请号：US09762820

申请日：2001-07-18

Applicant: Bernard Gilbert ,  Trygve Foosnæs ,  Reidar Huglen

Inventor： Bernard Gilbert ,  Trygve Foosnæs ,  Reidar Huglen

IPC: G01J344

CPC classification number: C25C3/06

Abstract: Method for determining chemical constituents in an electrolysis cell for the production of metal, in particular aluminum, involving the use of light spectroscopy such as Raman spectroscopy that analyses the light emitted from the cell constituents and represents the light as a spectrum, wherein the analysis is performed directly in the cell while the cell is in its production mode, whereby the spectrum is analysed on the basis of reference spectrums based on known compositions, to determine chemical constituents in the cell. Also provided is an apparatus for performing this method.

Abstract translation: 用于确定用于生产金属，特别是铝的电解池中的化学成分的方法，涉及使用诸如拉曼光谱法的光谱，其分析从细胞成分发出的光并将光表示为光谱，其中分析是 在细胞处于其生产模式时直接在细胞中进行，由此基于已知组合物的参考光谱分析光谱，以确定细胞中的化学成分。 还提供了一种用于执行该方法的装置。

公开(公告)号：US06590647B2

公开(公告)日：2003-07-08

申请号：US09848892

申请日：2001-05-04

Applicant: Kenneth E. Stephenson

Inventor： Kenneth E. Stephenson

IPC: G01J344

CPC classification number: G01N21/658 ,  G01J3/44

Abstract: A method of and apparatus for determining a physical property of a material. The method includes: attaching nanoparticles to a substrate; positioning the substrate near the material; illuminating the nanoparticles with photons having wavelengths that stimulate surface enhanced Raman emissions; detecting photons emitted as a result of the illumination; and determining said physical property of said material using said detected photons. The apparatus includes: a substrate; nanoparticles attached to the substrate; a light source, connected to the substrate, for illuminating the nanoparticles with photons having wavelengths that stimulate surface enhanced Raman emissions; a photodetector, connected to the substrate, for detecting photons emitted as a result of illumination of the nanoparticles; and a processor, connected to the photodetector, for determining a property of material near the nanoparticles from the detected photons. The inventive method and apparatus are particularly adapted for use in connection with hydrocarbon exploration and production activities.

公开(公告)号：US06486948B1

公开(公告)日：2002-11-26

申请号：US09659300

申请日：2000-09-12

Applicant: Haishan Zeng

Inventor： Haishan Zeng

IPC: G01J344

CPC classification number: G01J3/1838 ,  G01J3/0221 ,  G01J3/04 ,  G01J3/44 ,  G01J2003/2866

Abstract: Systems and methods for rapid Raman spectroscopy. The speed is improved by providing light from a sample to a light-dispersive element, such as a holographic grating, in a pattern that inversely complements distortion caused by the grating. For example, if the grating imparts a curve to the spectral lines emanating from the grating, then the light is inserted into the grating in a curve in the opposite direction. Also calibration light guides able to transmit a known, or standard, light to the detection or spectroscopy system. The calibration light guide can be useful both with traditional light transmission guides and with the light transmission guides of the present invention.

Abstract translation: 快速拉曼光谱的系统和方法。 通过将样品中的光提供给诸如全息光栅的光分散元件，以与由光栅引起的失真相反的图案来提高速度。 例如，如果光栅对从光栅发出的光谱线施加曲线，则将光以相反方向的曲线插入光栅。 还有校准光导能够将已知或标准的光传输到检测或光谱系统。 校准光导可以与传统的光传输引导件和本发明的光传输引导件一起使用。

公开(公告)号：US06473174B1

公开(公告)日：2002-10-29

申请号：US09653435

申请日：2000-09-01

Applicant: Lynette K. Ballast ,  Mark R. Breen

Inventor： Lynette K. Ballast ,  Mark R. Breen

IPC: G01J344

CPC classification number: G01N21/65 ,  G01N2021/653

Abstract: Various methods of inspecting a workpiece for residue are provided. In one aspect, a method of inspecting a workpiece for carbon residue includes directing coherent radiation at the workpiece to produce Rayleigh scattered radiation and Raman scattered radiation. The Rayleigh scattered radiation is filtered out. A spectrum for the Raman scattered radiation is detected and compared with a known Raman spectrum for carbon. Wafers may be inspected for residues, such as graphitic carbon, in a non-destructive way and without pump down. Deficiencies in resist stripping may be quickly identified.

Abstract translation: 提供了检查残留物的各种方法。 一方面，用于检测碳残渣的工件的方法包括在工件处引导相干辐射以产生瑞利散射辐射和拉曼散射辐射。 瑞利散射辐射被滤除。 检测拉曼散射辐射的光谱，并与已知的碳拉曼光谱进行比较。 可以以非破坏性方式检查晶片的残留物，例如石墨碳，而不需要抽空。 抗蚀剂剥离的缺陷可能会被快速识别。

公开(公告)号：US06373567B1

公开(公告)日：2002-04-16

申请号：US09466295

申请日：1999-12-17

Applicant: Kent Lawson Wise ,  John Brittain Cooper ,  Christian Lee Schoen

Inventor： Kent Lawson Wise ,  John Brittain Cooper ,  Christian Lee Schoen

IPC: G01J344

CPC classification number: G01J3/44 ,  G01J3/0205 ,  G01J3/1838

Abstract: A compact dispersive near-IR Raman spectrometer is disclosed. The Raman spectrometer consists of a diode pumped solid state (DPSS) laser emitting light at 1064 nm and an InGaAs diode array detector. The DPSS laser is used as an excitation source for stimulating Raman scattering of the sample being analyzed. The Raman signal is collected and filtered to remove the DPSS laser Rayleigh scatter. The collected and filtered Raman signal is dispersed using a volume holographic grating. The dispersed Raman signal is detected using a linear InGaAs diode array detector that is sensitive to light in the wavelength region 900-1700 nm. The dispersive near-IR Raman spectrometer is rugged and compact and enables the collection of high signal-to-noise Raman spectra with high wavelength stability and without the presence of interfering fluorescent backgrounds.

Abstract translation: 公开了紧凑型分散近红外拉曼光谱仪。 拉曼光谱仪由1064nm发射光的二极管泵浦固态（DPSS）激光器和InGaAs二极管阵列检测器组成。 DPSS激光器用作激发源，用于刺激正在分析的样品的拉曼散射。 收集和过滤拉曼信号以去除DPSS激光瑞利散射。 收集和过滤的拉曼信号使用体积全息光栅进行分散。 使用对波长范围900-1700nm的光敏感的线性InGaAs二极管阵列检测器来检测分散的拉曼信号。 色散近红外线拉曼光谱仪坚固耐用，可以收集高信噪比的拉曼光谱，具有高波长稳定性和无干扰荧光背景。

公开(公告)号：US06353476B1

公开(公告)日：2002-03-05

申请号：US09603547

申请日：2000-06-26

Applicant: Fritz Schreyer Allen ,  Danny S. Butterfield

Inventor： Fritz Schreyer Allen ,  Danny S. Butterfield

IPC: G01J344

CPC classification number: G01N21/65 ,  G01J3/44 ,  G01J3/443 ,  G01N21/47 ,  G01N21/64

Abstract: An apparatus and method for measuring an emission. A source of all excitation beam is provided. In the path of the excitation beam, means are located for providing one or more daughter beams. The one or more daughter beams are directed at one or more substances. The substances may include one or more known qualified substances, and one or more known unqualified substances. The substances have substantially similar characterizations. Positionable adjacent to the one or more substances are means for generating one or more emission beams. A spectral analysis device is provided for collecting spectral measurements substantially simultaneously from the one or more emission beams. Means are provided for subsequently comparing the spectral measurements from the one or more substances.

Abstract translation: 用于测量发射的装置和方法。 提供所有激发光束的源。 在激励光束的路径中，设置用于提供一个或多个子光束的装置。 一个或多个子束被引导到一种或多种物质。 物质可以包括一种或多种已知的合格物质和一种或多种已知的不合格物质。 这些物质具有基本相似的特征。 可邻近于一种或多种物质定位的是用于产生一个或多个发射光束的装置。 提供了一种光谱分析装置，用于从一个或多个发射光束基本上同时收集光谱测量。 提供了用于随后比较来自一种或多种物质的光谱测量值的方法。

公开(公告)号：US06333784B1

公开(公告)日：2001-12-25

申请号：US09459536

申请日：1999-12-13

Applicant: Raymond J. Blasi ,  David A. Allison

Inventor： Raymond J. Blasi ,  David A. Allison

IPC: G01J344

CPC classification number: G01N23/2273 ,  G01J3/44 ,  G01N21/65

Abstract: An analytical instrument for performing ESCA and Raman measurements, having a vacuum chamber and a sample holder. The ESCA/Raman system enables the rapid acquisition of the molecular information from both homogeneous and heterogeneous corrosion films and deposits on metal specimens.

Abstract translation: 用于执行ESCA和拉曼测量的分析仪器，具有真空室和样品架。 ESCA /拉曼系统能够从均质和非均相腐蚀膜以及金属样品上的沉积物中快速获取分子信息。

公开(公告)号：US06781690B2

公开(公告)日：2004-08-24

申请号：US09797609

申请日：2001-03-01

Applicant: Robert L. Armstrong ,  Vladimir M. Shalaev ,  Harold V. Smith

Inventor： Robert L. Armstrong ,  Vladimir M. Shalaev ,  Harold V. Smith

IPC: G01J344

CPC classification number: G01N21/658 ,  B82Y10/00 ,  B82Y20/00 ,  G02F1/353 ,  G02F1/3534 ,  G02F1/3536 ,  G02F1/3538 ,  G02F1/355 ,  G02F1/37 ,  G02F1/39 ,  G02F2202/36 ,  G02F2203/15 ,  G11B7/00453 ,  H01S3/0602 ,  H01S3/30

Abstract: An optical sensing enhancing material (and corresponding method of making) comprising: a medium, the medium comprising a plurality of aggregated nanoparticles comprising fractals; and a microcavity, wherein the medium is located in a vicinity of the microcavity. Also an optical sensor and sensing method comprising: providing a doped medium, the medium comprising a plurality of aggregated nanoparticles comprising fractals, with the material; locating the doped medium in the vicinity of a microcavity; exciting the doped medium with a light source; and detecting light reflected from the doped medium.

Abstract translation: 一种光学感测增强材料（和相应的制备方法），包括：介质，所述介质包含多个包含分形的聚集的纳米颗粒; 和微腔，其中介质位于微腔附近。 还有一种光学传感器和感测方法，包括：提供掺杂介质，所述介质包含多个包含分形的聚集的纳米颗粒与所述材料; 将掺杂介质定位在微腔附近; 用光源激发掺杂介质; 以及检测从掺杂介质反射的光。

公开(公告)号：US06774992B1

公开(公告)日：2004-08-10

申请号：US09499450

申请日：2000-02-07

Applicant: Theodore M. Garver ,  Hongqi Yuan

Inventor： Theodore M. Garver ,  Hongqi Yuan

IPC: G01J344

CPC classification number: G01N21/33 ,  D21C9/1052

Abstract: The invention relates to the use of ratios, products and non-linear functions of adsorption, emission or scattering of light as variables in standard regression and chemometric techniques to predict a characteristic or property of a solid or liquid. The use of one or more non-linear functions within a relationship between measured spectral properties and characteristic properties of solutions and solids provides an improved means to determine a property when the intensities represent or relate to components that are colinear or interelated due to restraints associated with composition, chemical processes, or molecular structure. The invention relates to the use of ratios of Raman peak intensities to predict the properties of a solution or a solid such as pulp that is processed with the solution. The intensity of the Raman shifted light is used to create Raman peak intensity ratios. These Raman intensities are related to the concentration of species dissolved in the liquid. The Raman spectra are baseline corrected and the scattering from a water reference is subtracted before extraction of intensities for Raman peak intensity ratios. The Raman scattering intensities provide a good measure of the concentration of small, oxygenated molecules. The potential of an oxidative reductive process is conveniently determined using Raman peak intensity ratios. Relevant small molecules and complex ions in the pulp and paper industry include SO42−, SO32−, H2O2, ClO2, HClO3, silicates, acetic acid, HClO3, Chlorate ClO3−; Chlorous Acid HClO2, Chlorite ClO2−, Hypochlorous Acid HClO. Hypochlorite ClO−, phosphate, nitrate, nitrites. The method may also be used to determine a property related to the relative size, degree of polymerization, branching or network formation, of complexing or polymerized species. The method may also be used to measure large molecules such as hemicellulose, extractives and pectic substances.

公开(公告)号：US06765668B2

公开(公告)日：2004-07-20

申请号：US10339807

申请日：2003-01-10

Applicant: Charles W. Gardner, Jr. ,  John S. Maier ,  Matthew P. Nelson ,  Robert C. Schweitzer ,  Patrick J. Treado ,  G. Steven Vanni ,  Juliane Wolfe

Inventor： Charles W. Gardner, Jr. ,  John S. Maier ,  Matthew P. Nelson ,  Robert C. Schweitzer ,  Patrick J. Treado ,  G. Steven Vanni ,  Juliane Wolfe

IPC: G01J344

CPC classification number: G01N21/6486 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/2823 ,  G01J3/44 ,  G01N21/31 ,  G01N21/33 ,  G01N21/359 ,  G01N21/645 ,  G01N21/6456 ,  G01N21/6458 ,  G01N21/65 ,  G01N2021/1736 ,  G01N2021/6421 ,  G01N2021/6423 ,  G01N2021/656

Abstract: Pathogenic microorganisms are detected and classified by spectral imaging of the Raman light scattered by the organisms.