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| Number | Title | Issue Date |
| 8081308 | Detecting chemical and biological impurities by nano-structure based spectral sensing A method is disclosed for providing quality assurance in an industrial process. The method includes obtaining a manufacturing material from the industrial process, allowing the manufacturing material to contact with a nano-scale surface, which allows the harmful sub... | 12/20/2011 |
| 7333204 | Method and device for analysing a gas likely to contain particles or suspended aerosols The present method uses a spectrophotometric and/or ionisation detection device in which the gas to be analyzed and illuminated by a light source emitting in a range of wavelengths distinct from the one used for spectrophotometry so as to carry out a nephelometric a... | 02/19/2008 |
| 7271898 | Method and system for remote sensing of optical instruments and analysis thereof A sensor is provided for analyzing an object at a focal point of a lens. The sensor includes a focused radiant energy source directed at the lens. The focused radiant energy source transmits a first beam of energy to the lens, vaporizing a portion of the object at t... | 09/18/2007 |
| 7264775 | Igniter assembly An igniter assembly for a pulsed flame photometric detector having a filament comprising a resistive heating wire between about 0.08 millimeter and about 0.40 millimeter in diameter wound into a coil having an inner diameter between about 0.40 millimeter and about 3... | 09/04/2007 |
| 7265343 | Apparatus and method for calibration of an optoelectronic sensor and for mensuration of features on a substrate The invention is based on an apparatus and a method for calibration of an optoelectronic sensor (3) that at least intermittently also receives UV light. A first response characteristic of the sensor (3) is ascertained by illuminating the sensor (3 | 09/04/2007 |
| 7193705 | Method for determining atomic isotope masses A method for determining atomic isotope masses in mass spectrometry, atomic isotope ratios being determined from molecular isotope ratios measured by means of an isotope mass spectrometer—ion correction, the determination of the atomic ratios being carried out by ... | 03/20/2007 |
| 7170596 | Atomic absorption spectrophotometer with a background correcting function An atomic absorption spectrophotometer including a self reverse type hollow cathode lamp and a photomultiplier tube further includes a preliminary tester for measuring a strength of a signal L when a smaller current is supplied to the hollow cathode lamp and a stren... | 01/30/2007 |
| 7167240 | Carbon black sampling for particle surface area measurement using laser-induced incandescence and reactor process control based thereon Disclosed is a method for in-situ sampling and measuring particulate fineness in a process stream, comprising (a) sampling particles in-situ from a process stream, (b) adjusting the sample to conditions suitable for LII, (c) measuring the fineness using LII, and (d)... | 01/23/2007 |
| 7167238 | Atom absorption spectroscopy method and atom absorption spectrometer Atom absorption spectroscopy method generates at least one first beam of monochromatic radiation at a certain wavelength. Radiation is separated into a test beam and a reference beam, and only the test beam is led through a test area. Subsequently, both beams pass t... | 01/23/2007 |
| 7052914 | Automated method for examining catalytic and spectroscopic properties of the components of combinatorial libraries The invention relates to an automated method for carrying out reactions with high spatial resolution on libraries of different materials and for analysis of the products obtained using a simple robot system and an analyzer, for example a mass spectrometer. ... | 05/30/2006 |
| 7050165 | Atomic absorption spectrophotometer A main unit, a lamp chamber, a graphite furnace analyzing section, a flame analyzing section, and a flame gas controller are sequentially placed from right to left. An autosampler is placed on the top of the lamp chamber. A housing section for a transformer and a po... | 05/23/2006 |
| 7030980 | Diode pumped intracavity laser particle counter with improved reliability and reduced noise A fluid particle counter comprising an intracavity diode pumped solid state laser having a solid state lasing material having a non-reflective coating and a concave mirror having a reflective coating, with the coatings isolated from the sample flow by Brewster windo... | 04/18/2006 |
| 7012702 | Measuring apparatus A width measuring apparatus is provided with a control unit, an imaging system and a spectroscopic unit. The control unit performs image processing (edge detection processing) on image data obtained by imaging an end of a substrate thereby detecting the position of ... | 03/14/2006 |
| 7001526 | Optical isomer separation method Methods for separation of two optical isomers in a racemate into its constituent isomers by statistical means are described, whereby the saturated racemate solution is first allotted into small samples by means of microfluidic or inkjet techniques to obtain small sa... | 02/21/2006 |
| 6977725 | Atom absorption spectroscopy method and atom absorption spectrometer Atom absorption spectroscopy method generates at least one first beam of monochromatic radiation at a certain wavelength. Radiation is separated into a test beam and a reference beam, and only the test beam is led through a test area. Subsequently, both beams pass t... | 12/20/2005 |
| 6959248 | Real-time detection method and system for identifying individual aerosol particles A method and system of identifying individual aerosol particles in real time. Sample aerosol particles are compared against and identified with substantially matching known particle types by producing positive and negative test spectra of an individual aerosol parti... | 10/25/2005 |
| 6922238 | Self-tuning pulse flame photometric detector system and associated method of self-tuning A system and method for tuning a pulsed-flame photometric detector including providing a carrier gas within a predetermined gas flow range to the pulsed-flame photometric detector, providing at least one combustible fuel to the pulsed-flame photometric detector, app... | 07/26/2005 |
| 6914673 | Safety apparatus for an atomic absorption spectrometer burner A burner assembly and a gas box for an atomic absorption spectrometer are disclosed. The burner assembly has a spray chamber (12) for receiving oxygen, fuel and sample material and a burner (11) located on the spray chamber for receiving the mixture so... | 07/05/2005 |
| 6891605 | Multimode sample introduction system An apparatus for determining one or more elements or compounds in a laboratory sample, and for simultaneously performing both vapor generation and nebulization in one device, is disclosed. The apparatus comprises an enclosed cyclonic spray chamber with two integrall... | 05/10/2005 |
| 6829048 | Flame atomization device A flame atomization device, especially for an atom absorption spectrometer, is disclosed. The flame atomization device includes at least one mixer chamber and an atomizer leading into the mixer chamber, and a burner head mounted on the mixer chamber's burner connect... | 12/07/2004 |
| 6809820 | Small particle analysis by laser induced incandescence The method and apparatus of laser-induced incandescence (LII) to analyze characteristics of submicron-sized particles are described. LII is recognized as a good tool for determining the characteristics of small particles in a gas, e.g., volume fraction, particle siz... | 10/26/2004 |
| 6762834 | Element analyzer An element analyzer D comprises a combustion section 1 for burning a sample S, a sample injection member 2 for injecting the sample S into the combustion section 1, and a detection section 29 for measuring a gasified sample formed by burn... | 07/13/2004 |
| 6519030 | Flame photometer detector A flame photometer detector is described which uses flame emission spectroscopy as the detection method, computer control and data acquisition, pulsed sampling and a rotating reference filter wheel to eliminate the effects of background chemical species. ... | 02/11/2003 |
| 6493081 | Flame-type atomic absorption spectrophotometer A flame-type atomic absorption spectrophotometer forms a flame by igniting a mixture of a fuel gas and a first combustion support gas such as air and then the first combustion support gas is replaced by a second combustion support gas such as nitrous oxid... | 12/10/2002 |
| 6222626 | Atomic absorption spectrometer The invention relates to an atomic absorption spectrometer, comprising a measuring light path leading from at least one light source emitting line radiation corresponding to at least one element to be detected, through an atomization means for atomizing a... | 04/24/2001 |
| 6205841 | Gas chromatograph Mass flow controllers are respectively placed in the middle of a hydrogen gas tube and air tube connected to a FPD. The flow controllers are controlled to supply hydrogen and oxygen from the nozzle to achieve the optimum mixture rate of hydrogen and oxyge... | 03/27/2001 |
| 6141957 | Flame detector for combustor In a starter combustor of a pressurized fluidized bed combined cycle power system, disorder of a flame detecting device due to ash accumulation is prevented. A fuel nozzle (33) of the starter combustor is provided so as to be directed to an inner cylinder... | 11/07/2000 |
| 6008895 | Stoichiometric ratio measuring device In order to provide a measuring device for determining stoichiometric ratios when burning hydrocarbons by means of which stoichiometric ratios can be determined easily and reliably when burning hydrocarbons, it is proposed that a sensor be provided to det... | 12/28/1999 |
| 5986757 | Correction of spectral interferences arising from CN emission in continuous air monitoring using inductively coupled plasma atomic emission spectroscopy Introduction of sample stream air into argon inductively coupled plasma permits continuous monitoring of hazardous air pollutant metals in combustion flue gases. In addition to entrained particulates, various molecular components of flue gas are in the pl... | 11/16/1999 |
| 5920388 | Small particle characteristic determination Small particle identification is disclosed. A high intensity light source provides light at a sensing region for contact with small particles at the sensing region to cause resulting light that includes scattered light and emitted light due to heating of ... | 07/06/1999 |
| 5854676 | Method and device for continuous analysis of the composition of a gaseous atmosphere containing particles of material in suspension A device for continuous analysis of the composition of a gaseous atmosphere containing particles of material in suspension includes a burner equipped with a prism; an intensifier which produces an intensified image of the spectrum produced by the dispersi... | 12/29/1998 |
| 5818580 | Simultaneous multisample analysis and apparatus therefor Analytical apparatus and methods for processing multiple samples simultaneously. Radiation such as laser light desirably including plural wavelengths is directed through multiple samples simultaneously, as by directing a beam of radiation along a single p... | 10/06/1998 |
| 5801827 | Analysis device using chemical combustion flame In an analysis device, an auxiliary gas supplied from a compressor 1 is introduced from an auxiliary gas inlet 3 via a pipe 2 to a burner through a pressure regulator 5, a pressur meter 6, a pressure switch 7 and a connecting joint 8. On the other hand, a... | 09/01/1998 |
| 5786887 | Atomic absorption spectrophotometer and atomic absorption spectrochemical analysis A light beam emitted by a hollow cathode lamp is concentrated on a central portion of an electrothermal sample atomizing apparatus by a concave mirror. The light concentrated on the central portion of the electrothermal sample atomizing apparatus is furth... | 07/28/1998 |
| 5783445 | Methods and apparatus for isotopic analysis The isotopic composition of a multiatomic isotope-bearing species such as CO2 in an analyte is measured by maintaining the analyte in a condition such that isotope-bearing species are present in an excited state and directing light at wavelengt... | 07/21/1998 |
| 5784153 | Method for detecting cause of abnormal portion present on surface of steel product A method for detecting a cause of an abnormal portion present on a surface of a steel product, which comprises the steps of: condensing a pulsed laser beam, irradiating the pulsed laser beam thus condensed onto an abnormal portion present on a surface of ... | 07/21/1998 |
| 5708507 | Temperature resolved molecular emission spectroscopy of materials System and method for temperature resolved molecular emission spectroscopy of solid, liquid or gaseous materials are described wherein a sample is vaporized and decomposed, and the vaporous sample is transported into a combustion flame; a spectrum of inte... | 01/13/1998 |
| 5696378 | High accuracy determination of chlorine content by isotope dilution flame infrared emission spectrometry (ID-FIRE) A method and apparatus for quantitatively determining chlorine content and fractional abundance of chlorine isotopes in unknown samples. When using this method and apparatus to determine chlorine content, isotope dilution principles may be employed. Chlor... | 12/09/1997 |
| 5646727 | Peristaltic pump A peristaltic pump comprises a rotatable drum 2 having rollers 5 or cams 5' for squashing a flexible tube 9 against a profiled surface 10 of a presser plate 7. Tube 9 is mounted between supports 14 and 15 on presser plate 7 and is automatically movable be... | 07/08/1997 |
| 5638166 | Apparatus and method for rapid detection of explosives residue from the deflagration signature thereof Apparatus and method for rapid detection of explosives residue from the deflagration signature thereof. A property inherent to most explosives is their stickiness, resulting in a strong tendency of explosive particulate to contaminate the environment of a... | 06/10/1997 |
