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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 11786. Отображено 100.
09-11-2021 дата публикации

Устройство для анализа содержания аэрозолей и паров углеводородов при выбросе топливных жидкостей в атмосферу

Номер: RU0000207645U1
Автор: Александр Васильевич Загнитько
Принадлежит: Федеральное государственное бюджетное учреждение "Национальный исследовательский центр "Курчатовский институт"

Полезная модель относится к области измерительной техники и может быть использована для одновременного анализа содержания аэрозолей и паров углеводородов при выбросе топливных жидкостей (керосин, мазут, сжиженный природный газ (СПГ), нефть и т.п.) в атмосферу, экологического мониторинга окружающей среды и предупреждения техногенных аварий. Техническим результатом является унификация конструкции устройства и расширение его функциональных возможностей путем уменьшения фона измерительных каналов анализа аэрозолей, обусловленного загрязнением оптических линз дисперсным осадком, вследствие осаждения аэрозольных частиц за счет инерции, зацепления и турбулентной диффузии на их поверхность при длительном анализе высококонцентрированных аэрозолей, что позволяет осуществлять их анализ с меньшей ошибкой измерения их оптической плотности и концентрации в течение большего временного интервала по сравнению с устройством по прототипу, в котором существенное изменение фона может привести к его неработоспособности. Для его достижения предложено устройство для анализа содержания аэрозолей и паров углеводородов при выбросе топливных жидкостей в атмосферу, содержащее блок его подвески, два параллельных и скрепленных прямоугольных швеллера с входными прямоугольными отверстиями для одновременного течения потока аэрозолей и паров углеводородов через измерительные каналы их анализа, два полупроводниковых лазера и два фотодиода с оптическими линзами и с защитными от аэрозолей цилиндрическими трубками, установленные соосно на внутренней поверхности прямоугольных швеллеров, электронный блок, сепаратор грубодисперсных капель, установленный перед прямоугольным отверстием для течения потока аэрозолей и паров углеводородов, и состоящий из прямоугольного канала постоянного сечения с расположенным в нем пористым цилиндром с поперечным обтеканием потоком аэрозолей и паров углеводородов, оптический инфракрасный газоанализатор с аэрозольным фильтром, установленные внутри прямоугольного швеллера на ...

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Номер записи: 1
31-05-2012 дата публикации

Measuring systems for measuring absorption or scattering at different wavelengths

Номер: US20120133935A1
Автор: Ralf Bernhard
Принадлежит: Endress and Hauser Conducta Gesellschaft fuer Mess und Regeltechnik mbH and Co KG

A measuring system for measuring absorption or scattering of a medium at a plurality of different wavelengths, whereby the measurements for the different wavelengths are performable as simultaneously and as accurately as possible. The measuring system comprises: a measuring chamber; a transmitting unit, which sends light of its respective wavelength into the measuring chamber; a control, which operates each light source with a different time modulation of transmission intensity for each wavelength; a detector for measuring a total radiation intensity. The total radiation intensity corresponds to a superpositioning of each intensity portion striking the detector for each wavelength; and a signal processing system, which determines for each of the wavelengths the associated intensity portion based on the total radiation intensity measured by detector and the modulations.

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Номер записи: 2
07-06-2012 дата публикации

Apparatus And Method For Non-Intrusive Assessment Of Gas In Packages

Номер: US20120140229A1
Автор: Anders Johnsson, Annika Olsson, Märta LEWANDER, Sune Svanberg
Принадлежит: GasPorOx AB

A method and apparatus are disclosed for assessment of a sealed package. Light is emitted from a narrow-band laser source towards said package from outside of said package. An absorption signal of said light scattered in said package is measured, wherein said absorption is caused by said at least one gas when said light is scattered and travels in said sealed package. Measuring is made outside of said package, whereby said assessment is non-intrusive with regard to said package. It is determined if a deviation exists from a predetermined, expected gas composition and/or concentration of said at least one gas within said sealed package based on said measured absorption signal. Thus sealing of said package for said gas is detected.

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Номер записи: 3
21-06-2012 дата публикации

Methods and systems for remote detection of gases

Номер: US20120153155A1
Автор: Timothy J. Johnson
Принадлежит: Battelle Memorial Institute Inc

Novel systems and methods for remotely detecting at least one constituent of a gas via infrared detection are provided. A system includes at least one extended source of broadband infrared radiation and a spectrally sensitive receiver positioned remotely from the source. The source and the receiver are oriented such that a surface of the source is in the field of view of the receiver. The source includes a heating component thermally coupled to the surface, and the heating component is configured to heat the surface to a temperature above ambient temperature. The receiver is operable to collect spectral infrared absorption data representative of a gas present between the source and the receiver. The invention advantageously overcomes significant difficulties associated with active infrared detection techniques known in the art, and provides an infrared detection technique with a much greater sensitivity than passive infrared detection techniques known in the art.

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Номер записи: 4
31-01-2013 дата публикации

Gas sensor with radiation guide

Номер: US20130026369A1
Автор: Calum John Macgregor, Desmond Robert Gibson, Ewan MacKinnon Waddell
Принадлежит: Gas Sensing Solutions Ltd

An optical absorption gas sensor includes a radiation source, detector and a radiation guide. The radiation source and detector are close together and in thermal communication. The radiation guide has a rectangular cross section and curves in a first sense, around an axis parallel to the major dimension of the rectangular cross section, and then in a second opposite sense, and again in the first sense. A relatively long path for radiation is provided in a compact device, without the attenuation of radiation which would occur if the radiation guide did not have a rectangular cross section and curved only around an axis parallel to the major dimension of the rectangular cross section. A reference measurement can be obtained by mounting a reference radiation source behind a translucent measurement radiation source and directing radiation from the reference radiation source through the measurement radiation source. Radiation from a reference radiation source may be directed around the measurement reference source. Measurement and reference signals can be obtained by using a light emitting diode to generate radiation which is detected by a photodiode, in a first operating mode, and driving the photodiode to generate radiation having a different emission spectrum while detecting the resulting radiation using the light emitting diode, in a second operating mode. An optical absorption gas sensor may be manufactured by abutting two or more L-shaped radiation guide portions to form a radiation guide. The radiation guide has an interior surface operable to reflect radiation emitted by the radiation source of the optical absorption gas sensor.

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Номер записи: 5
31-01-2013 дата публикации

Multiple Optical Beam Folding Apparatus and Method

Номер: US20130027793A1
Автор: Alan B. Marchant, Erik M. Stromberg, James C. Peterson
Принадлежит: Utah State University Research Foundation USURF

A multiple optical beam folding apparatus for directing optical energy includes two or more radiation collectors configured to direct radiant energy through two or more independent optical paths to a shared focal plan array (FPA). The radiation collectors may include one or more gas cells or vacuum cells. One or more of the two or more optical paths may include a Galilean telescope. First and second reflecting surfaces are positioned in each of the two or more independent optical paths. The first reflecting surfaces are distinct reflecting surfaces from the second reflecting surfaces and the first and second reflecting surfaces are configured to direct the radiant energy of their respective independent optical paths to the FPA. The two or more second reflecting surfaces may be distinct surfaces of a pyramidal mirror.

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Номер записи: 6
21-03-2013 дата публикации

Image forming apparatus having optical sensor system, optical sensor system having detection modules, and method thereof

Номер: US20130070248A1
Автор: Henryk Birecki, Krzysztof Nauka, Seongsik Chang
Принадлежит: Hewlett Packard Development Co LP

An optical sensor system is disclosed including a source module, a first detection module, and a second detection module. The source module includes a source housing unit having a source window member. The source module may emit a detection signal through the source window member. The first detection module and the second detection module are spaced apart from the source module.

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Номер записи: 7
11-04-2013 дата публикации

Apparatus for measuring concentration of co2 for vehicle

Номер: US20130086976A1
Автор: Hee Sang Park, Hyun Kim, Jun Mo Ku, June Kyu Park, Moo Yong Kim, Yong Chul Kim
Принадлежит: Hyundai Motor Co, Kia Motors Corp

An apparatus for measuring a concentration of CO 2 for a vehicle may include an indoor panel of a vehicle in which an air inlet is mounted, and a CO 2 sensing unit mounted in the indoor panel, including a light emitting unit, a light receiving unit, and a case surrounding the light emitting unit and the light receiving unit so as to reflect and move light on a plane, and vertically introduced with air introduced into the inlet with respect to the plane on which light moves.

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Номер записи: 8
23-05-2013 дата публикации

System and apparatus for monitoring concentration of greenhouse gas

Номер: US20130128271A1
Автор: Patrick L Smith, Steven M. Beck
Принадлежит: Aerospace Corp

One or more embodiments of the present invention pertain to a system, method, and apparatus that accurately measures concentration of a greenhouse gas in narrow atmospheric columns above multiple sites utilizing a network of autonomous low-cost beacons that turn on for short unannounced time intervals and point to a receiving satellite. For example, each beacon can activate for short time intervals and transmit a laser beam at eye-safe low transmission power levels to a receiving satellite. The receiving satellite includes a sensor configured to receive the laser beam from one or more activated beacon and generate raw greenhouse gas concentration data based on measurement of the received laser beam intensity at selected wavelengths.

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Номер записи: 9
11-07-2013 дата публикации

System, Apparatus, and Method for Tracking Atmospheric Differential Absorption

Номер: US20130176570A1
Автор: Gary L. Loper, Steven M. Beck
Принадлежит: Aerospace Corp

A system, apparatus, and method is provided to remotely measure atmospheric species using a long path differential absorption technique. In one embodiment, a source and a detector are collocated and at the far end of the absorption path a retro-reflector is mounted on a vehicle. The source generates an outgoing laser beam that is transmitted to the retro-reflector and reflected towards the detector as an incoming laser beam, and the detector receives the incoming laser beam that was reflected by the retro-reflector.

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Номер записи: 10
01-08-2013 дата публикации

Method And Apparatus For Siloxane Measurements In A Biogas

Номер: US20130193325A1
Автор: Kamlet Leonard I., Marshik-Geurts Barbara, Phillips Charles Mark, Saptari Vidi, Spartz Martin L.
Принадлежит: MKS Instruments, Inc.

A method is provided for monitoring one or more silicon-containing compounds present in a biogas. The method includes generating a first absorption spectrum based on a ratio of a first spectral measurement and a second spectral measurement. The first spectral measurement is from a non-absorptive gas having substantially no infrared absorptions in a specified wavelength range of interest and the second spectral measurement is from a sample gas comprising the biogas. The method includes generating at least one surrogate absorption spectrum based on, at least, individual absorption spectrum for each of a subset of one or more silicon-containing compounds selected from a larger set of known silicon-containing compounds with known concentrations. A total concentration of the one or more silicon-containing compounds in the biogas can be calculated based on the first absorption spectrum and the at least one surrogate absorption spectrum. 1. A method for monitoring one or more silicon-containing compounds present in a biogas , the method comprising:providing a non-absorptive gas to a sample cell, the non-absorptive gas having substantially no infrared absorptions in a specified wavelength range of interest;obtaining a first spectral measurement from the sample cell;providing a biogas to the sample cell;obtaining a second spectral measurement from the sample cell;generating a first absorption spectrum based on a ratio of the first spectral measurement and the second spectral measurement;generating at least one surrogate absorption spectrum based on, at least, individual absorption spectrum for each of a subset of one or more silicon-containing compounds selected from a larger set of known silicon-containing compounds with known concentrations; andcalculating a total concentration of the one or more silicon-containing compounds in the biogas based on the first absorption spectrum and the at least one surrogate absorption spectrum.2. The method of claim 1 , wherein the one or ...

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Номер записи: 11
26-09-2013 дата публикации

REMOTE VEHICLE EMISSIONS SENSING SYSTEM AND METHOD FOR DIFFERENTIATING WATER FROM HYDROCARBONS

Номер: US20130253849A1
Автор: Gentala Robert Allen, McClintock Peter Miles, Stedman Donald Hugh
Принадлежит: Envirotest Systems Holdings Corp.

Water droplets in exhaust gas that is, or was, analyzed by a remote emissions sensing system are detected. The detection may be made using measurements generally captured by the remote emissions sensing system during typical operation. As such, the detection may be applied “on site” as remote emissions sensing analysis is ongoing, or may be applied post hoc from data previously acquired by a remote emissions sensing system. The detection may be implemented without requiring additional sensors, more sophisticated sensors, and/or other additional or more sophisticated equipment being included in the remote emissions sensing system. 1. A system configured to detect the presence of water droplets in vehicle emissions present in an optical path of a remote emissions sensing system , wherein the remote emissions sensing system includes an electromagnetic radiation source and a detector arranged to form the optical path such that the optical path traverses a roadway along which a vehicle travels , the system comprising:one or more processors configured to execute computer program modules, the computer program modules comprising:(i) a quantity module configured to obtain determinations of quantities of a plurality of molecular species present in an exhaust plume emitted by the vehicle,wherein the determined quantities of the plurality of molecular species have been determined based on output signals generated by the detector conveying information related to intensities of electromagnetic radiation received at the detector from the source in a plurality of absorption wavelengths that correspond to the plurality of molecular species,wherein the plurality of molecular species comprises carbon monoxide, hydrocarbons, and carbon dioxide, andwherein the plurality of absorption wavelengths comprises a first absorption wavelength that corresponds to carbon monoxide, a second absorption wavelength that corresponds to hydrocarbons, and a third absorption wavelength that corresponds ...

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Номер записи: 12
03-10-2013 дата публикации

APPARATUS FOR THE NON-DESTRUCTIVE TESTING OF THE INTEGRITY AND/OR SUITABILITY OF SEALED PACKAGINGS

Номер: US20130258346A1
Автор: TONDELLO GIUSEPPE
Принадлежит: L PRO S.R.L.

An apparatus for the non-destructive testing of the integrity and/or suitability of sealed packagings having at least one portion () at least partially optically transparent, preferably food packagings, in particular through a verification of conformity of the atmosphere inside such food packagings, wherein the apparatus comprises at least one inspection area (); at least one laser source () with an optical axis (A); at least one detector () positioned so as to detect at least one portion of back-scattered beams (′) following the collision of the laser beam () emitted by the laser source () with a target () and provide—at the output—a representative datum of an absorption spectrum of the gas. The apparatus includes means for measuring a distance covered by the laser beam () and electronic processing means for calculating the concentration of the gas. 110100111121. An apparatus () for the non-destructive testing of the integrity and/or suitability of sealed packagings () having at least one portion ( , ) at least partially optically transparent , comprising:{'b': 20', '100, 'at least one inspection area () suitable for housing said packaging ();'}{'b': 11', '12', '11', '12', '20, 'at least one laser source () with an optical axis (A) for the emission of a laser beam () at a wavelength substantially coinciding with a gas absorption wavelength, said at least one laser source () being positioned so as to direct said laser beam () towards said at least one inspection area ();'}{'b': 13', '12', '12', '11', '100', '200', '12', '12', '100, 'at least one detector () positioned so as to detect at least a portion of retro-scattered beams (′) following the collision of said laser beam () emitted from said laser source () with a target (,) and provide, at the output, a representative datum of an adsorption spectrum of said gas; characterized in that it comprises measurement means of a distance covered by said laser beam. () and by said at least one portion of backscattered beams ...

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Номер записи: 13
24-10-2013 дата публикации

Optical gas analyzer device having means for calibrating the frequency spectrum

Номер: US20130276509A1
Автор: Carsten Rathke, Gerhard Thielemann, Norbert Will, WERNER Rüdiger
Принадлежит: ABB AG Germany

Exemplary embodiments relate to an optical gas analyzer device that includes at least one measuring chamber in the form of a tubular measuring cuvette through which measuring gas flows. The measuring chamber is illuminated longitudinally by a radiation source that is arranged at an input end thereof and the light beam of which weakened by absorption losses is detected for gas concentration analysis by at least one detector arranged at an output end. The measuring process is calibrated using a reference spectrum. A special optical filter can be inserted into the measuring process in place of the measuring cuvette. The filter material of the filter generates a plurality of strong absorptions across the entire wavelength range of the measuring spectrum in order to cause attenuations that in the particular spectral position correspond to those of the gaseous measuring medium in greater concentration.

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Номер записи: 14
31-10-2013 дата публикации

Remote sensing of hydrocarbon leaks

Номер: US20130289899A1
Автор: Adrian Banica, Boyd T Tolton, Douglas W. Miller
Принадлежит: Synodon Inc

A gas filter correlation radiometer mounted on an aircraft is flown over a target area. The gas filter correlation radiometer is configured to detect a gas in a vapour plume in the event of a liquid leak. The gas filter correlation radiometer uses a gas in the vapour or a gas that has a spectral band overlapping a spectral band of the vapour. The gas filter correlation radiometer uses background radiation to detect the vapour.

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Номер записи: 15
30-01-2014 дата публикации

System and method for photoacoustic gas analysis

Номер: US20140026639A1
Автор: Boon Kwee Lee, Xuefeng Wang
Принадлежит: General Electric Co

A system for analyzing gas concentrations in a gas mixture includes an array of semiconductor light sources which are configured to generate an electromagnetic radiation having a narrow bandwidth. A controller modulates the electromagnetic radiation at a modulating frequency to provide light pulses at an absorption wavelength of at least one target gas. The system also includes an acoustic resonant gas chamber to hold the gas mixture and configured to receive the light pulses and amplify acoustic signals emanating from the gas mixture. A processor determines a concentration of the target gas based on acoustic signals.

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Номер записи: 16
06-02-2014 дата публикации

EGR DISTRIBUTION AND FLUCTUATION PROBE BASED ON CO2 MEASUREMENTS

Номер: US20140034833A1
Автор: II James E., JR. William P., Parks, Partridge, Yoo Ji Hyung
Принадлежит:

A diagnostic system having a laser, an EGR probe, a detector and a processor. The laser may be a swept-λ laser having a sweep range including a significant COfeature and substantially zero absorption regions. The sweep range may extend from about 2.708 μm to about 2.7085 μm. The processor may determine COconcentration as a function of the detector output signal. The processor may normalize the output signal as a function of the zero absorption regions. The system may include a plurality of EGR probes receiving light from a single laser. The system may include a separate detector for each probe. Alternatively, the system may combine the light returning from the different probes into a composite beam that is measured by a single detector. A unique modulation characteristic may be introduced into each light beam before combination so that the processor can discriminate between them in the composite beam. 1. An apparatus for determining concentration of a substance in a fluid stream , the apparatus comprising:a laser light source coupled to a first end of a pitch optic cable, the laser light source being a swept-λ laser configured to produce light output over a sweep range that includes a region having a significant absorption feature of the substance and at least one region of substantially zero absorption;a lens disposed proximate a second end of the pitch optic cable for directing the light through a sampling chamber to a mirror;a catch optic cable having a second end disposed proximate said lens;a catch optic affixed to a first end of said catch optic cable, said catch optic including a detector, said detector providing an output signal representative of light intensity across said sweep range; anda processor coupled to said detector, said processor configured to determine said concentration as a function of said output signal.2. The apparatus of wherein said processor is configured to normalize said output signal using a baseline established as a function of said ...

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Номер записи: 17
27-03-2014 дата публикации

Method for the Chip-Integrated Spectroscopic Identification of Solids, Liquids, and Gases

Номер: US20140084147A1
Автор: Chakravarty Swapnajit, Chen Ray T.
Принадлежит: OMEGA OPTICS, INC.

Methods and systems for a label-free on-chip optical absorption spectrometer consisting of a photonic crystal slot waveguide are disclosed. The invention comprises an on-chip integrated optical absorption spectroscopy device that combines the slow light effect in photonic crystal waveguide and optical field enhancement in a slot waveguide and enables detection and identification of multiple analytes to be performed simultaneously using optical absorption techniques leading to a device for chemical and biological sensing, trace detection, and identification via unique analyte absorption spectral signatures. Other embodiments are described and claimed. 1. A method for on-chip optical absorption spectroscopy , the method comprising:generating electromagnetic radiation from a broadband source; i) a substrate;', 'ii) a bottom cladding disposed on the substrate;', 'iii) a slab disposed on the bottom cladding, wherein the refractive index of the bottom cladding is lower than the refractive index of the slab;', 'iv) a plurality of void columnar members etched through the slab, wherein the plurality of void columnar members form a periodic lattice with a lattice constant α;', 'v) a core in the slab comprising an input side and an output side, wherein the core is free of void columnar members from the input side to the output side;', 'vi) wherein the distance between immediately adjacent inter-row void columnar members between a first row of void columnar members of the lattice from the input side to the output side immediately adjacent both sides of the core, a second row of void columnar members of the lattice from the input side to the output side immediately adjacent the first row of void columnar members of the lattice, and a third row of void columnar members of the lattice from the input side to the output side immediately adjacent the second row of void columnar members of the lattice is not equal to the lattice constant α;', a) a photonic crystal waveguide formed ...

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Номер записи: 18
06-01-2022 дата публикации

FILTER INCIDENCE NARROW-BAND INFRARED SPECTROMETER

Номер: US20220003665A1
Автор: MARCHANT Alan, SWENSON Charles
Принадлежит:

A system and methods for optically detecting a target atmospheric gas are disclosed and described. An imaging system can include a narrow-band optical interference filter with a center wavelength that corresponds to a feature in an absorption spectrum of a target gas at a normal angle of incidence. An optical component can receive incoming light from the target gas that has passed through the narrow-band optical interference filter, wherein the narrow-band optical interference filter is tilted relative to the optical component, which tilt shifts the wavelength of light from each target point that is able to pass through the narrow-band optical interference filter. A camera can receive the incoming light that has been focused by the optical component. Multiple image frames are collected for different orientations of the system with respect to the target and analyzed to perform hyperspectral characterization of target gas absorption. 1. A system for optically detecting a target gas , comprising:a narrow-band optical interference filter with a filter bandwidth and a center wavelength that correspond to a feature in an absorption spectrum of the target gas at a normal angle of incidence;an optical component to receive incoming light from the target gas that has passed through the narrow-band optical interference filter, wherein the narrow-band optical interference filter is tilted relative to the optical component, which tilt shifts the wavelength of light from a direction of a given target point that is able to pass through the narrow-band optical interference filter; anda camera to receive the incoming light that has been focused by the optical component; the camera having a camera focal plane.2. The system of claim 1 , wherein the filter bandwidth is less than about 3 nm.4. The system of claim 3 , wherein the CWL′ is shifted by less than 10 nm and by more than the filter bandwidth.5. The system of claim 3 , wherein the absorption feature has a contrast of at least 10 ...

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Номер записи: 19
05-01-2017 дата публикации

Method and Device for Determining the Carbon Dioxide Content in Ambient Air

Номер: US20170003258A1
Автор: KRAUSS Andreas
Принадлежит:

A method for determining the carbon dioxide content in ambient air includes providing a mobile data transmission device which comprises a sensor configured to detect carbon dioxide in ambient air. The method further includes calibrating the sensor. Calibrating the sensor includes measuring the carbon dioxide content of the ambient air in a reference situation. The method also includes measuring the carbon dioxide content of the ambient air using the sensor. 1. A method for determining a carbon dioxide content of ambient air , the method comprising:providing a mobile data transmission device which has a sensor configured to record carbon dioxide in ambient air;calibrating the sensor, including measuring a carbon dioxide content of the ambient air in a reference situation representing a situation having a carbon dioxide content within a tolerance range around a reference value; andmeasuring a carbon dioxide content of the ambient air using the sensor.2. The method as claimed in claim 14 , wherein:calibrating the sensor includes at least one of recording and reading in a position of at least one of the sensor and the data transmission device, andthe presence of the reference situation is detected using the position.2. The method as claimed in claim 2 , wherein claim 2 , the presence of the reference situation is detected using at least one of a camera and a noise sensor.4. The method as claimed in claim 2 , wherein the position is recorded using a wireless position detection system.5. The method as claimed in claim 1 , wherein calibrating the sensor includes measuring a carbon dioxide content of the ambient air in a further reference situation representing a situation having a carbon dioxide content within a further tolerance range around a further reference value.6. The method as claimed in claim 1 , wherein calibrating the sensor includes using air exhaled by a person as ambient air for determining the further reference situation.7. The method as claimed in claim 1 , ...

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Номер записи: 20
04-01-2018 дата публикации

CHARACTERIZATION OF CRUDE OIL BY NEAR INFRARED SPECTROSCOPY

Номер: US20180003627A1
Автор: Al-Hajji Adnan, KOSEOGLU Omer Refa
Принадлежит:

A system and a method for determining one or more distillation temperatures for one or more given distillation weight percentages of a crude oil sample are provided, which can be used to produce a simulated distillation curve. Simulated distillation temperatures of crude oil samples are assigned as a function of density and data derived from direct near infrared spectroscopy measurement of the crude oil samples. 1. A system for assigning a distillation temperature for a given distillation weight percentage to a fraction of an oil sample based upon near infrared spectroscopy data , the system comprising:a non-volatile memory device that stores calculation modules and data, the data including NIR spectroscopy data indicative of absorbance values of the crude oil solution for peaks detected in a predetermined wavenumber range for the oil sample;a processor coupled to the memory;a first calculation module that calculates and assigns a cumulative and normalized infrared absorbance for the given distillation weight percentage from the data indicative of absorbance values; anda second calculation module that calculates and assigns a simulated distillation temperature of the fraction as a function of the infrared absorbance for the given distillation weight percentage, and density of the oil sample.2. A system for assigning a distillation temperature for a given distillation weight percentage to a fraction of an oil sample comprising:a near infrared spectrometer that outputs near infrared spectroscopy data;a non-volatile memory device that stores calculation modules and data, the data including NIR spectroscopy data indicative of absorbance values of the crude oil solution for peaks detected in a predetermined wavenumber range for the oil sample;a processor coupled to the memory;a first calculation module that calculates and assigns a cumulative and normalized infrared absorbance for the given distillation weight percentage from the data indicative of absorbance values; ...

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Номер записи: 21
04-01-2018 дата публикации

MULTISPECTRAL THERMAL IMAGING FOR DETECTION OF MATERIALS OF INTEREST

Номер: US20180003689A1
Автор: "ODell Brian D.", Ja Shiou-jyh, Shelton Robert K.
Принадлежит:

Imaging techniques are provided to determine the presence of trace chemicals corresponding to various materials of interest. In one example, a method includes receiving a test sample and capturing a plurality of infrared images of the test sample. Each infrared image corresponds to a different range of infrared radiation wavelengths. The method also includes determining a spectral profile of the test sample using the infrared images, comparing the determined spectral profile to a known spectral profile of a material of interest, and determining whether the material is present in the test sample based on the comparing. Additional methods and related devices are also provided. 1. A method comprising:receiving a test sample;capturing a plurality of infrared images of the test sample, wherein each infrared image corresponds to a different range of infrared radiation wavelengths;determining a spectral profile of the test sample using the infrared images;comparing the determined spectral profile to a known spectral profile of a material of interest; anddetermining whether the material is present in the test sample based on the comparing.2. The method of claim 1 , further comprising positioning a plurality of filters associated with the different ranges of infrared radiation wavelengths between the test sample and an infrared imager during the capturing.3. The method of claim 2 , wherein the infrared imager comprises a plurality of microbolometers having a spectral sensitivity that varies over the different ranges of infrared radiation wavelengths claim 2 , wherein the filters are selected to adjust relative throughput of infrared radiation passed by the filters to the microbolometers according to the varying spectral sensitivity.4. The method of claim 2 , wherein the positioning comprises rotating a filter wheel comprising the filters to selectively position the filters.5. The method of claim 1 , wherein the capturing is performed by a plurality of image capture devices ...

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Номер записи: 22
02-01-2020 дата публикации

METHOD FOR ESTIMATING THE INTENSITY OF A WAVE EMITTED BY AN EMITTING SOURCE

Номер: US20200003680A1
Автор: Le Thanh Trung
Принадлежит:

A method for analyzing a gaseous sample, by comparing an incident light wave and a transmitted light wave, the method comprising: i) illuminating the sample with a light source emitting the incident light wave propagating up to the sample; ii) detecting a light wave transmitted by the sample; iii) detecting a reference light wave emitted by the light source and representing a light wave reaching a reference photodetector without interacting with the sample; iv) repeating i) to iii) at different measurement instants; v) estimating, at each measurement instant, an intensity of the reference light wave; vi) taking into account the estimated intensity of the reference light wave and the detected intensity of the transmitted light wave to perform a comparison, at each measurement instant; and vii) analyzing the gaseous sample as a function of the comparison. 1. A method for analyzing a gas sample , by comparison between a light wave incident on the sample and a light wave transmitted by the sample , the method comprising:i) illuminating the sample, with a light source, the light source emitting an incident light wave that propagates to the sample;ii) detecting, with a measurement photodetector, a transmitted light wave transmitted by the sample, the transmitted light wave resulting from an attenuation of the incident light wave by the sample;iii) detecting a reference light wave with a reference photodetector, the reference light wave being emitted by the light source, the reference light wave being representative of a light wave reaching the reference photodetector without interaction with the sample;iv) reiterating i) to iii) at various measurement times; b) estimating an intensity of the reference light wave at a measurement time based on an initial intensity or an estimation of the intensity of the reference light wave at a prior measurement time;', 'c) measuring an intensity of the reference light wave detected at the measurement time;', 'd) updating the estimation ...

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Номер записи: 23
03-01-2019 дата публикации

Multi-laser gas leakage detector

Номер: US20190003918A1
Автор: Chuhan Yuan, Jiebo Li, Wanyi Zhao, Xunmin Guo, Zhen Yin
Принадлежит: Aurora Innovative Technology LLC

A system remotely detects a gas leakage from a pipeline in an area. The system detects a gas leakage by determining an absorption or emission of gasses in the area. The gas detection system includes at least two light sources. The lasers can include lasers for detecting absorbance of gasses in the area, lasers for stimulating emission of gasses in the area, and lasers for detecting a pathlength. Absorption is determined based on the relative amplitude difference of emitted and reflected light beams. Emission is determined based on an amount emission stimulated by absorbed lasers. Pathlength is determined calculating time of flight of a light beam. The detection system calculates a concentration of the gasses in the area using the determined absorption and pathlength. The detection system can also generate an image representing a gas leakage in the area. The detection system may be attached to an unmanned aerial vehicle.

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Номер записи: 24
07-01-2021 дата публикации

Inspection Support Method, Inspection Support Apparatus, and Inspection Support Program

Номер: US20210003983A1
Автор: KAWASHIMA Hisanori, MINEGISHI Ryo, OHTA TAKASHI, Okamoto Yasuhiro, TAKAMURA Shunsuke
Принадлежит:

Provided are an inspection support method, inspection support apparatus, and inspection support program that are able to efficiently make an inspection plan for a production facility. The inspection support method is a method on inspection of a gas or petroleum-related production facility, the inspection support method including: receiving registration of producer information on a producer that owns or manages the production facility; receiving registration of production facility information on the production facility; receiving registration of inspector information on each of a plurality of inspector candidates that are candidates to inspect the production facility; acquiring the registered production facility information on the production facility; acquiring the registered inspector candidate information on the inspector candidate; and outputting inspection-related information, containing inspection schedule information on a schedule of inspection of the production facility by the inspector candidate, based on the acquired production facility information and the acquired inspector candidate information. 121.-. (canceled)22. A management method for inspection information on inspection of a gas or petroleum-related production facility , the management method comprising:receiving input of an operation to issue a browsing request to browse the inspection information from a producer;reading out the stored inspection information and position information of the production facility based on the browsing request for the production facility that is a subject of browsing;generating a display image indicating the inspection information and the production facility based on the position information on a map of an area containing the production facility that is the subject of browsing; andoutputting the display image.23. The management method for inspection information according to claim 22 , wherein the inspection information contains at least one of whether there is a gas leak ...

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Номер записи: 25
13-01-2022 дата публикации

METHOD AND SYSTEM FOR SPECTROPHOTOMETRIC ANALYSIS OF A SAMPLE

Номер: US20220011218A1
Автор: CATELANI Filippo
Принадлежит:

A system and method for the spectrophotometric analysis of a sample of a liquid solution while it flows in a duct. The method determines the luminous intensity (I) of a substantially monochromatic beam based on the cleaning state of a measurement chamber and/or ageing of at least one emitting device and/or ageing of at least one detecting device, whereby the worse is the cleaning state of the measurement chamber and/or the greater is the ageing state of the at least one emitting device and/or the at least one detecting device, the higher the luminous intensity (I) of the substantially monochromatic beam. 114.-. (canceled)16. A method according to claim 15 , wherein said luminous intensity Iis determined by carrying out one “no-load” measurement in said measurement chamber according to the following steps:{'sub': 'in', 'A2.1 generating said at least one substantially monochromatic beam having an initial luminous intensity I;'}A2.2 illuminating said sample of said liquid solution, with said at least one substantially monochromatic beam, along said optical path;A2.3 detecting said at least one substantially monochromatic beam, at the end of said optical path; andA2.4 processing said at least one substantially monochromatic beam thus detected, thereby obtaining at least one reference parameter p4, wherein said at least one reference parameter p4 is a measured voltage value in output from said at least one detecting device, and{'sub': 0', '4', '0, 'A2.5 comparing said at least one reference parameter p4 with at least one predetermined first threshold value Swhereby if said at least one reference parameter pis less than or equal to said at least one predetermined first threshold value S, said method comprises'}A2.6 emitting at least one error signal, to indicate a fault that prevents from completing said at least one “no-load” measurement.17. A method according to claim 16 , wherein said at least one predetermined first threshold value Sis a voltage value corresponding to ...

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Номер записи: 26
07-01-2016 дата публикации

Bi-directional dual-color light emitting device and systems for use thereof

Номер: US20160005921A1
Автор: Belenky Gregory, Shterengas Leon, SUCHALKIN SERGEY, Westerfeld David
Принадлежит: POWER PHOTONICS CORPORATION

An LED optimized for use in low-cost gas or other non-solid substance detection systems, emitting two wavelengths (“colors”) of electromagnetic radiation from the same aperture is disclosed. The LED device emits a light with a wavelength centered on an absorption line of the target detection non-solid substance, and also emits a reference line with a wavelength that is not absorbed by a target non-solid substance, while both wavelengths are transmitted through the atmosphere with low loss. Since the absorption and reference wavelengths are emitted from the same exact aperture, both wavelengths can share the same optical path, reducing the size and cost of the detector while also reducing potential sources of error due to optical path variation. 1. A two-terminal light emitting semiconductor device producing a light of two different wavelengths depending on a polarity of an applied electric bias , comprising two active regions with efficient radiative carrier recombination , each of the said active regions sandwiched between two carrier supply regions of different carrier types , the said active regions sharing one of the carrier supply regions and conducting electric current at both polarities of the electric bias.2. A semiconductor device of where at least one of the said active regions comprises a bulk material with efficient radiative carrier recombination.3. A semiconductor device of where at least one of the said active regions comprises a structure with localized quantum state of the carrier claim 1 , a structure selected from the group of quantum well and superlattice.4. A semiconductor device of one of the or where each of the said active regions emits light when biased in forward direction with respect to the polarity of adjacent carrier supply regions claim 1 , and efficiently non-radiatively conducts electric current when biased in reverse direction with respect to the polarity of adjacent carrier supply regions.5. A semiconductor device of the where the ...

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Номер записи: 27
07-01-2021 дата публикации

METHODS, APPARATUS, AND SYSTEMS FOR PROCESSING A SUBSTRATE

Номер: US20210005435A1
Автор: Cho Tae S, Jung Soonwook, Kalita Laksheswar, Schatz Kenneth D
Принадлежит:

Methods, apparatus, and systems for substrate processing are provided. Apparatus can include a controller; a processing chamber; a substrate supporting a substrate; and an infrared sensor assembly disposed adjacent the substrate support and comprising: a sample chamber one of made from or coated with nickel or nickel alloy and configured to collect chemicals which are present while the substrate is being processed in the processing chamber; an IR light source disposed at one end of the sample chamber and an IR detector disposed at an opposite end of the sample chamber; and a pair of windows positioned in an optical path between the IR light source and the IR detector, wherein the IR light source transmits IR light along the optical path and the IR detector detects the transmitted IR light and transmits a signal to the controller for determining a concentration of the chemicals present in the processing chamber. 1. A system for processing a substrate , comprising:a controller;a processing chamber defining an inner volume;a substrate support disposed in the processing chamber to support a substrate; and a sample chamber one of made from or coated with nickel or nickel alloy and configured to collect chemicals which are present while the substrate is being processed in the processing chamber;', 'an IR light source disposed at one end of the sample chamber and an IR detector disposed at an opposite end of the sample chamber; and', 'a pair of windows positioned in an optical path between the IR light source and the IR detector,', 'wherein the IR light source transmits IR light along the optical path and the IR detector detects the transmitted IR light and transmits a signal to the controller for determining a concentration of the chemicals present in the processing chamber., 'an infrared (IR) sensor assembly disposed in the inner volume of the processing chamber adjacent the substrate support and comprising2. The system according to claim 1 , wherein the pair of windows ...

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Номер записи: 28
20-01-2022 дата публикации

System and method for detecting a given gas species present in a gaseous sample using gas filter correlation spectroscopy

Номер: US20220018771A1
Автор: Francois Babin, Jean-François GRAVEL, Pascal Dufour
Принадлежит: Institut National dOptique

There is described a method for detecting a given gas species present in a gaseous sample. The method generally has splitting a primary optical pulse into first and second optical pulses, the primary optical pulse having a duration and carrying optical power within an excitation spectrum encompassing at least one absorption spectral band of the given gas species, the first optical pulse being propagated across an optical gas filter unit containing an amount of the given gas species and attenuating the first optical pulse at the at least one absorption band, one of i) the primary optical pulse and ii) the first and second optical pulses being propagated across the gaseous sample, and temporally delaying the first and second optical pulses from one another; measuring signal values of the delayed optical pulses; and detecting the presence of the given gas species in the gaseous sample based on the signal values.

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Номер записи: 29
14-01-2021 дата публикации

PHOTOSYNTHESIS RATE MEASUREMENT SYSTEM

Номер: US20210007288A1
Автор: INABA Kazue, NISHINA Hiroshige, SHIMOMOTO Kota, Takahashi Noriko, TAKAYAMA Kotaro
Принадлежит:

The present invention provides a photosynthesis rate measurement system capable of measuring carbon dioxide concentration in order to calculate the photosynthesis rate of plants with a simple configuration. The present invention is a photosynthesis rate measurement system, including a covering portion covering target plants, a sensor housing, and a sensor alternately measuring carbon dioxide concentrations inside and outside the covering portion. The sensor is provided in the sensor housing, and an air stirring portion to improve the sensor's response is equipped in the sensor housing. 1. A photosynthesis rate measurement system of a plant , comprising:a covering portion covering a target plant,a sensor housing, anda sensor in the sensor housing alternately measuring carbon dioxide concentrations inside and outside the covering portion,wherein an air stirring portion to enhance the mixing of the air in the sensor housing is equipped inside the sensor housing.2. The system of claim 1 , wherein the sensor measures the difference in carbon dioxide concentrations between inflow air and outflow air of the covering portion claim 1 , andthe air stirring portion is equipped with the sensor in the sensor housing to improve the response speed of the sensor to trace changes in the carbon dioxide concentrations.3. The system of claim 1 , wherein the air stirring portion is provided to face a surface where the sensor and the air are in contact with each other inside the sensor housing.4. The system of claim 1 , wherein the covering portion comprises a canopy and a covering sheet claim 1 ,the canopy is arranged above the target plant,the covering sheet is arranged to cover a side of the target plant, andthe covering sheet is configured to comprise an overlapped part of two adjacent sheets.5. The system of claim 4 , further comprising a lid and a string supporting the target plant claim 4 ,wherein the canopy is provided with holes,the lid comprises an insertion portion through ...

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Номер записи: 30
27-01-2022 дата публикации

SIGNAL PROCESSING CIRCUIT, MEASUREMENT APPARATUS, AND SIGNAL PROCESSING METHOD

Номер: US20220026353A1
Автор: FUJIMOTO Takashi, IKEDA Astushi, KAJIWARA Shinpei
Принадлежит: OTSUKA PHARMACEUTICAL CO., LTD.

A signal processing circuit processes a signal based on a quantity of light detected by an infrared detector. The signal processing circuit includes an IV conversion circuit, a filter circuit, and a differential converter circuit. The IV conversion circuit converts a signal of a current value provided from the infrared detector to a signal of a voltage value. The filter circuit allows passage of a signal containing a predetermined frequency component among signals converted by the IV conversion circuit. The differential converter circuit generates a reverse-phase signal of a passed signal that has passed through the filter circuit and provides a differential signal including the passed signal and the reverse-phase signal. 110.-. (canceled)11. A signal processing circuit that processes a signal based on a quantity of light detected by an infrared detector , the signal processing circuit comprising:a current-voltage conversion circuit that converts a signal of a current value provided from the infrared detector to a signal of a voltage value;a filter circuit that allows passage of a signal containing a predetermined frequency component among signals converted by the current-voltage conversion circuit; anda differential circuit that generates a reverse-phase signal of a passed signal that has passed through the filter circuit and provides a differential signal including the passed signal and the reverse-phase signal.12. The signal processing circuit according to claim 11 , further comprising an analog-digital conversion circuit that converts the differential signal provided from the differential circuit to a digital signal.13. The signal processing circuit according to claim 12 , whereinthe analog-digital conversion circuit sets a resolution at which the differential signal is converted to the digital signal to be higher than a resolution at which the passed signal is converted to the digital signal.14. The signal processing circuit according to claim 11 , further ...

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Номер записи: 31
27-01-2022 дата публикации

LASER-BASED SYSTEM FOR SUBSTANCE DETECTION

Номер: US20220026354A1
Автор: FAROOQ Aamir, KHAMIS Abdullah Jassim, KUNNUMMAL Noushad, MHANNA Mhanna, ZHANG Guangle
Принадлежит:

A laser-based detection system that includes a laser device configured to emit a laser beam; a measuring chamber configured to receive in an internal cavity ambient air and the laser beam, wherein the measuring chamber is configured to bounce the laser beam inside the internal cavity multiple times; and a photosensor configured to receive an output laser beam from the measuring chamber. 1. A laser-based detection system comprising:a laser device configured to emit a laser beam;a measuring chamber configured to receive in an internal cavity ambient air and the laser beam, wherein the measuring chamber is configured to bounce the laser beam inside the internal cavity multiple times; anda photosensor configured to receive an output laser beam from the measuring chamber.2. The system of claim 1 , further comprising:a data acquisition system configured to receive measurements from the photosensor and determine a presence of benzene in the ambient air.3. The system of claim 1 , wherein the laser device is configured to emit the laser beam to include a wavelength of 3.3 μm.4. The system of claim 1 , wherein the laser device is configured to emit the laser beam with a wavelength in a range of 2.5 to 4.0 μm.5. The system of claim 1 , wherein the laser device is configured to emit the laser beam with a wavelength in a range of 3.0 to 4.5 μm.6. The system of claim 1 , wherein the laser device is an interband cascade laser that generates a wavelength around 3.3 μm.7. The system of claim 1 , further comprising:a dehumidifier connected to an inlet port of the measuring chamber to remove water from the ambient air prior to entering the internal cavity.8. The system of claim 1 , wherein the internal cavity includes two mirrors that reflect the laser beam multiple times inside the cavity.9. The system of claim 8 , wherein a cross-section of the internal cavity is elliptical.10. The system of claim 1 , further comprising:a convergent lens located between the measuring chamber and the ...

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Номер записи: 32
12-01-2017 дата публикации

Method and device for dissolved gas analysis

Номер: US20170010250A1
Автор: Nagapriya Kavoori Sethurnadhavan, Prashanth Raghavendra Prasad, Samhitha Palanganda Poonacha, Sandip Maity
Принадлежит: General Electric Co

A system, comprising at least one source for irradiating electromagnetic radiation into a sample fluid and a reference fluid resulting in a change in a temperature of the sample fluid and a change in a temperature of the reference fluid, and a processing subsystem that monitors and determines a concentration of a gas of interest dissolved in the sample fluid based upon a difference between the change in the temperature of the sample fluid and the change in the temperature of the reference fluid, wherein the reference fluid does not contain the gas of interest, and the electromagnetic radiation has a wavelength range corresponding to a spectral absorption range of the gas of interest.

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Номер записи: 33
14-01-2016 дата публикации

METHOD FOR QUANTITATIVE DETERMINATION OF OXIDANT AND APPRATUS FOR QUANTITATIVE DETERMINATION OF OXIDANT

Номер: US20160011118A1
Автор: IMAI Shin-ichi, KUMAGAI Hironori, ONODERA Mari
Принадлежит:

The present invention provides a method for quantitative determination of oxidant which method is capable of accurately and rapidly performing quantitative determination of oxidant at low cost, and an apparatus for quantitative determination of oxidant used in the method. The method for quantitative determination of oxidant according to the present invention is a method for quantitative determination of oxidant performing quantitative determination of oxidant in a sample using a redox reaction, the method including: adding one kind of reducing agent to a sample solution containing one or a plurality of kinds of oxidants having different lifetimes; producing an absorbance curve by measuring a time change in absorbance of the post-color-change or post-coloring reducing agent; and performing the quantitative determination of the oxidant while identifying the oxidant in the sample solution based on the obtained absorbance curve. 1. A method for quantitative determination of oxidant performing quantitative determination of oxidant in a sample using a redox reaction ,the method comprising: adding one kind of reducing agent to a sample solution containing one or a plurality of kinds of oxidants having different lifetimes; producing an absorbance curve by measuring a time change in absorbance of the post-color-change or post-coloring reducing agent; and performing the quantitative determination of the oxidant while identifying the oxidant in the sample solution based on the obtained absorbance curve.2. The method for quantitative determination of oxidant according to claim 1 , wherein the oxidant in the sample solution is identified by comparing the obtained absorbance curve with a separately-acquired standard approximate curve indicating a time change in absorbance of a well-known oxidant.3. The method for quantitative determination of oxidant according to claim 2 , wherein the obtained absorbance curve is broken down into at least one kind of approximate curve by a curve ...

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Номер записи: 34
11-01-2018 дата публикации

SMALL VOLUME, LONG PATHLENGTH MULTI-PASS GAS CELL FOR IR AND UV MONITORING

Номер: US20180011003A1
Автор: Baum Thomas H., Coates John P., Wright Robert L.
Принадлежит:

A multipass cell assembly for monitoring of fluid is described, as well as fluid processing systems utilizing same, and associated methods of use of such multipass cell assembly for fluid monitoring. The multipass cell assembly is usefully employed in fluid processing operations such as monitoring of vapor deposition process reactants, e.g., reactants used for vapor deposition metallization of tungsten from a tungsten carbonyl precursor. 1. A multipass cell assembly for monitoring of fluid , comprising:an arcuate circumscribing member defining a multipass optical reflection chamber, the arcuate circumscribing member comprising inwardly facing reflective surface along an arcuate extent thereof that generates multipass optical reflection of light impinged thereon;a light input structure configured to direct light from a light source onto the reflective surface of the arcuate circumscribing member so that said multipass optical reflection of light is generated in the optical reflection chamber;a light output structure configured to direct multipassed light from the reflective surface of the arcuate circumscribing member out of the optical reflection chamber for detection and processing thereof;a fluid inlet configured to introduce fluid to the multipass optical reflection chamber so that it interacts with multipassing light therein; anda fluid outlet configured to discharge fluid from the multipass optical reflection chamber after interaction with multipassing light therein.2. The multipass cell assembly of claim 1 , wherein the reflective surface comprises a plurality of mirrors along the arcuate extent of the arcuate circumscribing member.3. The multipass cell assembly of claim 2 , wherein the arcuate circumscribing member comprises an arcuate circumscribing support comprising receiving openings therein claim 2 , in which respective ones of said plurality of mirrors are mounted.4. The multipass cell assembly of claim 3 , wherein the mirrors comprise parabolic mirrors ...

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Номер записи: 35
11-01-2018 дата публикации

WAVELENGTH BAND BASED PASSIVE INFRARED GAS IMAGING

Номер: US20180011009A1
Автор: Ekerot Erik, Sandsten Jonas
Принадлежит:

Systems and methods disclosed herein, in accordance with one or more embodiments provide for imaging gas in a scene, the scene having a background and a possible occurrence of gas. In one embodiment, a method and a system adapted to perform the method includes: controlling a thermal imaging system to capture a gas IR image representing the temperature of a gas and a background IR image representing the temperature of a background based on a predetermined absorption spectrum of the gas, on an estimated gas temperature and on an estimated background temperature; and generating a gas-absorption-path-length image, representing the length of the path of radiation from the background through the gas, based on the gas image and the background IR image. The system and method may include generating a gas visualization image based on the gas-absorption-path-length image to display an output image visualizing a gas occurrence in the scene. 1. A method of imaging gas in a scene , the scene having a background and a possible occurrence of gas , the method comprising:controlling a thermal imaging system to capture a gas infrared (IR) image representing the temperature of a gas and a background IR image representing the temperature of a background, based on a predetermined absorption spectrum of the gas, an estimated gas temperature, and an estimated background temperature; andgenerating a gas-absorption-path-length image, which represents the length of the path of radiation from the background through the gas, based on the gas IR image and the background IR image.2. The method of claim 1 , further comprising:generating a gas visualization image based on the gas-absorption-path-length image.3. The method of claim 2 , wherein:the gas visualization image is generated based on pixel values of the gas-absorption-path-length image and a palette; andthe palette comprises grayscales and/or colors associated with mutually exclusive ranges of pixel values.4. The method of claim 1 , wherein ...

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Номер записи: 36
11-01-2018 дата публикации

SENSOR DEVICES COMPRISING A METAL-ORGANIC FRAMEWORK MATERIAL AND METHODS OF MAKING AND USING THE SAME

Номер: US20180011010A1
Автор: Baltrus John P., Chang Chih-Hung, Chong Xinyuan, KIM Ki-Joong, OHODNICKI PAUL R., Wang Alan X., Zhang Yujing
Принадлежит:

Disclosed herein are embodiments of sensor devices comprising a sensing component able to determine the presence of, detect, and/or quantify detectable species in a variety of environments and applications. The sensing components disclosed herein can comprise MOF materials, plasmonic nanomaterials, redox-active molecules, a metal, or any combinations thereof. In some exemplary embodiments, optical properties of the plasmonic nanomaterials and/or the redox-active molecules combined with MOF materials can be monitored directly to detect analyte species through their impact on external conditions surrounding the material or as a result of charge transfer to and from the plasmonic nanomaterial and/or the redox-active molecule as a result of interactions with the MOF material. 1. A sensor device , comprising a substrate coupled to a sensing component , wherein the substrate delivers light from a light source to the sensing component comprising a metal-organic framework material and a plasmonic nanomaterial , wherein the metal-organic framework material comprises a first metal and an organic ligand , and the plasmonic nanomaterial comprises a second metal , a metal alloy , a metal oxide , a metal sulfide , a dopant , and combinations thereof; and wherein the plasmonic nanomaterial is not or is other than a spherical or ellipsoidal gold nanoparticle and the substrate does not comprise a grating , and wherein the plasmonic nanoparticle and/or nanocrystal does not directly contact the substrate.2. The sensor device of claim 1 , wherein the light is near-infrared light and wherein the light guide selected from a multi-mode optical fiber or a single-mode optical fiber.3. The sensor device of claim 1 , wherein the first metal is copper claim 1 , silver claim 1 , gold claim 1 , aluminum claim 1 , zinc claim 1 , cobalt claim 1 , nickel claim 1 , magnesium claim 1 , manganese claim 1 , iron claim 1 , cadmium claim 1 , beryllium claim 1 , calcium claim 1 , titanium claim 1 , tin ...

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Номер записи: 37
11-01-2018 дата публикации

SPECTROMETRIC IONIC IMPURITY MEASURING APPARATUS AND METHOD

Номер: US20180011011A1
Автор: FOLDES Tomas
Принадлежит: Universite Libre de Bruxelles

A method for detecting and measuring the amount of an ionic impurity, notably formula (A) and/or formula (B) in a liquid sample, notably water, comprises: Introducing the liquid sample through a liquid inlet into a measurement cell, notably an optical cavity of an optical spectrometer; Causing vaporisation of the liquid sample by maintaining the pressure in the measurement cell below the saturated vapour pressure of the liquid sample; Causing the formation of gas-phase reaction product(s) of the ionic impurity; Measuring the amount of the gas-phase reaction product(s) of the ionic impurity in the measurement cell. 115-. (canceled)16. A method of detecting and measuring the amount of an ionic impurity in a liquid sample , the method comprising:introducing the liquid sample through a liquid inlet of an optical cavity of an optical spectrometer;causing vaporisation of the liquid sample by maintaining the pressure in the optical cavity below the saturated vapour pressure of the liquid sample;causing the formation of gas-phase reaction product(s) of the ionic impurity;measuring the amount of the gas-phase reaction product(s) of the ionic impurity in the optical cavity.17. The method of claim 16 , wherein the ionic impurity is selected from BrO claim 16 , NH claim 16 , CN claim 16 , HCOO claim 16 , CHCOO claim 16 , IO and (CH)NH.18. The method of claim 17 , wherein the ionic impurity is NH in water.19. The method of claim 16 , wherein the ionic impurity in the liquid sample comprises the ionic impurity in water.20. The method of claim 16 , wherein measuring the amount of the gas-phase reaction product(s) of the ionic impurity in the optical cavity comprises measuring the amount of the gas-phase reaction product(s) of the ionic impurity in the optical cavity using cavity ring-down spectrometry.21. The method of claim 20 , wherein the cavity ring-down spectrometry is continuous-wave cavity ring-down spectrometry.22. The method of claim 16 , wherein measuring the amount of ...

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Номер записи: 38
11-01-2018 дата публикации

METHOD FOR DETECTING HELICOBACTER PYLORI

Номер: US20180011081A1
Автор: Silvestric-Scheel Marko, Wagner Grischa
Принадлежит: Kibion GmbH

A method through which a more rapid detection of in a gaseous sample is practicable, in which the C content is measured only until a minimum number of measurement values of the C content meets a standard deviation to be specified. The known C urea breath test has become established for clinical diagnosis for detecting infections and known methods for detecting provide that each method step corresponds to a fixed, specified time, which is disadvantageous, especially for performing a large number of such tests. 1Helicobacter pylori. A method for detecting by means of non-dispersive infrared spectroscopy with use of C-labeled urea , comprising:{'sub': '2', 'firstly a measurement chamber is flushed with CO-free gas;'}a gaseous sample is admitted into the measurement chamber;{'sup': '13', 'the sample distributes itself homogeneously and the C content in the sample is measured; and'}{'sup': 13', '13, 'the measurement of the C content is only carried out until a minimum number of measurement values of the C content meets a standard deviation to be specified.'}2. The method as claimed in claim 1 , wherein the C content in the sample is already measured during the homogenization of the sample in the measurement chamber.3. The method as claimed in claim 1 , wherein the first recorded measurement values of the C content in the sample which meet the standard deviation are used as measurement results.4. The method as claimed in claim 1 , wherein as soon as the C measurement values meet the standard deviation of at most 1‰ claim 1 , the C measurement values are assessed as measurement results.5. The method as claimed in claim 1 , wherein the flushing of the measurement chamber and the admission of the sample into the measurement chamber is performed only until a threshold value of the COcontent or the C content in the measurement chamber claim 1 , to be specified claim 1 , is reached.6. The method as claimed in claim 1 , wherein the COcontent or the C content in the measurement ...

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Номер записи: 39
10-01-2019 дата публикации

PRECIOUS STONE TESTING DEVICE

Номер: US20190011373A1
Автор: Tam Kui Lim
Принадлежит:

A gemstone testing apparatus with an apparatus body, a reflector housing with a light reflective layer at its interior surface, a transparent housing portion that is transparent for ultraviolet light, and a detector probe that is protruding from the transparent housing portion. An UV light emitter is provided within the reflector housing, which is adapted for directing the UV light through the transparent housing portion into the vicinity of a tip of the detector probe. 1. A gemstone testing apparatus comprising:an apparatus body enclosing electronic circuitry;a visible violet light emitter configured to generate visible violet light;a reflector housing, an interior surface of the reflector housing being provided with a light reflective layer;a transparent housing portion provided adjacent to the reflector housing; anda detector probe protruding from the transparent housing portion,wherein the visible violet light emitter is provided within the reflector housing and the reflector housing is provided for directing the visible violet light of the visible violet light emitter through the transparent housing portion into the vicinity of a tip of the detector probe,wherein the detector probe and the visible violet light emitter are connected to the electronic circuitry, andwherein the electronic circuitry comprises a conductivity sensing circuitry that is connected to the detector probe and to a processing unit, the processing unit being operative to turn on the visible violet light emitter and to perform a subsequent conductivity measurement using the conductivity sensing circuitry.2. The gemstone testing apparatus of claim 1 , wherein the visible violet light emitter is configured to emit light in the visible violet and blue spectrum.3. The gemstone testing apparatus of claim 1 , wherein the visible violet light emitter is configured to emit light with a wavelength of 390 nm to 450 nm.4. The gemstone testing apparatus of claim 1 , wherein the detector probe is provided ...

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Номер записи: 40
10-01-2019 дата публикации

Wide Range Gas Detection Using an Infrared Gas Detector

Номер: US20190011414A1
Автор: Enquist Fredrik, Hellgren Johan, Vennerberg Henrik
Принадлежит:

Method for wide range gas detection using a gas detection system comprising a sample gas inlet, a reference gas inlet, a gas modulation valve and a gas analyzer, wherein the gas modulation valve alternatingly connects the sample gas inlet to the gas analyzer during a sample gas time period and the reference gas inlet to the gas analyzer during a reference gas time period, characterized in that the sample gas time period is shorter than the reference gas time period such that the sample gas concentration in the gas analyzer is reduced. 1. A method for wide range gas detection using a gas detection system comprising a sample gas inlet , a reference gas inlet , a gas modulation valve , and a gas analyzer , the method comprising alternatingly connecting , using the gas modulation valve , the sample gas inlet to the gas analyzer during a sample gas time period and the reference gas inlet to the gas analyzer during a reference gas time period ,the sample gas time period is shorter than the reference gas time period such that a concentration of sample gas in the gas analyzer is reduced.2. The method according to claim 1 , wherein a number of gas pulses in the gas analyzer generated by switching between the sample gas inlet and the reference gas inlet claim 1 , by alternatingly connecting using the gas modulation valve claim 1 , is larger than 1 during gas analysis.3. The method according to claim 2 , wherein the number of gas pulses is more than 5.4. The method according to claim 1 , further comprising analyzing a measurement signal of the gas analyzer at a detection frequency being an integer multiple of a gas modulation frequency at which the gas modulation valve switches between the sample gas inlet and the reference gas inlet.5. The method according to claim 4 , wherein the measurement signal generated by the gas analyzer is additionally analyzed at an additional frequency or at several additional frequencies each being integer multiples of the gas modulation frequency ...

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Номер записи: 41
09-01-2020 дата публикации

WAVELENGTH BAND BASED PASSIVE INFRARED GAS IMAGING

Номер: US20200011789A1
Автор: Ekerot Erik, Kotaleski Jonce, Sandsten Jonas
Принадлежит:

Systems and methods disclosed herein, in accordance with one or more embodiments provide for imaging gas in a scene, the scene having a background and a possible occurrence of gas. In one embodiment, a method and a system adapted to perform the method includes: controlling a thermal imaging system to capture a gas IR image representing the temperature of a gas and a background IR image representing the temperature of a background based on a predetermined absorption spectrum of the gas, on an estimated gas temperature and on an estimated background temperature; and generating a gas-absorption-path-length image, representing the length of the path of radiation from the background through the gas, based on the gas image and the background IR image. The system and method may include generating a gas visualization image based on the gas-absorption-path-length image to display an output image visualizing a gas occurrence in the scene. 1. (canceled)2. A method comprising:identifying a subset of a predetermined absorption spectrum of a gas in a scene based on temperatures of the gas and a background of the scene;capturing a gas infrared (IR) image in response to radiation received in a high absorption wavelength band for the gas in the predetermined absorption spectrum and comprising the subset of the predetermined absorption spectrum;capturing a background IR image in response to radiation received in a low absorption wavelength band for the gas in the predetermined absorption spectrum;capturing a water image in response to radiation received in a water wavelength band; andgenerating a gas-absorption-path-length image, which represents the length of the path of radiation from the background through the gas, based on the gas IR image, the background IR image, and the water image.3. The method of claim 2 , wherein the water wavelength band excludes the high absorption wavelength band and/or the low absorption wavelength band.4. The method of claim 2 , further comprising ...

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Номер записи: 42
03-02-2022 дата публикации

SPECTROPHOTOMETER, SPECTROMETER, AND METHOD OF MANUFACTURING SPECTROPHOTOMETER

Номер: US20220034792A1
Автор: Aono Takanori, Ebata Yoshisada, YAEGASHI Kenta
Принадлежит:

A spectrophotometer includes a white light source condenser lenses that collect light emitted from the white light source a slit that diffracts the light collected by the condenser lenses a concave diffraction grating that splits the light having passed through the slit and a multi-wavelength detector having a plurality of photodetection elements that detect the light split by the concave diffraction grating and each of the plurality of photodetection elements included in the multi-wavelength detector is arranged at an image position of the concave diffraction grating 1. A spectrophotometer , comprising:a light source;a condenser lens that collects light emitted from the light source;a slit that diffracts the light collected by the condenser lens;a concave diffraction grating that splits the light passing through the slit; anda multi-wavelength detector having a plurality of photodetection elements that detect the light split by the concave diffraction grating,wherein each of the plurality of photodetection elements included in the multi-wavelength detector is arranged at an image position of the concave diffraction grating.2. The spectrophotometer according to claim 1 ,wherein the multi-wavelength detector further comprises a substrate made of a material having the same linear expansion coefficient as that of a main substrate constituting the concave diffraction grating and a flexible wiring substrate having the plurality of photodetection elements arranged thereon.3. The spectrophotometer according to claim 2 ,{'b': '303', 'wherein a surface of the substrate on which the flexible wiring substrate is fixed is curved.'}4. The spectrophotometer according to claim 3 ,wherein groove periods of grooves provided on the surface of the concave diffraction grating are regular, andwherein the plurality of photodetection elements are arranged on a Rowland circle.5. The spectrophotometer according to claim 3 ,wherein groove periods of grooves provided on the surface of the ...

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Номер записи: 43
03-02-2022 дата публикации

GAS DETECTOR

Номер: US20220034797A1
Автор: BRYZGALOV Maksym, Martin Hans, Olsson Mats, RODJEGARD Henrik
Принадлежит: ASAHI KASEI MICRODEVICES CORPORATION

The present invention is directed to a gas detector configured to improve response speed of a gas sensor. A gas detector includes a housing, a gas sensor main body installed in the housing, and a partition wall provided in the housing and limiting the surrounding of the gas sensor main body to separate from the other area. The housing or the partition wall includes an opening portion directly connected from the outside to an area inside the partition wall. 1. A gas detector comprising:a housing;a gas sensor main body installed in the housing; anda partition wall provided in the housing and limiting a surrounding of the gas sensor main body to separate from an other area,wherein the housing or the partition wall includes an opening portion directly connected from an outside to an area inside the partition wall.2. The gas detector according to claim 1 , wherein a volume of the area inside the partition wall is equal to or less than half a volume of the other area.3. The gas detector according to claim 1 , further comprising an inlet cover configured to cover the opening portion.4. The gas detector according to claim 1 , wherein an electronic component in arranged in the other area of the housing; and wherein only the area inside the partition wall is connected to the outside by the opening portion.5. The gas detector according to claim 1 , further comprising a metal cage arranged to surround the surrounding of the gas sensor main body in the area inside the partition wall and heated by a heater.6. The gas detector according to claim 5 , wherein the cage includes a plurality of air holes.7. The gas detector according to claim 5 , wherein the cage is soldered to a copper surface portion of a printed circuit board mounted with the gas sensor main body claim 5 , the cage being combined with the copper surface portion to serve as a Faraday cage to protect the gas sensor main body from electromagnetic interference/radio frequency interference (EMI/RFI) from surrounding ...

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Номер записи: 44
19-01-2017 дата публикации

GAS SENSOR WITH INTEGRATED OPTICS AND REFERENCE CELL

Номер: US20170016817A1
Автор: Barwicz Tymon, Green William M., Martin Yves C., Orcutt Jason S., TOMBEZ Lionel
Принадлежит:

A method of fabricating a gas sensor on a substrate and a gas sensor fabricated on a substrate that includes optical and electronic components are described. The method includes fabricating a laser to output light over a range of wavelengths within a waveguide, fabricating a splitter to split the light output by the laser to a reference waveguide and to a detection waveguide, fabricating a reference cell to house the reference waveguide and a reference gas. An output of the reference waveguide is coupled to a first optical detector and an output of the detection waveguide is coupled to a second optical detector to identify or quantify an ambient gas. 110-. (canceled)11. A gas sensor fabricated on a substrate that includes optical and electronic components , the sensor comprising:a laser configured to output light in a range of wavelengths within a waveguide;a splitter configured to split the light output by the laser to a reference waveguide and to a detection waveguide;the reference waveguide configured to expose the light to a reference gas and output a reference light, wherein the reference light exhibits a change in intensity from the light at wavelengths corresponding with an absorption spectrum of the reference gas;a reference cell configured to hermetically seal the reference gas and house the reference waveguide;the detection waveguide configured to expose the light to ambient gas; andfirst and second optical detectors configured to receive light output from the reference waveguide and the detection waveguide, respectively, wherein the ambient gas is identified based on outputs of the first detector and the second detector.12. The sensor according to claim 11 , further comprising a III-V die on the substrate claim 11 , wherein the laser is formed on the III-V die.13. The sensor according to claim 12 , wherein the first detector and the second detector are also formed on the III-V die.14. The sensor according to claim 12 , further comprising optical couplers ...

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Номер записи: 45
19-01-2017 дата публикации

GAS SENSOR WITH INTEGRATED OPTICS AND REFERENCE CELL

Номер: US20170016819A1
Автор: Barwicz Tymon, Green William M., Martin Yves C., Orcutt Jason S., TOMBEZ Lionel
Принадлежит:

A method of fabricating a gas sensor on a substrate and a gas sensor fabricated on a substrate that includes optical and electronic components are described. The method includes fabricating a laser to output light over a range of wavelengths within a waveguide, fabricating a splitter to split the light output by the laser to a reference waveguide and to a detection waveguide, fabricating a reference cell to house the reference waveguide and a reference gas. An output of the reference waveguide is coupled to a first optical detector and an output of the detection waveguide is coupled to a second optical detector to identify or quantify an ambient gas. 1a laser configured to output light in a range of wavelengths within a waveguide;a splitter configured to split the light output by the laser to a reference waveguide and to a detection waveguide;the reference waveguide configured to expose the light to a reference gas and output a reference light, wherein the reference light exhibits a change in intensity from the light at wavelengths corresponding with an absorption spectrum of the reference gas;a reference cell configured to hermetically seal the reference gas and house the reference waveguide, the reference cell including back-end layers that include electrical circuits, a dielectric layer that is transparent to the light, and a sealing liner over the back-end layers, a volume of the reference cell being defined by a thickness of the back-end layers and a thickness of the dielectric layer;the detection waveguide configured to expose the light to ambient gas; andfirst and second optical detectors configured to receive light output from the reference waveguide and the detection waveguide, respectively, wherein the laser and the first and second optical detectors are arranged on a III-V die, the ambient gas is identified based on outputs of the first detector and the second detector, and the laser is tuned based on an absorption wavelength of the reference gas.. A gas ...

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Номер записи: 46
21-01-2016 дата публикации

GAS-SENSOR ARRANGEMENT FOR DETECTING TARGET-GAS CONCENTRATION

Номер: US20160018321A1
Автор: MOENKEMOELLER Ralf
Принадлежит:

An NDIR gas-sensor arrangement for measuring a target-gas concentration comprises a variable-power infrared-radiation emitter that can project radiant energy from one side of a space containing the target gas and through the space to the other side thereof, a infrared-radiation receiver on the other side of the space and positioned to be irradiated by the radiant energy projected by the emitter through the space for emitting a signal corresponding to radiation received, and a filter between the receiver and the space and permeable only to radiation of a wavelength range that corresponds to the target gas. A controller connected to the radiation receiver calculates the target-gas concentration on the basis of the signal from the receiver to the controller.

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Номер записи: 47
21-01-2016 дата публикации

GAS-SENSOR ARRANGEMENT FOR DETECTING TARGET-GAS CONCENTRATION

Номер: US20160018330A1
Автор: MOENKEMOELLER Ralf
Принадлежит:

A gas-sensor arrangement for measuring a target-gas concentration has first and second separate nondispersive infrared-radiation emitters to one side of a space containing the target gas and set to project respective first and second beams of infrared light from the one side through the space to the other side thereof. An infrared-radiation receiver on the other side of the space is positioned to be irradiated by the radiant energy projected by the emitters through the space for emitting a signal corresponding to radiation received, one of the emitters being optically farther from the receiver than the other of the emitters. A filter between the receiver and the space and is permeable only to radiation of a wavelength range that corresponds to the target gas. A controller connected to the radiation receiver determines the target-gas concentration on the basis of the signal from the receiver.

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Номер записи: 48
18-01-2018 дата публикации

METHOD AND APPARATUS FOR THE ANALYSIS OF MATERIALS

Номер: US20180017478A1
Автор: Drinovec Luka, Hansen Anthony D. A., MOCNIK Grisa
Принадлежит:

An apparatus and method are presented for the analysis of materials. The apparatus includes two or more similar analyzers, with the output of the analyzers combined to provide improved measurements. The apparatus may be, for example, a differential photometric analyzer, such as the AETHALOMETER®. The apparatus includes a processor programmed to accept an instrument constant determined at low filter loadings and use the constant to compensate for non-linear instrument responses. A method is also presented for conditioning filters before use. 1. An apparatus to measure constituents of interest in a sample having a concentration , B , said apparatus comprising:{'b': 1', '1', '1', '1, 'a first analyzer including a first filter portion having a first area, C, operable to accumulate constituents of interest in a first portion of the sample having a first flow rate, F, and a detector operable to measure a first attenuation as a function of time, A, of the constituent of interest on said first filter and provide a first measure of B, B;'}{'b': 2', '2', '2', '2, 'a second analyzer including a second filter portion having a second area, C, operable to accumulate constituents of interest in a second portion of the sample having a second flow rate, F, and a detector operable to measure a second attenuation as a function of time, A, of the constituent of interest on the second filter and provide a second measure of B, B; and'}a processing device having a processor operable to receive the first detector and second detector measurements and provide an indication of the constituents of interest in the flow, where the processor is programmed to determine an estimate of the concentration of the constituents of interest by:{'b': '1', 'receiving an instrument calibration, P, where P is determined for the apparatus in the limit of A→0,'}{'b': 1', '2, 'determining current values of F and F,'}{'b': 1', '2, 'determining current values of A and A, and'}{'b': 1', '1', '1', '2', '2', '2, ' ...

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Номер записи: 49
18-01-2018 дата публикации

Optical Computing Devices For Measurement In Custody Transfer Of Pipelines

Номер: US20180017500A1
Автор: Pelletier Michael T., Perkins David L.
Принадлежит: Halliburton Energy Services, Inc.

A device including an integrated computational element (ICE) positioned to optically interact with electromagnetic radiation from a fluid and to thereby generate optically interacted radiation corresponding to a characteristic of the fluid, and a method for using the system are provided. The device includes a detector positioned to receive the optically interacted radiation and to generate an output signal proportional to an intensity of the optically interacted radiation. And the device further includes a processor positioned to receive the output signal and to determine the characteristic of the fluid. The device is coupled to a controller configured to provide instructions to a transfer system for storage and readout. 1. A device comprising:an integrated computational element (ICE) positioned to optically interact with electromagnetic radiation from a fluid and to thereby generate optically interacted radiation corresponding to a characteristic of the fluid;a detector positioned to receive the optically interacted radiation and to generate an output signal proportional to an intensity of the optically interacted radiation; anda processor positioned to receive the output signal and to determine the characteristic of the fluid, whereinthe device is coupled to a controller configured to provide instructions to a transfer system for storage and readout.2. The device of claim 1 , wherein the transfer system is a lease automatic custody transfer (LACT) system positioned upstream from a contractor pipeline in an oil and gas production configuration claim 1 , and the LACT system is configured to modify a flow and composition of the fluid when the characteristic of the fluid is below a quality parameter.3. The device of claim 1 , wherein the fluid includes liquid crude oil and the ICE is configured to detect a contaminant in the liquid crude oil claim 1 , the contaminant including a residual additive for oil production claim 1 , water claim 1 , or natural gas.4. The ...

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Номер записи: 50
17-01-2019 дата публикации

OPTICAL METHOD FOR PREDICTING TREATMENT RESPONSE, SURVIVAL AND RECURRENCE OF ESOPHAGEAL CANCER PATIENTS

Номер: US20190017925A1
Автор: HOU MAX TI-KUANG, HSU I-JEN, LEE JANG-MING, YANG PEI-WEN
Принадлежит:

The present invention provides an optical method for predicting treatment response, survival and recurrence of esophageal cancer patients, comprising analyzing the spectral signatures of patient's tumor tissue spectra. By the features of the present invention, the prediction result achieves the sensitivity of 75% and specificity of 73.3% in concurrent chemoradiotherapy (CCRT) response; the survival prediction rate achieves the sensitivity of 100%; the recurrence prediction rate achieves the sensitivity of 85.7%. 1. An optical method for predicting treatment response of esophageal cancer patients , comprising:obtaining an optical absorption spectrum of a tumor tissue sample from an esophageal cancer patient, the optical absorption spectrum of the tumor tissue sample is a visible optical absorption spectrum;normalizing the optical absorption spectrum of the tumor tissue sample, incorporating into a pre-stored database and grouping by a principal component analysis; wherein a plural of spectral variables of principal component analysis are obtained from wavelength of 450-475 nm and 625-650 nm; andgrouping all the spectra by PC_7 and PC_2 value of the principal component analysis to determine the esophageal cancer patient is identified as having good response or poor response to the treatment;wherein the treatment is concurrent chemoradiotherapy.2. The optical method according to claim 1 , wherein the optical absorption spectrum of the tumor tissue sample is an optical absorption spectrum captured by a wavelength from 450 to 650 nm.3. The optical method according to claim 1 , wherein the optical absorption spectrum of the tumor tissue sample is a transmission absorption spectrum.4. The optical method according to claim 1 , wherein the pre-stored database is pre-stored an effective amount of normalized optical absorption spectra of tumor tissue samples.5. An optical method for predicting survival of esophageal cancer patients claim 1 , comprising:obtaining an optical ...

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Номер записи: 51
17-01-2019 дата публикации

OPTICAL SYSTEM

Номер: US20190017926A1
Автор: Krätschmer Thilo, Müller Frank, Vaca-Torres Alejandro
Принадлежит:

The invention relates to an optical system for measuring the absorption of light in a medium, comprising at least one light source for sending light and at least one optical detector, which receives the light and converts it into an electrical signal. The system is characterized in that the system comprises at least one light guide, wherein, in the region of the light source, light is coupled as reference light into the light guide, wherein the light guide is guided, at least in sections, past the medium, and wherein the light guide guides the reference light onto the detector. 1. An optical system for measuring the absorption of light in a medium , comprising:a light source for sending light;an optical detector embodied to receive the light and to convert the received light into an electrical signal; anda first light guide, wherein, in the region of the light source, the first light guide is embodied to couple light as reference light into the first light guide and to guide the reference light past the medium, at least in sections, and onto the optical detector.2. The optical system according to claim 1 , wherein light is radiated by the light source as measurement light in the direction of the medium and guided by the first light guide onto the detector after absorption in the medium.3. The optical system according to claim 2 , further comprising:a light selector configured to switch the light of the light source between measurement light and reference light.4. The optical system according to one of claim 2 , wherein the first light guide is designed in the shape of a Y claim 2 , and wherein a first branch leads in the direction of the optical detector claim 2 , a second branch guides the reference light claim 2 , and a third branch guides the measurement light.5. The optical system according to claim 1 , which comprises exactly one light guide.6. The optical system according to claim 2 , further comprising:a second light guide for reference light, wherein the ...

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Номер записи: 52
17-01-2019 дата публикации

GAS ANALYSIS APPARATUS, PROGRAM FOR GAS ANALYSIS APPARATUS, AND GAS ANALYSIS METHOD

Номер: US20190017927A1
Автор: TAKAHASHI Motonobu
Принадлежит: HORIBA, LTD.

A gas analysis apparatus includes a calibration curve data storage section designed to store N types of calibration curve data which are previously created for N types of measurement target components and obtained by correcting influences of other N- types of measurement target components with respect to a concentration of each of the measurement target components, and a concentration calculation section designed to calculate a concentration of each of the measurement target components by using the N types of calibration curve data. When there exists a subthreshold component whose concentration calculated by the concentration calculation section is not more than a predetermined threshold value, the concentration calculation section calculates a concentration of each of the measurement target components other than the subthreshold component by using calibration curve data obtained without correcting an influence of the subthreshold component. 1. A gas analysis apparatus designed to calculate a concentration of a measurement target component by using calibration curve data indicating a relationship between an optical spectrum obtainable by irradiating light to a sample gas and a concentration of the measurement target component contained in the sample gas , the gas analysis apparatus comprising:a calibration curve data storage section designed to store N types of calibration curve data which are previously created for N types of measurement target components and obtained by correcting influences of other N-1 types of measurement target components with respect to a concentration of each of the measurement target components; anda concentration calculation section designed to calculate a concentration of a measurement target component by using the N types of calibration curve data,wherein, when there exists a subthreshold component whose concentration calculated by the concentration calculation section is not more than a predetermined threshold value, the concentration ...

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Номер записи: 53
17-01-2019 дата публикации

EXPLOSIVES DETECTOR AND METHOD FOR DETECTING EXPLOSIVES

Номер: US20190017928A1
Автор: BLAHA JIRI, DUPAC JAN, MÁZL ROMAN, ZÁSTERA MICHAL
Принадлежит:

An explosives detector includes an infrared sampler having a flat infrared radiation source suitable for release of a solid explosive sample from a surface of a scanned subject using a wavelength of an infrared radiation, and a thermal decomposition unit having a silica glass tube with a silica glass tube gas inlet located in the flat infrared radiation source, wherein the silica glass tube is equipped with a heating element, the thermal decomposition unit being suitable for decomposing the solid explosive sample into a plurality of explosive molecular fragments. The explosives detector further includes a detector cartridge, having a cartridge body with a detection liquid inside, a molecular detection membrane fully submerged under a level of the detection liquid, and a sensing cap, where each explosive molecular fragment is detected by said detector cartridge and a single photon optical detection unit in communication with detector cartridge to provide a data stream indicative of explosive molecular fragment's presence in the solid explosive sample. 1. Explosives detector configured to perform sampling , thermal decomposition and detection , the explosives detector comprising{'b': 1', '5, 'a) an infrared sampler () having a flat infrared radiation source () suitable for release of a solid explosive sample from a surface of a scanned subject using a wavelength of an infrared radiation,'}{'b': 2', '10', '5', '2, 'b) a thermal decomposition unit () having a silica glass tube with a silica glass tube gas inlet () located in the flat infrared radiation source (), wherein the silica glass tube is equipped with a heating element, the thermal decomposition unit () being suitable for decomposing the solid explosive sample into a plurality of explosive molecular fragments,'}{'b': 20', '24', '21', '23', '20, 'c) a detector cartridge (), having a cartridge body () with a detection liquid inside, a molecular detection membrane () fully submerged under a level of the detection ...

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Номер записи: 54
16-01-2020 дата публикации

DEVICE AND METHOD FOR OPTICAL ANALYSIS USING MULTIPLE INTEGRATED COMPUTATIONAL ELEMENTS

Номер: US20200018162A1
Автор: DAI BIN, Jones Christopher Michael, PRICE James M.
Принадлежит:

A method including generating integrated computational element (ICE) models and determining a sensor response as the projection of a convolved spectrum associated with a sample library with a plurality of transmission profiles determined from the ICE models. The method includes determining a regression vector based on a multilinear regression that targets a sample characteristic with the sensor response and the sample library and determine a plurality of regression coefficients in a linear combination of ICE transmission vectors that results in the regression vector. The method further includes determining a difference between the regression vector and an optimal regression vector. The method may also include modifying the ICE models when the difference is greater than a tolerance, and fabricating ICEs based on the ICE models when the difference is within the tolerance. A device and a system for optical analysis including multiple ICEs fabricated as above, are also provided. 1. A method , comprising:generating a plurality of integrated computational element (ICE) models;determining a sensor response from a projection of a plurality of ICE transmission vectors associated with the plurality of ICE models and a convolved spectrum associated with a sample library;determining a regression vector based on a multilinear regression that targets a sample characteristic from the sample library and the sensor response;determining a plurality of regression coefficients in a linear combination of the plurality of ICE transmission vectors that results in the regression vector;determining a difference between the regression vector and an optimal regression vector associated with the sample characteristic;modifying the plurality of ICE models when the difference between the regression vector and the optimal regression vector is greater than a selected tolerance; andfabricating a plurality of ICEs based on the plurality of ICE models when the difference between the regression vector ...

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Номер записи: 55
16-01-2020 дата публикации

Detection Assembly and Method for Producing Detection Assemblies

Номер: US20200018692A1
Автор: Singer Frank, Sperl Matthias
Принадлежит:

A detection assembly and a method for producing a detection assemblies are disclosed. In an embodiment a detection arrangement includes an emitter configured to generate radiation having a peak wavelength in an infrared spectral range, a detector configured to receive the radiation, a mounting surface comprising at least a first contact surface and a second contact surface for external electrical connection of the detection arrangement, a form body adjoining the emitter and the detector at least in places and deflection optics, on which the radiation impinges during operation of the detection arrangement so that an optical path is formed between the emitter and the detector by the deflection optics, wherein the deflection optics include a scattering body into which the radiation enters during the operation through a surface of the scattering body facing the emitter. 120-. (canceled)21. A detection arrangement comprising:an emitter configured to generate radiation having a peak wavelength in an infrared spectral range;a detector configured to receive the radiation;a mounting surface comprising at least a first contact surface and a second contact surface for external electrical connection of the detection arrangement;a form body adjoining the emitter and the detector at least in places; anddeflection optics, on which the radiation during operation of the detection arrangement impinges so that an optical path is formed between the emitter and the detector by the deflection optics,wherein the deflection optics comprise a scattering body into which the radiation enters during the operation through a surface of the scattering body facing the emitter.22. The detection arrangement according to claim 21 , wherein the detection arrangement is a surface-mounted device.23. The detection arrangement according to claim 21 , wherein each of the emitter and the detector is electrically conductively connected via a through-connection through the form body to the first contact ...

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Номер записи: 56
16-01-2020 дата публикации

SPECTROMETRY DEVICE AND SPECTROMETRY METHOD

Номер: US20200018698A1
Автор: Okada Masanori
Принадлежит: YOKOGAWA ELECTRIC CORPORATION

A spectrometry device includes a switch and a converter. The switch acquires a first reception signal and a second reception signal that respectively include information relating to an optical spectrum and switches between outputting the first reception signal and outputting the second reception signal based on control by a controller. The converter converts the first reception signal or the second reception signal output from the switch into a digital signal. 1. A spectrometry device , comprising: acquires a first reception signal and a second reception signal that respectively include information relating to an optical spectrum;', 'controls switching between outputting the first reception signal and outputting the second reception signal; and', 'converts the switched-to first reception signal or the second reception signal into a digital signal., 'a processor that2. The spectrometry device of claim 1 , wherein:the processor further causes a second time period to be shorter than a first time period when converting the switched-to first reception signal or the second reception signal into the digital signal,conversion of the first reception signal is repeated during the first time period, andconversion of the second reception signal is repeated during the second time period.3. The spectrometry device of claim 2 , wherein the processor further:analyzes an optical spectrum based on the converted first reception signal when the first time period is reached from switching to the first reception signal from the second reception signal.4. The spectrometry device of claim 2 , wherein the processor further:adds a repetition of the second time period,determines whether the added repetition of the second time period arrives at a predetermined time period set in advance, andanalyzes an optical spectrum based on the converted second reception signal during the added repetition of the second time period when it is determined that the added repetition of the second time period ...

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Номер записи: 57
16-01-2020 дата публикации

RESPIRATION GAS MONITOR WITH AUTOMATED AND NONOBTRUSIVE FILTER CALIBRATION

Номер: US20200018735A1
Автор: Gerety Eugene Peter
Принадлежит:

A respiration gas monitor (RGM) device includes an infrared light source () launching infrared light () through a respired air flow path (), and an optical detector () that detects the infrared light after passing through the respired air flow path. An absorption line bandpass filter () has a passband encompassing an absorption line of a target gas. A reference line bandpass filter () has a passband over which the respired air is transparent. A control device () switches the RGM device between: a monitoring state in which the absorption line bandpass filter is in the path of the infrared light; and a calibration state in which the reference line bandpass filter is in the path of the infrared light and the absorption line bandpass filter is not in the path of the infrared light. 1. A respiration gas monitor (RGM) device comprising:a respired air flow path for carrying respired air;an infrared light source arranged to launch infrared light through the respired air flow path;an optical detector arranged to detect the infrared light after passing through the respired air flow path;an absorption line bandpass filter having a passband that encompasses an absorption line of a target gas;a reference line bandpass filter having a passband over which the respired air is transparent; and a monitoring state in which the absorption line bandpass filter is in the path of the infrared light and the reference line bandpass filter is not in the path of the infrared light, and', an electro-optical beam steering device operable at:', {'b': '1', 'a first electric bias implementing the monitoring state by steering the infrared light to an optical path (P) that passes through the absorption line bandpass filter and does not pass through the reference line bandpass filter, and'}, {'b': '2', 'a second electric bias implementing the calibration state by steering the infrared light to an optical path (P) that passes through the reference line bandpass filter and does not pass through ...

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Номер записи: 58
17-04-2014 дата публикации

Apparatus and System for Determining, Optimizing or Monitoring at Least One Process Variable

Номер: US20140107940A1
Автор: Altendorf Matthias
Принадлежит: Endress + Hauser GmbH + Co. KG

An apparatus for determining or monitoring at least one process variable, comprising: a sensor element and a measuring electronics, which form a measuring unit; and at least one control/evaluating/calculating unit arranged removed from the measuring unit; and/or an in/output unit arranged removed from the measuring unit and the control/evaluating/calculating unit. The control/evaluating/calculating unit and the in/output unit are connected with the measuring unit via a first interface and a second interface. The measuring electronics operates the sensor element and forwards the measurement signals via the interfaces to the control/evaluating/calculating unit as unprocessed, raw, measured values. The control/evaluating/calculating unit arranged removed from the measuring unit determines, improves and/or monitors the process variable based on the raw, measured values and makes such available via the in/output unit. 111-. (canceled)12. An apparatus for determining or monitoring at least one process variable , comprising:a sensor element and a measuring electronics, which form a measuring unit;at least one control/evaluating/calculating unit arranged removed from said measuring unit; and/oran in/output unit arranged removed from said measuring unit and said control/evaluating/calculating unit, wherein:said control/evaluating/calculating unit and said in/output unit are connected with said measuring unit via a first interface, and a second interface;said measuring electronics operates said sensor element and forwards the measurement signals via said interfaces to said control/evaluating/calculating unit as unprocessed, raw, measured values;said control/evaluating/calculating unit arranged removed from said measuring unit determines, improves and/or monitors the process variable based on the raw, measured values and makes such available via said in/output unit; andthe process variable is at least one gas composition and/or gas concentration.13. The apparatus as claimed in ...

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Номер записи: 59
26-01-2017 дата публикации

Methods and Apparatuses for Spectral Qualification of Fuel Properties

Номер: US20170023538A1
Автор: Mertens Daniel C.
Принадлежит:

A method for determining property values of fuels may include using spectral data collected from one or more other fuels or fuel components. The method may include construction of spectral data representative of a fuel by weighting spectral data for another fuel and spectral data for one or more fuel components. 1. A method of qualifying a fuel , the method comprising:obtaining spectral data for a first fuel;combining the spectral data for said first fuel with spectral data for one or more fuel components to construct spectral data representative of a group of second fuels, said construction comprising weighting the spectral data for said first fuel and the spectral data for said one or more fuel components according to amounts of said first fuel and amounts of said one or more fuel components as suitable for making different members among said group of second fuels;determining one or more property values for member second fuels among said group of second fuels by comparing said constructed spectral data to calibration data; andqualifying one or more member second fuels from among said group of second fuels based on said one or more property values.2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. The method of wherein said group of second fuels includes second fuels that include a varying amount of an adjustable fuel component over a test range.8. The method of wherein said adjustable fuel component is ethanol; and wherein said test range includes a range from about 1% to about 25% by volume.9. The method of wherein said adjustable fuel component is varied in a substantially continuous manner over said test range.10. The method of further comprising estimating a cost for making different members among said group of second fuels.11. (canceled)12. (canceled)13. A method of determining a property value of a property for a fuel claim 1 , the method comprising:obtaining spectral data for a first fuel;combining the spectral data for said first fuel with ...

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Номер записи: 60
10-02-2022 дата публикации

FTIR Spectrometer with Optical Filter for Low Level Gas Detection such as Formaldehyde and Ethylene Oxide

Номер: US20220042850A1
Автор: Spartz Martin L.
Принадлежит:

A gas analysis system with an FTIR spectrometer preferably utilizes a long path gas cell, a narrow band detector, and an optical filter that narrows the detection region. The interferograms are further prevent baseline drift and analyze the resultant spectra. 1. A Fourier transform infrared spectrometry system , comprising:a source for generating light;an interferometer for receiving the light;a sample cell containing a gas sample;a narrowband detector for detecting the light after passing through the sample gas; anda bandpass filter for filtering light prior to being detected the detector, with the interferometer providing resolution within a bandpass of the bandpass filter.2. The system of claim 1 , wherein the detector is a MCT detector.3. The system of claim 1 , wherein the detector has at least an 8 μm cutoff.4. The system of claim 1 , wherein the detector has at least a 5 μm cutoff.5. The system of claim 1 , wherein the optical filter has a bandpass of less than 450 cm.6. The system of claim 1 , wherein the optical filter has a bandpass of less than 300 cm.7. The system of claim 1 , wherein peak detectivity “D*” of the detector is higher than 1×10.8. The system of claim 1 , further comprising a controller detecting an output of the detector as the interferometer is scanned and processing interferograms within the bandpass of the bandpass filter at two resolutions and using the interferograms processed at a lower resolution as a background for interferograms processed at a higher resolution.9. The system of claim 8 , wherein the controller employs cosine apodization.10. The system of claim 8 , wherein the controller adds a filter spectrum of the filter into a regression analysis.11. A spectrometry method claim 8 , comprising:analyzing a gas sample with a Fourier transform infrared spectrometer;detecting the light after passing through the sample gas; andfiltering light prior to being detected.12. The method of claim 11 , wherein the light is detected with a MCT ...

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Номер записи: 61
10-02-2022 дата публикации

MODELING THE EMISSION INTENSITY OF AN IR EMITTER BY VARYING THE EMISSION SURFACE

Номер: US20220042852A1
Автор: Biesinger Daniel, Bittner Achim, Dehe Alfons
Принадлежит:

The invention relates to a modulatable infrared emitter comprising a MEMS heating element and an actuator, wherein the actuator triggers shape and/or structure changes of the MEMS heating element. Said change in shape and/or structure of the MEMS heating element may vary the ratio of the emitting area to the total area, thereby producing a change in intensity of the emitted infrared beam. The invention further relates to a manufacturing method for the infrared emitter, a method for modulated emission of infrared radiation using the infrared emitter, and preferred uses of the infrared emitter. In further preferred aspects the invention relates to a system comprising the infrared emitter and a control device for regulating the actuator. 1. Modulatable infrared emitter comprising:a heating element, andan actuatorwherein the heating element is a MEMS heating element comprising heatable regions for emitting infrared radiation in an emission direction which is substantially perpendicular to a total area of the MEMS heating element, the projection of the heatable regions in the emission direction forming an emission area and the area spanned by the MEMS heating element forming the total area, and the actuator being configured to change the shape and/or structure of the MEMS heating element between a first and a second state, so that the ratio of the emission area to the total area of the MEMS heating element is smaller by at least a factor of 2 in the first state than in the second state.2. Modulatable infrared emitter according to claim 1 , wherein the intensity of the infrared radiation emitted by the MEMS heating element in the emission direction is lower in the first state than in the second state by a factor of 2.3. Modulatable infrared emitter according to claim 1 , wherein the MEMS heating element comprises a spring structure and the actuator is a linear actuator configured for compression and/or extension of the spring structure.4. Modulatable infrared emitter ...

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Номер записи: 62
10-02-2022 дата публикации

REACTION VESSEL FOR AUTOMATIC ANALYZER

Номер: US20220042902A1
Автор: Matsuoka Yuya, Takada Eiichiro
Принадлежит: Hitachi High-Tech Corporation

A reaction vessel capable of measuring a light amount from a reaction liquid without degrading a function of maintaining the reaction vessel at a predetermined temperature is provided. A reaction vessel including a cylindrical shape centered on a first axis, in which an overall length in a first axis direction is longer than an overall length in a second axis direction and an overall length in a third axis direction, the second axis being perpendicular to the first axis and the third axis being perpendicular to the first axis and the second axis. The reaction vessel includes: an opening part which dispenses a liquid at a portion on one end side in the first axis direction; a first flat surface and a second flat surface which is substantially parallel to the first flat surface. 1. A reaction vessel with a cylindrical shape centered on a first axis which is used in an automatic analyzer for analyzing at least a part of a specimen using a process of measuring absorbance , an overall length in a first axis direction being longer than an overall length in a second axis direction and an overall length in a third axis direction , the second axis being perpendicular to the first axis and the third axis being perpendicular to the first axis and the second axis , the reaction vessel comprising:an opening part which dispenses a liquid at a portion on one end side in the first axis direction;a first flat surface which has one side extending in the first axis direction and the other side extending in the second axis direction from a portion on the other end side in the first axis direction; anda second flat surface which is substantially parallel to the first flat surface at a portion facing the first flat surface in the third axis direction, whereinportions on side surfaces of the first flat surface and the second flat surface are formed to bend in a direction toward an outer side of the reaction vessel, anda length of the first flat surface and the second flat surface in the ...

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Номер записи: 63
10-02-2022 дата публикации

Gas sensor with two switchable filters and method for operating such a gas sensor

Номер: US20220042903A1
Автор: Britta GREENBERG-FISMEN, Håkon Sagberg, Thor Christian HOBÆK
Принадлежит: Draeger Safety AG and Co KGaA

A gas sensor ( 2 ) distinguishes between a target gas and a contaminant and includes a light source ( 8 ), a measurement volume ( 4 ), a detector ( 22 ), and an adaptable filter system ( 20 ) with a first optical filter and a second optical filter. The filter system switches between a first composite state, with both filters in a reference state, a second composite state, with the first filter in a first reference state and the second filter in a second measurement state, a third composite state with the first filter in a first measurement state and the second filter in a second reference state, and a fourth composite state, with both filters in a measurement state. The gas sensor detects a target gas and makes a determination as to a presence of the contaminant by comparing the respective detector signals, generated during at least three of the composite states, with each other.

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Номер записи: 64
24-01-2019 дата публикации

LASER ABSORPTION SPECTROSCOPY ISOTOPIC GAS ANALYZER

Номер: US20190025199A1
Автор: Koulikov Serguei
Принадлежит:

The present invention provides systems and methods for measuring the isotope ratios of one or more trace gases based on optical absorption spectroscopy methods. The system includes an optical cavity containing a gas. The system also includes a laser optically coupled with the optical cavity, and a detector system for measuring absorption of laser light by the gas in the cavity. 1. A gas analyzer system for measuring an isotopic ratio of gas species by an optical absorption spectroscopy method , the system comprises: an optical cavity containing a gas with chemical species to be measured; one or more lasers optically coupled to the optical cavity; a detector system for measuring absorption of laser light by the gas in the cavity; and an intelligence module comprising a processor adapted to determine a concentration ratio of the two different isotopologues , wherein rotational-vibrational spectra are measured at least at two non-overlapping spectral regions separated by at least 50 nm and selected in such a way that a first rotational-vibrational line of a first rotational-vibrational band of the less abundant isotopologue is located in a first selected spectral region , and a second rotational-vibrational line of a second rotational-vibrational band of the more abundant isotopologue is located in a second selected spectral region , and rotational-vibrational lines of the first band of the less abundant isotopologue are the strongest rotational-vibrational lines of the less abundant isotopologue in the first spectral region , and rotational-vibrational lines of the second band of the more abundant isotopologue are the strongest rotational-vibrational lines of the more abundant isotopologue in the second spectral region , and the line strength of the strongest line of the first rotational-vibrational band of the less abundant isotopologue is two or more times stronger than the line strength of the strongest line of the second rotational-vibrational band of the more ...

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Номер записи: 65
24-01-2019 дата публикации

METHOD OF MEASURING THE RATIO OF ISOTOPOLOGUE CONCENTRATIONS IN THE GAS PHASE

Номер: US20190025201A1
Автор: Koulikov Serguei
Принадлежит:

Method of measuring a ratio of concentrations of two isotopologues of a chemical species in a first gas mixture using an optical absorption spectroscopy based gas analyzer; the method includes measuring the line intensity of a rotational-vibrational line of one isotopologue and the line intensity of another rotational-vibrational line of another isotopologue. The method also includes determining the ratio of two line intensities and comparing it with another ratio measured using another gas analyzer for a gas mixture with known concentration of isotopologues. The second ratio can be measured for the same pair of lines or for different pair of lines. The second ratio can be measured at the same gas temperature or at different gas temperature. The method includes determining a ratio of concentrations of two isotopologues based on two ratios of line intensities and two temperatures. 1) A method of measuring a ratio of concentrations of two isotopologues of a chemical species in a first gas mixture using a first optical absorption spectroscopy based gas analyzer , the method comprising the steps of: i) measuring optical absorption spectra of the first gas mixture in a first spectral range containing a first rotational-vibrational line of a first rotational-vibrational band of a first isotopologue and in a second spectral range containing a second rotational-vibrational line of a second rotational-vibrational band of a second isotopologue at a first gas temperature; ii) based on the measured spectra determining the line intensity of the first rotational-vibrational line of the first rotational-vibrational band of the first isotopologue and the line intensity of the second rotational-vibrational line of the second rotational-vibrational band of the second isotopologue at the first gas temperature; iii) determining a first ratio of the line intensity of the first rotational-vibrational line and the line intensity of the second rotational-vibrational line at the first gas ...

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Номер записи: 66
24-01-2019 дата публикации

DISPLAY DEVICE FOR PHOTOMETRIC ANALYZER

Номер: US20190025209A1
Автор: Horigome Jun, NAKAJIMA Rino, SATO Yoichi
Принадлежит:

To acquire both excellent spectrum and sample image reflecting actual conditions of a sample, and to increase convenience of measurement, provided is a display device for a photometric analyzer, which is configured to irradiate a sample with light to analyze the sample, the display device being configured to display a measurement result of the photometric analyzer, and including: a controller; and a display, which is configured to display an image based on measurement data processed by the controller. The measurement data at least contains a spectrum indicating an intensity of emitted light, which is emitted by the sample irradiated with the light, and a sample image of the sample, which is taken by an imaging device. The display is configured to display the spectrum and the sample image in an arrangement in the same screen. 1. A display device for a photometric analyzer , which is configured to irradiate a sample with light to analyze the sample , the display device being configured to display a measurement result of the photometric analyzer , and comprising:a controller; and the measurement data at least containing a spectrum indicating an intensity of emitted light, which is emitted by the sample irradiated with the light, and a sample image of the sample, which is taken by an imaging device,', 'the display being configured to display the spectrum and the sample image in an arrangement in the same screen., 'a display, which is configured to display an image based on measurement data processed by the controller,'}2. A display device for a photometric analyzer according to claim 1 ,wherein the controller is configured to generate a sample image list including a plurality of sample images, which correspond to wavelengths of a wavelength axis of the spectrum, andwherein the display is configured to display the sample image list in an arrangement so that the sample image list corresponds to the wavelength axis of the spectrum.3. A display device for a photometric ...

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Номер записи: 67
23-01-2020 дата публикации

Earphone Sensors, Systems And Methods Therefore

Номер: US20200025732A1
Автор: Keady John P., Usher John
Принадлежит: Staton Techiya LLC

The application discloses using sensors on eartips and/or earphones to monitor biometrics of a user and/or the ambient environment. 1. An earphone comprising:an earphone;an eartip, where the eartip is configured to fit upon a portion of the earphone; anda biometric sensor, where the biometric sensor is configured to attach to at least one of the eartip and the earphone.2. The earphone according to claim 1 , where the biometric sensor is an infrared (IR) sensor.3. The earphone according to claim 3 , where the biometric sensor measures the spectrum of infrared radiation between a lower wavelength and a larger wavelength.4. The earphone according to claim 3 , where the lower wavelength is 3 microns.5. The earphone according to claim 4 , where the larger wavelength is 7 microns.6. The earphone according to further including a second sensor.7. The earphone according to where the second sensor is configured to be attached to the eartip.8. The earphone according to where the second sensor measures the spectrum of infrared between 6 micron and 15 micron.9. The earphone according to claim 1 , where the biometric sensor measures gas.10. The earphone according to claim 9 , where the gas is CO2.11. A method to monitor gas concentration levels proximal to an earphone comprising:receiving a gas concentration level from a gas sensor mounted on an earphone or an eartip;comparing the received gas concentration level to a threshold level; andissuing an alert if the received gas concentration level is greater than the threshold level.12. A method according to claim 11 , where the received gas concentration level is saved to non volatile flash memory housed in the earphone in which the gas sensor is located.13. The method according to claim 11 , where the received gas concentration level is transmitted via wireless data communication means to a computer server.14. The method according to where the step of issuing the alert of step 3 is a sound alert issued via a loudspeaker housed in ...

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Номер записи: 68
24-04-2014 дата публикации

Thin film emitter-absorber apparatus and methods

Номер: US20140111844A1
Автор: Edward A. Johnson, Irina Puscasu
Принадлежит: Nomadics Inc

Methods and apparatus for providing a tunable absorption-emission band in a wavelength selective device are disclosed. A device for selectively absorbing incident electromagnetic radiation includes an electrically conductive surface layer including an arrangement of multiple surface elements. The surface layer is disposed at a nonzero height above a continuous electrically conductive layer. An electrically isolating intermediate layer defines a first surface that is in communication with the electrically conductive surface layer. The continuous electrically conductive backing layer is provided in communication with a second surface of the electrically isolating intermediate layer. When combined with an infrared source, the wavelength selective device emits infrared radiation in at least one narrow band determined by a resonance of the device. In some embodiments, the device includes a control feature that allows the resonance to be selectively modified. The device has broad applications including gas detection devices and infrared imaging.

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Номер записи: 69
02-02-2017 дата публикации

SYSTEMS AND METHODS FOR PRESSURE DIFFERENTIAL MOLECULAR SPECTROSCOPY OF COMPRESSIBLE FLUIDS

Номер: US20170030829A1
Автор: Saptari Vidi A.
Принадлежит:

Described herein is a spectroscopic system and method for measuring and monitoring the chemical composition and/or impurity content of a sample or sample stream using absorption light spectroscopy. Specifically, in certain embodiments, this invention relates to the use of sample pressure variation to alter the magnitude of the absorption spectrum (e.g., wavelength-dependent signal) received for the sample, thereby obviating the need for a reference or ‘zero’ sample. Rather than use a reference or ‘zero’ sample, embodiments described herein obtain a spectrum/signal from a sample-containing cell at both a first pressure and a second (different) pressure. 15.-. (canceled)6. A method for measuring chemical composition and/or trace impurities in a compressible fluid sample without the need for a ‘zero’ reference , the method comprising:obtaining a first spectrum for a sample cell containing a sample fluid from a spectroscopic system with the sample fluid at a first pressure in the sample cell;obtaining a second spectrum for the sample cell containing the sample fluid from the spectroscopic system with the sample fluid at a second pressure in the sample cell, wherein the first pressure is different from the second pressure;determining a differential absorption spectrum for the sample using the first spectrum and the second spectrum; andidentifying one or more constituents of the sample, and/or identifying a concentration of one or more of the one or more constituents of the sample, using the differential absorption spectrum.7. The method of claim 6 , wherein the sample cell is a flow cell and the sample is drawn from a compressible fluid line.8. The method of claim 7 , wherein the compressible fluid line is a natural gas pipeline stream and wherein the one or more constituents of the sample that are identified comprises one or more members selected from the group consisting of CH claim 7 , CH claim 7 , CH claim 7 , i-CH claim 7 , n-CH claim 7 , CH claim 7 , and CO.9. The ...

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Номер записи: 70
04-02-2016 дата публикации

ESTIMATION OF WATER INTERFERENCE FOR SPECTRAL CORRECTION

Номер: US20160033394A1
Автор: Andersson Greger, Judge Kevin, Zou Peng
Принадлежит:

A method includes decomposing a training set to obtain a principal component matrix having a plurality of principal component vectors. The method also includes variably rejecting portions of a sample spectrum vector that do not correspond to a selected one of the plurality of principal component vectors by incrementally providing a coefficient indicative of the weighting of the selected principal component vector for selected sub-regions. A corrected spectrum vector can be obtained by excluding certain sub-regions of the sample spectrum vector and corresponding principal component vector, multiplying the sample spectrum vector with the principal component matrix for non-excluded sub-regions, providing a predicted interference vector, and subtracting the predicted interference vector from the sample spectrum vector. 1. A computer-implemented method comprising:decomposing a training set to obtain a principal component matrix having a plurality of principal component vectors; selecting a sub-region of the sample spectrum vector and a corresponding sub-region of the selected principal component vector; and', 'multiplying the selected sub-region of the sample spectrum vector with the corresponding sub-region of the selected principal component vector to provide a coefficient indicative of the weighting of the selected principal component vector for the selected sub-regions;, 'variably rejecting portions of a sample spectrum vector that do not correspond to a selected one of the plurality of principal component vectors by incrementallyexcluding sub-regions of the sample spectrum vector and corresponding principal component vector based on the incrementally provided coefficients;multiplying the sample spectrum vector with the principal component matrix for the non-excluded sub-regions to provide a weighting vector indicative of the contribution of the principal component matrix;multiplying the weighting vector by the principal component matrix to provide a predicted ...

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Номер записи: 71
04-02-2016 дата публикации

SYSTEMS AND METHODS OF INFRARED DETECTION OF COAL MINE POLAR GAS

Номер: US20160033396A1
Автор: Depeng Zhang, Haizhu Luo, Wenbin Feng, Yong Sun, Yuntao Liang
Принадлежит: CCTEG (China Coal Technology and Engineering Group Corp)

An infrared detection device can be used to detect coal mine polar gas. The detection device can include a central processor and a gas pool assembly having a moveable optical window. The moveable optical window can include a stationary pool body and a moveable pool body inserted into the stationary pool body. 1. An infrared detection device for detecting coal mine polar gas , comprising:a central processor disposed with an outer casing, the central processor being electrically connected to a power supply, a light source, a detector, an alarm and indication lamp, an input and output module, a data collection and storage module, the power supply also being electrically connected to a power supply switch and a power supply interface, the input and output module also being connected to a computer communication interface, and the data collection and storage module also being electrically connected to the detector, and a gas pool assembly having a moveable optical window and fixed on the device is provided between the light source and the detector;wherein the gas pool assembly having a moveable optical window comprises:a stationary pool body having a gas inlet with a gas inlet valve, a stationary optical window being fixed at a front end of the stationary pool body by a protection cover for the stationary optical window, a rear stop cover being fixed at a rear end of the stationary pool body; anda moveable pool body inserted into the stationary pool body, a moveable optical window being fixed at a front end of the moveable pool body by a protection cover for the moveable optical window, a pull-and-push handle being provided at a rear end of the moveable pool body.2. The infrared detection device of claim 1 , wherein the protection cover for the moveable optical window is provided with a gas discharge groove.3. The infrared detection device of claim 1 , further comprising a gas outlet having a gas outlet valve coupled to the infrared detection device via a micro-air pump4. ...

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Номер записи: 72
01-02-2018 дата публикации

GAS ANALYSIS DEVICE, CONTROL SYSTEM AND CONTROL ASSISTANCE SYSTEM FOR COMBUSTION FACILITY, AND GAS ANALYSIS METHOD

Номер: US20180031233A1
Автор: Kawazoe Kohei, NISHIMIYA Tatsuyuki, OKA Hirotaka
Принадлежит:

A gas analysis device includes: a measurement part configured to measure an absorption amount of a laser light including an absorption wavelength corresponding to at least two electronic level transitions having the same component contained in the combustion gas, by emitting the laser light on a plurality of measurement paths disposed to pass through the combustion gas; a standard setting part configured to set a standard gas concentration distribution and a standard temperature distribution on the basis of a measurement result of the measurement part; and an analysis part configured to obtain the gas concentration distribution and the temperature distribution by solving a function including the gas concentration distribution and the temperature distribution as variables so as to minimize a difference between the absorption amount measured by the measurement part and a standard absorption amount obtained on the basis of the standard gas concentration distribution and the standard temperature distribution. 1. A gas analysis device for analyzing a concentration distribution of a combustion gas in a furnace and a temperature distribution inside the furnace , the gas analysis device comprising:a measurement part configured to measure an absorption amount of a laser light including an absorption wavelength corresponding to at least two electronic level transitions having the same component contained in the combustion gas, by emitting the laser light on a plurality of measurement paths disposed so as to pass through the combustion gas;a standard setting part configured to set a standard gas concentration distribution and a standard temperature distribution on the basis of a measurement result of the measurement part; andan analysis part configured to define the gas concentration distribution and the temperature distribution defined as a function including a common variable parameter and to obtain the gas concentration distribution and the temperature distribution by ...

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Номер записи: 73
01-05-2014 дата публикации

METHOD AND APPARATUS FOR DETECTING AN ANALYTE

Номер: US20140117238A1
Автор: McCann Patrick J.
Принадлежит: The Board of Regents of the University of Oklahoma

Disclosed herein are methods and mid-IR detection apparatus to measure analytes in gas or liquid phase. Solid state cooling of a crystalline lattice is effectively achieved with the controlled flow of charge carriers that absorb thermal energy from the semiconductor material which senses mid-IR photons. Reduction in temperature improves signal-to-noise ratios thus improving molecular sensitivity. In one embodiment the apparatus is used to detect a biomarker. 1. A detection apparatus comprising:a gas-cell defining a detection space;a mid-IR laser configured to project a beam of electromagnetic energy having an infrared spectrum through at least a portion of the detection space, a detection portion configured as a photovoltaic detector and positioned relative to the mid-IR laser to receive at least a portion of the beam of electromagnetic energy, the detection portion generating an electrical signal responsive to receipt of the beam of electromagnetic energy;', 'a cooling portion configured to receive a stimulus and actively move thermal energy away from the detection portion with aid of the stimulus; and', 'an isolation portion between the detection portion and the cooling portion, the isolation portion electrically isolating the detection portion from the cooling portion., 'a mid-IR detection device formed of a monolithically integrated crystalline structure comprising2. The detection apparatus of claim 1 , wherein the detection portion comprises one or more layers forming a photovoltaic pn junction comprising an n-type section and a p-type section.3. The detection apparatus of claim 2 , further comprising independent electrical contacts attached to the n-type section claim 2 , p-type section claim 2 , and cooling portion.4. The detection apparatus of claim 1 , wherein the cooling portion comprises a thermoelectric layer having a series of spatially disposed quantum well sub-layers.5. The detection apparatus of claim 2 , wherein the detection portion comprises at ...

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Номер записи: 74
17-02-2022 дата публикации

AUTOMATED ON-LINE ACTIVE CLAY ANALYZER IN MINERAL SLURRIES

Номер: US20220050050A1
Автор: SUN Ruijun
Принадлежит:

An automated active clay analyzer apparatus for analyzing active clays in a mineral slurry in a vessel or passing through a conduit, comprising a controller operable to manage the operations associated with the apparatus; an automatic sampler coupled to the vessel or conduit and operable to extract a sample of a determined volume of the slurry from the vessel or conduit, the automatic sampler being under control of the controller; at least one fluid delivery device under control of the controller and operable to deliver a known volume of water and a known volume of cationic dye into the sample; a mixing chamber that receives the sample; an agitator operable to agitate the sample, the water and the cationic dye in the mixing chamber to produce a diluted sample mixture; an automatic filter operable to filter the diluted sample mixture to produce a filtrate; and a spectrophotometer having an optical flow cell that receives the filtrate from the automatic filter and is operable to measure a spectra absorbance of the filtrate in the optical flow cell using at least one wavelength to obtain spectra absorbance data of the filtrate that may be used to control the processing of the mineral slurry or other aspects of a mineral processing operation related to the mineral slurry in near real time. 1. An automated active clay analyzer apparatus for analyzing active clays in a mineral slurry in a vessel or passing through a conduit , the apparatus comprising:controller operable to manage the operations associated with the apparatus;an automatic sampler coupled to the vessel or conduit and operable to extract a sample of a determined volume of the slurry from the vessel or conduit, the automatic sampler being under control of the controller;at least one fluid delivery device under control of the controller and operable to deliver a known volume of water and a known volume of cationic dye into the sample;a mixing chamber that receives the sample;an agitator operable to agitate the ...

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Номер записи: 75
17-02-2022 дата публикации

VARIABLE LIGHT DIFFUSER FOR PLANT LEAF GAS EXCHANGE MEASUREMENTS

Номер: US20220050052A1
Автор: Berry Z. Carter, Goldsmith Gregory R., SILVA Fernando
Принадлежит:

Disclosed herein are light diffuser devices comprising a sphere having at least two openings, a track, a light source, a cart, and one or more plates, and their methods of use. Also, disclosed here are light diffuser systems comprising a light diffuser device and a portable infrared gas analyzer. 1. A light diffuser device comprising:a sphere having at least two openings, wherein one opening includes a track and the other opening includes a base having supports;one or more plates positioned on the track; anda cart including a light source positioned on the track.2. The light diffuser device of claim 1 , wherein the base having supports is configured to attach to a gas analyzer.3. The light diffuser device of claim 1 , wherein the base having supports is secured to the sphere via a fastener.4. The light diffuser device of claim 2 , wherein the base having supports slides onto a leaf chamber of the gas analyzer.5. The light diffuser device of claim 2 , wherein the gas analyzer is an infrared claim 2 , portable gas analyzer.6. The light diffuser device of claim 1 , wherein the cart including the light source is positioned at an angle.7. The light diffuser device of claim 1 , wherein the cart including the light source is secured to the track via a fastening mechanism.8. The light diffuser device of claim 6 , wherein the angle is 67.5°.9. The light diffuser device of claim 6 , wherein the angle is 90°.10. The light diffuser device of claim 6 , wherein the angle is 0°.11. The light diffuser device of claim 6 , wherein the angle is denoted by a combination of tick marks and numbers.12. The light diffuser device of claim 11 , wherein the combination of tick marks and numbers are located on an outer portion of one side of the track.13. The light diffuser device of claim 1 , wherein the track is rectangular and runs 120 degrees around the side of the sphere.14. The light diffuser device of claim 1 , wherein the light source is a light-emitting diode.15. The light diffuser ...

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Номер записи: 76
05-02-2015 дата публикации

Twin-focus photothermal correlation spectroscopy method and device for the characterization of dynamical processes in liquids and biomaterials with the help of absorbing markers

Номер: US20150036145A1
Автор: Braun Marco, Cichos Frank, Schachoff Romy, Selmke Markus
Принадлежит: Universität Leipzig

The invention relates to a method and a device for twin-focus photothermal correlation spectroscopy for the characterization of dynamical processes in liquids and biomaterials with the help of absorbing markers. Thereby non-fluorescent absorbing nano objects are heated by an intensity-modulated heating laser which leads to a refractive index gradient lens around the object. This refractive index gradient is detected by a detection laser with a focal volume that, depending on the position of the heated object relative to the focal plane of the detection beam, splits into two-sub-volumes forming a twin-focus comprising two sharply separated parts of a focal volume showing no spatial overlap.

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Номер записи: 77
31-01-2019 дата публикации

TWIN-SPOT LIGHT ABSORBING PARTICULATE MONITORING INSTRUMENT

Номер: US20190033194A1
Автор: DeFreez Richard K., Pottberg Thomas L., Potter Michael A.
Принадлежит: Met One Instruments, Inc.

An apparatus comprising one or more pairs of analyzers measures light absorbing particulates, including black, brown, and ultraviolet light absorbing organic aerosols, suspended in gaseous samples, such as air. One analyzer receives an ambient gas sample, while the other analyzer is coupled to a dilution inlet that mixes ambient gas with a proportion of clean gas, whereby the two received samples have different particulate concentrations. Filters with identical filter areas accumulate particulates as the respective samples flow through with equal flow rate and velocity. An optical source and detector for each filter measures a changing property (e.g. attenuation at one or more wavelengths) as particulates accumulate. A computer uses the differential particulate accumulation from the ambient and diluted samples to compensate for filter loading effects upon the measurement to provide an accurate indication of particulate concentration in the ambient sample. 1. An apparatus to measure constituents of interest in two or more gas samples , comprising:two or more analyzers receiving different samples, each analyzer including a filter to accumulate constituents of interest in a received sample and an optical source and detector to measure a property of accumulated constituents of interest on the filter; anda computer to accept the measurements from each analyzer's detector and to provide an indication of the constituents of interest in each sample,wherein the samples have different compositions or concentrations of the constituents of interest.2. The apparatus as in claim 1 , wherein one or more pairs of the analyzers receive the respective different samples with the same flow rate and upon respective filters of equal area claim 1 , such that a flow velocity through filters is equal in each pair of analyzers.3. The apparatus as in claim 1 , wherein in each of one or more pairs of the analyzers claim 1 , one analyzer is coupled to receive an undiluted gas sample and the ...

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Номер записи: 78
30-01-2020 дата публикации

CARBON ISOTOPE ANALYSIS DEVICE AND CARBON ISOTOPE ANALYSIS METHOD

Номер: US20200033256A1
Автор: HASHIZUME Kenta, IDENO Akira, IGUCHI Tetsuo, Nishizawa Norihiko, OHARA Toshinari, SATOU Atsushi, SONNENSCHEIN Volker, TERABAYASHI Ryohei, TOMITA Hideki
Принадлежит:

A carbon isotope analysis device including a carbon dioxide isotope generator provided with a combustion unit that generates gas containing carbon dioxide isotope from carbon isotope, and a carbon dioxide isotope purifying unit; a spectrometer including an optical resonator having a pair of mirrors and a photodetector that determines intensity of light transmitted from the optical resonator; and a light generator including a light source, a splitter that splits light from the light source, a focusing lens that focuses light from the splitter, and a mirror that reflects light from the focusing lens and sends the light back to the light source via the focusing lens and the splitter. A carbon isotope analysis device improved in stability of a light source and a carbon isotope analysis method by use of the analysis device are provided. 1. A carbon isotope analysis device comprising:a carbon dioxide isotope generator comprising a combustion unit that generates gas containing carbon dioxide isotope from carbon isotope, and a carbon dioxide isotope purifying unit;a spectrometer comprising an optical resonator having a pair of mirrors and a photodetector that determines intensity of light transmitted from the optical resonator; anda light generator comprising a light source, a splitter that splits light from the light source, a focusing lens that focuses light from the splitter, and a mirror that reflects light from the focusing lens and sends the light back to the light source via the focusing lens and the splitter.2. The carbon isotope analysis device according to claim 1 , wherein the light source comprises a mid-infrared quantum cascade laser.3. The carbon isotope analysis device according to claim 1 , wherein the carbon isotope is radioactive carbon isotope C and the carbon dioxide isotope is radioactive carbon dioxide isotope CO.4. The carbon isotope analysis device according to claim 1 , wherein the light having an absorption wavelength of the carbon dioxide isotope ...

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Номер записи: 79
30-01-2020 дата публикации

Assembly and Method for Measuring a Substance Concentration in a Gaseous Medium by Means of Absorption Spectroscopy

Номер: US20200033257A1
Автор: DEGNER Martin, Ewald Hartmut
Принадлежит: SENSATRONIC GMBH

An assembly and a method for measuring a gas concentration by means of absorption spectroscopy, in particular for capnometric measurement of the proportion of COin breathing air in which IR light from a thermal light source is guided through a measuring cell with a gas mixture to be analyzed, and the concentration of the gas to be measured that is contained in the gas mixture is determined by measuring an attenuation of the light introduced into the measuring cell caused by absorption by the gas to be measured. The thermal light source is designed as an encapsulated micro-incandescent lamp with a light-generating coil. 1. An assembly for measuring a gas concentration by means of absorption spectroscopy in which IR light is guided from a thermal light source through a measuring cell with a gas mixture to be analyzed , and the gas concentration of a gas to be measured that is contained in the gas mixture is determined by measuring an attenuation of the light introduced into the measuring cell caused by absorption by the gas to be measured , wherein the assembly has an optical beam path with a thermal light source that generates IR light , the measuring cell that can be filled or is filled with the gas mixture , and a measuring path for the light generated by the thermal light source , one or more sensors as well as one or more bandpass filters that are upstream from the one or more sensors , wherein the assembly furthermore comprises an evaluation apparatus that is designed to determine the gas concentration to be measured from the attenuation of the IR light in the measuring cell , wherein at least one bandpass filter is designed to transmit within a measuring wavelength range in which the gas to be measured absorbs IR light , and at least one bandpass filter is designed to transmit in a reference wavelength range in which the gas to be measured does not absorb IR light or only absorbs a slight amount in comparison to the measuring wavelength range , wherein the ...

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Номер записи: 80
11-02-2016 дата публикации

METHOD AND DEVICE FOR DETECTING AND IDENTIFYING NOT EASILY VOLATILIZED SUBSTANCES IN A GAS PHASE BY MEANS OF SURFACE-ENHANCED VIBRATION SPECTROSCOPY

Номер: US20160041101A1
Автор: Gundrum Lars, Muenchmeyer Wolf, Ungethuem Bert, Wackerbarth Hainer, Walte Andreas
Принадлежит:

The invention relates to identifying not easily volatilized substances, in particular hazardous material, in a gas phase. A measurement cell and gas supply installations connected to the measurement cell are heated, and a plasmonic surface arranged in the measurement cell is temperature-controlled such that the plasmonic surface has a lower temperature than the measurement cell and the gas supply installations. The gas phase is guided through the gas supply installations into the measurement cell such that the gas phase reaches the plasmonic surface. Substances adsorbed out of the gas phase on the plasmonic surface are analyzed by an optical process. Surface-enhanced Raman spectroscopy or surface-enhanced infrared spectroscopy may be used. Selectivity can be increased by combining both methods. Selectivity can be additionally increased by using a gas detector, preferably an ion-mobility spectrometer. Thus the false alarm rate is reduced without a loss of time. 1. A method of identifying of not easily volatilized substances present in a gas phase , the method comprising:heating up a measurement cell and gas supply installations connected to the measurement cell,adjusting a temperature of a plasmonic surface located in the measurement cell so that the plasmonic surface has a lower temperature than the measurement cell and the gas supply installations,supplying the gas phase through the gas supplying installations into the measurement cell so that the gas phase gets to the plasmonic surface,applying an SEVS method including the irradiation of the plasmonic surface with electromagnetic radiation for identifying substances adsorbed on the plasmonic surface out of the gas phase.2. The method of claim 1 , wherein the measurement cell and the gas supply installations are heated up to a temperature of at least 160° C.3. The method of claim 1 , wherein the plasmonic surface is cooled down to a temperature of 80° C. or below.4. The method of claim 1 , wherein the substances ...

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Номер записи: 81
12-02-2015 дата публикации

OPTOPAIRS WITH TEMPERATURE COMPENSABLE ELECTROLUMINESCENCE FOR USE IN OPTICAL GAS ABSORPTION ANALYZERS

Номер: US20150041655A1
Автор: SUCHALKIN SERGEY, TKACHUK Michael
Принадлежит: BAH Holdings LLC

Optopair for use in sensors and analyzers of gases such as methane, and a fabrication method therefor is disclosed. It comprises: a) an LED, either cascaded or not, having at least one radiation emitting area, whose spectral maximum is de-tuned from the maximum absorption spectrum line of the gas absorption spectral band; and b) a Photodetector, whose responsivity spectral maximum can be either de-tuned from, or alternatively completely correspond to the maximum absorption spectrum line of the absorption spectral band of the gas. Modeling the LED emission and Photodetector responsivity spectra and minimizing the temperature sensitivity of the optopair based on the technical requirements of the optopair signal registration circuitry, once the spectral characteristics of the LED and Photodetector materials and the temperature dependencies of said spectral characteristics are determined, provides the LED de-tuned emission and Photodetector responsivity target peaks respectively. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. (canceled)19. (canceled)20. (canceled)21. (canceled)22. (canceled)23. (canceled)24. (canceled)25. (canceled)26. (canceled)27. A process for building an LED and Photodetector optopair for use in optical sensors for analysis of a target sample gas analyte , said optopair being able to compensate for the effect of temperature variation on its signal comprising the following steps:a. identifying the target sample gas analyte;b. establishing the target sample gas analyte absorption band by determining its shortest, longest, and maximum spectral peak wavelength;c. using said shortest, longest and maximum spectral peak wavelengths to determine the material systems for each of the LED and the Photodetector respectively;d. determining the spectral characteristics of the LED ...

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Номер записи: 82
12-02-2015 дата публикации

GAS DETECTOR SYSTEM

Номер: US20150041660A1
Автор: TRÖLLSCH Arne
Принадлежит:

A gas detector system includes a transmitter (), which has a light source (), which emits an analytical light beam (). A transmitter lens assembly (), to focus the analytical light beam () in an emission direction (), includes a receiver (′) with a receiver lens assembly (), defining a receiver focal point (′) and a receiver axis (). A light mixing rod () defines a first rod axis () that extends from an inlet end (), pointing toward the receiver lens assembly (), to an outlet end () facing an analytical detector () and a reference detector (). An analytical filter (′) is arranged in front of the analytical detector () as viewed from the receiver lens assembly (). A reference filter (′) is arranged in front of the reference detector () as viewed from the receiver lens assembly (). 1. A gas detector system comprising:a transmitter comprising a light source, by which an analytical light beam is emitted, and with a transmitter lens assembly, which is designed to collimate the analytical light beam along an emission direction, anda receiver comprising a receiver lens assembly, which defines a receiver focal point and a receiver axis, a light mixing rod, which has an inlet end and an outlet end and defines a rod axis extending from the inlet end to the outlet end, wherein the inlet end points towards the receiver lens assembly, an analytical detector and a reference detector, wherein the analytical detector is arranged on a side of the outlet end pointing away from the receiver lens assembly, an analytical filter, which is arranged in front of the analytical detector as viewed from the receiver lens assembly, and a reference filter, which is arranged in front of the reference detector as viewed from the receiver lens assembly.2. A gas detector system in accordance with claim 1 , wherein the receiver lens assembly has a field lens claim 1 , which is arranged in front of the inlet end.3. A gas detector system in accordance with claim 1 , wherein the focal point is located ...

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Номер записи: 83
12-02-2015 дата публикации

SENSOR SYSTEM FOR DETECTING FUGITIVE GAS

Номер: US20150042820A1
Автор: Chapman William, DAY Timothy, Weida Miles
Принадлежит:

A sensor system for sensing the presence of methane and sulfur hexafluoride in an area includes (i) a laser assembly including a quantum cascade gain medium that generates a MIR output beam that is directed at the area; and (ii) an imager that captures a thermal image of the area when the MIR output beam is generated. To sense the presence of methane, the MIR output beam has a center wavelength that is in the range of between approximately 7.654 and 7.668 microns. Alternatively, to sense the presence of sulfur hexafluoride, the MIR output beam has a center wavelength that is in the range of between approximately 10.56 and 10.58 microns. 1. A sensor system for sensing the presence of methane in an area , the sensor system comprising:a laser assembly that generates a first MIR output beam that is directed at the area, the first MIR output beam having a center wavelength that is in the range of between approximately 7.654 and 7.668 microns, the laser assembly including a first quantum cascade gain medium that generates the first MIR output beam; andan imager that captures a first thermal image of the area when the first MIR output beam is generated.2. The sensor system of wherein the laser assembly generates a second MIR output beam that is directed at the area claim 1 , the second MIR output beam having center wavelength that is outside the range of between approximately 7.654 and 7.668 microns but within the mid-infrared range; wherein the imager captures a second thermal image of the area when the second MIR output beam is generated.3. The sensor system of further comprising a control system that blends the first thermal image with the second thermal image to provide a blended image.4. The sensor system of wherein the laser assembly generates a visible output beam that is directed at the area claim 2 , the visible output beam having center wavelength that is within the visible light spectrum claim 2 , wherein the imager captures a visible light image of the area ...

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Номер записи: 84
12-02-2015 дата публикации

Laser Spectrometer and Method for Measuring Concentration of a Gas Component in a Measurement Gas

Номер: US20150042991A1
Автор: Hankiewicz Thomas, Strauch Piotr
Принадлежит:

A laser spectrometer and method for measuring gas component concentration in a measurement gas, wherein light intensity from a wavelength-tunable laser diode is detected after irradiation of the measurement gas and a reference gas, and the concentration of the gas component is determined based on reduction of the light intensity by the absorption of light at the position of a selected absorption line of the gas component, and the position of the absorption line of the gas component is referenced based on a selected absorption line of the reference gas, and wherein there is a mixed operation consisting of actual measurements of fast concentration changes of the gas component to be measured and a short reference/standardization phase for wavelength referencing, line locking and standardization, where the duration of the actual measurement is measured such that measuring conditions remain constant and do not deviate from those during the reference/standardization phase. 15-. (canceled)6. A method for measuring a concentration of a gas component in a measurement gas , by detecting an intensity of light of a wavelength-tunable laser diode after shining through the measurement gas and a reference gas , and by determining the concentration of the gas component aided by a reduction in the intensity of the light due to absorption of the light at a position of a selected absorption line of the gas component , the position of the absorption line of the gas component being referenced with aided by a selected absorption line of the reference gas , the method comprising:driving the laser diode periodically with at least one of (i) a first increasing current signal and (ii) a first decreasing current signal to sample the absorption line of the gas component wavelength-dependently in a sampling range which reside outside the absorption line of the reference gas and which is restricted to an immediate vicinity of the absorption line of the gas component;driving the laser diode ...

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Номер записи: 85
09-02-2017 дата публикации

Methods And Systems For Detecting A Chemical Species

Номер: US20170039716A1
Автор: Morris Jonathan M., Zeng Yousheng
Принадлежит:

Methods and systems for detecting at least one chemical species including obtaining a first image from a first electromagnetic radiation detector and obtaining a second image from a second electromagnetic radiation detector. The first image includes a first plurality of pixels and the second image includes a second plurality of pixels, each pixel having an associated intensity value. A first resultant image is generated. The first resultant image includes a plurality of resultant pixels, each pixel having an associated intensity value. One or more regions of interest are determined. The correlation between the first image, the second image, and the first resultant image is determined for the one or more regions of interest using a correlation coefficient algorithm to calculate a first correlation coefficient and a second correlation coefficient. The presence of the chemical species is determined based, at least in part, on the first correlation coefficient and the second correlation coefficient. 1. A system for detecting at least one chemical species released into an environment , comprising:a lens;a first beam splitter configured to receive a beam of electromagnetic radiation from the lens and separate the beam into a first electromagnetic radiation beam and a second electromagnetic radiation beam;a first bandpass filter configured to receive the first electromagnetic radiation beam and transmit a filtered first electromagnetic radiation beam in a mid-infrared spectral range, the first bandpass filter is configured to transmit at least 50% of the first electromagnetic radiation beam passing through a first transmittance window, the first transmittance window having a first width including a first electromagnetic radiation wavelength range corresponding to at least a portion of a wavelength range of absorption or emission by the at least one chemical species to be detected;a first electromagnetic radiation detector configured to receive at least a portion of the ...

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Номер записи: 86
18-02-2016 дата публикации

HYDROPONIC COMPOSITIONS AND APPLICATIONS THEREOF

Номер: US20160044882A1
Автор: HERR Daniel Joseph Christian
Принадлежит:

In one aspect, hydroponic compositions are described herein comprising an aqueous medium in contact with a plant, the aqueous medium comprising a functional additive for imparting desired architecture and/or properties to the plant structure. In some embodiments, the functional additive comprises one or more of nanoparticles, spectral additives, and pH indicators. 1. A hydroponic composition comprising:an aqueous medium including one or more spectral additives; anda plant in contact with the aqueous medium, wherein the one or more spectral additives are incorporated into a structure of the plant altering spectral properties of the plant.2. The hydroponic composition of claim 1 , wherein the spectral additives are luminescent species having absorption spectra non-overlapping with chlorophylls a and b.3. The hydroponic composition of claim 2 , wherein the luminescent species have emission spectra overlapping with the absorption spectra of chlorophylls a and b.4. The hydroponic composition of claim 3 , wherein the luminescent species downconvert UV radiation claim 3 , near-UV radiation claim 3 , or visible radiation for absorption by chlorophylls a and b.5. The hydroponic composition of claim 3 , wherein the luminescent species upconvert infrared radiation for absorption by chlorophylls a and b.6. The hydroponic composition of claim 3 , wherein the luminescent species absorb radiation in the 500-600 nm range.7. The hydroponic composition of claim 1 , wherein the spectral additives have absorption profiles substantially overlapping with that of chlorophylls a and b.8. The hydroponic composition of claim 1 , wherein the spectral additives reflect light in the visible region of the electromagnetic spectrum.9. The hydroponic composition of claim 1 , wherein the spectral additives comprise nanoparticles claim 1 , laser dyes claim 1 , anti-Stokes materials claim 1 , anti-counterfeiting dye or a mixture thereof.10. The hydroponic composition of claim 1 , wherein the spectral ...

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Номер записи: 87
07-02-2019 дата публикации

Method for Quantifying the Amount of Optically Interfering Gas Impurities

Номер: US20190041317A1
Автор: Enquist Fredrik, Hellgren Johan, Vennerberg Henrik
Принадлежит:

Described is a method for quantifying the amount of optically interfering gas impurities in a gas detection system comprising a sample gas inlet, a reference gas inlet, a gas modulation valve, and an infrared absorption gas detector used for analysis of methane or natural gas, wherein the gas modulation valve alternatingly connects the sample gas inlet to the gas detector during a sample gas time period and the reference gas inlet to the gas detector during a reference gas time period. The method includes measuring an infrared absorption for at least two different sample gas concentrations in the gas detector achieved via respective different ratios from the sample gas time period and the reference gas time period, and comparing amplitudes of different measurement signals of the at least two different sample gas concentrations with calibration functions to assess an actual gas impurity concentration in the sampled gas. 1. A method for quantifying an amount of optically interfering gas impurities of a sampled gas in a gas detection system comprising a sample gas inlet , a reference gas inlet , a gas modulation valve and an infrared absorption gas detector used for analysis of methane or natural gas , wherein the gas modulation valve alternatingly connects the sample gas inlet to the gas detector during a sample gas time period and the reference gas inlet to the gas detector during a reference gas time period , the method comprising:measuring an infrared absorption for at least two different sample gas concentrations in the gas detector achieved via respective different ratios from the sample gas time period and the reference gas time period; andcomparing amplitudes of measurement signals of the at least two different sample gas concentrations with calibration functions representing signal amplitude versus gas concentration of different amounts of interfering gas impurities in methane or natural gas in order to thereby assess an actual gas impurity concentration in ...

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Номер записи: 88
07-02-2019 дата публикации

Gas Detection Device, Gas Detection Method, and Gas Detection Program

Номер: US20190041322A1
Автор: ASANO Motohiro, Suzuki Akihiro, Takahashi Hiroshi
Принадлежит:

The gas detection device according to the present invention is provided with: a first image processing unit for generating a first binary image for indicating in binary fashion the inside and outside of a first region indicating water vapor and a gas to be detected, on the basis of a first image generated using an optical filter having a first pass wavelength band including at least an absorption wavelength band of the gas; a second image processing unit for generating a second binary image indicating in binary fashion the inside and outside of a second region indicating the water vapor, on the basis of a second image generated using an optical filter having a second pass wavelength band different from the absorption wavelength band; and a third image processing unit for calculating a difference between the first binary image and the second binary image. 1. A gas detection apparatus comprising:a hardware processor that:acquires a first image generated using a first optical filter having a first transmission wavelength band that is a wavelength band including at least an absorption wavelength band of a gas to be detected in a monitoring area;acquires a second image generated using a second optical filter having a second transmission wavelength band, the second transmission wavelength band being a wavelength band that is different from the absorption wavelength band;generates a first binary image indicating an inside and an outside of each of respective first areas indicating the gas and water vapor, by binary values, based on the first image;generates a second binary image indicating an inside and an outside of a second area indicating the water vapor, by binary values, based on the second image; andcalculates a difference between the first binary image and the second binary image.2. The gas detection apparatus according to claim 1 , wherein the hardware processor determines whether or not the gas exists in the monitoring area claim 1 , based on the difference.3. The ...

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Номер записи: 89
06-02-2020 дата публикации

GAS COMPONENT MEASURING DEVICE

Номер: US20200041382A1
Автор: FUJIMOTO Mitsuhito, MATSUO Takato, SUGASAWA Toshiaki, YAMAGUCHI Ryuji
Принадлежит: JP Steel Plantech Co.

A gas component measuring device includes: a cyclone including a gas inlet; and a laser gas analyzer configured to take, in the cyclone, a measurement of a component of a subject gas that contains particulate matter and is introduced into the cyclone through the gas inlet. 110-. (canceled)11. A gas component measuring device comprising:a cyclone including a gas inlet; anda laser gas analyzer configured to take, in the cyclone, a measurement of a component of a subject gas that contains particulate matter and is introduced into the cyclone through the gas inlet, wherein:the cyclone includes a pair of opening portions, opposed to each other, in a side surface thereof;a light emitting portion of the laser gas analyzer is disposed to emit laser light into the cyclone through one of the pair of opening portions, and a light receiving portion of the laser gas analyzer is disposed to receive the laser light that exits through the other of the pair of opening portions; andthe gas component measuring device further includes a displacing device configured to reduce the particulate matter on an optical path of the laser light by hindering passage of the particulate matter in a vicinity of each of the pair of opening portions within the cyclone.12. The gas component measuring device according to claim 11 , whereinthe laser gas analyzer is configured to take the measurement of the component of the subject gas at a central area other than an outer area in the cyclone.13. The gas component measuring device according to claim 11 , whereinthe displacing device includes a gas injection device configured to inject purge gas inward through each of the pair of opening portions.14. The gas component measuring device according to claim 11 , whereinthe displacing device includes a hollow pipe provided to protrude inward from each of the pair of opening portions.15. The gas component measuring device according to claim 11 , whereina top of the cyclone is closed by a ceiling portion, the gas ...

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Номер записи: 90
06-02-2020 дата публикации

IMAGE-PROCESSING DEVICE FOR GAS DETECTION, IMAGE-PROCESSING METHOD FOR GAS DETECTION, AND IMAGE-PROCESSING PROGRAM FOR GAS DETECTION

Номер: US20200041406A1
Автор: ASANO Motohiro
Принадлежит: KONICA MINOLTA, INC.

An image-processing device, for gas detection that performs image processing on infrared images of a subject being taken at plurality of times a day, includes a hardware processor that generates physical-quantity-change data indicating chronological change in physical quantity determined based on pixel data of pixels constituting the infrared image. The hardware processor selects, from the pixels constituting the infrared image, a reference pixel used as a reference and a comparison pixel to be compared with the reference pixel, and calculates a degree of phase similarity indicating a degree of similarity in phase between a waveform of the physical-quantity-change data of the reference pixel and a waveform of the physical-quantity-change data of the comparison pixel. The hardware processor determines, based on the degree of phase similarity, that an image including the reference pixel and the comparison pixel is not a gas image. 114-. (canceled)15. An image-processing device for gas detection that performs image processing on infrared images of a subject being taken at a plurality of times a day , the image-processing device comprising:a hardware processor that generates physical-quantity-change data indicating chronological change in physical quantity determined based on pixel data of the infrared images, wherein the hardware processor:selects a first spot and a second spot in the infrared images, anddetermines, based on phase information of the physical-quantity-change data in the first spot and the second spot as generated by the hardware processor, whether or not an image including the first spot and the second spot in the infrared images is a gas image.16. The image-processing device for gas detection according to claim 15 , wherein the hardware processor generates:chronological pixel data indicating the chronological change in the pixel data of the infrared images,smoothed data by smoothing the chronological pixel data over a course of the chronological change ...

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Номер записи: 91
06-02-2020 дата публикации

Plasmonic Non-Dispersive Infrared Gas Sensors

Номер: US20200041409A1
Автор: Falk Abram L., Farmer Damon B., Han Shu-Jen
Принадлежит:

Differential, plasmonic, non-dispersive infrared gas sensors are provided. In one aspect, a gas sensor includes: a plasmonic resonance detector including a differential plasmon resonator array that is resonant at different wavelengths of light; and a light source incident on the plasmonic resonance detector. The differential plasmon resonator array can include: at least one first set of plasmonic resonators interwoven with at least one second set of plasmonic resonators, wherein the at least one first set of plasmonic resonators is configured to be resonant with light at a first wavelength, and wherein the at least one second set of plasmonic resonators is configured to be resonant with light at a second wavelength. A method for analyzing a target gas and a method for forming a plasmonic resonance detector are also provided. 1. A gas sensor , comprising:a plasmonic resonance detector comprising a differential plasmon resonator array that is resonant at different wavelengths of light; anda light source incident on the plasmonic resonance detector, wherein the light source comprises an incandescent bulb.2. The gas sensor of claim 1 , further comprising:an enclosure, wherein the plasmonic resonance detector and the light source are housed within the enclosure.3. The gas sensor of claim 1 , wherein the enclosure comprises:an air inlet; andan air outlet.4. The gas sensor of claim 1 , wherein the differential plasmon resonator array comprises:at least one first set of plasmonic resonators interwoven with at least one second set of plasmonic resonators, wherein the at least one first set of plasmonic resonators is configured to be resonant with light at a first wavelength, and wherein the at least one second set of plasmonic resonators is configured to be resonant with light at a second wavelength.5. The gas sensor of claim 4 , wherein the differential plasmon resonator array further comprises:at least one third set of resonators interwoven with the at least one first set ...

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Номер записи: 92
18-02-2021 дата публикации

FINE RATIO MEASURING DEVICE, FINE RATIO MEASURING SYSTEM, AND BLAST FURNACE OPERATING METHOD

Номер: US20210048386A1
Автор: TSUBOI Toshiki, Yamahira Naoshi
Принадлежит:

A fine ratio measuring device that measures a ratio of fines adhering to the surface of a material in the form of lumps, the fine ratio measuring device includes: an illumination unit that illuminates the material in the form of lumps; a spectrometer that performs spectral analysis on light reflected from the material in the form of lumps to measure spectral reflectance; and an arithmetic device that extracts at least one feature quantity from the spectral reflectance measured by the spectrometer and computes the fine ratio from the extracted at least one feature quantity. 16.-. (canceled)7. A fine ratio measuring device that measures a ratio of fines adhering to the surface of a material in the form of lumps , the fine ratio measuring device comprising:an illumination unit that illuminates the material in the form of lumps;a spectrometer that performs spectral analysis on light reflected from the material in the form of lumps to measure spectral reflectance; andan arithmetic device that extracts at least one feature quantity from the spectral reflectance measured by the spectrometer and computes the fine ratio from the extracted at least one feature quantity.8. The fine ratio measuring device according to claim 7 ,wherein the at least one feature quantity is at least one score of at least one basis vector of at least one predetermined principal component obtained by subjecting spectral reflectances at a plurality of wavelengths to principal component analysis, the spectral reflectances being measured by the spectrometer,the arithmetic device includes an arithmetic unit and a storage unit,a relational expression between the fine ratio and the at least one score is prestored in the storage unit, andthe arithmetic unit computes the at least one score from the spectral reflectances at the plurality of wavelengths and then computes the fine ratio using the computed at least one score and the relational expression.9. The fine ratio measuring device according to claim 7 , ...

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Номер записи: 93
18-02-2016 дата публикации

Absorption spectrometer and method for measuring the concentration of a gaseous component of interest in a measurement gas

Номер: US20160047739A1
Автор: Bitter Ralf
Принадлежит:

Absorption spectrometer and method for measuring the concentration of a gaseous component of interest in a measurement gas, wherein to compensate influence of changes in an optical path length in the absorption spectrometer on a measured result, light from the laser is modulated with at least one pilot frequency in the MHz range, the measurement signal is analyzed in a phase-sensitive manner for the pilot frequency, phase information obtained during this analysis is compared with phase information obtained during calibration of the absorption spectrometer, where the measured result is corrected as a function of the difference between the two items of phase information. Alternatively, light from the laser is modulated with two pilot frequencies, where signal components contained in the measurement signal with the pilot frequencies are detected in a phase-sensitive manner and the difference between the phase information of the two signal components obtained in this operation is analyzed. 110.-. (canceled)11. An absorption spectrometer for measuring the concentration of a gaseous component of interest in a measurement gas , comprising:a variable-wavelength laser;a detector for generating a measurement signal;a multi-reflection gas cell arranged in a light path between the variable-wavelength laser and the detector and containing the measurement gas,{'sub': 'P', 'a controller configured to vary an injection current (i) of the variable-wavelength laser and to tune a wavelength of light to a specific absorption line of the gaseous component of interest, the controller including a pilot signal generator to modulate the injection current (i) with at least one pilot frequency (f) in a MHz range;'}an analyzer configured to analyze the measurement signal and establish a measured result for the concentration to be measured;{'sub': P', 'meas', 'calib', 'meas', 'calib, 'a further analyzer configured to analyze the measurement signal for the pilot frequency (f) in a phase- ...

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Номер записи: 94
18-02-2016 дата публикации

SAMPLE TEST METHOD, MICROFLUIDIC DEVICE, AND TEST DEVICE

Номер: US20160047740A1
Автор: CHO Euy Hyun, Kim Ha Na, KIM Kui Hyun, LEE Beom Seok, PARK Joo Hee, PARK Sang Bum, Park Sung Ha, SONG Kyung Mi
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A sample test method, microfluidic device, and test device efficiently and accurately compensates for interference of an interfering substance present in a sample using optical measurement without addition of a separate reagent for detecting the interfering substance. The sample test method includes: measuring an optical characteristic value of a target substance present in a sample; measuring an optical characteristic value of an interfering substance present in the sample; and determining a concentration of the target substance for which interference of the interfering substance is compensated for based on the optical characteristic value of the interfering substance. 1. A sample test method comprising:measuring an optical characteristic value of a target substance present in a sample;measuring an optical characteristic value of an interfering substance present in the sample; anddetermining a concentration of the target substance for which interference of the interfering substance is compensated for based on the optical characteristic value of the interfering substance.2. The sample test method of claim 1 , wherein the determining the concentration of the target substance for which interference of the interfering substance is compensated for comprises:compensating the optical characteristic value of the target substance using the optical characteristic value of the interfering substance; anddetermining the concentration of the target substance based on the compensated optical characteristic value.3. The sample test method of claim 2 , wherein the compensating the optical characteristic value of the target substance comprises:applying a fluctuation coefficient to the optical characteristic value of the interfering substance to obtain an application result, and then subtracting or adding the application result from or to the optical characteristic value of the target substance.4. The sample test method of claim 1 , wherein the measuring the optical characteristic ...

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Номер записи: 95
06-02-2020 дата публикации

SYSTEM, METHOD AND COMPUTER PROGRAM

Номер: US20200042817A1
Автор: ERDLER Oliver, GATTO Alexander, HIRONORI Mori, Muller Ralf, SARTOR Piergiorgio
Принадлежит: SONY CORPORATION

A system including circuitry configured to determine a reflectance feature of a liquid based on reflectance image data generated based on multispectral image data of the liquid; determine a structural feature of the liquid based on image data of the liquid; and to provide quality information of the liquid based on the reflectance feature and the structural feature. 1. A system comprising determine a reflectance feature of a liquid based on reflectance image data generated based on multispectral image data of the liquid;', 'determine a structural feature of the liquid based on image data of the liquid; and to', 'provide quality information of the liquid based on the reflectance feature and the structural feature., 'circuitry configured to'}2. The system of wherein the multispectral image data comprises first multispectral image data of a liquid without calibrated light and second multispectral image data of the liquid with calibrated light.3. The system of wherein the circuitry is configured to obtain the first multispectral image data of the liquid without calibrated light.4. The system of wherein the circuitry is configured to obtain the second multispectral image data of the liquid with calibrated light.5. The system of wherein the circuitry is configured to generate spectral difference image data based on the first multispectral image data and the second multispectral image data.6. The system of wherein the circuitry is configured to generate the reflectance image data from the spectral difference image data.7. The system of wherein the circuitry is configured to determine the image data from the spectral difference image data.8. The system of wherein the determination of the structural feature of the liquid based on the image data comprises a bubble and/or foam analysis.9. The system of wherein the structural feature of the liquid comprises structural information of a bubble and/or foam of the liquid.10. The system of wherein the circuitry is configured to ...

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Номер записи: 96
16-02-2017 дата публикации

SAMPLE ANALYSIS METHODS

Номер: US20170045441A1
Автор: NCIRI Mejdi
Принадлежит:

The invention generally relates to methods for determining a concentration of at least one target analyte in a heterogeneous sample and methods for detecting a condition. In certain aspects, the inventions provides methods that involve illuminating a heterogeneous sample, such as a biological sample, including at least one target analyte with polychromatic light, receiving luminous data of the heterogeneous sample and the at least one target analyte with a detector without splitting the polychromatic light into individual wavelengths and generating spectral data therefrom. The spectral data is then converted into a concentration of the at least one target analyte in the biological sample by comparing the spectral data to a database comprising known spectra already associated with concentration levels. 1. A method for determining a concentration of at least one target analyte in a heterogeneous sample , the method comprising:illuminating a heterogeneous sample comprising at least one target analyte with polychromatic light;receiving a luminous signal of the heterogeneous sample and the at least one target analyte with a detector without splitting the polychromatic light into individual wavelengths;generating spectral data from the received luminous signal; andconverting the spectral data into a concentration of the at least one target analyte in the heterogeneous sample by comparing the spectral data to a database comprising known spectra already associated with concentration levels of the target analyte.2. The method of claim 1 , wherein the heterogeneous sample is at least one selected from the group consisting of a biological sample claim 1 , an environmental sample claim 1 , a food product sample claim 1 , and a beverage product sample.3. The method of claim 2 , wherein the biological sample is a human tissue or body fluid sample4. The method of claim 3 , wherein the body fluid sample is a blood sample.5. The method of claim 2 , wherein the body fluid sample is a ...

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Номер записи: 97
16-02-2017 дата публикации

MULTI-SPECTRAL GAS ANALYZER SYSTEM WITH MULTIPLE SETS OF SPECTRAL SENSITIVITY

Номер: US20170045443A1
Автор: Hung Po-Chieh, Wang Leiming
Принадлежит: KONICA MINOLTA LABORATORY U.S.A., INC.

A system and method for multi-spectral gas concentration analysis that includes using a library of multiple sets of optimized spectral sensitivities prepared in advance, and a multi-spectral IR gas analyzer tuned to a set of optimized spectral sensitivity. The multi-spectral IR gas analyzer measures spectral absorption of gas using one or more different sets of optimized spectral sensitivities. 1. A method for multi-spectral gas concentration analysis , the method comprising:preparing a library of multiple sets of optimized spectral sensitivities;measuring spectral absorption of a gas using a multi-spectral IR gas analyzer tuned to one set of the multiple sets of optimized spectral sensitivities;comparing the multiple sets of optimized spectral sensitivities based on the signal level measured by the multi-spectral IR gas analyzer.2. The method of claim 1 , wherein the comparing is dependent on the gas concentration.3. The method of claim 1 , wherein the comparing is based on a location of absorption peaks relative to one or more wavelength bands in the multiple sets of optimized spectral sensitivities.4. The method of claim 1 , wherein the comparing comprises:comparing a signal level measured by the multi-spectral IR gas analyzer to a predetermined threshold; andselecting a new spectral sensitivity set if the signal level measured by the multi-spectral IR gas analyzer is less than or equal to the predetermined threshold.5. The method of claim 1 , wherein the comparing comprises:applying a set of spectral sensitivity optimized for low gas concentration from the multiple sets of optimized spectral sensitivities;comparing a signal level measured by the multi-spectral IR gas analyzer and a predetermined threshold;switching to a set of spectral sensitivity optimized for high concentration; andmeasuring the spectral absorption of gas a second time using the multi-spectral IR gas analyzer.6. The method of claim 1 , wherein the multiple spectral sensitivity sets contain at ...

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Номер записи: 98
15-02-2018 дата публикации

METHOD OF INCREASING POWER WITHIN AN OPTICAL CAVITY WITH LONG PATH LENGTHS

Номер: US20180045561A1
Автор: Bramall Nathan E., Leen John Brian
Принадлежит: ABB, Inc.

A cavity-enhanced absorption spectroscopy instrument has an optical cavity with two or more cavity mirrors, one mirror of which having a hole or other aperture for injecting a light beam, and the same or another mirror of which being partially transmissive to allow exit of light to a detector. A spherical-spherical configuration with at least one astigmatic mirror or a spherical-cylindrical configuration where the spherical mirror could also be astigmatic prevents a reentrant condition wherein the injected beam would prematurely exit the cavity through the aperture. This combination substantially increases the number of passes of the injected beam through a sample volume for sensitive detection of chemical species even in less than ideal conditions including low power laser or LED sources, poor mirror reflectivity or detector noise at the wavelengths of interest, or cavity alignment issues such as vibration or temperature and pressure changes. 1. A cavity-enhanced absorption spectroscopy instrument , comprising:an optical cavity defined by at least two cavity mirrors and containing a sample volume, a first one of the cavity mirrors having an optical aperture formed therein, a same or different one of the cavity mirrors being partially transmissive of light;a tunable-wavelength light source supplying a light beam directed through the aperture so as to be injected into the optical cavity, at least one of the cavity mirrors being characterized by having an astigmatism such that respective longest and shortest radii of curvature through orthogonal axial planes of that astigmatic mirror differ by at least 1% and selected such that the light beam in the cavity is prevented from exiting the cavity through the aperture until passing in excess of 30 times through the sample volume;a detector positioned to collect light passing through the partially transmissive cavity mirror; anda data acquisition and analysis system coupled to the detector and configured to at least ...

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Номер записи: 99
15-02-2018 дата публикации

USE OF SELECTED GLASS TYPES AND GLASS THICKNESSES IN THE OPTICAL PATH TO REMOVE CROSS SENSITIVITY TO WATER ABSORPTION PEAKS

Номер: US20180045563A1
Автор: Cox James Allen, Fritz Bernard, Marta Terry, Phillips Antony Leighton, Watts Rodney Royston
Принадлежит:

Embodiments relate generally to systems and methods for filtering unwanted wavelengths from an IR detector. In some embodiments, it may be desired to remove or reduce the wavelengths absorbed by water, to reduce the effects of water on the detection of the target gas. In some embodiments, a filter glass may be used in the IR detector, wherein the filter glass comprises one or more materials that contain hydroxyls in their molecular structure, and wherein the spectral absorption properties of the filter glass are operable to at least reduce wavelengths of light absorbed by water from the optical, thereby reducing the IR detector's cross sensitivity to water. 115-. (canceled)17. The infrared detector of claim 16 , wherein the one or more materials comprise Fused Silica.18. The infrared detector of claim 16 , wherein the one or more materials comprise a crown glass.19. The infrared detector of claim 16 , wherein the thickness of the filter glass is approximately 3 millimeters.20. The infrared detector of claim 16 , wherein the thickness of the filter glass is approximately 2 millimeters.21. The infrared detector of claim 16 , wherein the wavelengths that are not filtered by the filter glass are between approximately 2900 nanometers (nm) to 4100 nm.22. The infrared detector of claim 16 , wherein the wavelengths filtered by the filter glass are less approximately 3000 nm.23. The infrared detector of claim 16 , wherein the wavelengths filtered by the filter glass are greater than approximately 4000 nm.24. The infrared detector of claim 16 , further comprising a source light claim 16 , a gas chamber claim 16 , and one or more sensor.25. The infrared detector of claim 24 , wherein the filter glass is located between the source light and the gas chamber.26. The infrared detector of claim 24 , further comprising a first sensor that is a sample sensor and a second sensor that is a reference sensor.27. A method for filtering specific wavelengths in an infrared detector claim 24 ...

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Номер записи: 100