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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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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 13758. Отображено 100.
10-12-2016 дата публикации

Установка для прецизионных бесконвекционных измерений тепловой проницаемости материалов при температурах, близких к комнатной

Номер: RU0000166709U1
Автор: Евгений Юрьевич Шампаров, Инна Николаевна Жагрина
Принадлежит: Евгений Юрьевич Шампаров

Установка для бесконвекционного измерения тепловой проницаемости материалов, включающая блок электронного управления и блок тепловых измерений, содержащий три основных снабженных электронными датчиками и индикаторами температуры элемента - холодильник с регулируемым охлаждением, тепловой экран с регулируемым нагревом или охлаждением и нагреватель со встроенным электрическим сопротивлением R с регулируемым и измеряемым напряжением питания; рабочие поверхности нагревателя и холодильника расположены в горизонтальной плоскости (нагреватель над холодильником) и имеют одинаковую форму, они сделаны из материала с высокой излучательной способностью для естественного теплового излучения и с очень высокой теплопроводностью так, что их температуры практически одинаковы по всей площади; между ними помещен той же формы исследуемый образец материала, толщина которого много меньше отношения площади к периметру; тепловой экран, тоже имеющий практически одинаковую по всей площади температуру, расположен с обратной стороны сверху и с боков от нагревателя за слоем теплоизоляции и, как и внешняя сторона нагревателя, выполнен из металла с очень высокой теплопроводностью и очень малой излучательной способностью для естественного теплового излучения; при измерениях с помощью внешней управляющей электронной схемы должна быть установлена и стабилизирована выбранная температура теплового экрана Ти холодильника T, затем посредством постепенного увеличения напряжения питания резистора нагревателя и соответственно выделяемой в нагревателе мощности должен быть установлен стационарный режим с напряжением U, при котором РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 166 709 U1 (51) МПК G01N 25/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2016112200/28, 01.04.2016 (24) Дата начала отсчета срока действия патента: 01.04.2016 (72) Автор(ы): Шампаров Евгений Юрьевич (RU), Жагрина Инна Николаевна (RU) (73) ...

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Номер записи: 1
04-09-2017 дата публикации

Полупроводниковый сенсорный модуль с легированным газочувствительным слоем

Номер: RU0000173647U1
Автор: Александр Николаевич Михайлов, Андрей Александрович Большаков, Илья Владимирович Сердюк
Принадлежит: Акционерное общество "Научно-исследовательский институт точной механики"

Полезная модель относится к устройствам обеспечения газовой безопасности и может быть использована в приборах и системах для определения концентрации токсичных и горючих газов. Полупроводниковый сенсорный модуль с легированным газочувствительным слоем содержит нагревательный элемент в форме спирали и измерительный электрод, расположенный по оси спирали, выполненные из платиновой проволоки, на которые нанесено двухслойное керамическое покрытие, состоящее из диоксида олова (внутренний слой) и гамма-оксида алюминия (наружный слой), имеющее шарообразную форму. Наружный и внутренний слои содержат легирующую добавку в виде одного из металлов Au, Pd, Cu. Техническим результатом является повышение чувствительности, селективности, увеличение количества определяемых газов, повышение уровня унификации устройства. 2 ил. Ц 1 173647 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) сэвех в &а(13) (51) МПК ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ СОМ 27/12 (2006.01) (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2017108817, 16.03.2017 (24) Дата начала отсчета срока действия патента: 16.03.2017 Дата регистрации: 04.09.2017 Приоритет(ы): (22) Дата подачи заявки: 16.03.2017 (45) Опубликовано: 04.09.2017 Бюл. № 25 Адрес для переписки: 195256, Санкт-Петербург, пр. Непокоренных, 47, лит. А, АО "НИИ ТМ" (72) Автор(ы): Сердюк Илья Владимирович (КО), Михайлов Александр Николаевич (КО), Большаков Андрей Александрович (КО) (73) Патентообладатель(и): Акционерное общество "Научно-исследовательский институт точной механики" (КО) (56) Список документов, цитированных в отчете о поиске: КИ 2583166 С1, 10.05.2016. КО 2557435 СТ, 20.07.2015. КО 2509303 СТ, 10.03.2014. ВО 167397 31, 10.01.2017. КО 48639 01, 27.10.2005. 0$ 20010003916 А1, 21.06.2001. (54) ПОЛУПРОВОДНИКОВЫЙ СЕНСОРНЫЙ МОДУЛЬ С ЛЕГИРОВАННЫМ ГАЗОЧУВСТВИТЕЛЬНЫМ СЛОЕМ (57) Реферат: Полезная модель относится к устройствам обеспечения газовой безопасности и может быть использована в приборах и системах для определения концентрации ...

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Номер записи: 2
29-07-2021 дата публикации

Термокаталитический сенсор для определения углеводородов и водородов

Номер: RU0000205698U1
Автор: Владимир Иванович Леонтьев, Максим Михайлович Клюев, Петр Александрович ПОРСЕВ
Принадлежит: Общество с ограниченной ответственностью "ЭРИС"

Полезная модель относится к области разработки газочувствительных элементов, применяемых в составе датчиков, течеискателей, газосигнализаторов, газоанализаторов, а также других приборов и систем газового анализа, может быть использована для обнаружения довзрывоопасных концентраций газообразных углеводородов на различных объектах. Термокаталитический сенсор для обнаружения углеводородов и водорода, содержащий измерительный и компенсационный чувствительные элементы, выполненные в виде спиралей из платиновой проволоки, на которые нанесено керамическое покрытие, выполненное из диоксида циркония и имеющее шарообразную форму, поверхность керамического покрытия компенсационного элемента пассивирована метасиликатом натрия, а измерительный чувствительный элемент активирован платино-палладиевым катализатором, при этом в состав керамического покрытия добавлен алюминий азотнокислый, а также платино-палладиевый катализатор включен в состав керамического покрытия измерительного элемента в трехкратном размере.Техническим результатом, достигаемым заявляемой полезной моделью, является увеличение устойчивости к воздействию высоких концентраций углеводородов и водорода, механической прочности и устойчивости к каталитическим ядам. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 205 698 U1 (51) МПК G01N 27/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01N 27/16 (2021.05) (21)(22) Заявка: 2021117852, 20.06.2021 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): ОБЩЕСТВО С ОГРАНИЧЕННОЙ ОТВЕТСТВЕННОСТЬЮ "ЭРИС" (RU) 29.07.2021 (45) Опубликовано: 29.07.2021 Бюл. № 22 2 0 5 6 9 8 R U (54) Термокаталитический сенсор для определения углеводородов и водородов (57) Реферат: Полезная модель относится к области компенсационного элемента пассивирована разработки газочувствительных элементов, метасиликатом натрия, а измерительный применяемых в составе датчиков, течеискателей, чувствительный элемент ...

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Номер записи: 3
23-02-2012 дата публикации

Monitoring particles in a lubrication system

Номер: US20120046896A1
Автор: Jean-Remi Andre Masse, Maurice Georges Vernochet, Xavier Flandrois
Принадлежит: SNECMA SAS

A process for monitoring a machine including moving pieces, a lubrication system and an electromagnetic sensor fitted with a magnet and two electrodes is disclosed. The sensor is capable of collecting particles present in the lubrication system between the electrodes. The monitoring process includes a step for obtaining measurements of resistance between the electrodes of the sensor, taken during an operating period of the machine; a step for determining from said measurements a first autoregressive mathematical model characterizing the resistance; a step for comparison between the first model and a predetermined reference model; and a step for working out an opinion on maintenance of the machine as a function of the comparison result.

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Номер записи: 4
07-06-2012 дата публикации

Gas sensor

Номер: US20120138459A1
Автор: Arthur Lin, I-Cherng Chen, Nai-Hao Kuo
Принадлежит: Industrial Technology Research Institute ITRI

A gas sensor is provided. The substrate of the gas sensor has a first surface, a second surface and a cavity. The cavity has an opening at the first surface. An insulating film is disposed on the first surface and covers the opening. A heating unit is embedded in the insulating film and located above the opening. An electrode pair is disposed on the insulating film and electrically separated from the heating unit. A buffer layer is disposed on the insulating film and located above the heating unit. The buffer layer is electrically connected to the electrode pair, and at least part of an orthogonal projection of the buffer layer on the first surface is located on the substrate next to the opening. The gas sensing layer is disposed on the buffer layer and has a nano-catalyst therein.

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Номер записи: 5
02-08-2012 дата публикации

Methods and devices for detecting unsaturated compounds

Номер: US20120196379A1
Автор: Abdul-Majeed Azad, Desikan Sundararajan, Robert Howard Kinner
Принадлежит: Individual

A method for detecting an unsaturated compound, the method comprising monitoring change in electrical properties of a substance that reacts or interacts with unsaturated compounds.

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Номер записи: 6
30-08-2012 дата публикации

System and Methods for Improving Power Handling of an Electronic Device

Номер: US20120221288A1
Автор: Dimitrios Ioannidis
Принадлежит: General Electric Co

There is provided a method of determining thermal behavior of a double H-bridge. An exemplary method includes applying current to a set of dual IGBTs of the double H-bridge, the dual IGBTs thermally coupled to a heatsink. The method also includes measuring case temperatures of each of the dual IGBTs. The method also includes, based on the measured case temperatures, determining a set of thermal resistance parameters that describe a thermal effect that the current through each dual IGBT has on the case temperatures of each dual IGBT. The method also includes using the thermal resistance parameters to generate a computer model for analyzing heat flow in the double H-bridge. The method also includes using the thermal model to estimate junction temperatures of the double H-bridge during operation of the double H-bridge.

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Номер записи: 7
04-10-2012 дата публикации

Device for the selective detection of benzene gas, method of obtaining it and detection of the gas therewith

Номер: US20120247180A1
Автор: Alexandre Felten, Ali Mansour, Eduard Llobet Valero, François Amand Baudouin Reniers, Frédéric Gilbert Michel Demoisson, Henri-Noel Migeon, Jean-Jacques Pireaux, Jérôme GUILLOT, Marc Delgado Olivella, Nicolas Yves Claessens, Radouane Leghrib
Принадлежит: CENTRE DE RECHERCHE PUBLIC GABRIEL LIPPMANN, SENSOTRAN SL, Universitat Rovira i Virgili URV, UNIVERSITE DE NAMUR, Universite Libre de Bruxelles ULB

Device for the selective detection of benzene gas, which comprises, on a base substrate, a combination of at least one functionalised multi- or single-wall carbon nanotube sensor decorated with rhodium clusters, and at least one functionalised multi- or single-wall carbon nanotube sensor decorated with metal clusters selected from gold, palladium, nickel and titanium, and/or undecorated, where said substrate additionally comprises means for measuring the variation in the resistance of said sensors. The device is useful at ambient temperature in the presence or absence of oxygen and easy to handle. It also relates to a method for the manufacturing thereof and for detecting the gas in the chemical industry, the petrochemical industry, petrol stations, or household, aeronautical or research applications.

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Номер записи: 8
04-10-2012 дата публикации

Test structure and measurement method thereof

Номер: US20120249176A1
Автор: Heng-Chieh Chien, John H. Lau, Ming-Ji Dai, Ra-Min Tain, Yu-Lin Chao
Принадлежит: Industrial Technology Research Institute ITRI

A test structure including a substrate, at least one conductive plug, a first conductive trace and a second conductive trace is provided. The substrate has a first area and a second area. The at lest one conductive plug is disposed in the substrate in the first area, wherein the conductive plug does not penetrate through the substrate. The first conductive trace is disposed on the conductive plug and on the substrate in the first area. The second conductive trace is disposed on the substrate in the second area. It is noted that the first conductive trace and the second conductive trace have the same material and the same shape. A measurement method of the above-mentioned test structure is also provided.

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Номер записи: 9
11-10-2012 дата публикации

Integrated cmos porous sensor

Номер: US20120256236A1
Автор: Timothy Cummins
Принадлежит: ChipSensors Ltd

A single chip wireless sensor comprises a microcontroller connected by a transmit/receive interface to a wireless antenna. The microcontroller is also connected to an 8 kB RAM, a USB interface, an RS232 interface, 64 kB flash memory, and a 32 kHz crystal. The device senses humidity and temperature, and a humidity sensor is connected by an 18 bit ΣΔ A-to-D converter to the microcontroller and a temperature sensor is connected by a 12 bit SAR A-to-D converter to the microcontroller. The device is an integrated chip manufactured in a single process in which both the electronics and sensor components are manufactured using standard CMOS processing techniques, applied to achieve both electronic and sensing components in an integrated process.

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Номер записи: 10
25-10-2012 дата публикации

Sensor mounted in flip-chip technology on a substrate

Номер: US20120267731A1
Автор: Felix Mayer, Franziska Brem, Markus Graf, Werner Hunziker
Принадлежит: Individual

The sensor assembly comprises a substrate ( 1 ), such as a flexible printed circuit board, and a sensor chip ( 2 ) flip-chip mounted to the substrate ( 1 ), with a first side ( 3 ) of the sensor chip ( 2 ) facing the substrate ( 1 ). A sensing area ( 4 ) and contact pads ( 5 ) are integrated on the first side ( 3 ) of the sensor chip ( 2 ) and located in a chamber ( 17 ) between the substrate ( 1 ) and the sensor chip ( 2 ). Chamber ( 17 ) is bordered along at least two sides by a dam ( 16 ). Underfill ( 18 ) and/or solder flux is arranged between the sensor chip ( 2 ) and the substrate ( 1 ), and the dam ( 16 ) prevents the underfill from entering the chamber ( 17 ). An opening ( 19 ) extends from the chamber to the environment and is located between the substrate ( 1 ) and the sensor chip ( 2 ) or extends through the sensor chip ( 2 ).

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Номер записи: 11
01-11-2012 дата публикации

Moisture monitoring system for gas turbine engines

Номер: US20120277968A1
Автор: Edris Raji, James F. Hyland, Jr.
Принадлежит: United Technologies Corp

A moisture monitoring system includes a control in communication with a sensor system to determine moisture data from a moisture level in a composite material structure.

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Номер записи: 12
08-11-2012 дата публикации

Lead-free piezoelectric ceramic films and a method for making thereof

Номер: US20120280417A1
Автор: Huidong Li, Wan Y. Shih, Wei-Heng Shih
Принадлежит: DREXEL UNIVERSITY

This invention relates to a method of making lead-free piezoelectric ceramic films. Specifically, the invention is directed to a method for fabricating lead-free piezoelectric free standing films having enhanced piezoelectric properties. The films may be used for a number of applications including incorporation in microelectronic devices such as energy harvesting devices and sensor technologies.

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Номер записи: 13
22-11-2012 дата публикации

Method and Apparatus for Measuring Thermal Conductivity of Small, Highly Insulating Specimens

Номер: US20120294329A1
Автор: Maria A. Kuczmarski, Robert A. Miller
Принадлежит: Individual

A method and apparatus for the measurement of thermal conductivity combines the following capabilities: 1) measurements of very small specimens; 2) measurements of specimens with thermal conductivity on the same order of that as air; and, 3) the ability to use air as a reference material. Care is taken to ensure that the heat flow through the test specimen is essentially one-dimensional. No attempt is made to use heated guards to minimize the flow of heat from the hot plate to the surroundings. Results indicate that since large correction factors must be applied to account for guard imperfections when specimen dimensions are small, simply measuring and correcting for heat from the heater disc that does not flow into the specimen is preferable.

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Номер записи: 14
07-02-2013 дата публикации

Integrated circuit with sensor and method of manufacturing such an integrated circuit

Номер: US20130032902A1
Автор: Matthias Merz
Принадлежит: NXP BV

Disclosed is an integrated circuit comprising a substrate ( 10 ) carrying a plurality of circuit elements; a metallization stack ( 12, 14, 16 ) interconnecting said circuit elements, said metallization stack comprising a patterned upper metallization layer comprising a first metal portion ( 20 ) and a second metal portion ( 21 ); a passivation stack ( 24, 26, 28 ) covering the metallization stack; a gas sensor including a sensing material portion ( 32, 74 ) on the passivation stack; a first conductive portion ( 38 ) extending through the passivation stack connecting a first region of the sensing material portion to the first metal portion; and a second conductive portion ( 40 ) extending through the passivation stack connecting a second region of the sensing material portion to the second metal portion. A method of manufacturing such an IC is also disclosed.

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Номер записи: 15
14-02-2013 дата публикации

Sensor device

Номер: US20130039380A1
Автор: Joachim Aurich, Sascha Werth, Wolfgang Werner
Принадлежит: Vishay BCcomponents Beyschlag GmbH

A sensor device is provided for detecting thawing on surfaces with interdigital electrodes formed in a resistance layer which is formed on a substrate. In order to develop the sensor device further so that the measuring speed of the sensor device is further increased, the disclosure proposes that the interdigital electrodes and recesses between the interdigital electrodes have a moisture-sensitive hydrophilic surface through condensation cores applied to it.

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Номер записи: 16
18-04-2013 дата публикации

Molecular imprinted nanosensors

Номер: US20130092547A1
Автор: Ranganathan Shashidhar, Xiulan Li, Yufeng Ma
Принадлежит: Polestar Technologies Inc

A molecular recognition sensor system is provided incorporating a molecular imprinted nanosensor device.

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Номер записи: 17
09-05-2013 дата публикации

GAS SENSOR AND METHOD FOR PRODUCING THE SAME

Номер: US20130111974A1
Автор: Barsan Nicolae, Kemmler Jens, Maedler Lutz, Pokhrel Suman, Weimar Udo
Принадлежит:

The invention relates to a gas sensor for detecting gas in the air, especially formaldehyde. The sensor comprises at least one gas-sensitive zone which is preferably a layer on a substrate and which contains the ternary compound InSnOas the gas-sensitive material. In order to produce the gas-sensitive zone, a flame spray pyrolysis (FSP) is carried out, organometallic compounds of indium and tin being used as the reactants. The gas sensor is especially suitable for online gas detection. 1. A sensor for detecting gases , comprising at least one gas-sensitive zone applied on a substrate , characterized in that the gas-sensitive zone contains the ternary compound InSnO.2. The sensor according to claim 1 , characterized in that the at least one gas-sensitive zone is in the form of a layer.3. The sensor according to claim 1 , characterized in that the at least one gas-sensitive zone is applied using a flame pray pyrolysis method (FSP).4. A method for producing a sensor according to claim 1 , wherein the production of the gas-sensitive zone is effected by means of a flame spray pyrolysis (FSP).5. The method according to claim 4 , characterized in that organometallic compounds of indium and tin claim 4 , dissolved in an organic solvent claim 4 , are used as source materials.6. The method according to claim 4 , characterized in that the source materials are indium acetylacetone or tin-2-ethylhexanoate.7. The method according to claim 6 , characterized in that the source materials indium acetylacetone or tin-2-ethylhexanoate are in each case used in the same concentrations between 0.05 and 0.7 mol.8. Use of the sensor according to for online gas detection.9. Use of the sensor according to for detecting formaldehyde10. Use of the sensor according to for detecting gas in the home environment or in business establishments. The present invention relates to a gas sensor for detecting gases in the air, in particular formaldehyde, as well as a method for producing said sensor. ...

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Номер записи: 18
16-05-2013 дата публикации

Inspection Method And Device With Heat Exchangers

Номер: US20130118706A1
Автор: Ciolkosz Theodore D., El-Massih Ziad, Kareh Joseph A.
Принадлежит: WATERS TECHNOLOGIES CORPORATION

An inspection device and method, the device comprising a thermoelectric module () with first and second conducting parts () and a control unit () electrically connected to the thermoelectric module for selectively applying an electric potential to the thermoelectric module to create a temperature difference between the first and second conducting parts. The control unit comprises measuring means configured to measure transiently, in use, a voltage potential across the thermoelectric module. The control unit includes memory means for recording a measured voltage profile and further comprises comparing means () for comparing the measured profile with a predetermined voltage profile stored in the memory means. 1. A method of inspecting a thermally conductive apparatus , the method comprising the steps of:a) placing a first conducting part of a thermoelectric module in thermal contact with the apparatus;b) placing a second conducting part of the thermoelectric module in thermal contact with a thermal mass;c) applying a voltage to the thermoelectric module to create a temperature differential between the first and second conducting parts, thereby heating one of the apparatus and the thermal mass and cooling the other one of the apparatus and the thermal mass;d) ceasing to apply the voltage to the thermoelectric module;e) measuring the profile of the voltage potential across the thermoelectric module over time; andf)comparing the measured profile with a predetermined voltage profile to identify any difference therebetween that could indicate a defect in the apparatus.2. Method according to claim 1 , wherein the thermally conducting apparatus comprises a heat exchanger.3. An inspection device for carrying out a method according to or claim 1 , the device comprising a thermoelectric module with first and second conducting parts and a control unit electrically connected to the thermoelectric module for selectively applying an electric potential to the thermoelectric module ...

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Номер записи: 19
16-05-2013 дата публикации

METHOD AND APPARATUS PROVIDING TEMPERATURE UNIFORMITY

Номер: US20130121370A1
Автор: Buehler Patrick, Niebel Kevin, Sorensen James
Принадлежит: FIRST SOLAR, INC

A temperature uniformity device controls the temperature and temperature uniformity of an object such as a photovoltaic module undergoing testing. The temperature uniformity device includes a thermal conductivity device and a pliable thermally conductive interface material inserted between the object and the thermal conductivity device. 1. A temperature uniformity device comprising:a thermal conductivity device for holding a fluid medium; andan interface material made of a pliable thermally conductive material attached on one side to a front surface of the thermal conductivity device for coupling on the other side to an object.2. The temperature uniformity device of claim 1 , wherein the thermal conductivity device is formed of at least one of molybdenum claim 1 , aluminum claim 1 , copper or combination thereof.3. The temperature uniformity device of claim 1 , wherein the fluid medium comprises a fluid that can be heated and cooled to temperatures ranging from 0° Celsius to 90° Celsius.4. The temperature uniformity device of claim 3 , wherein the fluid medium is a liquid selected from the group consisting of water claim 3 , ethylene glycol or liquid nitrogen.5. The temperature uniformity device of claim 3 , wherein the fluid medium is a gas.6. The temperature uniformity device of claim 3 , wherein a plurality of sensors are attached to a wall of the thermal conductivity device for monitoring the temperature of the fluid medium.7. The temperature uniformity device of claim 1 , wherein the interface material has a thermal conductivity property in the range of about 1.0 W/mK to about 10 W/mK.8. The temperature uniformity device of claim 1 , wherein the interface material has an electrical insulation property in the range of about 10to about 10ohm-cm.9. The temperature uniformity device of claim 1 , wherein the interface material comprises a gel coating.10. The temperature uniformity device of claim 9 , wherein the gel coating is an alumina filled claim 9 , ...

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Номер записи: 20
23-05-2013 дата публикации

GAS SENSOR WITH COMPENSATIONS FOR BASELINE VARIATIONS

Номер: US20130125617A1
Автор: Gouma Pelagia-Irene, STANACEVIC Milutin
Принадлежит: THE RESEARCH FOUNDATION OF STATE UNIVERSITY OF NEW YORK

Reliable, fast and inexpensive breath gas detector systems for medical diagnostics, including personal, handheld monitoring devices for a variety of diseases and conditions, including, for example, asthma, diabetes, blood cholesterol, and lung cancer. A sensor device () for detecting gases includes a sensing element () having an electrical resistance that changes in the presence of a target gas; a readout circuit, electrically coupled to the sensing element due to the presence of the target gas and converts the measurement to a digital signal; and a feedback loop () from a digital unit () to the readout circuit to compensate for variations in a baseline resistance of the sensing element. 1. A sensor for detecting gases comprising:a sensing element having an electrical resistance that changes in the presence of a target gas;a readout circuit, electrically coupled to the sensing element, that measures a change in the resistance of the sensing element due to the presence of the target gas and converts the measurement to a digital signal; anda feedback loop from a digital unit to the readout circuit to compensate for variations in a baseline resistance of the sensing element.2. The sensor of claim 1 , wherein the sensor is incorporated in a handheld unit.3. The sensor of claim 1 , further comprising an array of sensing elements.4. The sensor of claim 3 , further comprising a multi-channel integrated readout circuit.5. The sensor of claim 1 , wherein the readout circuit comprises an A/D converter for converting the measurement to a digital signal.6. The sensor of claim 5 , wherein the A/D converter comprises a first-order single-bit delta-sigma modulator device with a digitally configurable oversampling ratio for controlling the conversion scale.7. The sensor of claim 1 , wherein the sensor maintains a constant current through the sensing element and measures a change in voltage due to the change in resistance.8. The sensor of claim 1 , wherein the sensor keeps the ...

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Номер записи: 21
23-05-2013 дата публикации

Device and Method for Measuring Dynamic Thermal Conductivity of Micro-Structure Fluid

Номер: US20130128916A1
Автор: Chong-Youp Kim, Seok-Won Kim, Seong-Ryong Park, Wook-Hyun Lee
Принадлежит: Korea Institute of Energy Research KIER

A device and method for measuring dynamic thermal conductivity of micro-structure fluid. The device includes an upper fixing plate ( 110 a ) and a lower fixing plate ( 110 b ) which are vertically spaced apart from each other, a lower body ( 150 b ) which defines a side surface of a separation space formed between the upper fixing plate and the lower fixing plate, a rotating plate ( 120 ) which is disposed in the separation space in such a way that gaps are respectively formed among the rotating plate and the upper and lower fixing plates, a shaft ( 140 ) which passes through the upper fixing plate and is coupled to the rotating plate, a heater which installed on an upper portion of the upper fixing plate, and thermocouples ( 118 a ) and ( 118 b ) which are respectively installed in the upper and lower fixing plates.

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Номер записи: 22
30-05-2013 дата публикации

DEVICE FOR MEASURING AT LEAST ONE EXHAUST GAS COMPONENT IN AN EXHAUST GAS DUCT OF A COMBUSTION PROCESS

Номер: US20130133400A1
Автор: Jaeger Hans-Martin, Schuler Dieter
Принадлежит: ROBERT BOSCH GMBH

A device (), which contains at least one exhaust gas probe (), is proposed for measuring at least one exhaust gas component in an exhaust gas duct () of a combustion process. The device is characterized in that the exhaust gas probe () comprises at least one air connection (), at least one air duct () leading past a sensing element () of said exhaust gas probe () and connected to the air connection () as well as at least one air outlet opening (). 1141616206064162022. A device for measuring at least one exhaust gas component in an exhaust gas duct () of a combustion process , comprising at least one exhaust gas probe () , characterized in that the exhaust gas probe () has at least one air connection () , at least one air duct () leading past a sensing element () of said exhaust gas probe () and connected to the air connection () as well as at least one air outlet opening ().2242016. The device according to claim 1 , characterized in that an air supply device () is provided claim 1 , which is connected to the at least one air connection () of the exhaust gas probe ().3243026. The device according to claim 2 , characterized in that the air supply device () contains a valve () to permit or block flow of ambient air ().42428. The device according to claim 2 , characterized in that the air supply device () contains a compressor ().528. The device according to claim 4 , characterized in that the compressor () is a part of an exhaust gas turbocharger.62432. The device according to claim 2 , characterized in that the air supply device () contains an air heater ().7663214. The device according to claim 6 , characterized in that at least one part () of the air heater () is disposed in the exhaust gas duct ().822181614. The device according to claim 1 , characterized in that the at least one air outlet opening () is disposed in a region () of the exhaust gas probe () protruding into the exhaust gas duct ().91424. The device according to claim 1 , characterized in that a ...

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Номер записи: 23
30-05-2013 дата публикации

Humidity sensor and method of sensing humidity

Номер: US20130133420A1
Автор: Chin-Ying Huang, Chung-Chin Huang, Hsin-Ming Huang, Hsing-Hsiung Huang
Принадлежит: Grand Mate Co Ltd

The present invention provides a humidity sensor including a first conductor, a second conductor, a power supply unit, and a current sensing unit. The first and the second conductors are separated from each other for a predetermined distance and are placed at a predetermined place. The power supply unit supplies high voltage to the first conductor, and the current sensing unit senses a change of current in the conductor and generate a signal in association with the change of the current. Therefore, the humidity sensor may operate in any environment, such as high temperature and high pressure.

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Номер записи: 24
06-06-2013 дата публикации

COLUMN WITH GAS DISTRIBUTION AND METHOD OF CHARACTERIZING A GAS-LIQUID CONTACTING ELEMENT

Номер: US20130139569A1
Автор: Alix Pascal, Raynal Ludovic
Принадлежит:

The object of the invention is a gas-liquid contacting column comprising a gas supply line (), a liquid supply line (), at least one functional zone () comprising at least one gas-liquid contacting element, functional zone () being arranged between gas supply line () and liquid supply line (). Gas supply line () cooperates with a distribution zone () arranged between the gas supply line and the functional zone, distribution zone () consisting of a packing whose height is so selected that the gas coming from the distribution zone circulates with a local velocity over the bed inlet section of the functional zone ranging between −50% and +50% of the average velocity of the gas circulating in the column. 1) A gas-liquid contacting column comprising a gas supply line , a liquid supply line , at least one functional zone comprising at least one gas-liquid contacting element , functional zone being arranged between gas supply line and liquid supply line , characterized in that gas supply line cooperates with a distribution zone arranged between gas supply line and functional zone , distribution zone consisting of a packing whose height is so selected that the gas coming from distribution zone circulates with a local velocity ranging between −50% and +50% of the column section at the inlet of functional zone in relation to the average velocity of the gas circulating in the column.2) A column as claimed in claim 1 , wherein the flooding factor of the packing of distribution zone is at least 20% less than the flooding factor of the contacting elements of functional zone.3) A column as claimed in claim 1 , wherein the height of distribution zone ranges between 0.05 and 2.0 m.4) A column as claimed in claim 1 , characterized in that a space is provided between distribution zone and functional zone claim 1 , space being at least above 50 mm in height.5) A column as claimed in claim 1 , wherein gas supply line is oriented in a perpendicular direction with respect to the height of ...

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Номер записи: 25
06-06-2013 дата публикации

Microsensor for mercury

Номер: US20130141122A1
Автор: HUA Chen, Ronald E.G. Van Hal
Принадлежит: Schlumberger Technology Corp

Methods and devices for detecting a concentration of one or more element in hydrocarbon and/or natural gas in an oil and gas field application. The device including a microstructure having a low thermal mass suspended within a channel, the microstructure includes a supporting layer and a insulating layer; a controllable thermal device in communication with the supporting layer of the microstructure, wherein the controllable thermal device is controllably heated to one or more release temperature of the one or more element; a sensing layer arranged on the insulating layer to absorb molecules of the one or more element from hydrocarbon and/or natural gas; a detecting and measuring resistance device in communication with the sensing layer for measuring the resistance changes caused by absorption of molecules of the one or more element onto the sensing layer at a first temperature and a second temperature, and storing the data on a processor.

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Номер записи: 26
13-06-2013 дата публикации

APPARATUS AND METHOD FOR OBTAINING GASEOUS HYDROGEN CONCENTRATIONS IN A MECHANICAL VACUUM PUMP GAS STREAM OF A BWR

Номер: US20130145819A1
Автор: Davina Gerald F., Garcia Susan Elaine, Giannelli Joseph F., Odell Andrew D., Scholz Robert J., Tangen James A.
Принадлежит: ELECTRIC POWER RESEARCH INSTITUTE, INC.

An apparatus adapted to measure gaseous hydrogen concentrations in a mechanical vacuum pump (MVP) gas stream includes connection ports adapted to allow the apparatus to be connected to an MVP system and allow a gas stream sample to be taken from the MVP gas stream. The apparatus further includes a hydrogen concentration analyzer to measure Hconcentrations of the gas stream sample taken from the MVP gas stream. 1. An apparatus adapted to measure gaseous hydrogen concentrations in a mechanical vacuum pump (MVP) gas stream , comprising connection ports adapted to allow the apparatus to be connected to an MVP system and allow a gas stream sample to be taken from the MVP gas stream and a hydrogen concentration analyzer to measure Hconcentrations of the gas stream sample taken from the MVP gas stream.2. The apparatus according to claim 1 , further including a cart for supporting the apparatus and allowing the apparatus to be transported to a desired location.3. The apparatus according to claim 1 , further including a vacuum pump adapted to draw the gas stream sample from the MVP gas stream such that the gas stream sample flows through the hydrogen concentration analyzer for measurement of Hconcentrations.4. The apparatus according to claim 4 , further including a relief valve adapted to open when a discharge pressure from the vacuum pump is greater than a pre-determined pressure.5. The apparatus according to claim 1 , further including a nitrogen purge regulator to allow a nitrogen supply to be used to purge the hydrogen concentration analyzer prior to conducting measurements of Hconcentrations.6. The apparatus according to claim 5 , wherein the nitrogen purge regulator regulates a pressure of nitrogen being supplied to the hydrogen concentration analyzer.7. The apparatus according to claim 1 , further including a desiccant column adapted to remove moisture from the gas stream sample prior to entering the hydrogen concentration analyzer.8. The apparatus according to claim ...

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Номер записи: 27
27-06-2013 дата публикации

METHOD AND APPARATUS FOR CONTINUOUS MEASUREMENT OF DIFFERENCES IN GAS CONCENTRATIONS

Номер: US20130160524A1
Автор: Lighton John R.B.
Принадлежит:

A method for continuous measurement of differences in gas concentrations, comprises providing at least first and second gas analyzers, connecting a stream of incurrent fluid to a chamber containing an animal, withdrawing air from the chamber to form a stream of excurrent fluid, taking first subsamples of the excurrent fluid in a first subsampler, taking a subsample of the incurrent fluid in a second subsampler, alternately providing excurrent fluid from the first subsampler to the first gas analyzer and to the second gas analyzer to measure the gas concentrations in the excurrent fluid, and alternately providing incurrent air from the second subsampler to the first gas analyzer and to the second gas analyzer to measure the gas concentrations in the incurrent fluid. 1. A method for continuous measurement of differences in gas concentrations , comprising:providing at least first and second gas analyzers;providing a stream of incurrent gas to a chamber;withdrawing gas from the chamber to form a stream of excurrent gas;providing a flow of excurrent gas to the first gas analyzer for a first excurrent-gas measurement interval;providing a flow of excurrent gas to the second gas analyzer for a second excurrent-gas measurement interval;interrupting the flow of excurrent gas to the first gas analyzer and providing a flow of incurrent gas to the first gas analyzer for a first baseline measurement interval; andinterrupting the flow of excurrent gas to the second gas analyzer and providing a flow of incurrent gas to the second gas analyzer for a second baseline measurement interval, wherein:the first baseline measurement interval is shorter than the first excurrent-gas measurement interval;the second baseline measurement interval is shorter than the second excurrent-gas measurement interval;the first and second baseline measurement intervals are non-overlapping, andtransitions between excurrent-gas measurement intervals and baseline measurement intervals of the first and second ...

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Номер записи: 28
15-08-2013 дата публикации

GAS SENSOR AND SUBASSEMBLY UNIT THEREFOR

Номер: US20130205872A1
Автор: Katou Hidekazu, Taguchi Masataka
Принадлежит: NGK SPARK PLUG CO., LTD.

The present invention aims to provide a gas sensor that can favorably be assembled by proper positioning of a connection terminal relative to a separator and a subassembly unit for such a gas sensor. In an oxygen sensor, a separator has protruding portions formed on a surface of a front end part thereof; an outer connection terminal has an outer fitting portion fixed to outer circumferential surfaces of the protruding portions under its biasing force; and an inner connection terminal has an inner fitting portion fixed to inner circumferential surfaces of the protruding portions under its biasing force. Thus, it is less likely that the outer and inner connection terminals will be displaced in position relative to the separator and is possible to allow proper positioning of the outer and inner connection terminals. 1. A gas sensor subassembly unit for use in manufacturing a gas sensor , the gas sensor comprising: a cylindrical sensor element; a connection terminal located on a rear end side of the sensor element and held in contact with an electrode of the sensor element; and a separator located rear of the sensor element and having a through hole in which a rear end part of the connection terminal is inserted ,wherein the gas sensor subassembly unit comprises the connection terminal and the separator integrally mounted together,wherein the connection terminal has a cylindrical fitting portion formed on a front end part thereof so as to be fitted to the sensor element and brought into contact with the electrode of the sensor element and an extension portion formed on a rear end part thereof so as to extend rearward from the fitting portion and be inserted in the through hole of the separator;wherein the separator has a protruding portion formed on a surface of a front end part thereof so as to protrude frontward; andwherein the fitting portion of the connection terminal is fixed to a radially lateral surface of the protruding portion under the action of a biasing ...

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Номер записи: 29
15-08-2013 дата публикации

Metal nanoparticle organic composite film and method for its preparation

Номер: US20130210679A1
Автор: Gabriele Nelles, Isabelle Raible, Nadejda Krasteva, Yvonne Joseph
Принадлежит: Sony Corp

The present invention relates to method for preparing a metal nanoparticle organic composite film, preferably a metal nanoparticle organic composite film of a chemical sensing device, to a metal nanoparticle organic composite film obtained by said method, and to a chemical sensing device comprising a metal nanoparticle organic composite film or an array of different metal nanoparticle organic composite films obtained by said method.

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Номер записи: 30
29-08-2013 дата публикации

ANALYSIS SYSTEM AND METHOD FOR VISUALIZING HEAT CONDUCTION

Номер: US20130223474A1
Автор: Kwak Jin Woo, Moon You Sung
Принадлежит: HYUNDAI MOTOR COMPANY

Disclosed is an analysis system and method for visualizing heat conduction of a solid state sample. The analysis system includes a sealed jig chamber, a jig, an air tempering unit, and a thermal image camera. The sealed jig chamber includes a chamber door for opening/closing the jig chamber. The jig is removeably mounted in the jig chamber and comprises a heat source in surface contact with a solid state sample to induce the heat conduction of the solid state sample. The air tempering unit supplies hot air into the jig and supplies cool air into the jig chamber. The thermal image camera photographs the heat conduction of the solid state sample to acquire a thermal image or video. 1. An analysis system for visualizing heat conduction , comprising:a sealed jig chamber including a chamber door configured to open and close the jig chamber;a jig removeably mounted in the jig chamber and including a heat source in surface contact with a solid state sample to induce the heat conduction of the solid state sample;an air tempering unit configured to supply hot air into the jig and supply cool air into the jig chamber; anda thermal image camera configured to photograph the heat conduction of the solid state sample to acquire a thermal image or video.2. The analysis system of claim 1 , wherein the jig comprises at least one of a jig configured to measure the heat conduction in a thickness direction of the solid state sample claim 1 , a jig configured to measure the heat conduction in a longitudinal direction of the solid state sample claim 1 , and a jig configured to measure the heat conduction in a radial direction of the solid state sample.3. The analysis system of claim 2 , wherein the jig configured to measure the heat conduction in the thickness direction includes a planar heat source that is disposed on one surface of the jig and is in contact with one entire surface of the solid state sample claim 2 , and a hot air inlet and a hot air outlet configured to receive and ...

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Номер записи: 31
12-09-2013 дата публикации

THERMAL CONDUCTIVITY MEASUREMENT APPARATUS FOR ONE-DIMENSIONAL MATERIAL

Номер: US20130235900A1
Автор: FAN SHOU-SHAN, LI QING-WEI, LIU CHANG-HONG
Принадлежит:

A thermal conductivity measurement apparatus for measuring a thermal conductivity of a one-dimensional material includes a substrate, a vacuum chamber receiving the substrate and four spaced electrodes. The one-dimensional material spans across the four spaced electrodes. A middle part of the one-dimensional material, located between the second and third electrodes, is suspended.

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Номер записи: 32
10-10-2013 дата публикации

MICROMECHANICAL SUBSTRATE FOR A DIAPHRAGM WITH A DIFFUSION BARRIER LAYER

Номер: US20130264660A1
Автор: Fleischer Maximilian, Freudenberg Oliver, Hedler Harry, Schieber Markus, Schreiner Manfred, Weidner Karl, Wiesner Kerstin, Zapf Jörg
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

At least two separate single-crystal silicon layers are formed in a micromechanical substrate which has a diaphragm in a partial region. The diaphragm has a thickness of less than 20 μm and includes part of a first of the single-crystal silicon layers. The substrate construction also includes a heating element configured to generate a temperature of more than 650° C. in at least part of the diaphragm. The substrate includes at least one diffusion barrier layer that reduces the oxidation of the first single-crystal silicon layer. 111-. (canceled)12. A substrate construction , comprising:a substrate having at least two separate monocrystalline silicon layers and a membrane in a partial region, the membrane having a thickness of less than 200 μm and forming a part of a first monocrystalline silicon layer; andat least one diffusion barrier layer covering at least the membrane and reducing oxidation of the first monocrystalline silicon layer.13. The substrate construction as claimed in claim 12 , wherein the at least one diffusion barrier layer is formed on a top side and an underside of the first monocrystalline silicon layer.14. The substrate construction as claimed in claim 13 , wherein the diffusion barrier layer is formed of at least one material selected from the group consisting of platinum claim 13 , platinum silicide claim 13 , silicon nitride and silicon carbide.15. The substrate construction as claimed in claim 14 , wherein the membrane is connected to the rest of the substrate via webs.16. The substrate construction as claimed in claim 15 , wherein the webs each have at least one angled portion.17. The substrate construction as claimed in claim 16 , further comprising a heating element generating a temperature of more than 650° C. in at least one part of the membrane.18. The substrate construction as claimed in claim 17 , further comprising:an underlying insulating layer.; andan adhesion-promoting layer substantially consisting of a metal oxide provided ...

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Номер записи: 33
17-10-2013 дата публикации

Ethylene Sensor

Номер: US20130273665A1
Автор: Esser Birgit, Schnorr Jan M., Swager Timothy M.
Принадлежит:

A sensor device can include a transition metal complex capable of interacting with a carbon-carbon multiple bond moiety. The sensor can detect the fruit-ripening hormone ethylene with high sensitivity. 1. A sensor comprising:a conductive material comprising a carbon-carbon multiple bond moiety, the conductive material being in electrical communication with at least two electrodes; anda transition metal complex capable of interacting with a carbon-carbon multiple bond moiety.2. The sensor of claim 1 , wherein the conductive material includes a carbon nanotube.3. The sensor of claim 2 , wherein the transition metal complex is capable of forming a stable complex with ethylene.4. The sensor of claim 3 , wherein the transition metal complex is associated with the carbon nanotube by coordination of the transition metal to the carbon-carbon multiple bond moiety.5. The sensor of claim 3 , wherein the transition metal complex is associated with the carbon nanotube by a covalent link between the carbon nanotube and a ligand of the transition metal complex.6. The sensor of claim 3 , wherein the transition metal complex is associated with the carbon nanotube by a polymer which is non-covalently associated with the carbon nanotube.7. The sensor of claim 1 , wherein the transition metal complex is bound to the carbon-carbon multiple bond moiety of the conductive material.10. The sensor of claim 1 , wherein the transition metal complex and the carbon-carbon multiple bond moiety are mixed with a polymer.11. The sensor of claim 10 , wherein the carbon-carbon multiple bond moiety is a carbon nanotube and the polymer is a polymer bead.12. A method of sensing an analyte claim 10 , comprising:exposing a sensor to a sample, the sensor including:a conductive material comprising a carbon-carbon multiple bond moiety, the conductive material being in electrical communication with at least two electrodes; anda transition metal complex capable of interacting with a carbon-carbon multiple bond ...

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Номер записи: 34
24-10-2013 дата публикации

Holographic Detection Device and Method for Content of Gas in GIS Switch

Номер: US20130277559A1
Автор: Hou Xingzhe, Hu Xiaorui, Miao Yulong, Qiu Ni, Yao Qiang, Zhang Jiju
Принадлежит: CHONGQING ELECTRIC POWER RESEARCH INSTITUTE

A holographic detection device for a content of a gas in a GIS switch includes a laser and a data process system. The laser includes a laser emitter and a laser receiver which are fixed at a sampling port of the GIS switch and connected with the data process system. A holographic detection method for a content of a gas in a GIS switch includes emitting a laser beam towards the inside of the GIS switch; receiving the laser beam from the inside of the GIS switch, and calculating a content of hydrogen fluoride gas inside the GIS switch according to an intensity of the emitted laser beam and an intensity of the received laser beam. Since the laser beam goes through the inside of the GIS switch, there is a small error in the detection result, which thus can reflect a real state inside the GIS switch. 1. A holographic detection device for a content of a gas in a GIS switch comprising a laser; and a data process system , wherein the laser comprises a laser emitter and a laser receiver which are fixed at a sampling port of the GIS switch by a flange and connected with the data process system by an optical cable , and whereinthe laser emitter is adapted to emit a laser beam towards inside of the GIS switch,the laser receiver is adapted to receive the laser beam emitted from the laser emitter and coming from the inside of the GIS switch, andthe data process system is adapted to calculate the content of hydrogen fluoride gas inside the GIS switch according to an intensity of the laser beam emitted from the laser emitter and an intensity of the laser beam received by the laser receiver.2. The device according to claim 1 , further comprising a laser assistant unit which comprises a temperature control module claim 1 , a current control module and a signal generator.3. The device according to claim 1 , wherein the laser emitter is a tunable semiconductor laser with a center wavelength of 2476 nm.4. The device according to claim 3 , wherein the data process system is a central ...

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Номер записи: 35
31-10-2013 дата публикации

BIOLOGICAL GAS DETECTION APPARATUS AND BIOLOGICAL GAS DETECTION METHOD

Номер: US20130283889A1
Автор: Hiyama Satoshi, Moritani Yuki, Onaga Kazuo, Sugimura Mariko, TANAKA Katsuyuki, Yamada Yuuki
Принадлежит:

A biological gas detection apparatus of an embodiment of the present invention includes: a sensor unit including plural types of gas sensors; a control unit of the sensor unit; a data recording unit; and a data analyzing unit, wherein the data recording unit includes a database on properties of sensitivities of the gas sensors for a single body of a desired gas component, a single body of an interference gas component, and a mixed gas of these that are included in the biological gas, and the data analyzing unit calculates concentration of the desired gas component based on sensitivities of the gas sensors output when detecting the biological gas and the database. 1. A biological gas detection apparatus comprising:a sensor unit including plural types of gas sensors;a control unit of the sensor unit;a data recording unit; anda data analyzing unit,wherein the data recording unit includes a database on properties of sensitivities of the gas sensors for a single body of a desired gas component, a single body of an interference gas component, and a mixed gas of these that are included in the biological gas, andthe data analyzing unit calculates concentration of the desired gas component based on sensitivities of the gas sensors output when detecting the biological gas and the database.2. The biological gas detection apparatus as claimed in claim 1 ,wherein two types of the gas sensors are provided, in which a first gas sensor is a semiconductor type gas sensor having relatively high detection capability for the desired gas component, a second gas sensor is a semiconductor type gas sensor that has detection capability at least for the interference gas component and that has sensing gas properties different from the first gas sensor.3. The biological gas detection apparatus as claimed in claim 1 , wherein the second gas sensor is a semiconductor type gas sensor having almost similar detection capability for the desired gas component and the interference gas component.4. The ...

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Номер записи: 36
31-10-2013 дата публикации

GAS SENSOR

Номер: US20130285682A1
Автор: Biskupski Diana, Fleischer Maximilian, Moos Ralf, Schönauer Daniela, Wiesner Kerstin
Принадлежит:

A combined gas sensor includes a first electrode and a second electrode, wherein the first and second electrodes are connected via an ion-conducting material. The first electrode is covered, in part, by a first catalytically active material. Further, a resistive gas sensor formed by a third electrode is arranged such that the third electrode is in direct contact with the first catalytic material and is not in direct contact with the first electrode. 1. Combined gas sensor , comprising: wherein the first and second electrodes are connected via an ion-conducting material,', 'wherein the first electrode is covered, at least in part, by a first catalytically active material,, 'a first electrode and a second electrode,'}a resistive gas sensor formed by a third electrode such that the third electrode is in direct contact with the first catalytic material and is not in direct contact with the first electrode.2. Combined gas sensor according to claim 1 , wherein at least 20% of the first electrode consists of a metal.3. Combined gas sensor according to claim 1 , wherein the first and second electrodes consist of the same material.4. Combined gas sensor according to claim 1 , comprising at least one further first electrode which is covered claim 1 , at least in part claim 1 , by a second catalytically active material.5. Combined gas sensor according to claim 4 , wherein the first catalytically active material is different from the second catalytically active material.6. Combined gas sensor according to claim 1 , comprising only the second electrode.7. Combined gas sensor according to claim 1 , wherein the first catalytically active material exhibits a specific resistance of at least 1 μΩm at temperatures below 800° C.8. Combined gas sensor according to claim 1 , wherein the second electrode is covered claim 1 , at least in part claim 1 , by a second catalytically active material.9. Combined gas sensor according to claim 8 , wherein the first catalytically active material is ...

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Номер записи: 37
31-10-2013 дата публикации

Two-Dimensional Electron Gas (2DEG)-Based Chemical Sensors

Номер: US20130288378A1
Автор: Jacob H. Melby, Jason Gu, Robert F. Davis
Принадлежит: CARNEGIE MELLON UNIVERSITY

Sensors for sensing/measuring one or more analytes in a chemical environment. Each sensor is based on a semiconductor structure having an interfacial region containing a two-dimensional electron gas (2DEG). A catalyst reactive to the analyte(s) is in contact with the semiconductor structure. Particles stripped from the analyte(s) by the catalyst passivate the surface of the semiconductor structure at the interface between the catalyst and the structure, thereby causing the charge density in the 2DEG proximate the catalyst to change. When this basic structure is incorporated into an electronic device, such as a high-electron-mobility transistor (HEMT) or a Schottky diode, the change in charge density manifests into a change in an electrical response of the device. For example, in an HEMT, the change in charge density manifests as a change in current through the transistor, and, in a Schottky diode, the change in charge density manifests as a change in capacitance.

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Номер записи: 38
14-11-2013 дата публикации

COMBUSTIBLE GAS DETECTION DEVICE

Номер: US20130298638A1
Автор: Ichikawa Daisuke, Kitanoya Shoji, Watanabe Masaya, Yamashita Masahiro
Принадлежит: NGK SPARK PLUG CO., LTD.

A combustible gas detection device includes an energization control circuit which controls the switching of the energization state of a heat generation resistor every predetermined time period such that the heat generation resistor alternately has resistances corresponding to two predetermined temperatures, a temperature measurement resistor disposed on the same substrate on which the heat generation resistor is disposed, where its resistance changes with the environmental temperature, a gas concentration computation section which calculates the combustible gas concentration by using a voltage generated across the heat generation resistor which is detected when electricity is supplied to the heat generation resistor and the environmental temperature based on a voltage change caused by a change in the resistance of the temperature measurement resistor. The predetermined time period is such that a change in the environmental temperature which occurs when the energization control circuit switches the energization state, falls within a range of 0.5° C. 1. A combustible gas detection device comprising:a heat generation resistor disposed in an object atmosphere where its resistance changes with its own temperature;an energization control section which controls the switching of an energization state of the heat generation resistor every time a predetermined time period elapses such that the heat generation resistor alternately has resistances corresponding to two predetermined temperatures set in advance;a temperature measurement resistor disposed on a substrate having the heat generation resistor disposed thereon where its resistance changes with an environmental temperature which is the temperature of the object atmosphere;a gas concentration computation section which calculates a concentration of a combustible gas contained in the object atmosphere by using a voltage generated across the heat generation resistor which is detected when electricity is supplied to the heat ...

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Номер записи: 39
14-11-2013 дата публикации

REMOTE AIR MONITORING ARRAY SYSTEM

Номер: US20130298642A1
Автор: Gillette II William J.
Принадлежит:

An air monitoring array system can comprise a plurality of air quality sensor devices arranged within a selected area, which can be configured to measure air pollutant levels in the selected area. Furthermore, each of the plurality of air quality sensor devices can comprise at least one sensor operatively coupled to a controller, and a wireless communication device also coupled to the controller. In various embodiments, the controller can be configured to receive a measured input from the at least one sensor. Also, the wireless communication device can be configured to communicate with a central server. 1. An air monitoring array system comprising:a plurality of air quality sensor devices arranged within a selected area, wherein the plurality of air quality sensor devices is configured to measure air pollutant levels in the selected area; at least one sensor operatively coupled to a controller, wherein the controller is configured to receive a measured input from the at least one sensor; and', 'a wireless communication device coupled to the controller, wherein the wireless communication device is configured to communicate with a central server., 'wherein each of the plurality of air quality sensor devices comprise2. The air monitoring array system of claim 1 , wherein the central server is configured to determine if one or more portions of the selected area have air pollutant levels exceeding a predetermined threshold.3. The air monitoring array system of claim 2 , wherein the predetermined threshold is set by a government agency.4. The air monitoring array system of claim 1 , wherein the at least one sensor is at least one of an e-nose sensor circuit or a hydrocarbon sensor.5. The air monitoring array system of claim 1 , wherein the at least one sensor is configured to monitor benzene levels.6. The air monitoring array system of claim 1 , wherein each of the plurality of air quality sensor devices is powered by at least one of solar power or a battery.7. The air ...

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Номер записи: 40
14-11-2013 дата публикации

Substance detection sensor

Номер: US20130300441A1
Автор: Hiroshi Yamazaki, Hiroyuki Hanazono, Toshiki Naito
Принадлежит: Nitto Denko Corp

A substance detection sensor includes an insulating layer; two electrodes spaced in opposed relation to each other on the insulating layer; and conductive layers formed between the two electrodes on the insulating layer so as to electrically connect the two electrodes, and of which a swelling ratio varies depending on the type and/or amount of a specific gas. The conductive layers are formed by dividing into plural layers between the two electrodes.

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Номер записи: 41
14-11-2013 дата публикации

Detecting Thermal Interface Material ('TIM') Between A Heat Sink And An Integrated Circuit

Номер: US20130301671A1
Автор: Gregory D. Sellman, Luke D. Remis, William M. Megarity
Принадлежит: International Business Machines Corp

Detecting TIM between a heat sink and an integrated circuit, the integrated circuit including TIM detection points adapted to receive TIM upon installation of the heat sink and including a TIM detection device configured to be activated upon contact with TIM, including: receiving, upon installation of the heat sink on the integrated circuit and the TIM, TIM in one or more of the TIM detection points; activating, by the TIM in each of the one or more TIM detection points receiving the TIM, a TIM detection device; determining, by a TIM detection module of the integrated circuit in dependence upon the activations of the TIM detection devices, sufficiency of the TIM; and responsive to determining that the TIM between the heat sink and the integrated circuit is insufficient, controlling, in real-time by the TIM detection module, operation of the integrated circuit to reduce heat generated by the integrated circuit.

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Номер записи: 42
28-11-2013 дата публикации

Method for determining the water content of a mixed alcohol/gasoline fuel in an internal combustion engine, and device for implementing same

Номер: US20130317724A1
Автор: Jean-Paul Ferrie
Принадлежит: Continental Automotive France SAS, Continental Automotive GmbH

Disclosed is a method for determination of the water content of a mixed alcohol/gasoline fuel in an internal combustion engine of a vehicle, which includes the stages of: determination of a first value for alcohol content of the fuel using a measurement of combustion richness; determination of a second value for alcohol content of the fuel using a measurement recorded by a sensor for measurement of the electrical conductivity of the fuel; comparison of the first value and the second value; and, when the first value is lower than the second value, determination of the water content of the fuel by assigning a predetermined value for water content associated with the pair consisting of the first value and of the second value for alcohol content.

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Номер записи: 43
05-12-2013 дата публикации

WATER-CONCENTRATION DETECTION DEVICE

Номер: US20130319111A1
Автор: Nishida Chieko, TAMURA Yoshiyuki, Yabe Tatsuya
Принадлежит: Mitsubishi Electric Corporation

The water-concentration detection device for detecting a water concentration of insulating gas filled in a gas-insulated device includes: porous electrodes having porous properties that are arranged to face each other in the insulating gas; a solid electrolyte membrane that is sandwiched between and fixedly attached to the electrodes and has hydrogen-ion conductivity; a voltage application unit that applies an alternating-current voltage at a frequency of 325 Hz or a frequency of 10 Hz or lower to the electrodes; an impedance measurement unit that measures an alternating-current impedance between the electrodes in a state in which the alternating-current voltage is applied to the electrodes; and a water-concentration detection unit that detects the water concentration of the insulating gas based on the alternating-current impedance measured by the impedance measurement unit. 111-. (canceled)12. A water-concentration detection device for detecting a water concentration of insulating gas filled in a gas-insulated device , the water-concentration detection device comprising:porous electrodes that are arranged to face each other in the insulating gas;a solid electrolyte membrane that is sandwiched between and fixedly attached to the electrodes, and has hydrogen-ion conductivity;a voltage application unit that applies an alternating-current voltage to the electrodes at a frequency of 325 Hz or a frequency equal to or lower than 10 Hz;an impedance measurement unit that measures an alternating-current impedance between the electrodes in a state in which the alternating-current voltage is applied to the electrodes;a logarithmic amplifier that logarithmically converts the alternating-current impedance measured by the impedance measurement unit and outputs a conversion result;a water-concentration detection unit that detects a water concentration of the insulating gas based on the alternating-current impedance outputted from the logarithmic amplifier;a gas chamber in which ...

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Номер записи: 44
12-12-2013 дата публикации

GAS SENSOR

Номер: US20130327121A1
Автор: Atsumi Takayoshi, Fujita Yasuhiro, SHIMAZAKI Yuji
Принадлежит:

A protector has a two-stage structure that includes a large-diameter portion and a small-diameter portion. The large-diameter portion includes a cylindrical first peripheral wall and a first front end wall. The small-diameter portion includes a cylindrical second peripheral wall connected to the first front end wall and a second front end wall connected to a front end portion of the second peripheral wall. Opening portions are not formed in the first and second peripheral walls. First opening portions, which are opened toward only first recessed portions and an inner surface of the first peripheral wall, are formed at the first front end wall. A second recessed portion and second opening portions, which are formed in the second recessed portion and are opened toward an inner surface of the second peripheral wall, are formed in the second front end wall. 1. A gas sensor having an axis , the gas sensor comprising:a detecting element extending in the axial direction and including a detecting portion provided at a front end portion thereof and detecting a specific gas contained in a gas to be detected;a main metal fitting surrounding and holding the radial periphery of the detecting element in a state that the detecting portion protrudes from a front end portion of the main metal fitting; anda protector fixed to the front end portion of the main metal fitting and accommodating the detecting portion therein, a large-diameter portion including a cylindrical first peripheral wall and a first front end wall connected to a front end portion of the first peripheral wall,', 'a small-diameter portion connected to the first front end wall, protruding forward from the large-diameter portion in the axial direction, and including a cylindrical second peripheral wall connected to the first front end wall and a second front end wall connected to a front end portion of the second peripheral wall,', 'first recessed portions formed at the first front end wall and recessed rearward in ...

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Номер записи: 45
12-12-2013 дата публикации

METHOD FOR SETTING A TEMPERATURE OF A SENSOR ELEMENT

Номер: US20130327124A1
Автор: Burak Ingmar, Fey Michael, Hamann Reinhard, Riemann Markus, Schneider Jens
Принадлежит:

A method for setting a temperature of a sensor element, which is heatable with the aid of a heating device, for detecting at least one property of a gas in a measuring gas chamber includes at least one regulation of the heating device, the regulation including: (a) detecting at least one actual value of at least one controlled variable of the sensor element, (b) ascertaining a setpoint value of the at least one controlled variable, (c) generating at least one manipulated variable of the heating device with the aid of a comparison of the setpoint value and the actual value, and (d) in a monitoring step, checking at least one parameter used to set the temperature, and the at least one manipulated variable being influenced as a function of the check. 111-. (canceled)12. A method for setting a temperature of a sensor element which is heatable with the aid of a heating device , wherein the sensor element is configured for detecting a fraction of at least one gas component in a gas mixture in a measuring gas chamber , the method comprising:performing a regulation of the heating device, wherein the regulation includes:a) detecting at least one actual value of at least one controlled variable of the sensor element;b) ascertaining a setpoint value of the at least one controlled variable;c) generating at least one manipulated variable of the heating device with the aid of a comparison of the setpoint value and the actual value of the at least one controlled variable; andd) performing at least one monitoring step in which at least one parameter used for setting the temperature of the sensor is checked, wherein the at least one manipulated variable is influenced as a function of the check.13. The method as recited in claim 12 , further comprising:detecting at least one control variable characterizing an influence of surroundings of the sensor element on the temperature of the sensor element, wherein the at least one control variable includes one of: an ambient temperature of ...

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Номер записи: 46
12-12-2013 дата публикации

METHODS FOR DEPOSITION OF MATERIALS INCLUDING MECHANICAL ABRASION

Номер: US20130330231A1
Автор: AZZARELLI Joseph M., Esser Brigit, Mirica Katherine A., Schnorr Jan, Swager Timothy M., Weis Jonathan G.
Принадлежит: Massachusetts Institute of Technology

Methods described herein may be useful in the fabrication and/or screening of devices (e.g., sensors, circuits, etc.) including conductive materials. In some embodiments, a conductive material is formed on a substrate using mechanical abrasion. The methods described herein may be useful in fabricating sensors, circuits, tags for remotely-monitored sensors or human/object labeling and tracking, among other devices. In some cases, devices for determining analytes are also provided. 1. A method for fabricating a device , comprising:providing an article comprising a conductive material;contacting the article with a surface of a substrate via mechanical abrasion, thereby forming the conductive material on the surface of the substrate;providing an electrode material in electrochemical communication with the conductive material; andapplying a potential to the electrode material.2. (canceled)3. A method for fabricating a device , comprising:providing an article comprising a conductive material, wherein the article is in solid form;contacting the article in solid form with a surface of a substrate and in the absence of a solvent, thereby forming the conductive material on the surface of the substrate; andforming an electrical circuit comprising the conductive material.4. (canceled)5. A method as in claim 1 , wherein the conductive material comprises nanostructures claim 1 , polymers claim 1 , small molecules claim 1 , metal-containing species claim 1 , biological species claim 1 , or combinations thereof.6. A method as in claim 1 , wherein the conductive material comprises carbon nanotubes claim 1 , graphene claim 1 , polymers claim 1 , small molecules claim 1 , metal salts claim 1 , proteins claim 1 , DNA claim 1 , or combinations thereof.7. A method as in claim 1 , wherein the conductive material is a nanotube or graphite.8. A method as in claim 1 , wherein the conductive material is a polymer claim 1 , metal claim 1 , nanoparticle claim 1 , or small molecule.9. A method ...

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Номер записи: 47
19-12-2013 дата публикации

Gas Sensitive Materials for Gas Detection and Methods of Making

Номер: US20130333446A1
Автор: Gerasimov Genrikh Nikolaevich, Gromov Vladimir Fedorovich, Rozenberg Valeriya Isaakovna, Trakhtenberg Leonid Israilevich
Принадлежит:

A gas sensitive material comprising SnOnanocrystals doped with InOand an oxide of a platinum group metal, and a method of making the same. The platinum group metal is preferably Pd, but also may include Pt, Ru, Ir, and combinations thereof. The SnOnanocrystals have a specific surface of 7 or greater, preferably about 20 m2/g, and a mean particle size of between about 10 nm and about 100 nm, preferably about 40 nm. A gas detection device made from the gas sensitive material deposited on a substrate, the gas sensitive material configured as a part of a current measuring circuit in communication with a heat source. 128-. (canceled)29. A method of forming a gas sensitive material , the method comprising:{'sub': 2', '2', '3, 'preparing a mixture of SnO, InO, and a salt of Pd;'}heating the mixture to a sufficient temperature to convert the salt of Pd to an oxide of Pd; and{'sub': 2', '3, 'sup': '2', 'forming a gas sensitive material using the SnO, InO, and oxide of Pd.'}30. The method of wherein the salt of Pd is PdCl.31. The method of wherein the mixture further comprises water.32. The method of wherein the heating the mixture comprises heating the mixture at about 100° C.33. The method of wherein the forming a gas sensitive material comprises:{'sub': 2', '2', '3, 'drying the SnO, InO, and oxide of Pd; and'}{'sub': 2', '2', '3, 'blending the SnO, InO, and oxide of Pd with additives to form a paste.'}34. The method of further comprising heating the paste to form a solid gas sensitive material.35. The method of wherein the additives comprise one or more of a surfactant and a blowing agent.36. The method of wherein the additives comprise ethyl cellulose in terpineol.37. The method of wherein the additives comprise one or both of stearic acid and ammonium carbonate.38. A gas sensitive material comprising SnOnanocrystals doped with InOand an oxide of a platinum group metal.39. The gas sensitive material of wherein said platinum group metal is Pd claim 38 , Pt claim 38 , Ru ...

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Номер записи: 48
19-12-2013 дата публикации

METHOD AND DEVICE FOR DETECTING SMOKE

Номер: US20130334417A1
Автор: Lewiner Jacques
Принадлежит: Finsecure

The smoke detector includes: a chamber () provided with apertures () allowing the smoke to enter a detection area (D), a light source (S) configured to emit towards the detection area (D), and a light receiver (R) configured so as to receive the light coming from the detection area (D). A concentration element () is provided so as to create a non-uniform electric field in the detection area (D), that, in the presence of smoke, can polarize smoke particles entering the detection area (D). The non-uniform electric field has a spatial gradient configured to exert a dielectrophoretic force on the smoke particles so as to drive the polarized smoke particles into a concentration zone (C) in the detection area (D) and to aggregate them together to form quasi “big particles”. 128-. (canceled)29. Smoke detector , that comprises:a chamber provided with apertures configured to allow the smoke to enter a detection area in the chamber;a light source configured to emit a beam of light rays towards the detection area;a light receiver sensitive to at least one portion of the wavelengths of the light rays emitted by the light source and configured to transform the reception of light into an electric reception signal;concentration means configured to create a non-uniform electromagnetic field in at least one portion of the detection area, that, in the presence of smoke, can polarize smoke particles entering the detection area, the non-uniform electromagnetic field having a spatial electromagnetic field gradient configured to exert a dielectrophoretic force on the smoke particles configured to drive the polarized smoke particles into a concentration area in the detection area.30. Smoke detector according to claim 29 , wherein the spatial electric field gradient is configured to exert a dielectrophoretic force on the smoke particles between 0.01 μm and 10 μm in size.31. Smoke detector according to claim 29 , wherein the concentration means comprise two electrodes configured to create a ...

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Номер записи: 49
19-12-2013 дата публикации

SMART TUNABLE DIODE LASE MODULE

Номер: US20130334418A1
Автор: Cowie Alan, Zhu Jie
Принадлежит:

An improved laser module for a tunable diode laser spectroscopy analyzer. The improvement is a programmable non-volatile memory device (such as an EEPROM device) attached to the module. In addition, an improved method for updating the laser parameters for a tunable diode laser analyzer when a new laser module is installed in the analyzer. The improvement is the step of reading the parameters from a programmable non-volatile memory device (such as an EEPROM device) attached to the module. 1. An improved laser module for a tunable diode laser spectroscopy analyzer , wherein the improvement comprises a programmable non-volatile memory device attached to the module.2. The improved module of wherein the programmable non-volatile memory device is an EEPROM device.3. The improved module of claim 1 , wherein the programmable non-volatile memory device is programmed with the laser module serial number claim 1 , the laser temperature control parameters claim 1 , the laser current drive parameters claim 1 , the laser power spectrum claim 1 , zero gas absorption claim 1 , span calibration coefficients and absorption spectrum for carbon monoxide claim 1 , methane and oxygen.4. The improved module of claim 2 , wherein the programmable non-volatile memory device is programmed with the laser module serial number claim 2 , the laser temperature control parameters claim 2 , the laser current drive parameters claim 2 , the laser power spectrum claim 2 , zero gas absorption claim 2 , span calibration coefficients and absorption spectrum for carbon monoxide claim 2 , methane and oxygen.3. An improved method for updating the laser module serial number claim 2 , the laser temperature control parameters claim 2 , the laser current drive parameters claim 2 , the laser power spectrum claim 2 , zero gas absorption claim 2 , span calibration coefficients and absorption spectrum for carbon monoxide claim 2 , methane and oxygen for a tunable diode laser analyzer when a new laser module is ...

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Номер записи: 50
02-01-2014 дата публикации

GAS ANALYSIS DEVICE

Номер: US20140002823A1
Автор: Hara Kenji, NAKANE Masahiro, NAKATANI Shigeru, RAHMAN Montajir
Принадлежит: HORIBA, LTD.

In order to be able to prevent analysis accuracy from being reduced by a backward flow of sample gas from dead volume in a cleaning mechanism into a cell at the time of analysis, a gas analysis device has an analysis part that analyzes the sample gas introduced into the cell, gas ports that are arranged toward predetermined regions of gas contact surfaces in the cell, and a piping mechanism that connects the gas ports to a predetermined purge gas source, and blows purge gas from the gas ports toward the predetermined regions at the time of purging. The gas analysis device also has a switching part that switches a connecting destination of the piping mechanism from the purge gas source to a predetermined suction part, and at the time of introducing or analyzing the sample gas, connects the gas ports to the suction source. 1. A gas analysis device comprising: a cell into which sample gas is introduced; an analysis part that analyzes the sample gas introduced into the cell; a gas port that is arranged toward a predetermined region of a gas contact surface in the cell; and a piping mechanism that connects the gas port to a predetermined purge gas source , and is configured to blow purge gas from the gas port toward the predetermined region at a time of purging that cleans the gas contact surface ,wherein the gas analysis device further comprising a switching part that switches a connecting destination of the piping mechanism from the purge gas source to a predetermined suction source, and configured to, at a time of introducing or analyzing the sample gas, connect the gas port to the suction source.2. The gas analysis device according to claim 1 , wherein the cell comprising:an introduction port for introducing the sample gas; and,a discharge port for discharging the sample gas,wherein both of the introduction port and the discharge port are opened at the time of the analysis.3. The gas analysis device according to claim 2 , whereina flow rate of gas sucked from the gas ...

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Номер записи: 51
02-01-2014 дата публикации

LEAD-FREE PIEZOELECTRIC CERAMIC FILMS AND A METHOD FOR MAKING THEREOF

Номер: US20140004000A1
Автор: Li Huidong, Shih Wan Y., Shih Wei-Heng
Принадлежит: DREXEL UNIVERSITY

This invention relates to a method of making lead-free piezoelectric ceramic films. Specifically, the invention is directed to a method for fabricating lead-free piezoelectric free standing films having enhanced piezoelectric properties. The films may be used for a number of applications including incorporation in microelectronic devices such as energy harvesting devices and sensor technologies. 120-. (canceled)21. A free standing film that is substantially lead-free , wherein the free standing film is produced from a lead-free piezoelectric material selected from the group consisting of solid solutions comprising one or more of (BiK)TiO , (BiNa)TiO , Ba(ZrTi)O , BaTiO , (BiK)TiO , (BiNa)TiO , Ba(ZrTi)O , Bi(ZnTi)O , (NaK)NbO , BiScO—PbTiOBaTiO—(BiK)TiO , (BiNa)TiO—(BiK)TiO , (BiNa)TiO—BaTiO , (BiNa)TiO—Ba(ZrTi)Oand (BiNa)TiO—BaTiO—(BiK)TiO.22. The film of claim 21 , wherein said film has a piezoelectric coefficient −dof about 200 pm/V to about 2000 pm/V.23. The film of claim 21 , wherein said piezoelectric coefficient −dis about 1500 pm/V to about 1800 pm/V.24. The film of claim 21 , wherein said piezoelectric coefficient −dis about 1600 pm/V to about 1700 pm/V.25. The film of claim 21 , wherein said film has a thickness of about 4 μm to about 100 μm.26. The film of claim 22 , wherein the free standing film exhibits asymmetrical non-180° domain switching.27. A microelectronic device comprising a piezoelectric layer produced from a film as claimed in .28. A microelectronic device comprising a piezoelectric layer produced from a film as claimed in .29. The film of claim 28 , wherein said microelectronic device is selected from the group consisting of: an energy harvesting device and a piezoelectric sensor.30. A piezoelectric sensor comprising:a non-piezoelectric layer;{'sub': 0.5', '0.5', '0.945', '0.055', '0.96', '0.04', '3', '0.5', '0.5', '3', '3', '0.5', '0.5', '3', '3', '0.5', '0.5', '3', '3', '0.5', '0.5', '3', '3', '0.5', '0.5', '3', '3', '0.5', '0.5', '3', '0. ...

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Номер записи: 52
02-01-2014 дата публикации

System and method for chemical and/or biological detection

Номер: US20140004618A1
Автор: Dheeraj Jain, Kelley Lowery, Poliang Chien, Ryan Hur
Принадлежит: Design West Technologies Inc

A method and system for detecting the presence of chemical and/or biological agents are disclosed. An additive, which may comprise a reactant and/or a catalyst selected for its capacity to react with, or to force a reaction involving a target chemical and/or biological agent, may be introduced into a sample of an ambient environment to be monitored. The additive may then react with the target agent, or, as a catalyst, may drive a reaction with the target agent, resulting in a reaction product that may be detected by one or more sensors or sensor arrays. The method and system may incorporate a plurality of sensor types in order to enhance the specificity of the method and system.

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Номер записи: 53
09-01-2014 дата публикации

GAS SENSOR, IN PARTICULAR FOR AUTOMOBILE APPLICATIONS

Номер: US20140007649A1
Автор: Eggers Torsten, NIEMANN Thomas
Принадлежит:

For a gas sensor, in particular for automobile applications, comprising a housing, which has a measurement chamber, wherein at least one sensor element having connecting wires is associated with the measurement chamber, the housing has a bottom part and a top part that covers the bottom part and each sensor element is arranged in the bottom part while suspended by the connecting wires thereof. At least one side wall of the bottom part favorably has an assembly opening, which is designed in such a way that a tool arm that retains the sensor element can be inserted into the bottom part from the outside through the assembly opening and can be brought into an assembly position in the area of the opening edge of the bottom part so that the connecting wires of the sensor element are in bondable contact with the associated connection surfaces. Thus especially easy assembly is possible. 1. A gas sensor , in particular for automobile applications , comprising a housing , which has a measurement chamber , which is assigned at least one sensor element having connecting wires , wherein the housing has a bottom part and a top part covering the bottom part , wherein each sensor element is arranged in the bottom part while suspended by its connecting wires , that the bottom part has an assembly opening in at least one of its side walls and that the top part is arranged on the bottom part in such a manner that the side wall of the top part closes the assembly opening in the side wall of the bottom part , wherein the assembly opening is configured in such a manner that a tool arm holding the sensor element can be introduced through the assembly opening from outside into the bottom part and can be brought into an assembly position in the region of the opening edge of the bottom part in such a manner that the connecting wires of the sensor element are in bondable contact with the associated solder connecting surfaces.2. The gas sensor according to claim 1 , the bottom part has a base ...

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Номер записи: 54
09-01-2014 дата публикации

THERMAL CONDUCTIVITY MEASURING DEVICE AND METHOD OF MEASURING THE THERMAL CONDUCTIVITY

Номер: US20140010258A1
Автор: Hyun Younghoon, Jang Moon Gyu, Park Young Sam, ZYUNG Taehyoung
Принадлежит: Electronics and Telecommunications Research Institute

The inventive concept relates to a thermal conductivity measuring device and a method of measuring the thermal conductivity. The thermal conductivity measuring device may include a first structure which is connected to one side end of a sample and receives heat from a heat source; a second structure connected to the other side end of the sample; a first stage connected to the first structure while supporting the first structure; a second stage connected to the second structure while supporting the second structure; a connection unit connected between the first stage and the second stage; and a measuring unit measuring temperatures of the first and second structures and the first and second stages. Since the thermal conductivity measuring of the inventive concept correct a temperature change of a stage due to heat transmission emitted from the stage considering a measurement environment, reliability of measurement may be improved. 1. A thermal conductivity measuring device comprising:a first structure which is connected to one side end of a sample and receives heat from a heat source;a second structure connected to the other side end of the sample;a first stage connected to the first structure while supporting the first structure;a second stage connected to the second structure while supporting the second structure;a connection unit connected between the first stage and the second stage; anda measuring unit measuring temperatures of the first and second structures and the first and second stages,wherein the measuring unit calculates thermal conductivity of the sample using the measured temperatures of the first and second structures and the first and second stages, and the amount of heat provided from the heat source.2. The thermal conductivity measuring device of claim 1 , wherein the first and second stages and the connection unit form a sealed space claim 1 ,wherein the sealed space is maintained in a vacuum state.3. The thermal conductivity measuring device of ...

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Номер записи: 55
09-01-2014 дата публикации

Device for detecting moisture for an arrangement for monitoring an access to a patient

Номер: US20140012197A1
Автор: Alexander Schroers, Andrea Kraemer, Andreas Wuepper, John Heppe
Принадлежит: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH

A device for detecting moisture for an arrangement for monitoring an access to a patient for a system by which, via a flexible line, a liquid is fed to a patient and/or a liquid is fed out from the patient, and in particular for monitoring the vascular access in extra-corporeal blood treatment and particularly for monitoring a central venous catheter for acute dialysis includes at least a portion which can be deformed into a sleeve and placed around the circumference of the flexible line or of a connecting system. The portion in sleeve form has fastening means for fixing it in place in the position in which it surrounds the flexible line or the connecting system. The portion in sleeve form allows the device to be fastened quickly and securely to a flexible line or a connecting system.

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Номер записи: 56
16-01-2014 дата публикации

METHOD FOR MEASURING THE THERMAL CONDUCTIVITY OF AN ANISOTROPIC THIN MATERIAL

Номер: US20140016664A1
Автор: Pauchet Joel, Rouillon Ludovic
Принадлежит:

A method for measuring the thermal conductivity along three directions of an anisotropic thin material includes: positioning on the surface of the material a plurality N of sensors able to measure the temperature of the material at N measuring points; generating a heat flux from a heat source positioned on a surface of the material; determining a mapping of the theoretical temperature of the material at the N measuring points of the N sensors along three directions by using a calculator, determining a mapping of the real temperature on the surface of the anisotropic material by measuring the temperature of the material at the N measuring points of N sensors; determining using the calculator the real thermal conductivity of the thin anisotropic material, along three directions, by a plurality of adjustments of the theoretical thermal conductivity by minimising the difference between the theoretical temperature and the real temperature for each of the N temperature measuring points. 1. Method for measuring the thermal conductivity along three directions of an anisotropic thin material comprising:positioning on a surface of the material a plurality N of sensors able to measure the temperature of said material at N measuring points;generating a heat flux from a heat source positioned on a surface of said material;determining a mapping of a theoretical temperature of the material at the N measuring points of the N sensors along three directions by using a calculator;{'b': '22', 'determining a mapping of a real temperature on the surface of said anisotropic material by measuring the temperature of the material at the N measuring points of the N sensors ();'}determining using said calculator the real thermal conductivity of said thin anisotropic material, along three directions, by a plurality K of adjustments of said theoretical thermal conductivity by minimising the difference between the theoretical temperature and the real temperature for each of the N temperature ...

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Номер записи: 57
23-01-2014 дата публикации

GAS SENSOR

Номер: US20140020446A1
Автор: NISHIO Hisaharu, OSAWA Norimasa, Yonezu Kunihiko
Принадлежит:

A gas sensor () in which individual ones of connection terminals () have, at a rear end portion, a first connection portion () connected to a corresponding connector terminal (). Individual ones of the connector terminals have, at an end portion on a side toward separator (), a second connection portion () connected to the first connection portion. One of the first and second connection portions assumes the form of an insertion piece (), and the other assumes the form of a female portion () into which the insertion piece is inserted. At least one of the insertion piece and the female portion has an elastic portion (). The insertion piece is fitted into the female portion, and the elastic portion thereby elastically bends, whereby the first and second connection portions are elastically connected. 1. A gas sensor comprising:a gas sensor element extending in a direction of an axis, having a detection portion provided at a forward end thereof for detecting a particular gas component in a gas to be measured, and having an electrode pad provided at a rear end portion thereof;a metallic shell surrounding a radial circumference of the gas sensor element and holding the gas sensor element therein;an electrically insulating separator having a rear end portion of the gas sensor element disposed within an insertion hole thereof;a connection terminal which is inserted into the insertion hole and whose forward portion extends in the direction of the axis and is electrically connected to the electrode pad;a trunk member having a body portion surrounding the separator, and a connector portion extending from the body portion in a radial direction intersecting the direction of the axis and allowing an external device to be inserted thereinto and removed therefrom; anda connector terminal held in the connector portion and extending through the connector portion in a radial direction intersecting the direction of the axis; whereinthe connection terminal has, at a rear end portion, a ...

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Номер записи: 58
23-01-2014 дата публикации

Combustible gas detecting device

Номер: US20140020448A1
Автор: Masaya Watanabe, Shoji Kitanoya, Yusuke Matsukura
Принадлежит: NGK Spark Plug Co Ltd

A flammable gas concentration detection apparatus ( 1 ) including an energization control unit ( 50 ) that switches the energization state of heating resistor ( 34 ) at regular time periods TW, and a gas concentration computation unit ( 7 ). The heating resistor has first and second set temperatures CH and CL. The voltage detected across the heating resistor at the first and second set temperatures corresponds to a high and low temperature voltage, respectively. The gas concentration computation unit computes the concentration of a flammable gas based on a first information group including an average high temperature voltage averaging the values of two temporally successive high temperature voltages, the low temperature voltage in a period of time between two high temperature voltages, and an environment temperature in the period of time in which the low temperature voltage is detected.

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Номер записи: 59
23-01-2014 дата публикации

Method and Apparatus for the Measurement of the Mass Fraction of Water in Oil-Water Mixtures

Номер: US20140020453A1
Автор: Estrada Herbert, Hastings Calvin R.
Принадлежит:

An apparatus for measuring the mass fractions of water and oil in a flowing mixture of oil and water through a pipe includes a sensor portion that measures sound velocity and temperature of the flowing oil water mixture at a first time and at a second time. The apparatus includes a temperature changer in thermal communication with the flowing fluid which changes the temperature of the flowing oil water mixture by a measurable amount between the first time and the second time. A method for measuring water mass fraction in a flowing mixture of oil and water through a pipe includes the steps of measuring sound velocity and temperature of the flowing oil water mixture at a first time with a sensor portion. There is the step of changing the temperature of the flowing oil water mixture by a measurable amount with a temperature changer in thermal communication with the flowing fluid. There is the step of measuring sound velocity and temperature of the flowing oil water mixture at a second time with the sensor portion. 1. An apparatus for measuring the mass fractions of water and oil in a flowing mixture of oil and water through a pipe comprising:a sensor portion that measures sound velocity and temperature of the flowing oil water mixture at a first time and at a second time; anda temperature changer in thermal communication with the flowing fluid which changes the temperature of the flowing oil water mixture by a measurable amount between the first time and the second time.2. The apparatus as described in wherein the sensor portion includes a first sensor portion that measures the sound velocity and temperature of the flowing oil water mixture upstream of the temperature changer claim 1 , and a second sensor portion that measures the sound velocity and temperature of the flowing mixture downstream of the temperature changer.3. The apparatus as described in wherein the temperature changer is either a heat exchanger that adds thermal energy to claim 2 , or a cooler that ...

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Номер записи: 60
06-02-2014 дата публикации

Sensor Apparatus For Detecting A Gas Concentration And A Particle Concentration Of An Exhaust Gas

Номер: US20140034495A1
Автор: Grass Philippe
Принадлежит:

A sensor apparatus includes a first electrode and a second electrode at a predefined distance from one another. The sensor apparatus includes a substrate arranged in a predefined first region of the sensor carrier such that the first electrode and the second electrode are substantially electrically decoupled from one another if the outer side of the sensor carrier is substantially free of particles. A third electrode is coupled to a solid electrolyte that is additionally coupled to the second electrode. A diffusion barrier is coupled to the third electrode in a predefined third region and the exhaust gas is applied to the third electrode only in the third region via the diffusion barrier. 19-. (canceled)101. A sensor apparatus () for detecting a concentration of at least one gas component and a particle concentration of an exhaust gas in an exhaust gas channel of an internal combustion engine , the sensor apparatus comprising:{'b': 5', '50, 'a sensor carrier () having a solid electrolyte ();'}{'b': 10', '40', '5, 'a first electrode () and a second electrode (), arranged at a prespecified distance from one another on an outer side of the sensor carrier (),'}{'b': 5', '10', '40', '5, 'a substrate having substantially no electrical conductivity at least below a prespecified operating limit temperature of the substrate, the substrate being arranged in a prespecified first region of the sensor carrier () such that the first electrode () and the second electrode () are substantially electrically decoupled from one another if the outer side of the sensor carrier () is substantially free of particles; and'}{'b': 20', '50', '50', '40, 'a third electrode () coupled to the solid electrolyte (), wherein the solid electrolyte () is additionally coupled to the second electrode (),'}{'b': 30', '20', '20', '30, 'wherein the sensor apparatus has a diffusion barrier () arranged so as to be coupled to the third electrode () in a prespecified third region, and the exhaust gas from the ...

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Номер записи: 61
13-02-2014 дата публикации

MEASURING HEAD FOR A DEVICE FOR MEASURING THE CONCENTRATION OF AT LEAST ONE GAS IN A GAS SAMPLE

Номер: US20140041438A1
Автор: DREYER Peter, Heise Tobias, Kelm Alfred, STARK Hartmut, Steinert Günter
Принадлежит: Dräger Medical GmbH

A measurement head is provided for a device for measuring the concentration of at least one gas, in particular oxygen. A gas sample a measurement element () is arranged in the region of an opening on a circuit board (). To convey gas a duct () is formed in each of two metal bodies, which surround the measurement element () and serve as magnetic poles. During operation of the measurement head the gas sample flows substantially perpendicularly, first through one of the metal bodies (), and then through the opening () on a side of the measurement element () facing the opening and emerges again through the other metal body (). 1. A measuring head for a device for measuring the concentration of at least one gas in a gas sample , the measuring head comprising:a measuring element with at least one measurement point for detecting a change in thermal conductivity of the gas sample;a plate carrying the measuring element on a first side of the plate;electric lines;a first metal body arranged above the measuring element anda second metal body arranged under the measuring element under a second side of the plate, wherein the first metal body and the second metal body form magnetic poles during the operation of the measuring head, wherein a duct is formed in each of the first metal body and the second metal body and an opening is formed in the plate for routing the gas, whereby the gas sample can flow through one of the metal bodies and through the opening on a side of the measuring element facing the opening and emerge again through the other metal body during the operation of the measuring head.2. A measuring head in accordance with claim 1 , wherein the measuring element partially covers the opening in the plate.3. A measuring head in accordance with claim 1 , wherein:the measuring element comprises a membrane on a support frame;the at least one measurement point is arranged on the membrane;the support frame has a cutout with a reduced height or an interruption at least on a ...

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Номер записи: 62
13-02-2014 дата публикации

Method and apparatus for monitoring deposition

Номер: US20140046629A1
Автор: Kaikai Wu, Linna Wang
Принадлежит: General Electric Co

The present invention concerns an apparatus for deposition monitoring in a water system comprising a deposition measurement system, a DC power supply connected to a conductive deposition monitoring surface and a counter electrode, the apparatus has a first treatment configuration and a second treatment configuration, wherein one of the treatment configurations removes biofilm from the conductive deposition monitoring surface, and the other treatment configuration removes inorganic scale deposition from the conductive deposition monitoring surface.

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Номер записи: 63
27-02-2014 дата публикации

SYSTEM AND APPARATUS FOR USING A WIRELESS SMART DEVICE TO PERFORM FIELD CALCULATIONS

Номер: US20140053586A1
Автор: Bark Gerald M., Menon Rajagopala, Poecher Arndt
Принадлежит: TSI INCORPORATED

There is disclosed a system and apparatus for connecting remote and environmental sensors and other operating systems to a portable computing and communications device. The portable device configured to receive and process a set of data and transmit a response or message to at least the user on the quality of the data received. The portable device adapted to reconfigure the remote sensors or operating systems to produce a new set of data. 1. A system for measuring at least one parameter in a fluid flow , the measuring system comprising:a portable probing device having an extended body portion with a sensor assembly disposed at one end of the probing device configured to measure at least one parameter, the probing member having means for transmitting parameter data therefrom, the sensor assembly configured to receive a replaceable pre-calibrated sensor element; anda handheld communications device having a screen display thereon adapted to receive a set of parameter data from the probing device, said communications device adapted to process the parameter data and generate a message when the parameter of the fluid flow exceeds a predefined range.2. The system of claim 1 , wherein the message is sent to a message destination selected from the group consisting of the screen display claim 1 , a remote printer claim 1 , a remote server claim 1 , and a remote controller adapted to receive the message.3. The system of claim 1 , the pre-calibrated sensor element is selected from the group consisting of a temperature sensor claim 1 , humidity sensor claim 1 , and pressure sensor.4. The system of claim 1 , wherein the pre-calibrated sensor element is selected from the group consisting of a particle counter claim 1 , a viable biological particle detector and a non-viable biological particle detector.5. The system of claim 1 , wherein the handheld device is communicate wirelessly with the probing device.6. A system for measuring and calibrating a controller used for controlling ...

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Номер записи: 64
27-02-2014 дата публикации

Device For Emitting And Guiding An Infrared Radiation

Номер: US20140054460A1
Автор: Gidon Serge
Принадлежит: Commissariat A L'Energie Atomique Et Aux Energies Alternatives

Device for emitting and guiding an infrared radiation comprising a waveguide () and means () for emitting an infrared radiation (R), characterized in that said means () for emitting an infrared radiation (R) are formed at the surface or inside the waveguide (), in such a way that the radiation emitted is transmitted to the waveguide () which transports it. 1. A device for emitting and for guiding infrared radiation comprising a waveguide and means for emitting infrared radiation , wherein said means for emitting infrared radiation are formed on the surface or inside of the waveguide , in such a manner that the infrared radiation emitted is transmitted to the waveguide which transports it.2. The device as claimed in claim 1 , wherein the means for emitting infrared radiation comprise means of emission of heat and means capable of emitting infrared radiation under the effect of the emitted heat.3. The device as claimed in claim 1 , wherein the means for emitting infrared radiation comprise a resistive track made from an electrically-conductive material claim 1 , which is designed to be connected to an electrical current supply source in order to emit heat and an emissive layer made of a material capable of emitting infrared radiation under the effect of heat claim 1 , said emissive layer being placed between the waveguide and the resistive track.4. The device as claimed in claim 1 , wherein the means for emitting infrared radiation are in direct contact with the waveguide.5. The device as claimed in claim 1 , wherein the waveguide is at least partially surrounded by a thermal insulator.6. The device as claimed in claim 1 , wherein the means for emitting infrared radiation comprise an interface layer in contact with the waveguide.7. The device as claimed in claim 1 , wherein the means for emitting infrared radiation extend over or within at least a part of the waveguide.8. The device as claimed in claim 7 , wherein this part is supported at its proximal end claim 7 , ...

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Номер записи: 65
27-02-2014 дата публикации

METHOD FOR DETERMINING THE THERMAL CONDUCTIVITY OF AN IMPREGNATED POROUS MEDIUM

Номер: US20140056326A1
Автор: Komrakova Aleksandra Evgenievna, Mustafina Darya Aleksandrovna, Skibin Alexander Petrovich
Принадлежит: SCHLUMBERGER TECHNOLOGY CORPORATION

This invention relates to methods for determination of thermophysical properties of porous media filled with fluid, gas, or other mineral medium, and can be used, in particular, in the oil and gas industry. When implementing the method, it is necessary to initially determine a composition of a saturated porous medium and thermal conductivity coefficients of its components. A three-dimensional image of a sample of the porous medium is obtained by X-ray scanning. A thermal conductivity coefficient of the medium is determined by solving thermal conductivity problems, based on decomposition of a computational domain followed by composition. 1. A method for determination of thermal conductivity of a saturated porous medium , comprising the following steps:determining a composition of the saturated porous medium and thermal conductivity coefficients of determined components,{'sub': x', 'y', 'z', 'X', 'y', 'z, 'performing an X-ray scanning of a sample of the saturated porous medium and obtaining a three-dimensional image of the sample which is a first single computational domain and consists of N voxels, with N=N·N·N, where N, N, Nare numbers of voxels along x, y, z axes, respectively,'}{'sub': x', 'y', 'z', 'x', 'y', 'z', 'x', 'x', 'y', 'y', 'z', 'z, 'combining the N voxels into n coarse cells, with n=n·n·n, where n, n, nare numbers of coarse cells along the x, y, z axes, respectively, with 2 Подробнее

Номер записи: 66
13-03-2014 дата публикации

SENSOR FOR HUMIDITY AND MANAGEMENT SYSTEM THEREFOR

Номер: US20140069170A1
Автор: Seo Se Yeol
Принадлежит:

The present invention relates to a sensor for humidity, etc. which has high precision, very small electrical power consumption and simplified composition, and a management system therefor. The sensor and the management system therefor according to the present invention are also economical. The sensor according to the present invention comprises two electrode pads and an absorption layer for absorbing moisture, etc. between them, and detects a capacitance variation and a resistance variation between the electrode pads, measuring humidity, etc. in real time. In the sensor, one or both of the electrode pads can be made by printing or coating a conductive material on a paper pad or a fabric pad in a mesh shape of fine lines. Or the electrode pads can be fabrics with fine thread of a mesh-type electric conductor coated by an absorptive material having an insulating property. 1. A humidity sensor for a diaper comprising:two electrode pads having water permeability, conductivity and flexibility, wherein each of the electrode pads is made by combining fine threads of a mesh-type electric conductor onto a paper or a fabric, or is made by mixing thread and fine thread of an electric conductor;an absorption layer for absorbing moisture, the absorption layer being disposed between the two electrode pads; anda sensing unit for detecting humidity through a resistance variation between the two electrode pads.2. The humidity sensor for a diaper as recited in claim 1 , wherein one or both of the electrode pads is made by printing or coating a conductive material on the fabric or paper in a mesh shape of fine lines.3. The humidity sensor for a diaper as recited in claim 1 , wherein one or both of the electrode pads are fabrics made of fine thread of a mesh-type electric conductor claim 1 , the fine thread of the mesh-type electric conductor being coated by an absorptive material having an insulating property.4. The humidity sensor for a diaper as recited in claim 1 , further ...

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Номер записи: 67
13-03-2014 дата публикации

PORTABLE ENVIRONMENTAL AUDIT TOOL

Номер: US20140069171A1
Автор: Purkayastha Indrajit
Принадлежит: Purkay Laboratories, Inc.

A method and instrument is provided that includes a flexible stick that is adjustable for different heights. The method and instrument includes one or more sensor modules coupled to the flexible stick. The method and instrument includes one or more control systems that establish different thresholds for the one or more sensor modules at different heights. The one or more control systems monitors a plurality of environmental parameters in a predetermined sequence and indicates whether at least one environmental parameter is below, within, or above the thresholds of a plurality of set-points through a display indicator. 1. A portable environmental measurement instrument comprising:a flexible stick that is adjustable for different heights;one or more sensor modules coupled to said flexible stick; andone or more control systems that establish different thresholds for said one or more sensor modules at different heights, said one or more control systems monitors a plurality of environmental parameters in a predetermined sequence and indicates whether at least one environmental parameter is below, within, or above said thresholds of a plurality of set-points through a display indicator.2. The portable environmental measurement instrument of claim 1 , wherein the one or more sensor modules or one or more control systems comprises a transmitter that signals a remote receiver through remote transmittal of said environmental parameter from said one or more sensor modules.3. The portable environmental measurement instrument of claim 1 , wherein said set-points are prescribed limits defined by an industry standard or custom defined by a user.4. The portable environmental measurement instrument of claim 1 , wherein said environmental parameters are stored into a removable memory device.5. The portable environmental measurement instrument of claim 3 , wherein the stored environmental parameters are time-stamped.6. The portable environmental measurement instrument of claim 1 , ...

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Номер записи: 68
20-03-2014 дата публикации

In SItu Membrane Monitoring

Номер: US20140076030A1
Автор: Chilcott Terry Calvin, COSTER Hans Gerard Leonard
Принадлежит:

A method for in situ monitoring of a membrane of a membrane separation system comprises measuring a complex impedance of the membrane at a plurality of frequencies to provide an indication of the electrical conduction and electrical polarization properties of the membrane. The membrane based separation system for removing or reducing the concentration of materials carried in a fluid including a separation membrane has a first pair of electrodes separated by the membrane and arranged for measurement of the complex impedance of the membrane at a plurality of frequencies to provide the indication of the membrane properties. There may also be a second pair of electrodes separated by the membrane for injecting the stimulus current such that the injecting and monitoring functions are separated. 141-. (canceled)42. A method of in situ monitoring of a membrane separation system wherein the membrane separation system includes a separation membrane , and a pair of electrodes separated by the separation membrane , the method comprising:using the membrane separation system to separate a feed solution into a permeate and a residue, where the permeate passes through the separation membrane and the residue remains on a feed side of the separation membrane;applying an electrical alternating current stimulus through the separation membrane at one or more frequencies by applying the electrical stimulus between the pair of electrodes separated by the separation membrane;measuring a response electrical potential between the pair of electrodes separated by the separation membrane;comparing the electrical stimulus and the response electrical potential to determine a complex electrical impedance of the separation membrane at the one or more frequencies;determining electrical conduction and electrical polarization properties of the separation membrane from the complex electrical impedance of the separation membrane at the one or more of frequencies; andmonitoring changes of the electrical ...

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Номер записи: 69
20-03-2014 дата публикации

Humidity Sensor and Sensor Element Therefor

Номер: US20140076048A1
Автор: Krzysztof A. Lewinski, Michael C. Palazzotto, Stefan H. Gryska
Принадлежит: 3M Innovative Properties Co

A humidity sensor element includes a dielectric substrate, a nonporous conductive electrode disposed on the dielectric substrate, a permeable conductive electrode having a thickness in a range of from 4 to 10 nanometers and permeable by water vapor, and a detection layer sandwiched between the nonporous conductive electrode and the permeable conductive electrode. The permeable conductive electrode is parallel to the nonporous electrode. Both conductive electrodes have respective conductive leads attached thereto. The detection layer includes a copolymer having monomeric units comprising wherein M represents H, or an alkali metal. A humidity sensor including the humidity sensor element is also disclosed.

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Номер записи: 70
01-01-2015 дата публикации

Inspection Apparatus for Article Storage Facility

Номер: US20150000372A1
Автор: Kawamura Shinsuke, Otsuka Hiroshi, Yoshimoto Tadahiro
Принадлежит:

An inspection apparatus used for an article storage facility includes an inactive gas supply portion provided with a supply nozzle provided in a placement support portion. A transport container having a supply port for an inactive gas is formed at a bottom portion thereof for accommodating substrates in a sealed state. The nozzle is joined to the supply port by a self weight of the transport container supported on the placement support portion so as to inject the inactive gas to an interior of the transport container. An inspection supply port is joined to the supply nozzle by a self weight of the inspection apparatus supported on the placement support portion, and is configured such that a gravity center position is supported on the placement support portion and coincides with a gravity center position of the transport container, the supply port inspects a state of supply of the inactive gas in the state of being supported on the placement support portion. 1. An inspection apparatus for an article storage facility , the article storage facility including:a plurality of storage sections each including a placement support portion on which is placed and supported a transport container having a supply port for an inactive gas formed at a bottom portion thereof for accommodating a number of substrates that is less than or equal to a predetermined number of substrates in a sealed state, the storage sections being capable of storing the transport containers in a state in which the transport containers are supported on the placement support portions; andan inactive gas supply portion including a supply nozzle that is a nozzle provided in the placement support portion, and that is joined to the supply port by a self weight of the transport container supported on the placement support portion so as to inject the inactive gas to an interior of the transport container,the inspection apparatus for the article storage facility being an apparatus for inspecting a state of supply ...

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Номер записи: 71
01-01-2015 дата публикации

THERMAL RESISTANCE MEASURING METHOD AND THERMAL RESISTANCE MEASURING DEVICE

Номер: US20150003492A1
Автор: HINATA Yuichiro, MIYANAGI Toshiyuki
Принадлежит:

A temperature of a semiconductor element is measured based on a temperature coefficient of a voltage between the first electrode and the second electrode when no heat is generated when causing a constant current of an extent such that the semiconductor element does not generate heat to be input wherein current is caused to flow from a third electrode to a second electrode in accordance with voltage applied between a first electrode and the second electrode. Also, a constant current such that the semiconductor element generates heat is input into the third electrode, with voltage applied between the first electrode and second electrode of the semiconductor element kept constant, and power is measured based on the current such that the semiconductor element generates heat and on voltage when heat is generated between the third electrode and second electrode when the semiconductor element generates heat. 1. A thermal resistance measuring method , comprising:measuring an exterior temperature of a semiconductor device housing a semiconductor element wherein current is caused to flow from a third electrode of the semiconductor element to a second electrode of the semiconductor element in accordance with a voltage applied between a first electrode of the semiconductor element and the second electrode;inputting a constant current such that the semiconductor element does not generate heat, measuring a second voltage between the first electrode and second electrode, which is controlled so that a first voltage between the third electrode and second electrode is constant, and calculating the element temperature of the semiconductor element based on the second voltage and on a temperature coefficient relating to the second voltage;causing a constant current such that the semiconductor element generates heat to be input between the third electrode and second electrode, with a third voltage applied between the first electrode and second electrode kept constant;calculating a power ...

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Номер записи: 72
07-01-2016 дата публикации

GAS MEASUREMENT DEVICE AND MEASUREMENT METHOD THEREOF

Номер: US20160003757A1
Автор: Biancolillo Pasquale, Bruno Giuseppe, Cicero Antonio, Franco Pasquale, Recchia Angelo
Принадлежит: STMICROELECTRONICS S.R.L.

A gas measurement device measures gas using a gas sensor including a sense resistance exposed to the gas and a reference resistance not exposed to the gas. The gas measurement device applies a first current value and a second current value to the sensor. A detector functions to detect a first resistance variation and a second resistance variation of the sense resistance exposed to the gas with respect to the reference resistance as a function of the first current value and the second current value, respectively. The resistance variation dependent on relative humidity is then determined as a function of the first and second resistance variations and a first constant. The resistance variation dependent on gas content is then determined as a function of the first and second resistance variations and a second (different) constant. 1. A gas measurement device for measuring gas using a gas sensor comprising at least one resistance exposed to at least one gas and at least one reference resistance not exposed to the gas , said gas measurement device comprising:a managing device configured to manage the gas sensor so that the gas sensor receives at least a first current value Il and a second current value Ih,a detector configured to detect a first resistance variation ΔR(Il) and a second resistance variation ΔR(Ih) of the resistance exposed to the gas with respect to the reference resistance as a function of the first current value Il and the second current value Ih respectively, anda calculation circuit configured to calculate: a resistance variation dependent on relative humidity and a resistance variation dependent on gas concentration as a function of first resistance variation ΔR(Il) and the second resistance variation ΔR(Ih).2. The gas measurement device according to claim 1 , wherein the calculation circuit is configured to:{'b': '1', 'calculate the resistance variation dependent on relative humidity as a function of a difference between the first ΔR(Il) resistance ...

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Номер записи: 73
04-01-2018 дата публикации

Micro multi-array sensor

Номер: US20180003661A1
Автор: Bum Mo Ahn, Seung Ho Park, Sung Hyun BYUN
Принадлежит: Point Engineering Co Ltd

A micro multi-array sensor includes a substrate, a sensor electrode formed on the substrate, and a heater electrode formed on the substrate. The sensor electrode includes a first sensor electrode formed on the substrate and a second sensor electrode formed on an opposite surface of the substrate from the first sensor electrode. The heater electrode is disposed more adjacent to the first sensor electrode than the second sensor electrode.

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Номер записи: 74
07-01-2021 дата публикации

GAS SENSOR

Номер: US20210003525A1
Автор: KAITA Yoshio, MATSUO Yutaka
Принадлежит:

A gas sensor includes: a first thermistor having a resistance value that changes according to a concentration of a first gas with a first sensitivity and changes according to a concentration of a second gas with a second sensitivity; a second thermistor connected in series to the first thermistor, the second thermistor having a resistance value that changes according to a concentration of the first gas with a third sensitivity that is lower than the first sensitivity and changes according to a concentration of the second gas with a fourth sensitivity that is different from the second sensitivity; and a correction resistor connected in parallel with the first or second thermistor. 1. A gas sensor comprising:a first thermistor having a resistance value that changes according to a concentration of a first gas with a first sensitivity and changes according to a concentration of a second gas with a second sensitivity;a second thermistor connected in series to the first thermistor, the second thermistor having a resistance value that changes according to a concentration of the first gas with a third sensitivity that is lower than the first sensitivity and changes according to a concentration of the second gas with a fourth sensitivity that is different from the second sensitivity; anda correction resistor connected in parallel with the first or second thermistor to cancel a change in potential at a connection point between the first and second thermistors according to the concentration of the second gas.2. The gas sensor as claimed in claim 1 ,the first thermistor is heated to a first temperature by a first heater, andthe second thermistor is heated to a second temperature different from the first temperature by a second heater.3. The gas sensor as claimed in claim 2 ,wherein the fourth sensitivity is higher than the second sensitivity, andthe correction resistor is connected parallel to the second thermistor.42112. The gas sensor as claimed in claim 3 , wherein claim 3 , ...

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Номер записи: 75
03-01-2019 дата публикации

SENSOR ELEMENT

Номер: US20190003997A1
Автор: NOGUCHI Makoto, Suzuki Satoshi
Принадлежит: Denso Corporation

An electrode for a sensor element 1 that detects a specific substance in a gas to be measured, wherein the electrode is embedded in an insulating substrate having a detection face to which the specific substance adheres, the electrode being embedded in such a manner that a part of the electrode is exposed at the detection face, the electrode comprises an alloy of Pt and at least one metal selected from the group consisting of Rh, Ru, Ir, Os, and Pd, and granular voids dispersed among the alloy, and the content of the metal in the alloy is 40 mass % or less, and the number of the granular voids per unit volume of the electrode for a sensor element is 3/100 μmto 50/100 μm. 18-. (canceled)9. A sensor element that detects a specific substance in a gas to be measured , comprising:an insulating substrate having a detection face to which the specific substance adheres; anda pair of detection electrodes with different polarities, a part of each detection electrode being exposed at the detection face in such a manner that the detection electrodes face each other, and a remaining part thereof being embedded in the insulating substrate, wherein{'sup': 3', '3, 'each detection electrode comprises an alloy of Pt and at least one metal selected from a group consisting of Rh, Ru, Ir, Os, and Pd, and granular voids dispersed among the alloy, the content of the metal in the alloy is 40 mass % or less, and the number of the granular voids per unit volume of the detection electrodes is 3/100 μmto 50/100 μm, and'}the pair of detection electrodes each comprises a plurality of electrodes, and the plurality of electrodes are laminated at predetermined intervals inside the insulating substrate so that the polarity differs alternately, and in a lamination direction of the detection electrodes, more granular voids are provided in both end parts of the detection electrodes than in a central part thereof10. The sensor element according to claim 9 , wherein the metal is Rh claim 9 , and the Rh ...

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Номер записи: 76
03-01-2019 дата публикации

BIMETAL DOPED-METAL OXIDE-BASED CHEMICAL SENSORS

Номер: US20190004020A1
Автор: Dobrokhotov Vladimir, Larin Alexander
Принадлежит:

The present invention generally relates to bimetal-doped, metal oxide-based sensors and platforms and integrated chemical sensors incorporating the same, methods of making the same, and methods of using the same. 1. A chemical sensor platform , comprising:{'sub': 2', '2, '(a) an oxidized silicon membrane, comprising a silicon (Si) layer and a silicon oxide (SiO) layer, wherein the SiOlayer is located on top of the silicon layer and, comprises: a plurality of separate sensor areas;'}{'sub': '2', '(b) at least one heating element in contact with the SiOlayer and located near at least one edge of each sensor area;'}{'sub': '2', '(c) a plurality of pairs of electrical leads, each in contact with the SiOlayer, wherein 1 pair of electrical leads is at least partly located on each of the separate sensor areas;'}(d) a plurality of metal oxide layers, wherein 1 metal oxide layer is located on each of the plurality of sensor areas and is in contact with at least a part of the pair of electrical leads located on the same area; and,(e) a plurality of bimetal layers, wherein 1 bimetal layer is located in each sensor area and is in contact with the metal oxide layer in that area, wherein the bimetal layer, comprises: Au and Pd or Au and Pt.2. The chemical sensor platform of claim 1 , wherein the bimetal layers claim 1 , comprise: Au and Pd.3. The chemical sensor platform of claim 1 , wherein the bimetal layers claim 1 , comprise: Au and Pt.4. The chemical sensor platform of claim 1 , wherein the membrane claim 1 , further comprises: a plurality of Si/SiOconnectors.5. The chemical sensor platform of claim 1 , wherein the membrane claim 1 , further comprises: 4 Si/SiOconnectors.6. The chemical sensor platform of claim 1 , wherein bimetal layer claim 1 , comprises: Au and Pd and the molar ratio of Au to Pd is from 10:1 to 1:1.7. The chemical sensor platform of claim 1 , wherein bimetal layer claim 1 , comprises: Au and Pd and the molar ratio of Au to Pd is about 9:1.8. The chemical ...

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Номер записи: 77
13-01-2022 дата публикации

Water Vapor Distillation Apparatus, Method and System

Номер: US20220011253A1
Автор: Beavis Russell H., Langenfeld Christopher C., LaRocque Ryan Keith, Schnellinger Andrew A.
Принадлежит:

A system for product water output. The system includes a controller, a first conductivity sensor in communication with the controller, a first product valve downstream from the first conductivity sensor and in communication with the controller, a second product valve downstream from the first product valve and in communication with the controller, a second conductivity sensor downstream from the second product valve and in communication with the controller, and a divert valve downstream from the first conductivity sensor and upstream from the first product valve and in communication with the controller. 1. A method for determining the quality of product water output comprising:providing a controller;providing a first conductivity sensor in communication with the controller;providing a first product valve downstream from the first conductivity sensor and in communication with the controller;providing a second product valve downstream from the first product valve and in communication with the controller;providing a second conductivity sensor downstream from the second product valve and in communication with the controller;providing a divert valve downstream from the first conductivity sensor and upstream from the first product valve and in communication with the controller;the controller comparing the conductivity from the first conductivity sensor and the second conductivity sensor; andif the conductivity from the first conductivity sensor differs more than a threshold amount from the conductivity of the second conductivity sensor, indicating a fault condition.2. The method of claim 1 , further comprising the first conductivity sensor determining that the conductivity of product water is not within a first acceptable range and opening the divert valve and maintaining the first product valve and second product valve in a closed position.3. The method of claim 1 , further comprising the first conductivity sensor determining that the conductivity of product water is ...

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Номер записи: 78
08-01-2015 дата публикации

Measuring Arrangement

Номер: US20150007636A1
Автор: Björn HAASE, Günter Jahl, Stefan Robl, Tilman Benkert
Принадлежит: Endress and Hauser Conducta Gesellschaft fuer Mess und Regeltechnik mbH and Co KG

A measuring arrangement, which includes: a sensor, wherein the sensor is embodied to produce a measurement signal correlated with a measured variable, a first interface, an evaluation circuit least one computer system and a memory associated with the computer system, as well as a third interface, especially a third interface embodied as a fieldbus interface, a first superordinated data processing system, with which the evaluation circuit is connected via the third interface, wherein in the memory associated with the computer system of the evaluation circuit a computer program executable by the computer system is stored, wherein the computer program serves for additional processing of the measurement signal as well as serving for transmission of the further processed measurement signal via the third interface to the first superordinated data processing system; and a second superordinated data processing system connected wirelessly, especially via a radio connection, with the evaluation circuit.

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Номер записи: 79
20-01-2022 дата публикации

GAS SENSOR AND METHOD FOR MANUFACTURING SAME

Номер: US20220018804A1
Автор: TANAKA Tetsuro
Принадлежит:

An oxygen sensor is provided in which an insulative coating using an exterior resin material made of insulative resin is applied to a self-heating oxygen sensor element made of a ceramic sintered body housed in a case, and in which waterproof cloths with air permeability are attached using resin adhesives so as to cover openings that connect to air holes on end parts of the case. This allows provision of a gas sensor for use both in air and in liquid having insulating property, waterproof property, and thermal safety. 1. A gas sensor , comprising:a gas sensor element housed in a case having air holes;an insulative exterior member sealing the case while having openings that communicate with the air holes;a filter member arranged so as to cover the entire openings; andpaired lead wires, which are connected to end part electrodes of the gas sensor element and lead outside the exterior member; whereina predetermined gas permeating through the filter member is detected by the gas sensor element.2. The gas sensor according to claim 1 , wherein the filter member is a permeable film that prevents a specified gas from permeating through.3. The gas sensor according to claim 1 , wherein the filter member is a permeable waterproof film.4. The gas sensor according to claim 1 , wherein the gas sensor element is a self-heating sensor element made of a ceramic sintered body.5. The gas sensor according to claim 1 , wherein the exterior member is a urethane resin material.6. The gas sensor according to claim 5 , wherein the filter member is attached using a urethane resin adhesive that is applied to circumferential edges of the openings.7. The gas sensor according to claim 1 , wherein the exterior member is formed so as to cover at least electrodes provided on the end parts of the case.8. The gas sensor according to claim 7 , further comprising a structure in which a first layer of the exterior member made of the urethane resin material claim 7 , and a second layer made of the ...

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Номер записи: 80
12-01-2017 дата публикации

Metal-insulator transition point biosensor

Номер: US20170010258A1
Автор: James S. Harris, Rahim ESFANDYARPOUR, Ronald W. Davis
Принадлежит: Leland Stanford Junior University

The invention relates to a novel biosensor, the metal-insulator transition (MIT) point biosensor, a non-expensive miniaturized device, having a small footprint and high sensitivity, which can measure molecular interactions or the presence of small amounts of molecules without the need for the molecules to be labeled. The sensor comprises a vanadium dioxide (V02) layer located between two metal measuring pads. The introduction of molecules of interest to the sensor surface results in changes in the oxide interface charge density that can be detected by a shift in the metal oxide transition point and differences in the amount of current passing through the oxide. The MIT biosensor is useful for the detection of charged molecules, including macromolecules, such as proteins or nucleic acids as well as other types of particles, such as cells, bacteria, or viruses.

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Номер записи: 81
14-01-2016 дата публикации

Light Extinction Tomography for Measurement of Ice Crystals and Other Small Particles

Номер: US20160011105A1
Автор: Bencic Timothy J., Fagan Amy F., Izen Steven H., Maniyedath Arjun K., Rohler David P.
Принадлежит:

Systems and methods for imaging and detection of small liquid and solid water particles in different spray conditions includes visible light laser diodes that are pulsed across the area of interest and optical detectors that measure the extinction of light intensity at different directions. The attenuated light projections across the field of view are reconstructed to yield an image of the particles that crossed the plane of light. A wind tunnel is a major tool used in understanding of ice formation and the performance of aircraft engine components. The measurement of the spray provides calibration and, to date, wind tunnel calibration has been time consuming and expensive. This system and method provide near real-time in-situ quasi-quantitative full-field ice/water content data and the corresponding reconstructed images for analysis. The support frame, source-detector configurations, acquisition, simulation, and reconstruction methods of the light emission tomography technology are also disclosed. 1. A light extinction tomography system as substantially described herein with reference to and as illustrated by the accompanying drawings. This application claims priority to U.S. Provisional Patent Application No. 62/017,143 filed Jun. 25, 2014, incorporated herein by reference.The work underlying this patent was developed under contract # NNC11CA25C with NASA/Glenn Research Center. Government rights to this invention are defined by FAR 52.227-11.There have been over 200 documented cases of jet engine power loss events during flight at high altitudes due to ingestion of ice particles. The events typically occur at altitudes above 22,000 feet and near deep convective systems, often in tropical regions. It is recognized in the industry that super cooled liquid water does not exist in large quantities at these high altitudes and therefore it is expected that the events are due to the ingestion of ice particles.Based on this recent interest in ice particle threat to ...

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Номер записи: 82
14-01-2016 дата публикации

APPARATUS AND METHOD FOR MEASURING OVERALL HEAT TRANSFER COEFFICIENT

Номер: US20160011130A1
Автор: Lee Hyun Woo, LEE Jong Won
Принадлежит:

An apparatus for measuring an overall heat transfer coefficient may include an external chamber provided using a heat insulation material and including an internal space, an internal chamber disposed in the external chamber and having an opening upper portion, a heat source supply to supply heat to an internal portion of the internal chamber, a cutoff portion disposed in the upper portion of the internal chamber to seal the internal chamber and prevent an outflow of heat emitted from the heat source supply, and a temperature measurement portion disposed in an internal portion and an external portion of the internal chamber to measure an internal temperature and an external temperature of the internal chamber, in which the cutoff portion may realize covering conditions indoors through a combination of a covering material and a thermal screen, and adjust the external temperature of the internal chamber. 1. An apparatus for measuring an overall heat transfer coefficient , the apparatus comprising:an external chamber provided using a heat insulation material and comprising an internal space;an internal chamber disposed in the external chamber and having an opening upper portion;a heat source supply to supply heat to an internal portion of the internal chamber;a cutoff portion disposed in the upper portion of the internal chamber to seal the internal chamber and prevent an outflow of heat emitted from the heat source supply; anda temperature measurement portion disposed in an internal portion and an external portion of the internal chamber to measure an internal temperature and an external temperature of the internal chamber,wherein the cutoff portion realizes covering conditions indoors through a combination of a covering material and a thermal screen, and adjusts the external temperature of the internal chamber.2. The apparatus of claim 1 , wherein a sky radiation realization portion is provided above the cutoff portion to realize a sky radiation claim 1 ,a pipe is ...

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Номер записи: 83
14-01-2016 дата публикации

THERMAL CONDUCTIVITY MEASURING DEVICE

Номер: US20160011131A1
Автор: Hyun Younghoon, Jang Moon Gyu, Park Young Sam, ZYUNG Taehyoung
Принадлежит: Electronics and Telecommunications Research Institute

The inventive concept relates to a thermal conductivity measuring device. The thermal conductivity measuring device may include a first structure which is connected to one side end of a sample and receives heat from a heat source; a second structure connected to the other side end of the sample; a first stage connected to the first structure while supporting the first structure; a second stage connected to the second structure while supporting the second structure; a connection unit connected between the first stage and the second stage; and a measuring unit measuring temperatures of the first and second structures and the first and second stages. Since the thermal conductivity measuring of the inventive concept correct a temperature change of a stage due to heat transmission emitted from the stage considering a measurement environment, reliability of measurement may be improved. 1. A thermal conductivity measuring device comprising:a first structure which is connected to one side end of a sample and receives heat from a first heat source;a second structure which is connected to the other side end of the sample and receives heat from a second heat source;a first stage connected to the first structure while supporting the first structure;a second stage connected to the second structure while supporting the second structure;a connection unit connected between the first stage and the second stage; anda measuring unit measuring temperatures of the first and second structures and the first and second stages,wherein the measuring unit calculates thermal conductivity of the sample using the measured temperatures of the first and second structures and the first and second stages, and the amount of heat provided from the first and second heat sources.2. The thermal conductivity measuring device of claim 1 , wherein the first heat source and the second heat source are selectively operated.3. The thermal conductivity measuring device of claim 2 , wherein the measuring unit ...

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Номер записи: 84
14-01-2016 дата публикации

THERMAL CONDUCTIVITY MEASURING DEVICE AND METHOD OF MEASURING THE THERMAL CONDUCTIVITY

Номер: US20160011132A1
Автор: Hyun Younghoon, Jang Moon Gyu, Park Young Sam, ZYUNG Taehyoung
Принадлежит: Electronics and Telecommunications Research Institute

The inventive concept relates to a thermal conductivity measuring device and a method of measuring the thermal conductivity. The thermal conductivity measuring device may include a first structure which is connected to one side end of a sample and receives heat from a heat source; a second structure connected to the other side end of the sample; a first stage connected to the first structure while supporting the first structure; a second stage connected to the second structure while supporting the second structure; a connection unit connected between the first stage and the second stage; and a measuring unit measuring temperatures of the first and second structures and the first and second stages. Since the thermal conductivity measuring of the inventive concept correct a temperature change of a stage due to heat transmission emitted from the stage considering a measurement environment, reliability of measurement may be improved. 1. A thermal conductivity measuring method comprising:providing heat to a first structure connected to one side end of a sample;measuring temperatures of the first structure and a second structure connected to the other side end of the sample;measuring temperatures of a first stage supporting the first structure and a second stage supporting the second structure; andcalculating thermal conductivity of the sample using the amount of heat provided to the first structure and the measured temperatures of the first structure, the second structure, the first stage and the second stage.2. The thermal conductivity measuring method of claim 1 , wherein providing heat to a first structure connected to one side end of a sample is to provide heat from an external heat source to a first structure connected to one side end of a sample in the form of an ultrasonic wave.3. The thermal conductivity measuring method of claim 1 , wherein calculating thermal conductivity of the sample comprises:calculating a temperature difference between the measured ...

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Номер записи: 85
03-02-2022 дата публикации

HYDROGEN BREATH ANALYZER AND BREATH TEST METHOD

Номер: US20220031190A1
Автор: Amoako Edward, Artan Nabi Sertac, Chiang Hao-Chun, Levon Kalle, Rigas Anastasia
Принадлежит:

The present invention provides an improved breath analyzer and breath test method to determine the presence of a gastrointestinal disorder in a human subject's digestive tract. 1. A handheld , portable breath analyzer , comprising:a main body; anda removable mouthpiece, wherein the removable mouthpiece removably attaches to the main body;wherein the main body includes a sensor, a processor, a power source and an electrical circuit;wherein the electrical circuit operably connects the power source to the sensor and connects the sensor to the processor;wherein the sensor comprises a conductive material and a hydrogen selective material in contact with the conductive material, wherein the hydrogen selective material has a resistivity that increases in response to increased concentration of hydrogen, wherein humidity immediately surrounding the sensor is controlled within a predetermined range of humidity and the hydrogen selective material has a resistivity that increases in response to the predetermined range of humidity, wherein the predetermined range of humidity is from 0.1% to 15%, wherein the hydrogen selective material comprises polyaniline, wherein the polyaniline is doped with a dopant that increases pH sensitivity of the polyaniline, wherein the dopant comprises dinonylnapthylsulfonic acid, and wherein the polyaniline has a resistivity that increases in response to increased concentration of hydrogen; andwherein the processor detects resistivity of the sensor and uses the resistivity to calculate a concentration of hydrogen.2. The breath analyzer of wherein the polyaniline has a pH sensitivity of more than 59 mV.34.-. (canceled)5. The breath analyzer of wherein the dopant consists essentially of dinonylnapthylsulfonic acid.6. The breath analyzer of wherein the conductive material comprises a plurality of electrodes.7. The breath analyzer of wherein the plurality of electrodes comprise interdigitated finger electrodes.8. The breath analyzer of wherein the ...

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Номер записи: 86
15-01-2015 дата публикации

RAMAN SPECTROSCOPIC ANALYZING APPARATUS

Номер: US20150015878A1
Автор: MORIYA Naoji
Принадлежит:

A Raman spectrometry apparatus comprises a condensing unit that condenses a light flux emitted from a light source to a prescribed position in a sample; a retroreflective unit that is disposed opposite to the condensing unit with reference to the sample; and a detecting unit that detects scattering light released from the prescribed position in the sample. The retroreflective unit again condenses the light flux having transmitted through the sample to become incident on the retroreflective unit to the prescribed position, irrespective of any change in disposition of the retroreflective unit. The retroreflective unit has at least one corner cube prism. 1. A Raman spectrometry apparatus comprising:a condensing unit that condenses alight flux emitted from a light source to a prescribed position in a sample;a retroreflective unit that is disposed opposite to the condensing unit with reference to the sample; anda detecting unit that detects scattering light released from the prescribed position in the sample.2. The Raman spectrometry apparatus according to claim 1 , whereinthe retroreflective unit again condenses the light flux having transmitted through the sample to become incident on the retroreflective unit to the prescribed position, irrespective of any change in disposition of the retroreflective unit.3. The Raman spectrometry apparatus according to claim 1 , whereinthe retroreflective unit has at least one corner cube prism.4. The Raman spectrometry apparatus according to claim 1 , whereinthe retroreflective unit has a cat's-eye system.5. The Raman spectrometry apparatus according to claim 1 , whereinthe retroreflective unit has an optical element structured by at least one bead being disposed in an in-plane direction that is perpendicular to an optical axis of the light flux becoming incident on the retroreflective unit.6. A gas component analyzing apparatus comprising the Raman spectrometry apparatus according to . The present invention relates to a component ...

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Номер записи: 87
15-01-2015 дата публикации

MOLECULAR SENSOR BASED ON VIRTUAL BURIED NANOWIRE

Номер: US20150017740A1
Автор: Rosenwaks Yossi, Shalev Gil
Принадлежит:

The present invention provides a method and a system based on a multi-gate field effect transistor for sensing molecules in a gas or liquid sample. The said FET transistor comprises dual gate lateral electrodes (and optionally a back gate electrode) located on the two sides of an active region, and a sensing surface on top of the said active region. Applying voltages to the lateral gate electrodes, creates a conductive channel in the active region, wherein the width and the lateral position of the said channel can be controlled. Enhanced sensing sensitivity is achieved by measuring the channels conductivity at a plurality of positions in the lateral direction. The use of an array of the said FTE for electronic nose is also disclosed. 1. A system for sensing at least one type of molecules in a gas or liquid sample , comprising: 1) a piece of semiconductor with a first region extending between a source region and a drain region, and left and right lateral regions extending along the first region on different sides;', '2) left and right lateral gate electrodes that respectively produce an electric field in the left and right lateral regions, creating a conducting channel in the first region when appropriate voltages are applied to them, a position of the conducting channel depending on the applied voltages;', '3) a sensing surface adjacent to the first region, that molecules of the at least one type adhere to when the sensing surface is exposed to the molecules, the conductivity of the conducting channel being measurably affected by a local concentration of the adhering molecules near the position of the conducting channel; and, 'a) at least one multi-gate field effect transistor, comprisingb) a controller adapted to successively apply different voltages to the lateral gate electrodes of the transistor, and move the conducting channel to a plurality of different positions, and at each position to measure its conductivity and determine a local concentration of the ...

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Номер записи: 88
19-01-2017 дата публикации

A CONDUCTIVITY SENSOR, AND A PUMP COMPRISING SUCH SENSOR

Номер: US20170016440A1
Автор: JOHANSSON Fredrik, STENBECK Johan
Принадлежит: TETRA LAVAL HOLDINGS & FINANCE S.A.

A conductivity sensor is provided. The sensor comprises at least one electrode being embedded in a cylindrical non-conductive body such that one end of each one of the at least one electrode is exposed to a sample volume, wherein the sensor further comprises a support body to which the cylindrical body is engagable with, which support body comprises means for attaching said support body to a frame structure in a fluid tight manner. 1. A conductivity sensor , comprising at least one electrode being embedded in a cylindrical non-conductive body such that one end of each one of the at least one electrode is exposed to a sample volume , wherein the sensor further comprisesa support body to which the cylindrical body is engagable with, which support body comprises means for attaching said support body to a frame structure in a fluid tight manner.2. The conductivity sensor according to claim 1 , wherein said non-conductive body is formed by a sintering process.3. The conductivity sensor according to claim 1 , wherein said at least one electrode is made of platinum.4. The conductivity sensor according to claim 1 , wherein said support body is formed by a cylindrical body in which the non-conductive body is insertable.5. The conductivity sensor according to claim 1 , wherein said sample volume is formed as a recess in said non-conductive body.6. A membrane assembly for a high-pressure pump claim 1 , comprising a frame structure being sealed on opposite sides by two separate membranes claim 1 , wherein said frame structure comprises a radial through hole for accommodating the non-conductive body as well as the support body of a conductivity sensor according to .7. The membrane assembly according to claim 6 , wherein said frame structure has a circular shape.8. A high pressure pump claim 6 , comprising a membrane assembly according to for transmitting pressure from a hydraulic side to a product side.9. The high pressure pump according to claim 8 , further comprising a control ...

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Номер записи: 89
19-01-2017 дата публикации

DEVICE FOR ANALYSIS OF MIXTURES OF AT LEAST TWO GAS

Номер: US20170016840A1
Автор: Bourlon Bertrand, PHAM HO Bao-An
Принадлежит: Commissariat A L'Energie Atomique Et Aux Energies Alternatives

Device for analysing a mixture of n gases, comprising a microfluidic channel () extending between a first end and a second end, at least n−1 suspended elements in the microfluidic channel (), said n−1 elements (S1, S2 . . . Sn−1) succeeding one another from the first end of the microfluidic channel () to the second end of the microfluidic channel (), heating means capable of heating a part at least of the gaseous mixture surrounding each suspended element (S1, S2 . . . Sn−1) to a given temperature different to those to which are heated the gaseous mixtures surrounding the other suspended elements (S1, S2 . . . Sn−1), means of measuring the temperature or the variation in temperature of the suspended elements (S1, S2 . . . Sn−1) and a control and measurement system (UC) connected to the heating means and to the measuring means. 1. Device for determining the concentrations of n gases of a gaseous mixture , comprising:a microfluidic channel extending between a first end and a second end,at least n−1 suspended elements in the microfluidic channel, the number of suspended elements being at least equal to 2, said n−1 elements succeeding each other from the first end of the microfluidic channel to the second end of the microfluidic channel,heating means capable of heating a zone of the gaseous mixture surrounding each suspended element, the heating means and the arrangement of the suspended elements being such that each zone of the gaseous mixture is heated to a given temperature different to those to which are heated the zones of gaseous mixture surrounding the other suspended elements,means of measuring the temperature or the variation in temperature of each suspended element, anda control and measurement system connected to the heating means and to the measuring means, the control system commands the heating means such that each zone of the gaseous mixture is heated to a given temperature different to those to which are heated the mixture zones and makes it possible to ...

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Номер записи: 90
18-01-2018 дата публикации

OPTICAL BIOFILM PROBE

Номер: US20180017490A1
Автор: Cader Tahir, Franz John, Norton William K.
Принадлежит:

Example implementations relate to an optical biofilm probe. For example, in an implementation, the optical biofilm probe may include a light source to project light towards a substrate disposed within a bypass and a detector to detect light from the substrate. Properties of light detected by the detector may be affected by biofilm formation on the substrate. The bypass may be connected in parallel to a conduit of a fluid system. 1. An apparatus comprising:a bypass that is connected in parallel to a conduit of a fluid system;a valve that isolates the bypass from fluid flow of the fluid system;a substrate disposed within the bypass and in contact with fluid of the fluid system; and a light source to project light into the bypass and at the substrate, and', 'a detector to detect light from the substrate,, 'an optical biofilm probe at the bypass to detect biofilm formation on the substrate, the optical biofilm probe includingwherein properties of light detected by the detector are a function of biofilm formation on the substrate.2. The apparatus of claim 1 , wherein the light source and the detector are disposed on different sides of the bypass claim 1 ,the substrate is between the light source and the detector for a transmittance measurement by the optical biofilm probe, andthe substrate is non-opaque.3. The apparatus of claim 1 , wherein the light source and the detector are disposed on a same side of the bypass relative to the substrate for a reflectance measurement by the optical biofilm probe.4. The apparatus of claim 1 , wherein the substrate comprises a material noninhibitive of biofilm formation.5. The apparatus of claim 1 , further comprising a total dissolved solids sensor disposed at the bypass to provide a fluid quality measurement to be analyzed in conjunction with biofilm formation detection from the optical biofilm probe.6. The apparatus of claim 1 , further comprising a wiper disposed within the bypass to clean the substrate.7. The apparatus of claim 1 , ...

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Номер записи: 91
18-01-2018 дата публикации

DETERMINATION OF THE THERMAL RESISTANCE OF A WALL

Номер: US20180017511A1
Автор: ALZETTO Florent, MEULEMANS Johann, Pandraud Guillaume
Принадлежит: SAINT-GOBAIN ISOVER

This method, which is aimed at determining a quantity representative of the thermal resistance of a dividing wall between a first environment and a second environment, comprises steps in which over at least two successive time periods Dcorresponding to distinct heating powers Pof the first environment, there is undertaken a campaign of measurements of the heat flow rate through the wall qand of the temperature in the first environment Tat closely spaced time intervals, as well as the determination of the temperature in the second environment Tat closely spaced time intervals; the value of the quantity representative of the thermal resistance of the wall is determined by bringing into convergence: on the one hand, a thermal model expressing the temporal variation of the temperature in one environment divided off from another environment by a wall, as a function of the heat flow rate through the wall, of the temperature in the other environment and of physical parameters of the wall, on the basis of which the quantity representative of the thermal resistance of the wall is calculable; and, on the other hand, the measured evolution T(t) of the temperature in the first environment as a function of time. 1: A method for determining a quantity representative of the thermal resistance (U , R , R) of a dividing wall between a first environment and a second environment , comprising steps in which:{'sub': k', 'k', 'k', '1k', '2k, 'over at least two successive time periods Dcorresponding to distinct heating powers Pof the first environment, respectively to distinct temperatures applied in the first environment, there is undertaken a campaign of measurements of the heat flow rate through the wall qand of the temperature in the first environment T, respectively of the power in the first environment, at closely spaced time intervals, as well as the determination of the temperature in the second environment Tat closely spaced time intervals;'}{'sub': 'T', 'claim-text': 'on the one ...

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Номер записи: 92
18-01-2018 дата публикации

MINIATURE GAS ANALYZER

Номер: US20180017513A1
Автор: Kam Shian Yeu, Le Neel Olivier, Loh Tien Choy, Shankar Ravi
Принадлежит:

A miniature gas analyzer capable of detecting VOC gases in ambient air as well as sensing relative humidity and ambient temperature can be used to monitor indoor air quality. The VOC gas sensor is thermally controlled and can be tuned to detect a certain gas by programming an adjacent heater. An insulating air pocket formed below the sensor helps to maintain the VOC gas sensor at a desired temperature. A local temperature sensor may be integrated with each gas sensor to provide feedback control. The heater, local temperature sensor, gas sensor(s), relative humidity sensor, and ambient temperature sensor are in the form of patternable thin films integrated on a single microchip, e.g., an ASIC. The device can be incorporated into computer workstations, smart phones, clothing, or other wearable accessories to function as a personal air quality monitor that is smaller, more accurate, and less expensive than existing air quality sensors. 1. A microelectronic gas analyzer , comprising:a humidity micro-sensor formed on an integrated circuit die, the humidity micro-sensor configured to monitor humidity of ambient air;a temperature micro-sensor formed on the integrated circuit die, the temperature micro-sensor configured to monitor a temperature of ambient air;a gas micro-sensor formed on the integrated circuit die, the gas micro-sensor including a semiconductor-metal-oxide (SMO) device configured to detect and monitor a particular gas species present in the ambient air;a microprocessor communicatively coupled to the humidity micro-sensor, the temperature micro-sensor, and the gas micro-sensor; andan electronic memory communicatively coupled to the microprocessor, the electronic memory configured to store instructions for execution by the microprocessor and to store data received from the micro-sensors.2. The microelectronic gas analyzer of wherein the integrated circuit die is formed on a glass substrate.3. The microelectronic gas analyzer of wherein the microprocessor and ...

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Номер записи: 93
17-04-2014 дата публикации

PROCESS ANALYTIC INSTRUMENT WITH ENCAPSULATED FLAME-QUENCHING CONNECTION

Номер: US20140102171A1
Автор: Bailey Edward J., JR. Vicente, Pratt Jason P., Ramirez
Принадлежит: Rosemount Analytical Inc.

A process analytic instrument and tube carrier are provided. The process analytic instrument includes an analytic module having a plurality of inlets and configured to analyze a process gas. The tube carrier is coupled to the analytic module and has a shell defining an interior therein. A plurality of tubes terminates in the tube carrier. At least one of the tubes has an integral flame-quenching pathway and the interior of the shell proximate the integral flame-quenching pathway is filled with a solid. 1. A process analytic instrument comprising:an analytic module configured to analyze a process gas, the analytic module having a plurality of inlet ports; anda tube carrier coupled to the analytic module, the tube carrier having a shell defining an interior therein;a plurality of tubes terminating in the tube carrier, wherein at least one of the plurality of tubes has an integral flame-quenching pathway; andwherein an interior of the shell proximate the integral flame-quenching pathway is filled with a solid.2. The process analytic instrument of claim 1 , wherein the process analytic instrument is a gas chromatograph.3. The process analytic instrument of claim 1 , wherein each of the plurality of tubes includes an integral flame-quenching pathway.4. The process analytic instrument of claim 1 , wherein the flame-quenching pathway is a crimped portion.5. The process analytic instrument of claim 1 , wherein a degree of crimping and length of the pathway is selected to provide flame quenching.6. The process analytic instrument of claim 1 , wherein at least one of the plurality of tubes is constructed from stainless steel.7. The process analytic instrument of and further comprising an elastomeric o-ring disposed about each of the plurality of tubes as each tube terminates within the tube carrier.8. The process analytic instrument of claim 1 , wherein the solid is epoxy.9. A tube carrier for coupling a plurality of tubes to an analytical module of an analytic instrument ...

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Номер записи: 94
17-04-2014 дата публикации

Integrated circuit comprising a thermal conductivity based gas sensor

Номер: US20140102172A1
Автор: Aurelie Humbert, Pascal Bancken, Roel Daamen
Принадлежит: NXP BV

An integrated circuit and a method of making the same. The integrated circuit includes a semiconductor substrate. The integrated circuit also includes a relative humidity sensor on the substrate. The relative humidity sensor includes a first sensor electrode, a second sensor electrode, and a humidity sensitive layer covering the first and second electrodes. The integrated circuit further includes a thermal conductivity based gas sensor on the substrate. The thermal conductivity based gas sensor has an electrically resistive sensor element located above the humidity sensitive layer.

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Номер записи: 95
17-04-2014 дата публикации

CURVED GASEOUS PARTICLE DETECTOR

Номер: US20140102173A1
Автор: AUNE Stephan, Cazaux Sandrine, Lerch Thierry
Принадлежит:

A curved gaseous particle detector includes a stack of two layers that are curved and maintained together by a frame formed of two spars defining a plane. The two spars are connected together by at least two curved bars outside of the plane and the frame being placed between the two layers of the stack. 1. A curved gaseous particle detector comprising a stack of two layers , wherein said two layers are curved and maintained together by a frame formed of two spars defining a plane , said two spars being connected together by at least two curved bars outside of said plane , the frame being placed between said two layers of the stack.2. The curved gaseous particle detector according to claim 1 , wherein the two layers are transparent to more than 99% of the particles to be detected.3. The curved gaseous particle detector according to claim 1 , wherein the two layers are formed of:a first support layer, anda second layer,said first layer comprising an outer face facing said second layer, said outer face supporting an active detection part.4. The curved gaseous particle detector according to claim 3 , wherein the active detection part comprises an amplification device.5. The curved gaseous particle detector according to claim 1 , wherein the frame is made of a material of which the Young's modulus is greater than 30 GPa.6. The curved gaseous particle detector according to claim 1 , wherein the frame is made of carbon.7. The curved gaseous particle detector according to claim 1 , wherein at least one of the spars is hollow so that gas can pass through it claim 1 , said at least one hollow spar further comprising at least one orifice emerging into the detection zone of the detector comprised between the two layers.8. The curved gaseous particle detector according to claim 1 , wherein the two curved bars are substantially parallel to each other and have a continuous curve.9. The curved gaseous particle detector according to claim 1 , wherein a joint is arranged on the ...

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Номер записи: 96
17-01-2019 дата публикации

Process for determining viability of test microorganisms of biological indicator and sterilization detection device for determining same

Номер: US20190017092A1
Автор: Michael A. Centanni, Phillip P. Franciskovich
Принадлежит: American Sterilizer Co

A process for determining the viability of a biological indicator includes exposing the biological indicator to a viability detection medium, the biological indicator including test microorganisms, the exposing the biological indicator to the viability detection medium producing a gaseous reaction product when one or more of the test microorganisms are viable. The presence or absence of the gaseous reaction product produced by the biological indicator combined with the viability detection medium is detected with a sensing device, the sensing device comprising a resistive sensor, wherein the presence of the gaseous reaction product indicates the presence of viable test microorganisms and the absence of the gaseous reaction product indicates the absence of viable test microorganisms. A sterilization detection device includes a container configured to contain the biological indicator, a viability detection medium, and the sensing device.

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Номер записи: 97
21-01-2021 дата публикации

SURFACE CHARACTERIZATION OF POROUS SOLIDS AND POWDER MATERIALS USING FLOWING GAS

Номер: US20210018422A1
Автор: BODYCOMB Jeffrey Taylor, PEJCINOVIC Miroslav
Принадлежит: HORIBA Instruments, Incorporated

A method for surface characterization of a porous solid or powder sample using flowing gas includes a controller that controls mass flow of a carrier gas and an adsorptive gas to form a mixture having a target concentration of the adsorptive gas over the sample, determining adsorptive gas concentration based on signals from a detector disposed downstream of the sample, automatically repeating the controlling and determining steps for a plurality of different target concentrations, and generating an isotherm for the sample based on the adsorptive gas concentration for the plurality of different target concentrations. The method may include immersing the sample in liquid nitrogen to cool the sample for all, or at least a portion of each of the different target concentrations. The target concentrations may vary from less than 5% to greater than 95%, and may vary in a stepwise manner. 1. A method for characterization of a porous solid or powder sample using flowing gas , the method comprising , by a controller:controlling mass flow of a carrier gas and an adsorptive gas to form a mixture having a target concentration of the adsorptive gas over the sample;determining adsorptive gas concentration based on signals from a detector disposed downstream of the sample;automatically repeating the controlling and determining steps for a plurality of different target concentrations; andgenerating an isotherm for the sample based on the adsorptive gas concentration for the plurality of different target concentrations.2. The method of further comprising:immersing the sample in liquid nitrogen to cool the sample for at least a portion of each of the different target concentrations.3. The method of wherein the sample is immersed in liquid nitrogen for all of the different target concentrations.4. The method of wherein the target concentrations vary from less than 5% to greater than 95%.5. The method of wherein the target concentrations vary in a stepwise manner.6. The method of ...

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Номер записи: 98
16-01-2020 дата публикации

Integrated thermal sensor comprising a photonic crystal waveguide

Номер: US20200018714A1
Автор: Carr William N.
Принадлежит:

An integrated thermal sensor comprising photonic crystal elements that enable photonic elements for photonic sourcing, spectral switching and filtering, sensing of an exposed analyte and detection. In embodiments, applications are disclosed wherein these photonic elements provide a spectrophotometer, a photonic channel switch and a standalone sensor for toxic gases and vapors. An application coupled with a mobile phone is disclosed. 1. An integrated thermal sensor comprising photonic elements and phononic elements , the photonic elements comprising:a photonic source (PS); 'a photonic crystal waveguide sensor (PCWS), and', 'a photonic crystal waveguide filter (PCWF) and/or'}a photonic crystal waveguide detector (PCWD); a substrate having a substantially planar surface;', 'a cavity formed from the substrate;', 'a micro-platform, the micro-platform disposed within the cavity, the micro-platform suspended by nanowires, the nanowires suspended from the substrate, and further wherein:', 'a first layer of one or more of the nanowires is comprised of a semiconductor having phononic scattering structure and/or phononic resonant structure, the phononic scattering structure and phononic resonant structure reducing thermal conductivity within the first layer;', 'the first layer provides electrical conductivity in the first layer;', 'the first layer of the one or more of the nanowires provides a decrease in the ratio of thermal conductivity to electrical conductivity for the one or more of the nanowires;', 'the phononic scattering structure comprises random or periodic array of scattering sites (SS), the SS separated by distances less than the mean-free-path of heat-conducting phonons;', 'the resonant phononic structure comprises phononic crystal (PnC), the PnC comprising a periodically-patterned array having a phononic bandgap, the phononic bandgap impeding the movement of heat transporting phonons with a range of frequencies;', 'the integrated thermal sensor is operational ...

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Номер записи: 99
16-01-2020 дата публикации

GAS DETECTION METHOD, GAS DETECTION SYSTEM, AND GAS DESORPTION METHOD

Номер: US20200018720A1
Автор: AIKI Yasuhiro, MOCHIZUKI Fumihiko, SANO Takahiro, Takaku Koji
Принадлежит: FUJIFILM Corporation

A gas detection method using a gas detection element obtained by laminating a fixed support, a first electrode (), a dielectric sensor (), a second electrode (), and a gas adsorption film (), in this order, the method including: a step of applying a first signal resonantly driving the dielectric sensor () between electrodes of the first electrode () and the second electrode (), and detecting gas adsorbed on the gas adsorption film based on a change of a resonant frequency of the dielectric sensor; and a step of heating the dielectric sensor () by applying a second signal between the electrodes after the detection of gas and desorbing gas adsorbed in the gas adsorption film; a gas detection system capable of performing the method; and a gas desorption method appropriate for applying this gas detection method. 1. A gas detection method using a gas detection element obtained by laminating a fixed support , a first electrode , a dielectric sensor , a second electrode , and a gas adsorption film , in this order , the method comprising:a step of applying a first signal resonantly driving the dielectric sensor between electrodes of the first electrode and the second electrode, and detecting gas adsorbed on the gas adsorption film based on a change of a resonant frequency of the dielectric sensor; anda step of heating the dielectric sensor by applying a second signal between the electrodes after the detection of gas to desorb gas adsorbed in the gas adsorption film.2. The gas detection method according to claim 1 ,wherein the first signal and the second signal are alternating voltage.3. The gas detection method according to claim 2 ,wherein a frequency of the second signal is higher than a frequency of the first signal.4. The gas detection method according to claim 2 ,wherein a voltage of the second signal is higher than a voltage of the first signal.5. The gas detection method according to claim 1 ,wherein the dielectric sensor is formed of a ceramic dielectric material.6. ...

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Номер записи: 100