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10-06-2016 дата публикации

Виброконтактное измерительное устройство

Номер: RU0000162311U1
Автор: Дмитрий Владимирович Ярошик, Максим Дмитриевич Хорошевский, Марк Григорьевич Кристаль, Павел Сергеевич Иванков, Роберт Николаевич Кулагин
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ)

Виброконтактное измерительное устройство, содержащее корпус, основание, виброгенератор, возбудитель колебаний, измерительный стержень, жестко закрепленный на якоре виброгенератора, который связан с корпусом посредством упругого элемента и отсчетное устройство, отличающееся тем, что виброгенератор выполнен в виде закрепленного в основании постоянного кольцевого магнита, внутри которого расположена с возможностью перемещения обмотка якоря с закрепленным на нем диэлектрическим штоком, жестко связанным с установленным перпендикулярно его оси измерительным стержнем, выполненным токопроводящим и соединенным с входом возбудителя колебаний, выполненным в виде счетного триггера, выходы которого соединены с входами вычитающего операционного усилителя, который через потенциометр, инвертирующий интегратор и усилитель мощности соединен с обмоткой якоря виброгенератора, причем общий провод счетного триггера соединен с измеряемой деталью, а его инверсный выход подключен к отсчетному устройству, выполненному в виде цифрового частотомера. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 162 311 U1 (51) МПК G01B 7/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2015150412/28, 24.11.2015 (24) Дата начала отсчета срока действия патента: 24.11.2015 (45) Опубликовано: 10.06.2016 Бюл. № 16 1 6 2 3 1 1 R U (57) Формула полезной модели Виброконтактное измерительное устройство, содержащее корпус, основание, виброгенератор, возбудитель колебаний, измерительный стержень, жестко закрепленный на якоре виброгенератора, который связан с корпусом посредством упругого элемента и отсчетное устройство, отличающееся тем, что виброгенератор выполнен в виде закрепленного в основании постоянного кольцевого магнита, внутри которого расположена с возможностью перемещения обмотка якоря с закрепленным на нем диэлектрическим штоком, жестко связанным с установленным перпендикулярно его оси измерительным стержнем, выполненным ...

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Номер записи: 1
30-05-2018 дата публикации

Устройство для определения размеров клиновой пригоночной подкладки между плоскими прямоугольными поверхностями

Номер: RU0000180013U1
Автор: Александр Анатольевич Захаров, Дмитрий Геннадьевич Большаков, Константин Николаевич Куликов
Принадлежит: Акционерное общество "Научно-исследовательское проектно-технологическое бюро "Онега"

Полезная модель относится к измерительным устройствам для измерения расстояния или зазора между разнесенными предметами и может быть использована для определения размеров клиновых пригоночных подкладок между плоскими прямоугольными поверхностями в различных областях промышленности, где требуется использование клиновых подкладок в качестве замыкающих звеньев размерной цепи. Устройство содержит индуктивные преобразователи перемещения, смонтированные таким образом, что их оси измерения параллельны. Три индуктивных преобразователя перемещения смонтированы на раме, по крайней мере два края которой образуют между собой прямой угол, так, что составляют вершины прямоугольного треугольника, катеты которого параллельны ближайшим к ним краям рамы, образующим между собой прямой угол. Рама имеет две полочки, предназначенные для зацепления с базовой деталью, полочки расположены по краям рамы, ближайшим к катетам воображаемого прямоугольного треугольника, вершинами которого являются индуктивные преобразователи перемещения, рама также снабжена рукоятью. Технический результат: возможность существенно упростить процесс выполнения измерений размеров клиновой пригоночной подкладки между плоскими прямоугольными поверхностями базовой и исследуемой деталей и за счет этого снизить его трудоемкость. 4 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 180 013 U1 (51) МПК G01B 7/15 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01B 7/15 (2006.01) (21)(22) Заявка: 2018100909, 10.01.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 10.01.2018 (45) Опубликовано: 30.05.2018 Бюл. № 16 1 8 0 0 1 3 R U (56) Список документов, цитированных в отчете о поиске: SU 1640525 A1, 07.04.1991. SU 1783285 A1, 23.12.1992. SU 1193442 A1, 23.11.1985. US 20130127449 A1, 23.05.2013. (54) УСТРОЙСТВО ДЛЯ ОПРЕДЕЛЕНИЯ РАЗМЕРОВ КЛИНОВОЙ ПРИГОНОЧНОЙ ПОДКЛАДКИ МЕЖДУ ПЛОСКИМИ ПРЯМОУГОЛЬНЫМИ ПОВЕРХНОСТЯМИ ...

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Номер записи: 2
26-07-2018 дата публикации

Виброконтактное измерительное устройство

Номер: RU0000181793U1
Автор: Дмитрий Сергеевич Матвеенко, Максим Дмитриевич Хорошевский, Марк Григорьевич Кристаль, Николай Владимирович Полежаев, Роберт Николаевич Кулагин
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ)

Полезная модель относится к метрологии и может быть использована для измерения внутренних и наружных диаметров цилиндрических деталей. Виброконтактный измеритель, содержащий корпус, основание, виброгенератор, возбудитель колебаний, измерительный стержень, жестко закрепленный на якоре виброгенератора, который связан с корпусом посредством упругого элемента, и отсчетное устройство. На измерительном стержне закреплены два тензорезистора, соединенные в мостовую схему, выход которой соединен со входом возбудителя колебаний, выполненного в виде усилителя мощности, положительный выход которого соединен со входом компаратора прямого хода, выход которого через логический элемент ИЛИ соединен с неинвертирующим входом триггера прямого хода и через логический элемент ИЛИ с инвертирующим входом триггера обратного хода, а отрицательный выход усилителя мощности соединен со входом компаратора обратного хода, выход которого соединен с неинвертирующим входом триггера обратного хода и через логический элемент ИЛИ с инвертирующим входом триггера прямого хода. Выход триггера прямого хода соединен с началом обмотки якоря, а выход триггера обратного хода соединен с концом обмотки якоря и отсчетным устройством. Технический результат - повышение точности измерения диаметров цилиндрических деталей. 4 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 181 793 U1 (51) МПК G01B 7/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01B 7/12 (2018.05) (21)(22) Заявка: 2018116726, 04.05.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 26.07.2018 (45) Опубликовано: 26.07.2018 Бюл. № 21 Адрес для переписки: 400005, г. Волгоград, пр. Ленина, 28, ВолгГТУ, отдел интеллектуальной собственности (73) Патентообладатель(и): Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) (RU) (56) Список документов, цитированных в отчете о ...

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Номер записи: 3
11-12-2020 дата публикации

Датчик деформации

Номер: RU0000201365U1
Автор: Алексей Николаевич Моспанов, Игорь Александрович Таратын, Юрий Михайлович Кернасовский
Принадлежит: Открытое акционерное общество "МИНСКИЙ НИИ РАДИОМАТЕРИАЛОВ"

Полезная модель относится к измерительной технике, а именно к тензометрическим устройствам для измерения деформаций деталей, на которых можно разместить тензорезисторы.Задачей настоящей полезной модели является уменьшение размеров и веса датчика, расширение диапазона температурной компенсации датчика от -40°С до +70°С, обеспечение работы датчика в составе сети датчиков, снижение трудоемкости изготовления датчика.Поставленная задача достигается тем, что датчик деформации, содержащий корпус, закрепленный на основании датчика, выполненного в виде пластины, причем корпус датчика выполнен съемным и основание выполнено в форме плоской пластины, средняя часть которой имеет дугообразную форму и выступы для фиксации корпуса, на плоских краях которой выполнены отверстия для крепления датчика, а к дугообразной поверхности основания прикреплен тензорезистивный мост. 5 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 201 365 U1 (51) МПК G01B 7/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01B 7/16 (2020.05) (21)(22) Заявка: 2020110725, 12.03.2020 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (30) Конвенционный приоритет: 30.09.2019 BY u 20190251 (45) Опубликовано: 11.12.2020 Бюл. № 35 U 1 2 0 1 3 6 5 R U (54) Датчик деформации (57) Реферат: Полезная модель относится к измерительной технике, а именно к тензометрическим устройствам для измерения деформаций деталей, на которых можно разместить тензорезисторы. Задачей настоящей полезной модели является уменьшение размеров и веса датчика, расширение диапазона температурной компенсации датчика от -40°С до +70°С, обеспечение работы датчика в составе сети датчиков, снижение трудоемкости изготовления датчика. Поставленная задача достигается тем, что Стр.: 1 U 1 Адрес для переписки: 220024, Респ. Беларусь, г. Минск, Открытое акционерное общество "МИНСКИЙ НИИ РАДИОМАТЕРИАЛОВ", Научнотехническое управление, начальнику НТУ Самойлюку Тимофею ...

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Номер записи: 4
05-03-2021 дата публикации

Устройство для исследования напряженно-деформированного состояния оболочки

Номер: RU0000202773U1
Автор: Алексей Витальевич Солодовников, Андрей Сергеевич Глинский, Антон Владимирович Дьяченко, Артём Александрович Холощак, Владимир Анатольевич Егоров, Владислав Владимирович Журавель, Дмитрий Викторович Чернов, Иван Михайлович Васильев, Михаил Николаевич Ларин, Николай Николаевич Готовцев
Принадлежит: ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ КАЗЕННОЕ ВОЕННОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ Военная академия Ракетных войск стратегического назначения имени Петра Великого МИНИСТЕРСТВА ОБОРОНЫ РОССИЙСКОЙ ФЕДЕРАЦИИ

Полезная модель относится к измерительной технике, в частности к средствам измерения деформаций оболочки при испытаниях на прочность и может быть использована, например, в ракетостроении, а также в учебном процессе ВУЗов.Задачей полезной модели является расширение наглядных возможностей по определению окружных и осевых относительных деформаций в точках наружной поверхности оболочки, нагруженной осевыми силами и изгибающим моментом.Оболочку 1 нагружают растягивающими осевыми силами поворотным рычагом 10, расположенным в нижней части оболочки 1, величину силы задают по показаниям тензорезистора 13, наклеенного на тензостакан 11. Проводят регистрацию измерительной аппаратурой показаний заданного массива датчиков 7 и 8 оболочки 1. Вращая винтовую пару 5, дополнительно нагружают оболочку 1 изгибающим моментом за фланец крышки 6 относительно стойки 2, контролируя величину момента по динамометру 4.Изменяя величину осевой растягивающей силы и величину изгибающего момента, получаем наглядную картину восприятия действующих нагрузок гладкой оболочкой 1 и влияние изгибающего момента растянутых и сжатых стенок оболочки 1 на величину относительных деформаций. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 202 773 U1 (51) МПК G01B 7/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01B 7/16 (2020.08) (21)(22) Заявка: 2020128514, 26.08.2020 (24) Дата начала отсчета срока действия патента: Дата регистрации: 05.03.2021 (45) Опубликовано: 05.03.2021 Бюл. № 7 2 0 2 7 7 3 R U (73) Патентообладатель(и): ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ КАЗЕННОЕ ВОЕННОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ Военная академия Ракетных войск стратегического назначения имени Петра Великого МИНИСТЕРСТВА ОБОРОНЫ РОССИЙСКОЙ ФЕДЕРАЦИИ (RU) (56) Список документов, цитированных в отчете о поиске: RU 114775 U1, 10.04.2012. RU 189044 U1, 07.05.2019. RU 176686 U1, 25.01.2018. CN 106017300 A, 12.10.2016. (54) УСТРОЙСТВО ДЛЯ ИССЛЕДОВАНИЯ НАПРЯЖЕННО- ...

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Номер записи: 5
13-04-2021 дата публикации

Устройство формирования выходного сигнала дифференциального измерительного преобразователя

Номер: RU0000203601U1
Автор: Глеб Сергеевич Васильев, Дмитрий Игоревич Суржик, Олег Рудольфович Кузичкин
Принадлежит: Федеральное государственное автономное образовательное учреждение высшего образования "Белгородский государственный национальный исследовательский университет" (НИУ "БелГУ")

Полезная модель относится к области электрических измерений и может быть использована для измерения электрических и неэлектрических величин с помощью дифференциальных, мостовых, измерительных преобразователей, питаемых переменным током. Устройство формирования выходного сигнала дифференциального измерительного преобразователя, питаемого переменным током, содержащего дифференциальный измерительный преобразователь 1, дифференциальный усилитель 9, переменный резистор 8, подключенный к входу дифференциального усилителя 9, фазовращатель 5, вход которого подключен к источнику переменного тока 4, два фазовых детектора 6, 7, входы первого фазового детектора 6 соединены с выходами ветвей 2, 3 измерительного преобразователя 1, а выход подключен ко второму входу дифференциального усилителя 9, входы второго фазового детектора 7 подключены к источнику переменного тока 4 и к выходу фазовращателя 5, а выход подключен к переменному резистору 8. Дополнительно введен третий фазовый детектор 12, входы которого подключены к выходам двух сумматоров 10, 11, причем входы первого сумматора 10 подключены к выходам ветвей 2, 3 измерительного преобразователя 1, а входы второго сумматора 11 подключены к источнику переменного тока 4 и к выходу фазовращателя 5. Устройство позволяет проводить текущий оперативный контроль за работоспособностью дифференциального измерительного преобразователя, с одновременным проведением измерений, что повышает надежность измерений с помощью дифференциальных измерительных преобразователей, питаемых переменным током. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 203 601 U1 (51) МПК G01B 7/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01B 7/14 (2021.02) (21)(22) Заявка: 2020139030, 27.11.2020 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 27.11.2020 (45) Опубликовано: 13.04.2021 Бюл. № 11 2 0 3 6 0 1 R U (56) Список документов, цитированных в ...

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Номер записи: 6
19-01-2012 дата публикации

Stress sensor and its manufacturing method

Номер: US20120011938A1
Автор: Hubert Grange
Принадлежит: Commissariat a lEnergie Atomique et aux Energies Alternatives CEA

A device for measuring deformation including: a) at least one strain gauge ( 3 ), producing a signal following a deformation, where the said strain gauge is positioned on a face of a flexible support ( 32 ) favouring elongation of the strain gauge ( 3 ), and where the face opposite the strain gauge of the flexible support, which is intended to be brought into contact with, or glued to, a test body the deformation of which it is desired to measure, b) at least one first substrate, including at least signal processing means and/or signal transmission means, c) securing means ( 4, 5, 6 ) to assemble the strain gauge and the first substrate mechanically, where these means include a layer of material having elastic properties, called the elastic layer, positioned between the gauge and the first substrate, and where this elastic layer prevents the deformation of the gauge from being transmitted, or allows it to be transmitted as little as possible, to the first substrate ( 2, 20 ).

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Номер записи: 7
15-03-2012 дата публикации

Sensor apparatus and robot apparatus

Номер: US20120065902A1
Автор: Yohji Nakajima
Принадлежит: Canon Inc

To well remove a noise component due to vibration of a flexible member from an original detection signal output from a detecting unit and suppress a phase delay of a detection signal obtained by filtering. For this purpose, the present invention provides a detecting unit including a flexible member deforming according to a state of an object to be measured and a sensor detecting an amount of deformation of the flexible member and outputting an original detection signal indicating a detection result. A filtering unit outputs a detection signal obtained by filtering the original detection signal using a filter coefficient. A calculating device calculates a vibration frequency of the flexible member contained in the original detection signal. A changing unit changes a filter coefficient of the filtering unit to cause the filtering unit to function as a filter for attenuating the vibration frequency calculated by the calculating device.

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Номер записи: 8
14-06-2012 дата публикации

Strain gauge, and system for spatially locating such gauges

Номер: US20120147384A1
Автор: Catherine Bosquet, Nicolas Swiergiel, Sebastien Didierjean
Принадлежит: EUROPEAN AERONAUTIC DEFENCE AND SPACE COMPANY EADS FRANCE

A strain gauge includes a substrate ( 2 ) for mounting an element ( 3 ) to be reversibly lengthened by a force applied while displaying a variation in the resistance thereof, the element ( 3 ) lengthening itself along an axis for measurement by the gauge. The gauge includes at least one contrast target ( 5, 6 ) capable of reflecting an incident light beam, the at least one contrast target ( 5, 6 ) being placed on the gauge in a predetermined position that makes it possible to predetermine the center of the axis ( 4 ), for measurement by the strain gauge ( 1 ), by detecting the position of the at least one contrast target ( 5, 6 ).

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Номер записи: 9
04-10-2012 дата публикации

Strain gage and manufacturing method thereof

Номер: US20120247220A1
Автор: Dohaku Inamori
Принадлежит: Minebea Co Ltd

A strain gage includes a strain sensitive element; and a temperature compensation element, wherein the strain sensitive element and temperature compensation element are monolithically formed. A method of manufacturing the strain gage includes: exposing and developing a strain sensitive element pattern and the temperature compensation element pattern; and etching the strain sensitive element pattern and the temperature compensation element pattern.

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Номер записи: 10
11-10-2012 дата публикации

Air gap measuring apparatus

Номер: US20120259558A1
Автор: Kenichi Ito, Yasuaki Hashimoto
Принадлежит: Toshiba Mitsubishi Electric Industrial Systems Corp

Disclosed is an air gap measuring apparatus, for measuring width of an air gap formed between a rotator and a stator. An insertion section has a first flat plate section and a second flat plate section. Gap adjusting means drives the second flat plate section such that the second flat plate section moves away from the first flat plate section, until the first flat plate section and the second flat plate section abuts on the rotator and the stator. An operating section extends to outside of the insertion section, and operates the gap adjusting means. An elastic body has an end that follows the first flat plate section, and other end that follows the second flat plate section. A strain gage outputs electrical signals corresponding to the strain of the elastic body, the strain being formed due to the movement of the second flat plate section.

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Номер записи: 11
29-11-2012 дата публикации

Inspection device for measuring pipe size

Номер: US20120300224A1
Автор: Darcy Warren, Jeff Lewis, Ron Bartel, Steve Bartel
Принадлежит: Liqui Force Sewer Services Inc

A disclosed measurement head includes a sensor body attached to a camera by a resilient member. The sensor body includes a sensor that measures linear distance and is actuated by arms pivoting outward from the sensor body into contact with an interior surface of pipe for measurement. Each of the arms includes a catch engageable to a latch sleeve to hold each of the arms in a compact folded position for insertion into a pipe. The latch sleeve is movable to release the catch and the arms to provide for measurement of the interior profile of the pipe. Another measurement head includes guide wires attached to an end of each of the arms. The guide wires provide for movement of the arms to provide for insertion of the measurement head into and through a pipe.

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Номер записи: 12
21-03-2013 дата публикации

METHOD AND DEVICE FOR DETERMINING A CURRENT ANGULAR POSITION OF A ROTATABLE MAGNETIC COMPONENT IN AN ELECTRIC DRIVE

Номер: US20130069638A1
Автор: Vollmer Ulrich
Принадлежит: ROBERT BOSCH GMBH

The invention relates to a method for determining the actual angle position of a rotatable magnetic component in an electric drive () having an odd number of pole pairs. An actual angle measurement value (Φ) of the rotatable component is measured using an angle sensor () which only measures the actual angle measurement value (Φ) within a predefined reduced angular area, and an associated device () for determining an actual angle position of a rotatable magnetic component in an electric drive (). According to the invention, the actual angle measurement value (Φ) measured exclusively for the reduced angular area is converted using the direction and the sign of the magnetic field of the rotatable magnetic component in a clear angular position in non-reduced angular area, the direction and sign of the magnetic field of the rotatable magnetic element () being determined by applying first test impulses (U, U, U) to the electric drive () and by evaluating the resulting second test impulses (I, I, I, I, I) which are produced in the electric drive () in reaction with the applied first test impulses (U, U, U). 1. A method for determining a current angular position of a rotatable magnetic component in an electric drive which has an uneven number of pole pairs , the method comprising:measuring a current angle measured value of the rotatable component with an angle sensor system which unambiguously measures the current angle measured value within a predefined limited angle range, andconverting the current angle measured value which is unambiguously measured in the limited angle range into an unambiguous current angular position in an unlimited angle range using the direction and sign of the magnetic field of the rotatable magnetic component,wherein the direction and sign of the magnetic field of the rotatable magnetic component are determined by applying first test pulses to the electric drive and by evaluating resulting second test pulses which are produced in the electric ...

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Номер записи: 13
21-03-2013 дата публикации

MAGNETIC-POLE POSITION DETECTION APPARATUS FOR SYNCHRONOUS MACHINES

Номер: US20130073252A1
Автор: Hatanaka Keita, Kitanaka Hidetoshi, Kono Masaki, Yamasaki Hisanori
Принадлежит: Mitsubishi Electric Corporation

An object is to provide a magnetic-pole position detection apparatus for synchronous machines that allows a desired accuracy of magnetic-pole position detection regardless of variation in DC voltage of a DC voltage source. Calculation means () changes a pulse width (tp) and a pulse-quiescent width (tn) in accordance with a DC voltage detection value (Vdc), using a pulse width determination section (), such that a desired accuracy of magnetic-pole position detection can be obtained regardless of variation in DC voltage of a DC voltage source (). The calculation means () also performs control such that a sampling timing is fixed at the end point of the pulse width (tp) of voltage vectors regardless of the DC voltage detection value (Vdc). 1. A magnetic-pole position detection apparatus for synchronous machines , comprising:circuit means for converting a DC voltage of a DC voltage source to voltage vectors based on a voltage vector instruction, and applying the voltage vectors to a synchronous machine having windings for n phases (n is a natural number larger than or equal to three);current detection means for detecting an electric current flowing in each of the windings of the synchronous machine; andcalculation means for calculating and outputting 2n voltage vectors to the circuit means as the voltage vector instruction, and for acquiring a current detection value from the current detection means at a predetermined sampling timing based on the voltage vector instruction, the 2n voltage vectors being determined depending on the DC voltage of the DC voltage source, having equal amplitudes, having phases shifted by equal amounts in one cycle (360 degrees), and having equal predetermined pulse widths, whereinwhen the voltage vectors based on the voltage vector instruction are applied to the synchronous machine, the calculation means further calculates n added current values by adding up current detection values acquired at the sampling timing as a result of application ...

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Номер записи: 14
28-03-2013 дата публикации

Induction-based reference point locator

Номер: US20130076344A1
Автор: Mark Turner
Принадлежит: Labor Saving Systems Ltd

According to one aspect of the present disclosure, an induction-based reference point locator is provided. The locator includes transmitter locatable at a position on a first side of a structure, the transmitter configured to generate an alternating magnetic field at a desired frequency; and a receiver locatable on a second side of the structure opposite the first side, the receiver configured to detect the magnetic field and provide a directional indication to the position of the transmitter relative to the second side of the structure.

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Номер записи: 15
04-04-2013 дата публикации

Detector

Номер: US20130082692A1
Автор: Howard Mark Anthony, Kreit Darran
Принадлежит:

An inductive detector operable to measure displacement along a path comprises: 1. An inductive detector operable to measure displacement along a path comprising:a first inductive arrangement;a second inductive arrangement; said second inductive arrangement being spaced from said first inductive arrangement and extending along at least part of the measurement path;at least one of said inductive arrangements comprises a winding which extends along at least part of the measurement path; andsaid winding comprising at least four loops in electrical series;wherein adjacent loops have opposite magnetic polarity; and the pitch distance of said winding varies at least once along the measurement path.2. An inductive detector according to claim 1 , wherein said pitch distance increases along the measurement path.3. An inductive detector according to claim 1 , wherein said pitch distance decreases along the measurement path.4. An inductive detector according to claim 1 , wherein said pitch distance varies incrementally along the measurement path.5. An inductive detector according to claim 1 , wherein the measurement path is circular and the pitch distance incrementally decreases along a succession of winding portions along the measurement path from a portion of maximum pitch distance to a portion of minimum pitch distance; the maximum pitch distance portion and the minimum pitch distance portion being adjacent to one another.6. An inductive detector according to claim 1 , wherein at least one of said inductive arrangements is laminar.7. An inductive detector according to claim 1 , wherein said winding is laminar.8. An inductive detector according to claim 1 , comprising a first winding and a second winding; said second winding being shifted along the measurement path relative to said first winding.9. An inductive detector according to claim 8 , wherein said second winding comprises at least four loops in electrical series wherein adjacent loops have opposite magnetic polarity ...

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Номер записи: 16
11-04-2013 дата публикации

ENCODER APPARATUS USING LIQUID TO SUPPRESS DETECTION FAILURE

Номер: US20130087696A1
Автор: MAKINOUCHI Susumu
Принадлежит: NIKON CORPORATION

An encoder apparatus comprises a first scale member with a scale region on which a scale is arranged; a detector that detects light from the scale region; and a retaining member with a retaining surface that is arranged so as to face a surface of the first scale member including the scale region via a predetermined gap, and that retains a liquid at least between the retaining surface and the first scale member. 1. An encoder apparatus comprising:a first scale member with a scale region including a scale and a region of lyophilic property arranged at outer circumferential edges of the scale region;a detector that detects light from the scale region; anda retaining member with a retaining surface that faces the scale region via a gap and retains a liquid between the retaining surface and the scale region, wherein the first scale member moves relative to the detector in a state with the scale region being in contact with the liquid.2. The encoder apparatus according to claim 1 , whereinthe detector detects the light via the liquid.3. The encoder apparatus according to claim 1 , whereina liquid supply port that supplies the liquid between the scale region and the retaining surface.4. An encoder apparatus comprising:a first scale member with a scale region including a scale and an external region arranged external side of the scale region;a detector that detects light from the scale region; anda retaining member with a retaining surface that faces the scale region via a gap and retains a liquid between the retaining surface and the scale region provided lyophilic property,wherein the first scale member moves relative to the detector in a state with the scale region being in contact with the liquid.5. The encoder apparatus according to claim 4 , whereinthe detector detects the light via the liquid.6. The encoder apparatus according to claim 1 , whereina liquid supply port that supplies the liquid between the scale region andthe retaining surface.7. An encoder apparatus ...

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Номер записи: 17
11-04-2013 дата публикации

Contact Displacement Sensor And Method For Contactless Distance Measurement

Номер: US20130088217A1
Автор: Grommer Werner, Grosse Kersten
Принадлежит:

A noncontact distance measuring sensor and a method for noncontact distance measurement is provided. The distance measuring sensor has a coil arrangement including at least two measuring coils oriented along a common axis. An electrically and/or magnetically conducting measurement object is in electromagnetic interaction with the coil arrangement. The distance measuring sensor further has an evaluation circuit for evaluating and ascertaining a position of the measurement object. In addition to the measuring coils, the noncontact distance measuring sensor includes an additional coil which is arranged along the common axis, is coupled to the evaluation circuit, and at least partly overlaps at least one of the two measuring coils. 1. A noncontact distance measuring sensor comprising:a coil arrangement including at least two measuring coils oriented along a common axis;an electrically and/or magnetically conducting measurement object which is in an electromagnetic interaction with the coil arrangement;an evaluation circuit for evaluating and ascertaining a position of the measurement object, the coil arrangement including a voltage tap which is coupled to the evaluation circuit and at which a signal can be detected that indicates a position of the measurement object, and the evaluation circuit being designed to convert the signal detected at the voltage tap to an output quantity that indicates the position of the measurement object in relation to an initial position of the measurement object; andan additional coil which is arranged on the common axis, is coupled to the evaluation circuit, and at least partly overlaps at least one of the two measuring coils.2. The distance measuring sensor according to claim 1 , wherein in relation to the initial position of the measurement object claim 1 , the coil arrangement is structured symmetrically as viewed along the common axis claim 1 , and that the additional coil claim 1 , likewise viewed along the common axis claim 1 , is ...

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Номер записи: 18
18-04-2013 дата публикации

Sensor apparatus

Номер: US20130093413A1
Автор: Masafumi ITONAGA, Norihiro Ida
Принадлежит: Panasonic Corp

A sensor apparatus for detecting a position of an axially movable camshaft is provided. The sensor apparatus includes a coil block including a detection coil wound along an axial direction of the camshaft to define a bore into which the camshaft is inserted, and a control unit electrically connected to the detection coil and designed to output a signal based on a change in inductance of the detection coil.

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Номер записи: 19
18-04-2013 дата публикации

AXIAL DISPLACEMENT AND ROTATIONAL SPEED MONITORING

Номер: US20130094966A1
Автор: Bellis Mark J.E., Garner Stephen G., Holt Jonathan E.
Принадлежит: ROLLS-ROYCE PLC

An apparatus, for example for a pitch change mechanism, includes a cylinder having a magnetic portion defining an annular array of features extending parallel to the longitudinal axis of the cylinder, the cylinder rotating in use and able to translate longitudinally. There is a sensing arrangement including a stationary magnetised core and two coils connected in series and wound around the core. In use, the cylinder rotates and current is induced in the coils. Monitoring equipment is arranged to calculate rotational speed of the cylinder from the frequency of the current and to calculate longitudinal position from the relative amplitude of the current in each coil. Also a method. 1. Apparatus comprisinga cylinder having a magnetic portion defining an annular array of features extending parallel to the longitudinal axis of the cylinder, the cylinder rotating in use and able to translate longitudinally; anda sensing arrangement comprising a stationary magnetised core arranged parallel to the features; and two coils connected in series via a common terminal and wound around the core, the common terminal of the coils and the other terminal of each coil connected to monitoring equipment;such that in use the cylinder rotates and current is induced in the coils by the cyclic variation of magnetic flux in the core; the monitoring equipment is arranged to calculate rotational speed of the cylinder from the frequency of the current and to calculate longitudinal position of the cylinder from the relative amplitude of the current in each coil.2. Apparatus as claimed in wherein the apparatus comprises a pitch change monitoring apparatus.3. Apparatus as claimed in wherein the coils are arranged to be rotationally de-coupled from the cylinder and longitudinally coupled to the cylinder.4. Apparatus as claimed in wherein the coils are longitudinally coupled and rotationally de-coupled by bearings.5. Apparatus as claimed in wherein the features comprise grooves or ridges.6. A gas ...

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Номер записи: 20
25-04-2013 дата публикации

METHOD FOR DETERMINING A DISTANCE AND AN INTEGRATED MAGNETIC FIELD MEASURING DEVICE

Номер: US20130099777A1
Автор: HEBERLE Klaus
Принадлежит: Micronas GmbH

An integrated magnetic field measuring device is provided that includes a semiconductor body arranged on a metal substrate and having a first surface, and a plurality of metal surfaces formed on the surface, a first magnetic field sensor, formed in the semiconductor body and having a first sensor signal, and second magnetic field sensor having a second sensor signal, and a current-carrying first conductor. A third magnetic field sensor with a third sensor signal is formed in the semiconductor body. The first magnetic field sensor, the second magnetic field sensor, and the third magnetic field sensor have a substantially identical orientation to Earth's magnetic field and a different distance to the first conductor and the magnetic field of the first conductor simultaneously penetrates the first magnetic field sensor, the second magnetic field sensor, and the third magnetic field sensor. 1. A method for determining a distance of a current-carrying first conductor , the method comprising:providing an integrated magnetic field measuring device having a semiconductor body with a first magnetic field sensor formed in the semiconductor body, having a second magnetic field sensor; and having a third magnetic field sensor;providing a first sensor signal from the first magnetic field sensor;providing a second sensor signal form the second magnetic field sensor;providing a third sensor signal from the third magnetic field sensor;penetrating substantially simultaneously the first magnetic field sensor, the second magnetic field sensor, and the third magnetic field sensor by the magnetic field of the first conductor;determining a first difference from the first sensor signal and the second sensor signal;determining a second difference from the third and the second sensor signal; andforming a quotient from the first difference and the second difference to determine a distance of the magnetic field from the current-carrying conductor.2. The method according to claim 1 , wherein a ...

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Номер записи: 21
02-05-2013 дата публикации

Device for detecting the position of an actuator

Номер: US20130106405A1
Автор: Gernot Schmid, Manfred Bammer
Принадлежит: AIT AUSTRIAN INSTITUTE OF TECHNOLOGY GMBH, Seibersdorf Labor Gmbh

A device for detecting the position of an actuator has a conductor arrangement, which detects magnetic fluxes flowing therethrough and converts same into a voltage signal that is dependent on the position, at which the magnetic flux penetrates the conductor arrangement. The induced voltage signal is proportional to the position of the magnetic flux, measured along a predetermined axis starting from a predetermined starting point. A position-determining unit is connected to the conductor arrangement for determining the position of a magnetic flux generated by the actuator and passing though the conductor arrangement. A transmission unit, by way of which the determined position is transmitted to a receiver, is arranged downstream of the position-determining unit.

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Номер записи: 22
02-05-2013 дата публикации

PINCH DETECTION DEVICE AT OPENING/CLOSING SECTION, VEHICLE HAVING THE DEVICE, AND METHOD FOR DETECTING PINCH AT THE OPENING/CLOSING SECTION

Номер: US20130106435A1
Автор: Eguchi Tsuyoshi, Karube Toshikazu, Mori Setsuro, Yamazaki Takanori
Принадлежит:

The present invention provides a pinch detection device at an opening/closing section having a very simple structure that can surely detect pinch without a faulty operation also in a vehicle whose power supply voltage greatly fluctuates, a vehicle having this device, and a method for detecting pinch at an opening/closing section. 1. A pinch detection device at an opening/closing section , comprising:a sensor for detecting displacement of the opening/closing section of a vehicle, the opening/closing section being opened/closed by a motor;a time counter for counting a relative time adjusted according to a fluctuation in a power supply voltage; anda pinch detector for detecting pinch of a foreign matter at the opening/closing section based on a change in the relative speed obtained from the change in the displacement on a basis of the relative time.2. The pinch detection device at the opening/closing section according to claim 1 , wherein the time counter is a voltage controlled oscillator for transmitting a reference pulse with a frequency reduced according to a reduction in the power supply voltage claim 1 , and the pinch detector detects pinch when an inverse number of a counted value of the reference pulse counted while a sensor is detecting a minute displacement of the opening/closing section as the relative speed of the opening/closing section changes into a threshold or more.3. The pinch detection device at the opening/closing section according to claim 1 , wherein the pinch detector has a conditioning circuit for measuring a level of an electric current flowing in the motor so as to finely adjust the relative time according to a level of the electric current.4. The pinch detection device at the opening/closing section according to claim 1 , wherein the sensor that is a pulse generator for generating one-phase pulse based on the rotation of the motor has a closed position detecting switch to detect a closed state and its vicinity of the opening/closing section ...

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Номер записи: 23
09-05-2013 дата публикации

Method and apparatus for measuring linear displacment

Номер: US20130113468A1
Автор: Jeffrey L. Moore, Jimmy W. Anders, Li Gao, Michael T. Pelletier
Принадлежит: Halliburton Energy Services Inc

For some embodiments, a system includes a moveable structure, moveable in at least a linear direction relative to a supporting structure, a magnetic field sensor assembly including a magnetic field sensor, and a magnet, wherein one of the magnet and the magnetic field sensor is coupled to the moveable structure, and wherein the other of the magnet and the magnetic field sensor assembly is coupled to the supporting structure, and wherein the magnetic field sensor assembly is configured to determine the relative position of the magnet to the magnetic field sensor.

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Номер записи: 24
09-05-2013 дата публикации

DOUBLE PISTON ROD

Номер: US20130113501A1
Автор: Gehring Ralf, Trummer Guenther
Принадлежит: Astyx GmbH

A distance measuring apparatus for detecting the position of a reflection body in a line structure is provided that includes a sensor device, which has at least one antenna for feeding a transmission signal as an electromagnetic wave into the line structure and for receiving the electromagnetic wave reflected on the reflection body. The sensor device also includes evaluation electronics which are configured to determine the position of the reflection body from the phase difference between the transmitted and the received wave. 1. A distance measuring apparatus for detecting the position of a reflection body in a line structure , comprising a sensor device , which has at least one antenna for feeding a transmission signal as an electromagnetic wave into the line structure and for receiving the electromagnetic wave reflected on the reflection body , and including evaluation electronics which are configured to determine the position of the reflection body from the phase difference between the transmitted and the received wave.2. The distance measuring apparatus according to claim 1 , wherein the line structure is in the form of a cylinder.3. The distance measuring apparatus according to claim 2 , wherein the reflection body is the face side of a piston rod of the cylinder.4. The distance measuring apparatus according to claim 3 , wherein a short circuit for the electromagnetic wave in the form of two or more metallic discs with dielectric filler between the discs is provided onto the face surface of the piston rod.5. The distance measuring apparatus according to claim 3 , further comprising two or more piston rods passing into one another being detected simultaneously and independently of one another.6. The distance measuring apparatus according to claim 5 , further comprising one of a capacitive means or a coupling slot for injecting the electromagnetic wave in order to detect an innermost piston rod.7. The distance measuring apparatus according to claim 6 , wherein ...

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Номер записи: 25
09-05-2013 дата публикации

METHOD AND DEVICE FOR MEASURING THE LOCATION OF A PARTICLE BEAM PRESENT IN PACKETS IN A LINEAR ACCELERATOR

Номер: US20130113503A1
Автор: Ruf Marcel, Schmidt Lorenz-Peter, Setzer Stefan
Принадлежит:

The invention relates to a method and device for measuring the location of a particle beam () present in packets in a linear accelerator comprising a hollow chamber structure () in which an electromagnetic wave oscillating at a base frequency (f) is generated in order to accelerate the particles, wherein an electrical measurement signal (M) generated by the particle beam () by means of electromagnetic interaction with the measurement recorder () is recorded by at least one measurement recorder () disposed in the hollow chamber structure (), said signal being a function of the distance between the measurement recorder () and the particle beam (). According to the invention, the measurement signal (M) is analyzed in a frequency range different from the base frequency (f) and higher natural frequencies of the hollow chamber structure (), comprising a whole multiple of the base frequency (f). 1. A method for measuring a location of a particle beam present in packets in a linear accelerator comprising a hollow structure , the method comprising:generating an electromagnetic wave oscillating at a basic frequency to accelerate particles;picking up, by at least one measurement probe disposed within the hollow structure, an electrical measurement signal generated by electromagnetic interaction with the at least one measurement probe, the electrical measurement signal depending on a distance between the at least one measurement probe and the particle beam; andevaluating the electrical measurement signal in a frequency range comprising a whole-number multiple of the basic frequency differing from the basic frequency and higher-frequency eigenfrequencies of the hollow structure.2. The method as claimed in claim 1 , wherein the hollow structure comprises a plurality of cavities and at least one intermediate area disposed between adjacent cavities of the plurality of cavities claim 1 , a field strength of the electromagnetic wave in the intermediate area causing the acceleration ...

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Номер записи: 26
09-05-2013 дата публикации

DEVICE FOR SENSING A CAPSULE IN A BEVERAGE PRODUCTION APPARATUS

Номер: US20130114089A1
Автор: Jarisch Christian, Kaeser Stefan, Perentes Alexandre
Принадлежит: NESTEC S.A.

The invention aims to provide a device sensing a capsule () inserted in a receptacle () in machine and physical parameters of liquid supplied by a beverage production apparatus flowing through the capsule in function of the type of capsule. The capsule containing beverage ingredient is inserted in a cylindrical or conical wide mouthed receptacle having an upper opening for inserting the capsule and a lower bottom closing the receptacle. The receptacle rotates around an axis of a hollow shaft () attached at the center and perpendicularly to the external face of the bottom of the receptacle, said shaft forming a hole at the center of the inner face of the bottom of the receptacle. The device comprises a rod sliding in the shaft and passing through the hole of the inner face of the bottom of the receptacle, said rod () being provided with a spring maintaining an end of the rod lifted inside the receptacle in contact with the capsule, the other end being inside the shaft. The device further comprising means for measuring the position of the end of the rod in the shaft, in order to control, in function of the size of the capsule inserted in the receptacle, rotation speed of the receptacle, discharge and physical parameters of liquid supplied by the beverage production apparatus flowing through the capsule. 1. Device for sensing a capsule in a beverage production apparatus , comprising a receptacle for receiving the capsule containing beverage ingredient , the receptacle having an upper opening for inserting the capsule and a bottom , the device comprises at least one sensing member for sensing the relative position of an external surface of the capsule in the receptacle , the relative position being representative of the size of the receptacle when the capsule is arranged in the receptacle and a member for providing a code which is related to the sensed relative position of the surface.2. Device according to claim 1 , wherein the sensing member comprises a retractable ...

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Номер записи: 27
16-05-2013 дата публикации

Strain Sensor

Номер: US20130118267A1
Автор: Katsunori Suzuki, Koji Yataka, Shingo Sakakibara, Yasuro Okumiya, Yoku Inoue, Yoshiki Terada
Принадлежит: Shizuoka University NUC, Yamaha Corp

A strain sensor includes a flexible substrate, a CNT film made of a plurality of CNT fibers aligned in an orientation direction, a pair of electrodes, and a protective coat. The electrodes are formed at the opposite ends of the CNT film in a perpendicular direction to the orientation direction of the CNT fibers. The protective coat protecting the CNT film is made of a resin, a water-based emulsion, or an oil-based emulsion. The protective coat is placed in contact with at least part of the CTN fibers on the surface of the CNT film. The strain sensor including the protective coat is able to prevent damage/breakage of the CNT film and to prevent foreign matters from entering into gaps between CNT fibers, thus improving durability in maintaining adequate sensing functionality.

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Номер записи: 28
16-05-2013 дата публикации

Mechanical-Quantity Measuring Device

Номер: US20130118268A1
Автор: Hiromi Shimazu, Hiroyuki Ohta, Yohei Tanno
Принадлежит: HITACHI LTD

A mechanical-quantity measuring device capable of measuring a strain component in a specific direction with high precision is provided. At least two or more pairs of bridge circuits are formed inside a semiconductor monocrystal substrate and a semiconductor chip, and one of these bridge circuits forms a n-type diffusion resistor in which a direction of a current flow and measuring variation of a resistor value are in parallel with a <100> direction of the semiconductor monocryastal silicon substrate, and an another bridge circuit is composed of combination of p-type diffusion resistors in parallel with a <110> direction.

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Номер записи: 29
30-05-2013 дата публикации

Bending sensor

Номер: US20130133435A1
Автор: Atsushi Muramatsu, Masaru Murayama, Yuuki Saitou
Принадлежит: Sumitomo Riko Co Ltd

A bending sensor includes a high resistance layer; a low resistance layer having a crack and a lower electrical resistance than the high resistance layer in a state where the crack is closed; an insulating layer between the high and low resistance layers; and a plurality of electrode portions connecting electrically in parallel the high resistance and low resistance layers. In an OFF state where a bend amount is small, the crack is unlikely to open and a combined resistance of electrical resistances of the high resistance layer and the low resistance layer is output as OFF resistance from the plurality of electrode portions. In an ON state where the bend amount is large, the crack is likely to open and at least the electrical resistance of the high resistance layer is output as ON resistance higher than the OFF resistance from the plurality of electrode portions.

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Номер записи: 30
30-05-2013 дата публикации

METHOD AND CIRCUIT ARRANGEMENT FOR CHECKING THE ROTOR POSITION OF A SYNCHROUNOUS MACHINE

Номер: US20130134967A1
Автор: Bitsch Christian, Budianu Bogdan, Kaufmann Tom, Leideck Jochen, Stauder Peter
Принадлежит: Continental Teve AG & Co oHG

A method for validating a vehicle-to-X message, in which the message is received by an antenna arrangement having a least two antenna elements connected with a communication device. An electromagnetic field strength of the message is recorded based on different reception characteristics with different power densities, wherein the message includes an absolute position of a transmitter, and an absolute position of a receiver determined on the basis of global satellite navigation or on a map comparison. A first relative position of the transmitter is calculated from the absolute positions of the receiver and the transmitter. A second relative position is calculated from the ratio of the power densities or read out from a reference diagram. If a comparison of the first and second relative positions reveals a large degree of correspondence, the message is validated, and if a large degree of deviation is detected, the message is rejected. 1. A method for the determination of the relative position of the rotor of an electronically-commutated synchronous machine comprising the steps of , providing three rotor position sensors which are fixed to the stator of the synchronous machine , conducting a first rotor determining process to determine a current rotor position , after the first rotor position determination process , rotating the rotor through a predefined angle by applying an appropriate voltage vector , whereafter conducting a second rotor position determination process comparing , the result of the second rotor position determination process with an anticipated rotor position.2. The method as claimed in claim 1 , further comprising in that a first commutation scheme for the synchronous machine is specified claim 1 , whereby an association between the appropriate voltage vector applied and the anticipated rotor position is established.3. The method as claimed in further comprising in that an association between the current rotor position and the appropriate voltage ...

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Номер записи: 31
06-06-2013 дата публикации

METHOD AND APPARATUS FOR SENSING MAGNETIC FIELDS

Номер: US20130141081A1
Автор: Höfer Johann, Mednikov Felix, Pfaffinger Christian, Schallmoser Guenter, Wisspeintner Thomas
Принадлежит: MICRO-EPSILON MESSTECHNIK GMBH & CO. KG

A method for detecting magnetic fields, particularly for detecting the position of objects with a preferably oblong, soft-magnetic element, which is connected to electronics, with via the electronics the impedance of the soft-magnetic material is measured, characterized in that a magnetic field is used in which by the position of an object which is located in an arrangement with the soft-magnetic material the magnetic field develops at the location of the soft-magnetic material, with the magnetic permeability μ of the soft-magnetic material adjusting, depending on the magnetic field and thus the position of the object. A respective device serves for applying the method according to the invention. 127-. (canceled)28. A method for detecting magnetic fields , particularly for detecting positions of objects with an oblong , soft-magnetic element , which is connected to electronics , with by said electronics the impedance of the soft-magnetic material is measured , wherein a magnetic field is used with , due to the position of an object , which is located in an arrangement for the soft-magnetic material , the magnetic field develops at the location of the soft-magnetic material , with the magnetic permeability μ of the soft-magnetic material adjusting depending on the magnetic field and thus on the position of the object.2932342. A method according to claim 28 , wherein by changing the magnetic permeability a relative position of a measuring object () is determined in reference to the oblong element () claim 28 , with the measuring object () comprising a permanent magnet (and/or electro-magnet) () and with the distribution of the magnetic field along the element () being considered.30. A method according to claim 28 , wherein the operating range is located on the declining flank of the permeability curve of the soft-magnetic material claim 28 , and an essentially linear connection is given between the position and the impedance.31. A method according to claim 28 , ...

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Номер записи: 32
13-06-2013 дата публикации

Sensor and inspection system deploying an optical conduit

Номер: US20130146753A1
Автор: Boris Leonid Sheikman, Nathan Andrew Weller
Принадлежит: General Electric Co

Embodiments of an inspection system comprise a conduit that can transmit light between a sensor and a processing component. In one embodiment, the sensor comprises an element that generates an electromagnetic field in response to an input from the processing component. The input comprises a light signal that traverses the conduit to the sensor. The sensor converts the light signal to an electrical signal to operate the element. In one example, the sensor generates a plurality of light signals, which also traverse the conduit to the diagnostic component where the lights signals are processed to determine, in one example, proximity of an object to the sensor.

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Номер записи: 33
13-06-2013 дата публикации

Sensor assembly and method for determining a spatial position of a first part relative to a second part

Номер: US20130147467A1
Автор: Thomas Engel, Uwe Loreit
Принадлежит: CARL ZEISS INDUSTRIELLE MESSTECHNIK GMBH, SENSITEC GMBH

A sensor assembly for determining a spatial position of a first part relative to a second part has at least one magnet disposed on the first part. The magnet generates a magnetic field that extends to the second part. The sensor assembly further has a pair of magnetic field sensors arranged at a spatial distance from each other on the second part. The magnet is positioned in an interval defined by the spatial distance between the magnetic field sensors. The magnetic field sensors each produce an output signal depending on the magnetic field. The output signals of the two magnetic field sensors are combined to form a common sensor signal related to the spatial position of the first part relative to the second part. The output signals of the two magnetic field sensors essentially represent a direction of the magnetic field at the location of the respective magnetic field sensors.

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Номер записи: 34
20-06-2013 дата публикации

SYSTEM AND SENSOR FOR MEASURING A DISTANCE TO A MAGNETIC ALTERNATING FIELD SOURCE

Номер: US20130154621A1
Автор: MOENKEMOELLER Ralf
Принадлежит:

A measuring system for determining the distance to a magnetic alternating field source, with a magnetic sensor arrangement, by means of which a characteristic magnetic alternating field signal of the magnetic alternating field source can be recorded, and an evaluation device connected with the magnetic sensor arrangement and by means of which the characteristic magnetic alternating field signals of the magnetic alternating field source recorded by the magnetic sensor arrangement can be evaluated and converted into the distance between the magnetic alternating field source on the one hand and the magnetic sensor arrangement on the other. 1910. A measuring system for determining the distance to a magnetic alternating field source , with a magnetic sensor arrangement , by means of which a characteristic magnetic alternating field signal of the magnetic alternating field source can be recorded , and an evaluation device connected with the magnetic sensor arrangement and by means of which the characteristic magnetic alternating field signals of the magnetic alternating field source recorded by the magnetic sensor arrangement can be evaluated and converted into the distance between the magnetic alternating field source on the one hand and the magnetic sensor arrangement on the other , wherein the magnetic sensor arrangement comprises at least two magnetic field sensors , which are arranged at a fixed distance in relation to each other on an axis of movement , on which and along which the magnetic alternating field source is movable with respect to the magnetic sensor arrangement , and in that the characteristic magnetic alternating field signals recorded in the at least two magnetic field sensors , are receivable in the evaluation device and can be set into a relationship to each other and in that the relationship between the at least two characteristic magnetic alternating field signals can be converted into the distance between the magnetic alternating field source on ...

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Номер записи: 35
20-06-2013 дата публикации

METHOD FOR DETERMINING THE RELATIVE POSITION OF DEVICES

Номер: US20130157721A1
Автор: Helgstrand Magnus, Nystrom Martin
Принадлежит: SONY ERICSSON MOBILE COMMUNICATIONS AB

The present invention relates to a method and arrangement for positioning at least two devices, a first and a second device relative each other. The method comprises: transmitting a number of magnetic pulses with the first device, detecting said pulses with the second device, based on said detected pulses generating a number of virtual planes, and determining a crossing line between said planes corresponding to a direction between said devices. 1. A method of positioning at least two devices , a first and a second device relative each other , the method comprising:transmitting a number of magnetic pulses with the first device,detecting said pulses with the second device,based on said detected pulses generating a number of virtual planes, anddetermining a crossing line between said planes corresponding to a direction between said devices.2. The method of claim 1 , wherein a first magnetic pulse has a known direction towards a reference direction known to the two devices.3. The method of claim 1 , wherein a first magnetic pulse is parallel to a horizontal component of earth magnetic field.4. The method of claim 3 , wherein a second magnetic pulse is a vertical pulse.5. The method of claim 4 , wherein the second device detects said first magnetic pulse and the detection is a well timed disturbance of earth magnetic field.6. The method of claim 5 , wherein from a point of view of the second device claim 5 , vectors describing the earth magnetic field and a resultant vector when said first pulse is active determines one plane contacting said first and second devices.7. The method of claim 5 ,wherein said second device detects said second pulse and the detected disturbance by a sensor of the second device determines a vertical plane connecting said first and second devices.8. The method of claim 7 , wherein the crossing of said two planes constitutes a line between the devices.9. The method according to claim 7 , wherein a third magnetic pulse is transmitted to determine ...

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Номер записи: 36
27-06-2013 дата публикации

CAPACITIVE DISTANCE SENSOR

Номер: US20130162271A1
Автор: Kuhnen Thorsten, Wuerstlein Holger
Принадлежит: BROSE FAHRZEUGTEILE GMBH & CO. KOMMANDITGESELLSCHAFT, HALLSTADT

A capacitive distance sensor is provided having an elongated sensor element. The sensor element comprises a cylindrical carrier body, which is made of an electrically non-conductive material and has a round cross-sectional areas, and a sensor area which substantially surrounds the carrier body in the manner of a sheath and is made of an electrically conductive material. 1. A capacitive distance sensor comprising: a cylindrical carrier body of an electrically non-conductive material having a round cross sectional area; and', 'a sensor area circumferentially surrounding the carrier body in the manner of a sheath of an electrically conductive material,, 'an elongated sensor element that compriseswherein the carrier body is formed a solid material.2. A capacitive distance sensor comprising: a cylindrical carrier body of an electrically non-conductive material having a round cross sectional area; and', 'a sensor area circumferentially surrounding the carrier body in the manner of a sheath of an electrically conductive material,, 'an elongated sensor element comprisingwherein the carrier body centrally has an opening which extends perpendicularly to a cross sectional area over an entire length of the cylindrical shape of the carrier body, andwherein the opening is filled with a core formed of an electrically non-conductive material.3. The capacitive distance sensor according to claim 1 , wherein the electrically conductive material of the sensor element is copper or aluminum.4. The capacitive distance sensor according to claim 1 , wherein the electrically non-conductive material of the carrier body is polyethylene.5. The capacitive distance sensor according to claim 1 , wherein the sensor area is substantially surrounded by an electrically non-conductive insulating layer.6. The capacitive distance sensor according to claim 1 , wherein the sensor area is formed of a wire mesh.7. A sensor element as claimed in for a capacitive distance sensor.8. The use of a sensor element ...

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Номер записи: 37
11-07-2013 дата публикации

CAPACITIVE WIRE SENSING FOR FURNITURE

Номер: US20130174343A1
Автор: CASSELL SAM, CHACON RYAN EDWARD, Madadi Avinash, ROHR WILLIAM
Принадлежит: L & P PROPERTY MANAGEMENT COMPANY

A system and method for incorporating presence-sensing technology into furniture is provided. More particularly, the invention relates to detecting presence using a metal, adjustable bed frame. The bed frame is pulsed with a voltage to provide a charge, against which capacitance is measured. A controller determines the corresponding response based on presence detection by the frame. Conductive bushings may also be used to measure capacitance using the bed frame. In further embodiments, capacitance is measured by a foil tape surrounding a perimeter of the adjustable bed. The foil tape has a voltage based on proximity of an object to the tape, and may be embedded with a capacitive wire. A processor receives information regarding changes in capacitance and determines when a change in voltage satisfies a threshold. Based on a determination of presence, or lack of presence, a variety of corresponding features of the adjustable bed may be activated. 1. An adjustable bed , comprising:a mattress support that comprises a plurality of support panels, at least one of said support panels movable relative to the other ones of said support panels to thereby adjust the bed;a mattress resting on top of the mattress support, said mattress having a covering material disposed over at least a top surface of the mattress;at least one capacitive component coupled to the bed, wherein the at least one capacitive component is adapted to have a voltage based on proximity of an object to the at least one capacitive component, and further wherein the at least one capacitive component comprises a metal frame associated with the adjustable bed; anda processor coupled to the at least one capacitive component, the processor adapted to receive information provided by the at least one capacitive component and to determine that a change in voltage satisfies a threshold.2. The bed of claim 1 , wherein the metal frame is coupled to the processor with at least one coaxial cable.3. The bed of claim 2 , ...

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Номер записи: 38
11-07-2013 дата публикации

Linear position sensor with anti-rotation device

Номер: US20130176018A1
Автор: Robert L. Newman, William D. Storrie
Принадлежит: Robert L. Newman, William D. Storrie

A sensor used to sense the position of an attached movable object. The sensor can be mounted to a pneumatic actuator. The sensor includes a housing that has a pair of cavities or pockets separated by a wall. A magnet carrier is positioned within one of the cavities and a magnet is coupled to the magnet carrier. The magnet carrier is coupled to the moveable object. A magnetic sensor is positioned in the other of the cavities. The magnetic sensor generates an electrical signal that is indicative of a position of the movable object.

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Номер записи: 39
11-07-2013 дата публикации

SYSTEM, AIRCRAFT OR SPACECRAFT, AND METHOD FOR MEASURING A CURRENT POSITION OF A SECOND VEHICLE PART RELATIVE TO A FIRST VEHICLE PART

Номер: US20130176019A1
Автор: Bauer Hans-Achim, Zybala Andre
Принадлежит: AIRBUS OPERATIONS GMBH

An arrangement for transmitting data and/or power between a chassis and a seat that is movably disposed on said chassis by means of a guide rail. Several primary iron half-cores that support at least one primary winding are arranged in a fixed manner within the guide rail while at least one secondary iron half-core comprising at least one secondary winding is placed on the seat. The primary half-cores are disposed within the guide rail in such a way that at least one primary and one secondary iron half-core are positioned relative to each other so as to transmit data and/or power. 110-. (canceled)11. An aircraft or spacecraft , comprising:a cabin management system;passenger-related means; anda system, comprising:a first vehicle part, which comprises one or more primary windings;a second vehicle part, which comprises one or more secondary windings for a magnetic interaction with the one or more primary windings and can be arranged in various positions relative to the first vehicle part;an energy supply device, which is set up to charge the one or more primary windings with a voltage or current in a first mode of the system;a measuring means, which is set up so as to measure a resulting current flowing through the one or more primary windings or a resulting voltage at the one or more primary windings; andan evaluation means, which determines a current position of the second vehicle part relative to the first vehicle part as a function of the resulting current or voltage;the evaluation means supplying the current position of the second vehicle part to the cabin management system, and the cabin management system activating the passenger-related devices which are assigned to the current position of the second vehicle part.12. An aircraft or spacecraft according to claim 11 , wherein the computer means is formed as at least one of a cabin management system and an in-flight entertainment system of the aircraft or spacecraft.13. An aircraft or spacecraft according to claim ...

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Номер записи: 40
11-07-2013 дата публикации

POSITION SENSOR

Номер: US20130179117A1
Автор: Delbaere Mickaël, Dorge Thierry, Frachon Didier, Masson Gérald
Принадлежит: MOVING MAGNET TECHNOLOGIES (MMT)

The disclosure relates in particular to a method for parameterizing a system for measuring an absolute position, the system including a permanent magnet, at least one probe that is mobile relative to the magnet over a given path, and a controller providing position information calculated on the basis of the arctangent of the ratio, wherein a correction coefficient G is assigned, between the output signals of the probe, wherein the signals are pseudo-sinusoidal and squared. The method includes an optimization operation that involves selecting the value of the coefficient G that minimizes the errors of the measurement system resulting from the pseudo-sinusoidal character of the signals output from the probe. 1. A system for measuring an absolute position , said system comprising a permanent magnet , and at least one probe that is mobile relative to said magnet over a given path , said magnet creating a magnetic field at the probe having a first magnetic component B , said to be tangential , in a direction of travel , and a second magnetic component B , said to be normal , and orthogonal to said first component and in quadrature , said probe delivering two electric signals V , Vthat depend on said components B , B , respectively , and a controller providing position information calculated on the basis of the arctangent of the ratio between said signals V , Vto which a correction coefficient G is assigned , said controller being parameterized to apply a gain G strictly different from k to one of the signals V , V , where k designates the ratio Vmax/Vmax , where Vmaxand Vmaxrespectively represent the amplitude of the signal Vand Vover said path , said gain G being calculated to minimize the deviations between the position values resulting from the magnetic components and the corresponding real mechanical position values.2. The system for measuring an absolute position according to claim 1 , wherein said permanent magnet has a magnetization direction that varies ...

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Номер записи: 41
18-07-2013 дата публикации

PATH MEASURING APPARATUS

Номер: US20130181700A1
Автор: Eckel Gerd, Zern Achim
Принадлежит: Balluff GmbH

The invention relates to a path measuring apparatus comprising at least a first measuring path and a second measuring path, these measuring paths each having an extension in a longitudinal direction and being oriented parallel to one another in at least a measuring range, at least one position indicator which couples to the measuring paths in a non-contact manner, and a measuring path holder which extends in the measuring range and has recesses, each recess having a measuring path arranged therein. 1. Path measuring apparatus , comprising:at least a first measuring path and a second measuring path, these measuring paths each having an extension in a longitudinal direction and being oriented parallel to one another in at least a measuring range;at least one position indicator which couples to the measuring paths in a non-contact manner; anda measuring path holder which extends in the measuring range and has recesses, each recess having a measuring path arranged therein.2. Path measuring apparatus in accordance with claim 1 , wherein at least a third measuring path is provided.3. Path measuring apparatus in accordance with claim 1 , wherein a measuring path comprises a waveguide and in particular a wire waveguide.4. Path measuring apparatus in accordance with claim 1 , wherein the waveguide is arranged in a flexible tube claim 1 , in particular a flexible silicone tube.5. Path measuring apparatus in accordance with claim 4 , wherein the flexible tube is constricted at locations thereof spaced apart from one another.6. Path measuring apparatus in accordance with claim 1 , wherein the measuring path holder is made of a fibre-reinforced material and in particular of a fibreglass-reinforced material.7. Path measuring apparatus in accordance with claim 6 , wherein a fibre orientation is at least approximately parallel to a longitudinal direction of a measuring path.8. Path measuring apparatus in accordance with claim 1 , wherein the recesses on the measuring path holder ...

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Номер записи: 42
18-07-2013 дата публикации

Apparatuses and Methods for Estimating the Yaw Angle of a Device in a Gravitational Reference System Using Measurements of Motion Sensors and a Magnetometer Attached to the Device

Номер: US20130185018A1
Автор: Sheng Hua
Принадлежит:

Methods for estimating a yaw angle of a body reference system of a device relative to a gravitational reference system using motion sensors and a magnetometer attached to the device are provided. A method includes (A) receiving measurements from the motion sensors and the magnetometer, (B) determining a measured 3-D magnetic field, a roll, a pitch and a raw estimate of yaw in the body reference system based on the received measurements, (C) extracting a local 3-D magnetic field from the measured 3-D magnetic field, and (D) calculating yaw angle of the body reference system in the gravitational reference system based on the extracted local 3-D magnetic, the roll, the pitch and the raw estimate of yaw using at least two different methods, wherein estimated errors of the roll, the pitch, and the extracted local 3-D magnetic field affect an error of the yaw differently for the different methods. 1. A method for estimating a yaw angle of a body reference system of a device relative to a gravitational reference system , using motion sensors and a magnetometer attached to the device , the method comprising:receiving measurements from the motion sensors and from the magnetometer;determining a measured 3-D magnetic field, a roll angle, a pitch angle and a raw estimate of yaw angle of the device in the body reference system based on the received measurements;extracting a local 3-D magnetic field from the measured 3-D magnetic field; andcalculating a tilt-compensated yaw angle of the body reference system of the device in the gravitational reference system based on the extracted local 3-D magnetic, the roll angle, the pitch angle and the raw estimate of yaw angle using at least two different methods, wherein an error of the roll angle estimate, an error of the pitch angle estimate, and an error of the extracted local 3-D magnetic field affect the error of the tilt-compensated yaw angle differently for the at least two different methods.2. The method of claim 1 , wherein the ...

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Номер записи: 43
01-08-2013 дата публикации

Home Appliance

Номер: US20130192312A1
Автор: DE PAOLI Stefano, IUS Nicola, Pelczer Andreas, PEUKER Thomas
Принадлежит: ELECTROLUX HOME PRODUCTS CORPORATION N.V.

A displacement sensor module for mounting on a telescopic-type damper a damper/detector assembly including such a displacement sensor module and a telescopic-type damper, and a household appliance including such a damper/detector assembly is provided. The displacement sensor module includes at least one coil element an electronic detection unit connected to the at least one coil element and adapted to detect an impedance change of the at least one coil element, and a coil housing for receiving and additionally or alternatively a coil support for supporting the at least one coil element and for supporting the electronic detection unit The displacement sensor module is adapted to be mounted on a telescopic-type damper wherein in particular the housing or support is adapted to fit over a portion of a pre-assembled damper 1. A displacement sensor module for mounting on a telescopic-type damper , comprising:at least one coil element,anda coil housing for receiving, and/or a coil support for supporting, the at least one coil element,wherein the displacement sensor module is adapted to be mounted on the telescopic-type damper, the housing or support being adapted to fit over a portion of the telescopic damper.2. A displacement sensor module according to claim 1 , further comprising means to releasably attach the displacement sensor module to the telescopic-type damper.3. A displacement sensor module according to claim 1 , further comprising an electronic detection unit connected to the at least one coil element and adapted to detect an impedance change of the at least one coil element claim 1 , wherein the coil housing and/or the coil support further supports the electronic detection unit.4. A displacement sensor module according to claim 1 , wherein the electronic detection unit is connectable to an electronic control unit of a household appliance by a wire connection or a wireless connection.5. A displacement sensor module according to claim 3 , wherein the coil housing ...

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Номер записи: 44
01-08-2013 дата публикации

SPINDLE FORCE ACTUATOR

Номер: US20130193958A1
Автор: Leuthold Hans
Принадлежит: SEAGATE TECHNOLOGY LLC

An apparatus includes a circuit, a code modulator, and an actuator. The circuit is operable to detect displacements of a rotating object while in motion. The circuit is operable to detect a position of the displacements and to generate a signal associated therewith. The code modulator is operable to generate a modulated signal based on the position and the displacements. The actuator is operable to apply a force to the rotating object, wherein the force is based on the modulated signal. 1. An apparatus comprising:a plurality of sensors operable to detect displacements of a spindle in motion;a converter coupled to said plurality of sensors, wherein said converter is operable to determine position of said displacements;a filter operable to determine instantaneous velocity associated with position of said displacements and further operable to determine a first force based on said instantaneous velocity; andan actuator operable to apply a second force to said spindle, wherein said second force substantially counteracts said first force and said displacements.2. The apparatus of claim 1 , wherein said plurality of sensors is selected from a group consisting of a hall sensor claim 1 , a charge coupling sensor claim 1 , and a microphone.3. The apparatus of claim 1 , wherein said actuator is selected from a group consisting of air jet claim 1 , piezo element claim 1 , and electromagnet.4. The apparatus of claim 1 , wherein said actuator is an electromagnet actuator and comprises odd and even coils wound clockwise and counterclockwise.5. The apparatus of claim 1 , wherein a gap between said actuator and said plurality of sensors ranges between 0.1 mm to 1.0 mm.6. The apparatus of claim 1 , wherein said plurality of sensors comprises at least 32 sensors.7. The apparatus of claim 1 , wherein said filter comprises a decimation filter.8. The apparatus of further comprising:a plurality of switches, wherein each switch of said plurality of switches is associated with a coil ...

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Номер записи: 45
01-08-2013 дата публикации

CAPACITIVE DISTANCE SENSOR

Номер: US20130193989A1
Автор: Kuhnen Thorsten, Wuerstlein Holger
Принадлежит: BROSE FAHRZEUGTEILE GMBH & CO. KG, HALLSTADT

A capacitive distance sensor is provided. The distance sensor includes a sensor element having an electrically conductive, elongated, flat sensor area which in turn contains a number of holes. The sensor area is completely surrounded by an electrically non-conductive insulating body, with the result that the insulating body completely covers the edge regions of the holes. The sensor element is produced, in particular, by first of all making the holes in the sensor area. In a subsequent step, the sensor area is completely encased by the insulating body which also completely fills the holes in the sensor area. 1. A capacitive distance sensor comprising:a sensor element that comprises an electrically conductive, elongated, flat sensor surface,a plurality of holes formed in the sensor surface; andan electrically nonconductive insulating body completely enclosing the sensor surface such that the insulating body completely covers edge regions of the holes.2. The capacitive distance sensor as claimed in claim 1 , wherein the holes are configured as elongated holes and wherein comparatively long axes of the elongated holes extend in a longitudinal direction of the sensor surface.3. The capacitive distance sensor as claimed in claim 1 , wherein the sensor element is flexible.4. The capacitive distance sensor as claimed in claim 1 , wherein the sensor surface is composed of copper.5. The capacitive distance sensor as claimed in claim 1 , wherein at least a portion of the insulating body is composed of PVC.6. The capacitive distance sensor as claimed in claim 1 , wherein the insulating body contains a plurality of cutouts corresponding to the plurality holes claim 1 , and wherein each cutout extends within one of the holes.7. The capacitive distance sensor as claimed in claim 6 , wherein a cross-sectional area of each cutout has substantially a same shape as that of the respective corresponding hole through which the cutout extends.8. A method for manufacturing a sensor ...

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Номер записи: 46
08-08-2013 дата публикации

Position Sensing Assembly for Use with a Vehicle Hydraulic Master Cylinder of a Vehicle Braking System with Master Cylinder Assembly Including Such a Position Sensing Assembly

Номер: US20130199174A1
Автор: Gonyou Jeremiah
Принадлежит: KELSEY-HAYES COMPANY

A position sensing assembly adapted for use with a master cylinder to measure travel of a piston of the master cylinder via a magnet operatively coupled to the piston thereof for movement therewith between a zero brake apply position and a full brake apply position. According to one embodiment, the position sensing assembly includes a housing adapted to be attached to a master cylinder housing and a flux concentrator operatively disposed with the position sensing assembly housing. The flux concentrator includes a first end, an intermediate body, and a second end. At least one of the first end and the second end defines a longitudinal plane and at least a portion of the intermediate body is oriented at an angle relative to the longitudinal plane whereby the position sensing assembly is adapted to measure the travel of the piston of the master cylinder via the magnet. 1. A position sensing assembly , adapted for use with a master cylinder to measure travel of a piston of the master cylinder via a magnet operatively coupled to the piston thereof for movement therewith between a zero brake apply position and a full brake apply position , the position sensing assembly comprising:a housing formed from a suitable material, the housing adapted to be attached to a master cylinder housing; anda flux concentrator operatively disposed with the position sensing assembly housing, wherein the flux concentrator includes a first end, an intermediate body, and a second end, wherein at least one of the first end and the second end defines a longitudinal plane and wherein at least a portion of the intermediate body is oriented at an angle relative to the longitudinal plane whereby the position sensing assembly is adapted to measure the travel of the piston of the master cylinder via the magnet.2. The position sensing assembly of wherein the flux concentrator is formed as part of the housing of the position sensing assembly during an overmolding process.3. The position sensing assembly ...

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Номер записи: 47
08-08-2013 дата публикации

POSITION SENSOR

Номер: US20130200884A1
Автор: INOUE Tetsuji, MANABE Yuichi
Принадлежит: AISAN KOGYO KABUSHIKI KAISHA

A position sensor includes: a stator including an excitation coil and a detection coil each formed in planar shape; and a mover placed to face the stator and provided with a plurality of regions having different magnetic permeability and being arranged periodically in a moving direction of the mover. The excitation coil includes a first excitation coil pattern and a second excitation coil pattern formed adjacent to the first excitation coil pattern. The detection coil includes a detection coil pattern placed between the first excitation coil pattern and the second excitation coil pattern in the moving direction of the mover. The second excitation coil pattern is wound to flow an excitation current in an opposite direction to the first excitation coil pattern. 1. A position sensor comprising: a stator including an excitation coil and a detection coil each formed in planar shape; and a mover placed to face the stator and provided with a plurality of regions having different magnetic permeability from each other and being arranged periodically in a moving direction of the mover ,wherein the excitation coil includes a first excitation coil pattern and a second excitation coil pattern formed adjacent to the first excitation coil pattern,wherein the detection coil includes a detection coil pattern placed between the first excitation coil pattern and the second excitation coil pattern in the moving direction of the mover, andwherein the second excitation coil pattern is wound to flow an excitation current in an opposite direction to the first excitation coil pattern.2. The position sensor according to claim 1 , wherein the first excitation coil pattern and the second excitation coil pattern include wire portions facing to each other claim 1 , the wire portions being located in positions overlapping part of wiring portions of the detection coil pattern by interposing an insulation layer.3. The position sensor according to claim 1 , further including a coupling part to add ...

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Номер записи: 48
08-08-2013 дата публикации

POSITION DETECTING DEVICE AND METHOD FOR PRODUCING A MARKING ARRANGEMENT FOR A POSTION DETECTING DEVICE

Номер: US20130200886A1
Автор: Kirste Vinzenz, Köppel Claudio Gian
Принадлежит: HAMILTON BONADUZ AG

The present invention provides a position detecting device for detecting a positional relationship between a first component () and a second component (), comprising a marking arrangement () which is provided on the first component () and has an absolute track () and an incremental track (), the absolute track () having a plurality of absolute markings () from which a binary absolute code sequence (B) can be read, and the incremental track () having a plurality of incremental markings () which are associated with the absolute markings () and from which an alternating incremental sequence (I) can be read, and a sensor arrangement () which is provided on the second component () and is configured to scan the absolute markings () and the incremental markings (), wherein the absolute code sequence (B) is formed from a first and a second De Bruijn sequence (B, B) of order N which follow one another, the second De Bruijn sequence (B) being a cyclic shift of the first De Bruijn sequence (B), and wherein the first De Bruijn sequence (B) ends with a first subsequence (Ua) of length N−1 and contains a second subsequence (Ub) of length N−1 which is identical to the first subsequence (Ua) and is shifted relative to the first subsequence (Ua) by an uneven number of places, and wherein the second De Bruijn sequence (B) is shifted cyclically relative to the first De Bruijn sequence (B) such that it ends with the second subsequence (Ub). 110101212aa. Position detecting device for detecting a positional relationship between a first component (; ) and a second component (; ) , comprising:{'b': 14', '14', '10', '10', '18', '18', '20', '20', '18', '18', '22', '22', '20', '20', '24', '24', '22', '22, 'i': a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a, 'a marking arrangement (; ) which is provided on the first component (; ) and has an absolute track (; ) and an incremental track (; ), the absolute track (; ) having a plurality of absolute markings (; ) from which a binary absolute code ...

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Номер записи: 49
08-08-2013 дата публикации

DEVICE FOR GENERATING A SENSOR SIGNAL AND METHOD FOR DETERMINING THE POSITION OF A SENSOR

Номер: US20130200887A1
Автор: Bartos Axel, Limouzineau Francois, Meisenberg Armin, Pieper Reinhold, Voss Andreas
Принадлежит: MEAS DEUTSCHLAND GMBH

The invention relates to a device for generating a sensor signal, the profile thereof depending on the position of a magnetic field-generating element relative to the device, with at least two magnetically sensitive sensors disposed along a measurement path, wherein a support field device, which generates a magnetic support field in the magnetically sensitive sensors, has at least in the magnetically sensitive sensors an essentially identical direction and an essentially homogeneous field strength. 1. A device for generating a sensor signal , the progression of which depends on the position of a magnetic field-generating element relative to the device , having at least two magnetic field-sensitive sensors , disposed along a measurement path , that generate the sensor signal or an intermediate signal produced for generating the sensor signal , or several intermediate signals used for generating the sensor signal ,whereina support field device generates in the magnetic field-sensitive sensors a magnetic support field which at least in the magnetic field-sensitive sensors has an essentially identical direction and an essentially homogeneous field strength, andwherein the at least one sensor has a first part which generates a first intermediate signal, and has a second part which generates a second intermediate signal, wherein the progression of the first intermediate signal and the progression of the second intermediate signal depend on the direction and/or the strength of an externally generated magnetic field, and the first intermediate signal has a substantially sinusoidal progression and the second intermediate signal has a substantially cosinusoidal progression, and the center of the first part correspond substantially to the center of the second part.2. A device having a magnetic field-generating element and a device for generating a sensor signal , the progression thereof depending on the position of a magnetic field-generating element relative to the device; ...

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Номер записи: 50
08-08-2013 дата публикации

Manual Positioning Device

Номер: US20130204566A1
Автор: Sgarz Heiko, Zibold Tobias
Принадлежит: Rebort Bosch GmbH

A manual positioning device includes at least one receiver, a reference network, a first switch, and at least one second switch. The at least one second switch, together with the first switch, is configured to switch at least two different reference signal paths for determining reference signals on the reference network. 1. A hand-held locating appliance apparatus comprising:at least one receiver;a reference network;a first switch; andat least one second switch which is configured, together with the first switch, to connect at least two different reference signal paths to the reference network for the purpose of determining reference signals.2. The hand-held locating appliance apparatus as claimed in claim 1 , further comprising:a signal generator,wherein at least the first switch is operatively arranged between the signal generator and the reference network.3. The hand-held locating appliance apparatus as claimed in claim 1 , further comprising:an antenna separating filter,wherein the at least one second switch is operatively arranged between the reference network and the antenna separating filter.4. The hand-held locating appliance apparatus as claimed in claim 1 , wherein the the first switch and the at least one second switch are configured to connect a reference signal path for the purpose of determining crosstalk.5. The hand-held locating appliance apparatus as claimed in claim 1 , wherein the the first switch and the at least one second switch are provided to connect a reference signal path for the purpose of determining a normalization signal.6. The hand-held locating appliance apparatus as claimed in claim 1 , further comprising:a computation unit which is configured to determine an at least temperature-compensated received signal.7. The hand-held locating appliance apparatus as claimed in claim 6 , wherein the computation unit is configured to transform at least one profile of a signal to a frequency domain.8. The hand-held locating appliance apparatus as ...

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Номер записи: 51
15-08-2013 дата публикации

METHOD AND APPARATUS FOR SENSING A HORSE'S MOODS

Номер: US20130211773A1
Автор: Loeschinger Juergen
Принадлежит:

In a method for sensing a horse's moods, in which multiple sensors sense physical parameters of the horse and a statement on the horse's well-being is derived from said measured values, the position of at least one ear is sensed by a sensor, and a statement reflecting the horse's mood in a differentiated manner on the basis of body language-related signals is output. 111.-. (canceled)12. A method for determining moods of a horse , comprising the steps of:determining, by a plurality of sensors, physiological parameters of the horse, including determining at least one of a movement and position of at least one ear of the horse;recognizing and quantifying body language signals mediated by the at least one of a movement and position of the at least one ear determined in said step of determining; andoutputting a statement derived from the determined physiological parameters indicating the moods of the horse.13. The method of claim 12 , wherein said step of determining further comprises determining at least one of a movement and position of the tail of the horse by the sensors.14. The method of claim 12 , wherein one of the sensors used for determining the at least one of a movement and position of the at least one ear is a motion sensor determining intensity of movement and/or orientation in space of the at least one ear.15. The method of claim 14 , wherein a magnetic field sensor is used as a motion sensor to determine the intensity of movement and/or orientation in space of the at least one ear.16. The method of claim 14 , wherein an acceleration sensor is used as a motion sensor to determine the intensity of movement and/or orientation in space of the at least one ear.17. The method of claim 12 , wherein said step of determining further comprises determining at least one of a movement and position of the head of the horse and calculating the at least one of a movement and position of the ear relative to the head.18. The method of claim 12 , wherein a sensor for ...

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Номер записи: 52
29-08-2013 дата публикации

Electronic Device and Method for Start-Up of an Electronic Device

Номер: US20130221759A1
Автор: Dieterle Roland, Girardey Romuald, Schlachter Marc
Принадлежит: ENDRESS + HAUSER GMBH + CO KG

An electronic device, comprising: a housing having at least one chamber; a magnetic element guideway for accommodating and guiding a magnetic element, wherein the magnetic element guideway enables positioning of an accommodated magnetic element in at least two magnetic element positions relative to the housing. A control and evaluation circuit is arranged in the chamber and has two Hall sensors for registering at least one component of a first local magnetic field at the respective site of the first Hall sensor and for the providing, in each case, a signal, which depends on the local magnetic field registered at the first site. The two Hall sensors have relative to the housing, in each case, a defined position, wherein the control circuit is suitable based on the signals to detect whether a magnetic element is present in the magnetic element guideway, and in case yes, based on at least one of the signals, to detect whether the magnetic element is located in the first defined magnetic element position or has been moved from this position. 113-. (canceled)14. An electronic device , comprising:a housing, which has at least one chamber in its interior;a magnetic element guideway for accommodating and guiding a magnetic element, wherein the magnetic element guideway enables positioning of an accommodated magnetic element in at least two defined magnetic element positions relative to the housing;a magnetic element; anda control and evaluation circuit, which is arranged in the chamber and has a first Hall sensor for registering at least one component of a first local magnetic field at the site of said first Hall sensor and for providing a first signal, which depends on the local magnetic field registered at the first site, wherein the first Hall sensor has a first defined position relative to the housing; anda second Hall sensor for registering at least one component of a second local magnetic field at the site of said second Hall sensor and for providing a second signal, ...

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Номер записи: 53
29-08-2013 дата публикации

Method And Device For Detecting When A Closing Point Of A Hydraulic Valve Has Been Reached

Номер: US20130226488A1
Автор: KRAFT Thomas, Riepl Hans, von Willmann Björn, Wirkowski Michael
Принадлежит:

A method and device are provided for detecting when a closing point of a hydraulic valve has been reached. The valve has a closing element operated by an electric actuator. A predetermined voltage for closing the valve is applied to the actuator. A profile of a current flowing through the actuator is detected. Based on a first increase in the profile corresponding to the valve being at least partially open, a subsequent decrease in the profile corresponding to the closing element carrying out a movement to close the valve, and a second increase in the profile following said decrease in the profile, a local minimum of the detected current is determined between the decrease and the second increase in the profile. Depending on the local minimum of the detected current, a closing point is then determined which corresponds to a time point of the local minimum of the detected current. 1. A method for detecting when a closing point of a hydraulic valve has been reached , wherein the valve has a closing body which can be activated by an electric actuator in order to close the valve , the method comprising:applying a voltage to the actuator, the voltage being predefined for closing the valve,detecting a profile of a current flowing through the actuator during a closing process of the valve, the profile of the detected current including a first rise corresponding to the valve being at least partially opened, a subsequent fall of the detected current corresponding to a closing movement of the closing body, and a second rise of the detected current subsequent to the fall of the detected current,determining a local minimum of the detected current between the fall and the second rise in the profile of the detected current, anddetermining a closing point corresponding to a time of the local minimum of the detected current, based on the determined local minimum of the detected current.2. A device for detecting when a closing point of a hydraulic valve has been reached , wherein the ...

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Номер записи: 54
05-09-2013 дата публикации

Proximity Sensor and Method For Determining The Proximity To An Electrically Conductive Body

Номер: US20130229174A1
Автор: Knaak Heinz
Принадлежит: Atlas Elektronik GmbH

The invention relates to a proximity sensor and a method for determining the proximity to an electrically conductive body. By means of a transmitting arrangement, to this end an alternating magnetic field is transmitted at a selected frequency an alternating magnetic field registered by a receiving arrangement. Moreover, frequencies of the registered alternating magnetic field, which are outside a predefined frequency band comprising the selected frequency and have an amplitude value above a predefined threshold value, are detected by means of a detection means. In a control logic, by means of a blocking circuit, frequencies of a predefined frequency band comprising the detected frequency or a plurality of predefined frequency bands comprising in each case one of the detected frequencies, are defined as blocked frequencies. Moreover, a frequency following the respective selected frequency and different from the selected frequency and the blocked frequencies, denoted hereinafter as the following frequency of the respectively selected frequency, is defined in a selection controller. By means of a time control of the control logic, the following frequency of a selected frequency is continuously selected as a newly selected frequency for a new time window following immediately after or chronologically spaced apart from the selected time window. 1. A proximity sensor for determining the proximity to an electrically conductive body , said sensor comprising:a transmitting arrangement structured and operable to transmit a transmitted alternating magnetic field at a selected frequency,a receiving arrangement structured and operable to register a registered alternating magnetic field,a detection means structured and operable to detect one or more frequencies of the registered alternating magnetic field, which are outside a predefined frequency band having the selected frequency and have an amplitude value above a predefined threshold; and a blocking circuit structured and ...

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Номер записи: 55
12-09-2013 дата публикации

MICROWAVE MOTION SENSOR

Номер: US20130234729A1
Автор: Jau Je-Kuan, Wu Ping-Hsun
Принадлежит: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

A microwave motion sensor including a transmitting device, a signal processing device, a signal processing device, and a path switching device is disclosed. The transmitting device transmits a microwave signal to a space under detection. The receiving device receives a reflected microwave signal reflected from the space under detection. The signal processing device processes the reflected microwave signal received by the receiving device to judge whether there is a disturbance in the space under detection, wherein the signal processing device generates the microwave signal. The path switching device is coupled to the signal processing device and the transmitting device and results in different phase shifts to a plurality of transmission paths travelled by the microwave signal. 1. A microwave motion sensor , comprising:a transmitting device transmitting a microwave signal to a space under detection;a receiving device receiving a reflected microwave signal reflected from the space under detection;a signal processing device processing the reflected microwave signal received by the receiving device to judge whether there is a disturbance in the space under detection, wherein the signal processing device generates the microwave signal; anda path switching device coupled to the signal processing device and the transmitting device, wherein the path switching device results in different phase shifts to a plurality of transmission paths which the microwave signal passes through.2. The microwave motion sensor according to claim 1 , wherein claim 1 , a plurality of sensing zero points in these transmission paths are not overlapped with each other.3. The microwave motion sensor according to claim 1 , further comprising a path switching controller coupled to the path switching device to select one of these transmission paths.4. The microwave motion sensor according to claim 3 , wherein claim 3 , the path switching controller turns off these transmission paths at non-sampling ...

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Номер записи: 56
12-09-2013 дата публикации

APPARATUSES AND METHODS FOR DYNAMIC TRACKING AND COMPENSATION OF MAGNETIC NEAR FIELD

Номер: US20130238269A1
Автор: Sheng Hua
Принадлежит: HILLCREST LABORATORIES, INC.

A method for tracking dynamic near fields and correcting a magnetic field measured together with an angular position having an unknown yaw offset relative to a gravitational reference system includes calculating a magnetic field difference between a magnetic field based on the measured magnetic field and the angular position, and a previous total magnetic field, estimating current near fields to be a sum of previous near fields and a portion of the calculated magnetic field difference, computing a magnitude difference, and an angular difference between the measured magnetic field corrected using the estimated current near fields and a fixed vector, comparing the magnitude difference and the angle difference with noise, and if the current measured magnetic field is consistent with the previously tracked magnetic near fields, updating the angular position and correcting the measured magnetic field for the current near field effects using the updated angular position. 1. A method for tracking dynamic near fields and correcting a magnetic field measured together with an angular position in a body reference system where the angular position has an unknown yaw offset relative to a gravitational reference system , the method comprising:calculating a magnetic field difference between (1) a magnetic field in the gravitational reference system, evaluated based on the measured magnetic field and assuming that the angular position is accurate, and (2) a previous estimated total magnetic field including previous tracked near fields, in the gravitational reference system;estimating current near fields to be a sum of the previous near fields and a portion of the calculated field difference;computing a magnitude difference between magnitudes of a current estimated total magnetic field including the estimated current near-fields and the measured magnetic field, and an angular difference between (1) a first angle between the current estimated total magnetic field and a fixed vector ...

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Номер записи: 57
19-09-2013 дата публикации

ELECTRIC MACHINE

Номер: US20130241575A1
Автор: Finkler Roland
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

An electric machine includes a first active part, which has a plurality of active part segments disposed one behind the other in a direction of movement of the electric machine, with each of the active part segments including a position measuring device, and a second active part with a measuring device for identifying the respective position measuring device. Each position measuring device has at least one position measuring unit having a dielectric constant, wherein the dielectric constant of the position measuring unit in one of the active part segments is different than the dielectric constant in an adjacent one of the active part segments. The measuring device includes at least one measuring unit to determine the dielectric constant of the position measuring units. 1. An electric machine , comprising:a first active part having a plurality of active part segments which are disposed one behind the other in a direction of movement of the electric machine;a plurality of position measuring devices respectively provided in the active part segments, each position measuring device including at least one position measuring unit having a dielectric constant, wherein the dielectric constant of the position measuring unit in one of the active part segments is different than the dielectric constant in an adjacent one of the active part segments; anda second active part having a measuring device for identifying the position measuring devices, said measuring device including at least one measuring unit to determine the dielectric constant of the position measuring units.2. The electric machine of claim 1 , wherein the measuring device comprises at least two of said measuring unit disposed in spaced-apart relationship in the direction of movement of the electric machine such that for each position of the first active part relative to the second active part at least one of the measuring units is positioned over one of the position measuring devices at any given time.3. The ...

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Номер записи: 58
19-09-2013 дата публикации

MONITORING OF CLEARANCE

Номер: US20130243577A1
Автор: Chana Kamaljit Singh, Sullivan Jonathan Shamus
Принадлежит: QINETIQ LIMITED

The clearance between a stationary object (such as a gas turbine engine casing) and one or more moving objects (such as the blades of a rotating turbine) is measured using a pair of electrical proximity sensors mounted on the stationary object with their sensitive fields directed towards the path of the moving object(s) and at angle to each other. The clearance is calculated by deriving a time interval between interceptions of the respective moving object with the sensitive fields of the two sensors and from the geometry of the set up. 1. Apparatus for use in monitoring the clearance between a stationary object and one or more moving objects comprising a pair of electrical proximity sensors mounted in relation to the stationary object with their sensitive fields directed towards the path of the moving object(s) and at an angle to each other.2. Apparatus according to wherein said angle is within the range of 15-90°.3. Apparatus according to wherein said fields converge towards each other.4. Apparatus according to wherein said fields diverge from each other.5. Apparatus according to wherein said sensors are eddy current sensors.6. Apparatus according to wherein each said sensor comprises a common coil for use in both generating a magnetic field and detecting the effect of eddy currents generated by said field in such moving object(s).7. Apparatus according to further comprising one or more oscillators for applying alternating currents to each said coil at different frequencies to each other.8. Apparatus according to wherein said coils are wound on intersecting formers.9. (canceled)10. A turbomachine equipped with apparatus according to for use in monitoring the clearance between rotor blade tips and a surrounding casing.11. A gas turbine engine equipped with apparatus according to for use in monitoring the clearance between turbine blade tips and a surrounding casing.12. A method of monitoring the clearance between a stationary object and one or more moving objects ...

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Номер записи: 59
19-09-2013 дата публикации

Systems and methods for locating buried or hidden objects using sheet current flow models

Номер: US20130245990A1
Автор: Ray Merewether
Принадлежит: Seescan Inc

Systems, methods, and apparatus for determining an estimated depth of a buried object using sheet current flow models are disclosed. In one embodiment a buried object locator may process magnetic signals emitted from the buried object using a closed form sheet current flow model taken from three or more sensor positions to determine, store, and/or display estimated depth information of the buried object.

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Номер записи: 60
19-09-2013 дата публикации

DEVICE FOR DETERMINING THE POSITION OF A MAGNETIC ELEMENT USING LINEAR HALL-EFFECT CELLS

Номер: US20130245992A1
Автор: Servel Eric
Принадлежит: CONTINENTAL AUTOMOTIVE FRANCE

A device for determining the position of a magnetic element (), the magnetic element being able to be moved in at least two directions relative to a longitudinal axis (A), a first direction (Z) and a second direction (X). The device includes: a position sensor () including two sets of two Hall-effect cells measuring the same magnetic field generated by the magnetic element, a first set along a first axis (B) substantially perpendicular the longitudinal axis (A), and a second set along a second axis (C) substantially parallel to the first axis (B), the magnetic element being moveable relative to the position sensor; first unit () for calculating the position of the magnetic element in the main direction (Z); and second unit () for calculating the position of the magnetic element in the secondary direction (X). 150150. A method for determining the position of a magnetic element () using a device () , said magnetic element () being able to be moved in at least two directions relative to a longitudinal axis (A) , a first direction , called the main direction (Z) , and a second direction , called the secondary direction (X) , said device comprising:{'b': 60', '70', '70', '70', '70, 'i': a', 'b', 'c', 'd, 'a position sensor () comprising two sets of two Hall-effect cells measuring the same magnetic field generated by the magnetic element, a first set comprising a first cell () and a second cell () along a first axis (B) substantially perpendicular to the longitudinal axis (A), and a second set comprising a third cell () and a fourth cell () along a second axis (C) substantially parallel to the first axis (B), the magnetic element being moveable relative to said two sets of two Hall-effect cells;'}{'b': '90', 'means () for measuring voltages output by each Hall-effect cell;'}{'b': '91', 'first means () for calculating the position of the magnetic element in the main direction (Z); and'}{'b': '92', 'second means () for calculating the position of the magnetic element in the ...

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Номер записи: 61
19-09-2013 дата публикации

APPARATUS FOR DETERMINING THE ANGULAR POSITION OF THE ROTOR OF AN ELECTRIC MACHINE

Номер: US20130245994A1
Автор: Strothmann Rolf
Принадлежит:

An apparatus for determining the position of the rotor of an electric machine in relation to the stator. The machine has multiple phases, each of which includes at least one pole winding with a magnetizable core. The apparatus includes devices for detecting measurement signals that are characterized by the momentary degrees of magnetization of the pole winding cores. The degrees of magnetization are influenced by the angular position of the magnetic field of the rotor. The devices are also used to detect the currents in the phases and determine the angular position of the rotor from the detected measurement signals, taking into account a contribution of the phase currents to the degrees of magnetization of the pole winding cores. 110-. (canceled)11. An apparatus for determining a position of a rotor of an electric machine in relation to a stator , wherein the machine includes several phase strands , each of which has at least one pole winding with a magnetizable core , the apparatus comprising devices for acquiring measurement signals characteristic of instantaneous degrees of magnetization of the pole winding cores influenced by an angular position of a magnetic field of the rotor , wherein the devices are also provided to acquire currents in the phase strands and to determine the angular position of the rotor from the measurement signals under consideration of a contribution of the phase-strand currents to the degrees of magnetization of the pole winding cores.12. The apparatus according to claim 11 , wherein the measurement signals are representative of instantaneous inductances of the phase strands.13. The apparatus according to claim 11 , wherein said devices are provided to deduce a vector of magnetic flux (φ) permeating the electric machine from the acquired measurement signals; to determine a vectorial contribution (φ) of the currents in the phase strands to the magnetic flux (φ); and to determine a vectorial contribution (φ) of the magnetic field of the ...

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Номер записи: 62
03-10-2013 дата публикации

POSITION DETECTION DEVICE

Номер: US20130257411A1
Автор: OOWADA Takahumi
Принадлежит: Denso Corporation

In a position detection device, an amplitude modulation is executed for AC excitation signals Sc using modulation wave signals. Differential amplifiers execute a voltage conversion of the modulated wave signal Sin, Cos to digital data SIN, COS and transmit them to a microcomputer. The microcomputer multiplies the modulated wave signals SIN, COS with parameters cos φ, sin φ, and executes a subtraction of the multiplied value to obtain an error-correlation value ε. An angle calculations section in the microcomputer receives a detected value εc obtained by multiplying the error-correlation value ε with a binary detection signal Rd. The binary detection signal Rd corresponds to a positive sign or a negative sign of the signal Sc. It is adjusted that the sampling number of samples of the signal Rd corresponding to a positive value is equal to that corresponding to a negative value during one period of the signal Sc. 2. The position detection device according to claim 1 , wherein the imbalance avoidance section comprises a prediction avoidance section configured to avoid a difference claim 1 , which is predicted claim 1 , occurring between the sampling number of samples of the alternating current excitation signal having a positive sign and the sampling number of samples of the alternating current excitation signal having a negative sign during a predetermined period.3. The position detection device according to claim 2 , wherein the detection section comprises an alternating current excitation signal sampling section configured to execute a periodic sampling of the alternating current excitation signal claim 2 ,the imbalance avoidance section determines the sampling period and the sampling phase of the alternating current excitation signal so that the period in which the alternating current excitation signal having a positive value and the period in which the alternating current excitation signal having a negative value have the same number of sampling, andthe prediction ...

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Номер записи: 63
03-10-2013 дата публикации

External Charger for a Medical Implantable Device Using Field Sensing Coils to Improve Coupling

Номер: US20130261704A1
Автор: Aghassian Daniel, Chen Joey, Freidin Lev
Принадлежит:

By incorporating magnetic field sensing coils in an external charger, it is possible to determine the position of an implantable device by sensing the reflected magnetic field from the implant. In one embodiment, two or more field sensing coils are arranged to sense the reflected magnetic field. By comparing the relative reflected magnetic field strengths of the sensing coils, the position of the implant relative to the external charger can be determined. Audio and/or visual feedback can then be communicated to the patient to allow the patient to improve the alignment of the charger. 1. An external charger for issuing a magnetic field to charge an implantable medical device , comprising:a plurality of sensors; andan alignment sensing circuit configured to determine an alignment of the external charger relative to the implantable medical device, wherein the determination is based on electrical measurements taken from the plurality of sensors in response to an interaction between the magnetic field and the implantable medical device.2. The external charger of claim 1 , further comprising:a position indication circuit coupled to the alignment sensing circuit configured to indicate to a user a misalignment of the external charger relative to the implantable medical device.3. The external charger of claim 2 , wherein the position indication circuit is further configured to indicate to the user how to improve the alignment of the external charger relative to the implantable medical device.4. The external charger of claim 2 , wherein the position indication circuit is configured to activate visual indicators on the external charger.5. The external charger of claim 4 , wherein the visual indicators are configured to indicate a direction in which the external charger should be moved to improve the alignment of the external charger relative to the implantable medical device.6. The external charger of claim 2 , wherein the position indication circuit is configured to transmit ...

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Номер записи: 64
03-10-2013 дата публикации

SYSTEMS, METHODS, AND APPARATUS FOR PROVIDING INDOOR NAVIGATION USING MAGNETIC SENSORS

Номер: US20130261964A1
Автор: Goldman David Allan, Patel Nirav Balkrishna
Принадлежит:

An indoor navigational system determines a location of a moveable object in an indoor area and displays this location to a user. The system includes an absolute position sensor coupled to a case attached to a moveable object including a motion sensor coupled to a case including a first magnetic field sensor configured to detect a polarity of a magnet as the magnet passes in proximity to the first magnetic field sensor, a code wheel having two or more magnets alternately oriented with north and south polarities facing toward the first magnetic sensor, the code wheel positioned to rotate in unison with a wheel of the moveable object, and encoder circuitry configured to determine an amount of rotation of the wheel of the moveable object based on an output of the first magnetic field sensor. 1. An apparatus comprising: a light detecting sensor which detects uniquely timed pulses of light emitted from a light emitting device in proximity to the moveable object; and', 'circuitry configured to determine an identity of the light emitting device in proximity to the moveable object based on the sensed uniquely timed pulses of light; and, 'an absolute position sensor coupled to a case attached to a moveable object including a first magnetic field sensor configured to detect a polarity of a magnet as the magnet passes in proximity to the first magnetic field sensor;', 'a code wheel having two or more magnets alternately oriented with north and south polarities facing toward the first magnetic sensor, the code wheel positioned to rotate in unison with a wheel of the moveable object; and', 'encoder circuitry configured to determine an amount of rotation of the wheel of the moveable object based on an output of the first magnetic field sensor., 'a motion sensor coupled to the case including2. The apparatus of claim 1 , wherein the motion sensor is configured to transmit a quadrature encoded signal indicative of the determined amount of movement claim 1 , and the absolute position ...

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Номер записи: 65
03-10-2013 дата публикации

ORIENTATION DETECTION DEVICE, ORIENTATION DETECTION METHOD AND PROGRAM STORAGE MEDIUM

Номер: US20130262024A1
Автор: HAYASHI Ryutaro, KASUGA Kazutaka, SAKURAI Keiichi, TABATA Yuji
Принадлежит: CASIO COMPUTER CO., LTD.

In the preset invention, in an initial stationary state of a drumstick section, a CPU stores each axis component of geomagnetism obtained by a magnetic sensor in a RAM, and obtains each axis component of geomagnetism obtained by the magnetic sensor which is changed by a motion provided to the drumstick section at every predetermined timing. Then, the CPU accumulates each axis component of geomagnetism obtained at every predetermined timing, for each predetermined interval, and conforms each axis component of geomagnetism accumulated thereby to each axis component of geomagnetism stored in the RAM. 1. An orientation detection device comprising:a holding member which is operated by a user;a magnetic sensor which detects magnetism occurring in each direction of three axes of the holding member which are orthogonal to each other;a storage control section which stores in memory the magnetism by geomagnetism detected by the magnetic sensor in an initial stationary state of the holding member and an orientation parameter in the initial stationary state;an obtainment section which obtains the magnetism detected by the magnetic sensor at every predetermined timing;an accumulation section which accumulates output values of each axis component of the magnetic sensor obtained at every predetermined timing by the obtainment section; anda correction section which corrects the orientation parameter so that the output value of each axis component of the magnetic sensor accumulated by the accumulation section conforms to initial magnetism stored in the memory.2. A method performed by an orientation detection device having a holding member which is operated by a user and a magnetic sensor which detects magnetism occurring in each direction of three axes of the holding member which are orthogonal to each other , comprising:storing in memory the magnetism by geomagnetism detected by the magnetic sensor in an initial stationary state of the holding member and an orientation parameter in ...

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Номер записи: 66
10-10-2013 дата публикации

Method and device for determining the absolute position of a movable body

Номер: US20130268234A1
Автор: Josef Janisch
Принадлежит: Zentrum Mikroelektronik Dresden GmbH

In a method for determining absolute position of a mobile element in reference to two magneto-sensitive sensors, having a source of a magnetic field fastened to the element, a first sensor signal and a second sensor signal are measured with one magneto-sensitive sensor each. An amplitude ratio of the respective sensor signals and the off-set values about the respective zero point of the sensor signals are determined from the minimum and maximum values of the sensor signals, and from these values, scaled sensor signals are calculated that form a sum signal and a difference signal, which are scaled, with the determination of the minimum and the maximum values occurring by a relative movement of the element over a full range of motion, and an absolute position is calculated via the scaled sum signal and the scaled difference signal.

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Номер записи: 67
17-10-2013 дата публикации

POSITION MEASURING SYSTEM AND ASSOCIATED MEASURING METHOD FOR DETECTING AN INDICATED POSITION OF A LINEARLY MOVABLE GUIDE ELEMENT

Номер: US20130271120A1
Автор: Reymann Markus
Принадлежит: AREVA NP GMBH

A position measuring system detects an extreme position of a guide rod which extends along a path that is rectilinear relative to a guide system and can be moved along the rectilinear path, wherein the system operates reliably, and requires a minimum of electrical lines. The position measuring system is equipped with a plurality of sensor elements and a magnetic element, wherein the magnetic element is configured to form a magnetic field. The magnetic element is connected to the guide rod. Each sensor element is configured to detect a magnetic field within a detection region, a field strength of the magnetic field being greater at the location of the sensor element than a predefined threshold value. At least one sensor element is connected to the guide system and is arranged in an environment of the path. A corresponding measuring method uses the position measuring system to detect the extreme positions. 115-. (canceled)16. A position measuring system for detecting an indicated position of a guide rod extending along a rectilinear path being rectilinear relative to a guide system and can be moved along the rectilinear path , the position measuring system comprising:a number of reed contact elements;at least one magnetic element for forming a magnetic field, said magnetic element connected to the guide rod;at least one of said reed contact elements is in each case configured within a detection region to detect the magnetic field whose field strength is greater at a location of said one reed contact element than a predefined threshold value when said at least one magnetic element approaches said one reed contact element, at least one of said reed contact elements disposed in an environment of the rectilinear path;an inductive measuring system for determining a position of the guide rod disposed in the environment of the rectilinear path, said inductive measuring system having a number of electric induction coils; anda circuit configuration having at least one ohmic ...

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Номер записи: 68
17-10-2013 дата публикации

INDUCTIVE PROXIMITY SENSOR

Номер: US20130271158A1
Автор: BAAK Josef, MACHUL Olaf, THOSS Sascha
Принадлежит: SICK AG

The invention relates to an inductive proximity sensor for determining the presence and/or the distance of an electrically conductive object which is designed to evaluate an oscillation in the form of an analog signal whose amplitude depends on the presence or absence and/or on the distance of an electrically conductive object. In accordance with the invention, the inductive proximity sensor includes at least one A/D converter which converts this analog signal into a digital input signal and includes at least one mixer which multiplies the digital input signal by a digital reference signal to form a digital output signal, wherein the digital reference signal is identical to the digital input signal or only differs from the digital input signal by a constant factor. The invention further relates to a method for determining the presence and/or the distance of an electrically conductive object with the aid of a proximity sensor. 1102020. An inductive proximity sensor () for determining at least one of a presence of an electrically conductive object and a distance of an electrically conductive object () , wherein said sensor is designed to evaluate an oscillation in the form of an analog signal having an amplitude , with the amplitude depending on a member of the group consisting of the presence of an electrically conductive object , an absence of an electrically conductive object and the distance of an electrically conductive object () ,{'b': 10', '24', '32', '24', '22', '26', '26', '32', '26', '26', '34', '26', '26', '26', '26, 'the inductive proximity sensor () comprising at least one A/D converter (); and at least one mixer (), wherein the at least one A/D converter () converts said analog signal () into a digital input signal (, ′); wherein the at least one mixer () multiplies the digital input signal (, ′) by a digital reference signal to form a digital output signal (), wherein the digital reference signal is either identical to the digital input signal (, ′) or ...

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Номер записи: 69
31-10-2013 дата публикации

ELECTRIC FIELD SENSING DEVICE

Номер: US20130285672A1
Автор: Kent Stephen Christopher, Mallinson Paul Benjamin, RUSSELL BRIAN KEITH, SOLOMON CHRISTOPHER MICHAEL
Принадлежит:

A sensing system is disclosed that uses at least one conductive plate and associated electronic circuitry to provide an output that is indicative of an object's position in relation to the at least one conductive plate. The sensing system is provided with a high impedance drive signal that varies as a result of the location of an object relative to the at least one conductive plate. The electronic circuitry receives a high impedance drive signal value as an input and a processor uses the value to calculate a digital output indicative of the object's position. The high impedance drive signal value is monitored over time enabling the objects position, displacement, pressure, movement, impact and energy to be determined. This data is output to a display and may also be transmitted to a person located remotely from the object being monitored. 170-. (canceled)71. An apparatus comprising:an alternating current source;a conductive member configured to produce an electric field in response to a signal associated with an output of the alternating current source; anda processing circuit electrically coupled to the conductive member, the processing circuit configured to detect a change in an output of the conductive member associated with at least one of a position or a movement of a conductive body disposed within the electric field, the processing circuit having a processor configured to operate substantially synchronous with the alternating current source.72. The apparatus of claim 71 , further comprising:a resistor electrically coupled to the alternating current source such that the signal associated with the output of the alternating current source is a high-impedance drive signal.73. The apparatus of claim 71 , further comprising:a sensor configured to detect the output of the alternating current source and to generate a reference signal substantially synchronous with the output of the alternating current source.74. The apparatus of claim 71 , wherein the output of the ...

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Номер записи: 70
31-10-2013 дата публикации

Tunable proximity sensor

Номер: US20130285675A1
Автор: Boris Leonid Sheikman, Nathan Andrew Weller, Yongjae Lee
Принадлежит: General Electric Co

A tunable proximity sensor and a method of manufacturing the same are disclosed. The proximity sensor includes a cap with different sections having different dielectric constants, shapes, and/or thicknesses. As the cap is rotated with respect the sensing element, these non-uniform sections induce a different loading on the sensor element from the electromagnetic field, allowing the proximity sensor to be tuned.

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Номер записи: 71
07-11-2013 дата публикации

Sensor Head for an Encoder

Номер: US20130293222A1
Автор: Arnstein Richard, Larsson Magnus
Принадлежит:

A sensor head for an encoder assembly includes a housing and at least two detectors. The sensor head is intended for scanning directly toward a rotatable encoding member positioned on a carrier ring. The carrier ring is intended to be installed on a shaft of a machine. The detectors are arranged on detector strips are displaceably attached to the housing. 1. A sensor head for an encoder , comprising:a housing; andat least two detectors displaceably attached to the housing.2. The sensor head according to claim 1 , wherein a position of each detector is displaceable in accordance with a dimension of a shaft to which the sensor head is installable.3. The sensor head according to claim 1 , wherein each detector is arranged on a detector strip having a circuit board.4. The sensor head according to claim 3 , wherein each detector is arranged in one end of a detector strip claim 3 , and a pivot of the detector strip is arranged at an opposite end of a detector strip.5. The sensor head according to claim 4 , wherein the pivot claim 4 , the detector claim 4 , and a center of a shaft claim 4 , when the sensor head is installed to the shaft claim 4 , are arranged along a straight line when the sensor head is in a correct installation position.6. The sensor head according to claim 1 , wherein the detectors are displaceably arranged within the housing.7. The sensor head according to claim 1 , wherein a front wall of the sensor head facing a shaft has a concave circular arc shape claim 1 , as seen in a direction toward the shaft.8. The sensor head according to claim 6 , wherein a front wall of the sensor head facing a shaft includes a slot on an inside of the housing claim 6 , each detector is arranged at an outer end of a detector strip claim 6 , the outer end of each detector strip arranged in the slot.9. The sensor head according to claim 7 , wherein the front wall of the sensor head facing a shaft includes a slot on an inside of the housing claim 7 , and each detector is ...

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Номер записи: 72
07-11-2013 дата публикации

Techniques for calibrating a linear position sensor

Номер: US20130293223A1
Автор: Daniel W. Youngner, Douglas R. Carlson, Kelly P. Muldoon
Принадлежит: Honeywell International Inc

Techniques are described for sensing a position of an object located within an enclosure over a position range. The techniques include generating an expected output signal of each of a plurality of magnetic field sensors disposed along an outer surface of the enclosure, receiving actual output signals from the sensors, wherein each actual output signal indicates a relative proximity of a magnetic target coupled to the object to the corresponding sensor. The techniques further include superimposing the expected output signal over the actual output signals, and iteratively shifting the expected output signal over position relative to the actual output signals and comparing the shifted expected output signal to the actual output signals, until the expected output signal compared to the actual output signals corresponds to a substantially minimized error parameter. The position of the object may then be determined based at least in part on the shifted expected output signal.

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Номер записи: 73
14-11-2013 дата публикации

GEAR ABSOLUTE POSITION SENSOR FOR MANUAL TRANSMISSIONS

Номер: US20130300403A1
Автор: "OConnor Kevin", Benson Christopher G., Bur Bradford W., Cousins William L., Pickhard Mark, Stuve Steven R.
Принадлежит:

The present invention provides a gear absolute position sensor assembly (GAPS) that senses the current absolute, position of the shift lever of a manual transmission. The sensor assembly provides data to an associated electronic controller such as an engine control module (ECM) regarding the current position of the shift lever, such as an engaged gear. The sensor assembly preferably comprises at least one Hall effect or other type of magnetic field (proximity) sensors in combination with an application specific integrated circuit (ASIC) which is supplied with data from the sensors, decodes the output of the sensors and provides an output identifying a specific engaged gear or neutral for use by vehicle or engine management electronics. The sensors are mounted proximate the shift linkage at a location where they can sense both rotation and translation. 1. A gear position sensor assembly for a manual transmission , the assembly comprising:a shift linkage having an operator engageable shift lever coupled to a shift member moveable first rotationally and then longitudinally from a neutral position to select and engage a plurality of gear ratios, said shift member including at least one magnet ring;at least one magnetic sensor disposed adjacent said magnet ring, said magnetic sensor capable of sensing three dimensional motion of said magnet ring and providing an output; andan integrated circuit for receiving said output of said magnetic sensor and providing a signal indicating a current shift linkage position.2. The gear position sensor assembly for a manual transmission of wherein said at least one magnetic sensor is a three dimensional Hall effect sensor.3. The gear position sensor assembly for a manual transmission of further including a second magnet ring and a second magnetic sensor disposed adjacent said second magnet ring.4. The gear position sensor assembly for a manual transmission of wherein said application specific integrated circuit provides a PWM output.5. ...

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Номер записи: 74
21-11-2013 дата публикации

TURBINE ENGINE FAN OR COMPRESSOR

Номер: US20130309063A1
Автор: Bernard Sebastien, Buyle Philippe Charles Octave, Lanneree Christian, LEROUX Andre, Sarnago Philippe, Tourin David
Принадлежит: SNECMA

A turbine engine stage including a rotor wheel including a plurality of blades surrounded on an outside by a casing including a layer of abradable material on its inside surface facing free ends of the blades. At least one plane sensor for measuring clearance at blade tips is carried by the inside surface of the casing and is covered by the layer of abradable material. 110-. (canceled)11. A turbine engine stage comprising:a rotor wheel including a plurality of blades surrounded on an outside by a casing carrying a layer of abradable material on its inside surface facing free ends of the blades; andat least one plane sensor for measuring clearance at blade tips carried by the inside surface of the casing and which is covered by the layer of abradable material.12. A turbine engine stage according to claim 11 , wherein the plane sensor is a sensor of capacitive type.13. A turbine engine stage according to claim 11 , wherein the plane sensor is circular in shape with a diameter of an order of 30 mm and a thickness of less than 1 mm.14. A turbine engine stage according to claim 11 , wherein the sensor is covered by a layer of abradable material that is about 5 mm to 7 mm thick.15. A turbine engine stage according to claim 11 , wherein at least three of the plane sensors are carried by the casing.16. A turbine engine stage according to claim 15 , wherein a first plane sensor of the three plane sensors is arranged in a lateral position claim 15 , the other two plane sensors being positioned symmetrically on the casing on either side of the first plane sensor.17. A turbine engine stage according to claim 16 , wherein the other two plane sensors are arranged in a top position and a bottom position on the casing.18. A turbine engine stage according to claim 11 , wherein the casing includes at least one orifice for passing a cable for connection to the sensor claim 11 , the orifice being positioned axially outside a zone in which the blades rotate.19. A turbine engine stage ...

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Номер записи: 75
21-11-2013 дата публикации

PROXIMITY SENSOR SYSTEM

Номер: US20130311130A1
Автор: Horton Thomas John, Manning Paul Antony
Принадлежит:

A sensor system includes a sensor and processing means adapted to process the signals from the sensor, and to provide a distance measurement or estimate from the sensor to a metallic object of interest, such as a turbine blade. The sensor, typically an eddy current sensor, provides a signal to which the processing means fits a curve, and parameters including pulse width and height are taken from the fitted curve and used in calculating the distance measurement or estimate. Look-up tables may be used to produce the measurement or estimate. Average values of the parameters may calculated to reduce random noise effects and may be subsequently used to produce correction factors to correct instantaneous measurements. 1. A proximity sensor system comprising a transducer for detecting proximity to an object , a receiver for receiving a signal from the transducer , and a processor for processing the received signal , the processor being adapted to extract , from the received signal , a signal having a form related to the proximity of the object to the transducer , wherein the processor is arranged to fit a curve to the extracted signal , the curve being chosen to approximate to a form of the signal , and to extract parameters pertaining to a width measurement and a height measurement from the fitted curve , with the parameters providing an indication as to the proximity distance of the object to the transducer.2. A system as claimed in wherein the curve is fitted to the signal using a least squares fit.3. A system as claimed in wherein the parameter to be extracted is the width of the curve at a predetermined height of the curve.4. A system as claimed in wherein a further parameter to be extracted includes the position of the peak centre of the curve.5. A system as claimed in wherein claim 1 , where the width measurement has units of time claim 1 , the processor is adapted to measure a speed of the object claim 1 , and to use the speed to convert the width measurement to ...

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Номер записи: 76
28-11-2013 дата публикации

Wireless sensors, detection methods, and systems

Номер: US20130312533A1
Автор: Emad Andarawis Andarawis, Ertugrul Berkcan
Принадлежит: General Electric Co

A wireless sensor including a resistive element, a modulating element located on a rotating component and at least one of a transmitting element and a receiving element, wirelessly coupled to the modulating element. The modulating element is configured to modulate the wireless coupling, between the at least one of a transmitting element and a receiving element, in response to a change in resistance in the resistive element. The modulation of the wireless coupling is indicative of a measurand on the rotating component. A method of detecting a measurand in a rotating component of a rotary machine includes wirelessly coupling at least one of a transmitting element and a receiving element to a modulating element; modulating the wireless coupling with the modulating element located on the rotating component; and calculating the measurand in the rotating component based on the modulation of the wireless coupling.

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Номер записи: 77
28-11-2013 дата публикации

NON-DIFFERENTIAL ELASTOMER CURVATURE SENSOR

Номер: US20130312541A1
Автор: Kramer Rebecca K., Majidi Carmel, Wood Robert J.
Принадлежит: President and Fellows of Harvard College

A hyperelastic, soft microfluidic film measures bending curvature using a novel non-differential mechanism. Disclosed embodiments of the elastomer-based solution allows for curvature sensing directly on a bending plane and thus eliminates limitations imposed by strain gauge factor (GF) and sensor thickness (Z). Due to soft lithography microfabrication and design methods the disclosed curvature sensors are elastically soft (modulus 0.1-1 MPa) and stretchable (100-1000% strain). In contrast to existing curvature sensors that measure differential strain, embodiments of the present invention measures curvature directly and allows for arbitrary gauge factor and film thickness. Moreover, the sensor is composed entirely of soft elastomer (PDMS or Ecoflex® and conductive liquid (eutectic gallium indium, (eGaIn)) and thus remains functional even when stretched to several times its natural length. Electrical resistance in the embedded eGaIn microchannel is measured as a function of bending curvature for a variety of sensor designs. 1. A method of determining a measure of curvature applied to a curvature sensor , the curvature sensor including a conductive fluid filling a channel embedded in the curvature sensor , the method comprising: measuring at a first time the electric resistance of the conductive fluid;', 'measuring at a second time the electric resistance of the conductive fluid;', 'determining a relative change in the electrical resistance of the channel; and', 'determining the change in curvature as a function of the change in electrical resistance., 'measuring a change in curvature along a bending plane of the curvature sensor by2. A method according to wherein the curvature sensor further includes a strut and bending the curvature sensor causes the strut to apply pressure on the conductive liquid filling the channel.3. A method according to wherein the strut is wider than the channel and the change in curvature is proportional to the change in the electrical ...

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Номер записи: 78
28-11-2013 дата публикации

Retractable Assembly

Номер: US20130314076A1
Автор: Lohmann Martin, Robl Stefan, Schlereth Rainer, Torres Alejandro Vaca
Принадлежит: Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG

A retractable assembly for immersion-, flow- and annex-measuring systems in analytical process technology for measuring at least one measured variable of a medium in a process containment, comprising an essentially cylindrical housing having a housing interior; an immersion tube, which is axially movable between a retracted service position in the housing and a process position extended from the housing. In the service position, the immersion tube is positioned in the housing interior; a closure element on an end region of the immersion tube facing the medium for sealing off the housing interior from the process containment when the immersion tube is located in the service position, and a proximity detector in or on the end region of the housing facing the medium for detecting the closure element in the service position. 113-. (canceled)14. A retractable assembly for immersion- , flow- and annex-measuring systems in analytical process technology for measuring at least one measured variable of a medium in a process containment , comprising:an essentially cylindrical housing having a housing interior;an immersion tube, which is axially movable between a retracted service position in said housing and a process position extended from said housing, in the service position, said immersion tube is positioned in said housing interior;a closure element on an end region of said immersion tube facing the medium for sealing off said housing interior from the process containment when said immersion tube is located in the service position; anda proximity detector in or on the end region of said housing facing the medium for detecting said closure element in the service position.15. The retractable assembly as claimed in claim 14 , wherein:said proximity detector is a magnetic proximity switch, and said closure element has a permanent magnet.16. The retractable assembly as claimed in claim 15 , wherein:said magnetic proximity switch is a reed contact.17. The retractable assembly ...

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Номер записи: 79
28-11-2013 дата публикации

DISPLACEMENT MEASUREMENT DEVICE

Номер: US20130314077A1
Автор: Niwa Masahisa, Okada Kunitaka
Принадлежит: Panasonic Corporation

The displacement measurement device according to the present invention includes: a metal object movable in a moving direction within a moving plane; a measurement coil arranged such that an opposite area of a measurement coil surface opposite to the moving plane is varied with a movement of the metal object; and a correction coil arranged such that an opposite area of a correction coil surface to the moving plane is not varied irrespective of the movement of the metal object. The measurement coil and the correction coil are arranged such that the measurement coil surface and the correction coil surface are not overlapped with each other with regard to a plane parallel to the moving plane but a range occupied by the measurement coil in a coordinate axis along the moving direction and a range occupied by the correction coil in the coordinate axis are overlapped with each other. 1. A displacement measurement device comprising:a metal object arranged movable in a predetermined moving direction within a predetermined moving plane;a measurement coil having a measurement coil surface opposite to the moving plane and arranged such that an opposite area of the measurement coil surface to the moving plane is varied with a movement of the metal object;a correction coil having a correction coil surface opposite to the moving plane and arranged such that an opposite area of the correction coil surface to the moving plane is not varied irrespective of the movement of the metal object;an inductance detection circuit configured to measure respective inductances of the measurement coil and the correction coil; anda calculation circuit configured to create a displacement signal according to a relative position of the metal object relative to the measurement coil by use of a measurement result from the inductance detection circuit, 'the measurement coil and the correction coil are arranged such that the measurement coil surface and the correction coil surface are not overlapped with ...

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Номер записи: 80
28-11-2013 дата публикации

Integrated Micro Actuator and LVDT for High Precision Position Measurements

Номер: US20130314078A1
Автор: Bocek Dan, Cleveland Jason, Klonowski Matthew, Longmire Matthew, Proksch Roger
Принадлежит:

A single housing with a non-ferromagnetic piezo-driven flexure has primary and secondary coil forms of different diameters, one coaxially inside the other, integrated in the flexure. The cylinders defining the planes of the primary and secondaries do not spatially overlap. The secondary coil forms may be wound in opposite directions and wired to provide a transformer device. Movement of the primary relative to the secondaries in the direction of the central axis of the coils can be differentially detected with high precision. 1. An LVDT assembly , comprising:a housing;a primary coil, wound on a first surface of said housing, along a central axis of said housing;a secondary coil, having first and second parts, said secondary coil wound on a second surface of said housing, along said central axis, coaxially to said primary coil, but located so that said primary coil and said secondary coil moves along said axis, relative to one another in a substantially parallel direction;a first electrical connection to said primary coil, extending through said housing; anda second electrical connection to said secondary coil, extending through said housing.2. An LVDT as in claim 1 , wherein said first part of said secondary coil is separated from said primary coil in a first direction along said axis and said second part of said secondary coil is separated from said primary coil in a second direction opposite to said first direction along said axis.3. An LVDT as in claim 1 , wherein said first and second parts of a secondary coil are wound on different respective surfaces.4. An LVDT as in claim 1 , wherein said first electrical connection comprises a conduit formed in said housing.5. An LVDT as in claim 1 , further comprising at least one signal generator structure claim 1 , connected to at least one of said coils.6. An LVDT as in claim 1 , wherein said housing is substantially cylindrical in its outer shape.7. An LVDT as in claim 6 , wherein said housing has a top surface that is ...

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Номер записи: 81
05-12-2013 дата публикации

METHOD FOR CONTROLLING THE CLEARANCE AT THE TIPS OF BLADES OF A TURBINE ROTOR

Номер: US20130323016A1
Автор: Bonneau Damien, GAULLY Bruno Robert, JAVELOT Christophe, Olivier Amaury
Принадлежит: SNECMA

A method controlling a clearance between tips of blades of a turbine rotor of a gas turbine aircraft engine and a ring-shaped turbine shroud of a housing surrounding the blades, the method including: controlling flow and/or temperature of air directed toward the housing according to an estimate of the clearance, the estimate of the clearance is determined upon start-up of the aircraft engine, according to a temperature measured by a temperature sensor including a sensitive element positioned in a free space of the aircraft engine. 15-. (canceled)6. A method for controlling clearance between tips of blades of a turbine rotor of a gas turbine aircraft engine and a ring-shaped turbine shroud of a housing surrounding the blades , the method comprising:controlling a flow rate and/or a temperature of air directed towards the housing according to an estimation of the clearance,wherein the estimation of the clearance is determined, upon starting of the aircraft engine, according to a temperature measured by a temperature sensor including a sensitive element laid out in a free space of the aircraft engine.7. The method according to claim 6 , wherein the temperature sensor is a sensor configured to operate by suction after the starting of the aircraft engine to measure the temperature of an airflow in a vein of the aircraft engine.8. The method according to claim 6 , further comprising:determining a stoppage period of the aircraft engine according to the temperature and a model of time dependent change of the temperature over time during a standstill of the aircraft engine on the ground;determining a thermal state of the aircraft engine upon starting, according to the determined stoppage period; anddetermining the estimation of the clearance according to the determined thermal state.9. A control unit configured to control clearance between tips of blades of a turbine rotor of a gas turbine aircraft engine and a ring-shaped turbine shroud of a housing surrounding the blades ...

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Номер записи: 82
12-12-2013 дата публикации

METHOD AND POSITION DETECTION APPARATUS FOR DETECTING A POSITION OF A MOVABLE ELEMENT OF A DRIVE APPARATUS

Номер: US20130328516A1
Автор: ACHTERBERG Jan, Bade Jan-Hendrik, Bettenworth Manuel, Kaulmann Tim, Prüssmeier Uwe
Принадлежит: Beckhoff Automation GmbH

A method for detecting a position of a movable element of a drive apparatus by means of a position detection apparatus comprising at least one field coil and at least one secondary coil associated with the field coil, wherein an electrical excitation pulse is applied to the field coil in order to induce an electrical voltage in the secondary coil, a secondary coil voltage is measured and the position of the movable element is determined on the basis of the measured secondary coil voltage. The invention also relates to a position detection apparatus and/or a drive apparatus. 1. A method for detecting a position of a movable element of a drive apparatus by means of a position detection apparatus comprising at least one excitation coil and at least one secondary coil assigned to the excitation coil , the method comprising the steps of applying an electrical excitation pulse to the excitation coil in order to induce an electrical voltage in the secondary coil , measuring a secondary coil voltage , and determining the position of the movable element on the basis of the measured secondary coil voltage.2. The method as claimed in claim 1 , wherein the measured secondary coil voltage is sampled and digitized for digital further processing.3. The method as claimed in claim 1 , wherein the excitation pulse has an amplitude that decreases over time.4. The method as claimed in claim 3 , wherein the excitation pulse has a sinusoidal oscillation that decays over time.5. The method as claimed in claim 1 , wherein the position detection apparatus has two excitation coils arranged adjacently claim 1 , the excitation pulse being applied to each of said excitation coils with a temporal offset.6. A position detection apparatus for detecting a position of a movable element of a drive apparatus claim 1 , comprising at least one excitation coil and at least one secondary coil assigned to the excitation coil claim 1 , wherein a pulse generator for applying an electrical excitation pulse to ...

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Номер записи: 83
12-12-2013 дата публикации

MAGNETIC SENSOR ARRANGEMENT

Номер: US20130328550A1
Автор: Sebastiano Fabio, VAN VELDHOVEN Robert Hendrikus Margaretha
Принадлежит: NXP B.V.

A magnetic sensor arrangement for determining information indicative of characteristics of a mechanical component has a first magnetic sensor to sense a signal associated with a periodic changing magnetic field generated by relative movement of the mechanical component and the magnetic sensor arrangement, a second magnetic sensor to sense that signal, wherein the first sensor is arranged a fixed distance from the second sensor, and a determination unit coupled to the first and second sensors to receive output signals of the first and second sensors. The output signal of the first sensor is phase-shifted to the output signal of the second sensor, to compare the output signals for determining the absolute phase of the signal associated with the periodic changing magnetic field, and to determine information indicative of characteristics of the mechanical component based on the determined absolute phase of the signal associated with the periodic changing magnetic field. 1. A magnetic sensor arrangement for determining information indicative of characteristics of a mechanical component ,the magnetic sensor arrangement comprisinga first magnetic sensor configured to sense a signal associated with a periodic changing magnetic field generated due to a relative movement of the mechanical component in relation to the magnetic sensor arrangement,a second magnetic sensor configured to sense the signal associated with the periodic changing magnetic field, wherein the first magnetic sensor is arranged at a fixed distance to the second magnetic sensor, anda determination unit coupled to the first magnetic sensor and the second magnetic sensor and being configuredto receive the output signal of the first magnetic sensor and the output signal of the second magnetic sensor, wherein the output signal of the first magnetic sensor is phase-shifted to the output signal of the second magnetic sensor,to compare the output signals for determining the absolute phase of the signal associated ...

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Номер записи: 84
12-12-2013 дата публикации

APPARATUS FOR DETERMINING THE POSITION OF THE ROTOR OF AN ELECTRICAL MACHINE

Номер: US20130328551A1
Автор: Strothmann Rolf
Принадлежит:

An apparatus for determining the position of the rotor of an electric machine in relation to the stator, wherein the electric machine has at least three winding phases, which each have at least one pole winding with a magnetizable core, with devices for detecting a measurement signal. The instantaneous degrees of magnetization of the pole winding cores influenced by the magnetic field of the rotor, depend on the position of the rotor. The devices for detecting the measurement signal for tapping off the measurement signal are provided exclusively outside the electric machine at connecting conductors used for energizing the electric machine. Preferably, switching devices for temporarily isolating at least one of the connecting conductors from an operating voltage source are provided, wherein the measurement signal can be tapped off at the connecting conductor which has been isolated from the operating voltage source. 18-. (canceled)9. An apparatus for determining a position of a rotor of an electrical machine in relation to a stator , comprising: at least three phase strands arranged in the electrical machine which each include at least one pole winding with a magnetizable core; and devices for determining a measurement signal which is determined by current degrees of magnetization of the pole winding cores which depend on the position of the rotor , wherein the devices for determining the measurement signals , for picking up the measurement signals , are provided exclusively outside of the electrical machine at connecting conductors serving for supplying current to the electrical machine.10. The apparatus according to claim 9 , wherein the phase strands are switched in a star configuration.11. The apparatus according to claim 9 , wherein the phase strands are switched in a triangular configuration12. The apparatus according to claim 9 , wherein the switching devices are provided for temporarily separating at least one of the connecting conductors from an operating ...

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Номер записи: 85
26-12-2013 дата публикации

NON-CONTACT SENSOR AND SHIFT LEVER DEVICE

Номер: US20130340557A1
Автор: IWATA Masayoshi
Принадлежит:

A non-contact sensor includes a substrate having a groove, two pattern coils arranged on opposite sides of the groove, a detected object connected to the shift lever and moved in cooperation with the shift lever along the groove, and a signal processing circuit that calculates a movement amount of the shift lever based on an output value provided from the pattern coils. 1. A non-contact sensor that detects a movement amount of a detection subject , the non-contact sensor comprising:a substrate including a groove;a plurality of pattern coils including two opposing pattern coils arranged on opposite sides of the groove;a detected object connected to the detection subject and moved in cooperation with the detection subject along the groove, wherein movement of the detected object changes a degree of magnetic coupling between the two pattern coils; anda signal processing circuit that calculates a movement amount of the detected object based on an output value provided from the pattern coils.2. The non-contact sensor according to claim 1 , wherein the pattern coils are arranged along the groove.3. The non-contact sensor according to claim 1 , wherein the substrate is a board.4. The non-contact sensor according to claim 3 , wherein the board includes a front surface and a rear surface; each of the pattern coils includesa plurality of front conductive strips formed on the front surface of the board,a plurality of rear conductive strips formed on the rear surface of board, anda plurality of vias formed in the board, wherein each of the vias couple one of the front conductive strips and one of the rear conductive strips; and a plurality of folded portions formed by the coupled ones of the front conductive strips, the vias, and the rear conductive strips.5. A shift lever device comprising:a substrate including a groove;a movable detected object connected to a shift lever and moved in cooperation with the shift lever along the groove;two opposing pattern coils arranged on ...

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Номер записи: 86
26-12-2013 дата публикации

ROTARY INPUT APPARATUS

Номер: US20130342222A1
Автор: Yokoyama Tatsuya
Принадлежит:

In a rotary input apparatus, a stationary ground electrode, a first stationary sensing electrode, and a second stationary sensing electrode are formed on a stationary facing surface of a stationary plate. The first stationary sensing electrode includes first facing portions and a first connecting portion electrically connecting the first facing portions, and the second stationary sensing electrode includes second facing portions and a second connecting portion electrically connecting the second facing portions. Each of the first facing portions has a different phase from that of the corresponding one of the second facing portions in a rotation direction. When a rotary electrode, which is provided on a rotary portion, rotates, an encoded signal of a first phase is obtained between the first stationary sensing electrode and the ground potential, and an encoded signal of a second phase is obtained between the second stationary sensing electrode and the ground potential. 1. A rotary input apparatus comprising:a stationary facing surface;a rotary facing portion facing the stationary facing surface; andan operation portion configured to rotate the rotary facing portion;wherein a stationary electrode having a plurality of facing portions is provided on the stationary facing surface,wherein the rotary facing portion is arranged above the stationary facing surface, the plurality of facing portions being arranged at a certain pitch in a circumferential direction of a circle, the circle being concentric with the center of rotation of the rotary facing portion, andwherein a rotary electrode is provided on a bottom surface of the rotary facing portion, the rotary electrode facing the stationary electrode and being capable of being capacitively coupled with the plurality of facing portions.2. The rotary input apparatus according to claim 1 ,wherein the stationary electrode includes a first stationary sensing electrode and a second stationary sensing electrode formed along ...

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Номер записи: 87
02-01-2014 дата публикации

INDUCTIVE PROXIMITY SENSOR AND METHOD FOR FITTING SAID SENSOR

Номер: US20140002061A1
Автор: Giroud Pierre
Принадлежит: CROUZET AUTOMATISMES

An inductive sensor including a casing in which are positioned: a ferromagnetic core having a U shape, which core includes two external branches and a transverse branch linking the two branches; two detection coils disposed respectively on the external branches of the core; a calibration mechanism positioned between the two external branches of the magnetic core, a longitudinal positioning of the calibration mechanism with respect to an end of the external branches being adjustable; an intermediate fixing piece for fastening the calibration mechanism onto the ferromagnetic core, the intermediate fixing piece being placed forcibly in an opening made in the transverse branch, the calibration mechanism including a threaded zone configured to be screwed into a smooth hole made in the intermediate fixing piece. 18-. (canceled)9. An inductive sensor comprising: a U-shaped ferromagnetic core comprising two outer branches extending in a longitudinal direction and a transverse branch connecting the two branches,', 'two detection coils, arranged one on each of the outer branches of the core and configured to be connected to processing means,', 'calibration means positioned between the two outer branches of the magnetic core, a longitudinal positioning of the calibration means relative to the end of the outer branches being adjustable;, 'a casing includingan intermediate fixing part for fixing the calibration means on the ferromagnetic core;the calibration means comprising a threaded zone configured to screw into a smooth hole formed in the intermediate fixing part so as to be displaced between the outer branches; a first cylindrical zone passing through the ferromagnetic core and comprising a soft end, which is deformable and truncated to be positioned inside the outer branches and to ensure a jamming of the part after the driving of the calibration means into the smooth hole, and', 'a second cylindrical zone positioned outside., 'the intermediate fixing part being placed ...

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Номер записи: 88
09-01-2014 дата публикации

Apparatus for monitoring of brushes, in particular slipring or commutator brushes, on electrical machines

Номер: US20140009142A1
Автор: Lieven Marie Karel Cauwenberghs
Принадлежит: ESDACO BVBA

An apparatus is disclosed for monitoring brushes, such as slipring or commutator brushes, on electrical machines. At least one electronic sensor is configured to be arranged in or on a brush apparatus of an electrical machine. This sensor is measuring the brush position at high speed and high resolution, and characterized in that it receives a brush position signal from the brushes in a contact-less fashion. Data is collected by a central unit which sends the data to a server computer. Client computers can consult data, and real time monitor the status of the machine.

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Номер записи: 89
09-01-2014 дата публикации

Proximity Detection

Номер: US20140009171A1
Автор: Ujvari Daniel Arthur
Принадлежит:

For proximity detection, capacitance of a sensing element to ground is measured as one or more objects move into or out of proximity to the sensing element. 1. A proximity sensor comprising:an antenna, wherein the antenna has a capacitance to ground that is variable as a function of the proximity of an object to the antenna;a sample capacitor connected to the antenna; and supply a charge to the sample capacitor and the antenna;', 'discharge the antenna;', 'in response to the discharge of the antenna, provide a signal indicative of the capacitance to ground of the antenna; and', 'process the signal to detect a change in the capacitance to ground as indicative of the proximity of the object to the antenna., 'control circuitry connected to the sample capacitor, the control circuitry configured to2. The proximity sensor of claim 1 , wherein:the control circuitry comprises three switching elements and an analog comparator,each switching element has a respective open state and a respective closed state,a first of the switching elements is configured to connect the sample capacitor to ground it the closed state,a second of the switching elements is configured in the closed state to connect a voltage source to the sample capacitor at a polarity opposite a polarity of the connection of the first switch element to the sample capacitor and to the comparator,a third of the switching elements configured in the closed state to connect the comparator and sample capacitor to ground, andthe comparator is configured to receive a reference voltage and to compare the reference voltage to the voltage on the sample capacitor.3. The proximity sensor of claim 2 , wherein the control circuitry is configured to discharge the antenna and the sample capacitor when the first and third switching elements are in the closed state and the second switching element is in the open state.4. The proximity sensor of claim 2 , wherein the control circuitry is configured to cause the voltage on the sample ...

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Номер записи: 90
09-01-2014 дата публикации

MOTION DETECTION USING CAPACITOR HAVING DIFFERENT WORK FUNCTION MATERIALS

Номер: US20140009175A1
Автор: HSUEH Fu-Lung, Kalnitsky Alexander
Принадлежит: Taiwan Semiconductor Manufacturing Co., Ltd.

An apparatus for detecting mechanical displacement in a micro-electromechanical system includes a capacitor having first and second plates spaced from one another, the first and second plates having different work functions and being electrically connected with each other. The capacitor plates are movable with respect to one another such that a spacing between the plates changes in response to a force. A current through the capacitor represents a rate of change in the spacing between the plates at a given time. 1. A micro-electromechanical motion sensor for sensing motion of a device to which the sensor is attached , the motion sensor comprising a capacitor having first and second capacitor plates spaced from one another , the first and second plates having different work functions and being directly electrically connected with each other , thereby providing a built-in electric field , wherein the plates are movable with respect to one another such that a spacing between the plates changes in response to a force from motion of the device to which the sensor is attached , a change in the spacing between the plates affecting the built-in electric field such that a current flows through the capacitor , the current being representative of a rate of change in the spacing between the plates at a given time.2. The micro-electromechanical motion sensor of claim 1 , wherein the first and second capacitor plates comprise first and second metal materials having different work functions.3. The micro-electromechanical motion sensor of claim 1 , wherein the first and second capacitor plates comprise first and second semiconductor materials having different work functions.4. The micro-electromechanical motion sensor of claim 3 , wherein the first and second capacitor plates further comprise a conductive contact layer to which the first and second semiconductor materials are coupled.5. The micro-electromechanical motion sensor of claim 1 , wherein the apparatus includes a plurality ...

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Номер записи: 91
16-01-2014 дата публикации

Flow Valve and Method of Manufacturing such a Valve

Номер: US20140015519A1
Автор: Cardoso Christian, Habert Didier, Jean Fabrice, Magalhaes Mickael, Merlet Etienne, Pautard Sebastien
Принадлежит: SAGEM DEFENSE SECURITE

Flow valve comprising a casing () containing an electromagnetic assembly () for detecting a magnetic field, the electromagnetic assembly being fixed to a pendulum () suspended by an articulation () from a wall () of the casing, the casing containing a liquid for damping the movements of the pendulum, characterized in that the pendulum comprises opposite the articulation a surface () which has a spherical cap shape and which extends facing a wall () of the casing of complementary shape, defining a space having, dimensions suitable for producing a laminar rolling of the damping liquid between them, when the pendulum is in motion. 1. A fluxgate comprising a casing containing an electromagnetic assembly for detecting a magnetic field , wherein the electromagnetic assembly is attached to a pendulum suspended from a wall of the casing by an articulation , wherein the casing contains a liquid for damping the movements of the pendulum , wherein the pendulum comprises , at the opposite end from the articulation , a surface which is in the shape of a spherical cap and extends facing a wall of the casing that has a form complementary to the form of the surface , defining a space having suitable dimensions to laminate the damping liquid between the surface and the wall when the pendulum moves.2. The fluxgate as claimed in claim 1 , wherein said surface of the pendulum is bounded by a recessed surface portion in order to facilitate the entry of the damping liquid into the space.3. The fluxgate as claimed in claim 2 , wherein the shape of the recessed surface portion is frustoconical.4. The fluxgate as claimed in claim 1 , wherein said surface of the pendulum features claim 1 , adjacent to its periphery claim 1 , openings through which the damping liquid can escape.5. The fluxgate as claimed in claim 1 , wherein the electromagnetic detection assembly comprises two uniaxial magnetometers arranged perpendicular to one another claim 1 ,6. The fluxgate as claimed in claim 5 , wherein ...

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Номер записи: 92
16-01-2014 дата публикации

OBJECT DETECTION AND ESTIMATION IN RFID SYSTEMS

Номер: US20140015546A1
Автор: Frederick Thomas J.
Принадлежит: CLAIRVOYANT TECHNOLOGY LLC

A radio frequency (RF) object detector is disclosed. The RF object detector in example embodiments transmits an RF signal. A receiver measures the amplitude, the phase, or both the amplitude and phase of the signal as reflected from objects in an interrogation zone. The RF object detector can be deployed in a combined system that performs multiple functions. For example, the RF object detector can be integrated with an EAS system that also sends RFID commands and receives RFID responses. In some embodiments the object detector can discriminate between moving objects and stationary objects, and/or discriminate between objects in the interrogation zone and objects outside the interrogation zone, and/or provide location estimates. An antenna or antennas can be connected in a mono-static or bi-static configuration and the phase and/or amplitude signals can be either DC-coupled or AC-coupled into the system through a mixer. 1. A object detector comprising:a transmitter to transmit an incident radio frequency (RF) signal;a receiver to receive a reflected RF signal; anda processor connected to the transmitter and the receiver, wherein the processor is operable to detect objects by estimating at least one of the amplitude and phase of the reflected RF signal.2. The object detector of further comprising an antenna connected to the transmitter and the receiver.3. The object detector of wherein the antenna further comprises a plurality of antennas.4. The object detector of wherein the processor is further operable to discriminate between moving objects and stationary objects using at least one of phase measurements and amplitude measurements of the reflected RF signal received by the plurality of antennas over time.5. The object detector of wherein the plurality of antennas can be arranged on different sides of an interrogation zone and the processor is operable to use the plurality of antennas when so arranged to discriminate between objects in the interrogation zone and ...

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Номер записи: 93
16-01-2014 дата публикации

SINGLE-POSITION HALL EFFECT MEASUREMENTS

Номер: US20140015552A1
Автор: Hansen Ole, Petersen Dirch Hjorth, WANG FEI
Принадлежит: CAPRES A/S

A method for determining a distance (Y) between a first position on and an electrical boundary () of a test sample by a multi-point probe comprising four contact elements, comprising: contacting the test sample with the four contact elements () at the first position, applying a magnetic field at the first position, performing a first and a second four-point measurement and deriving a first and a second resistance value, calculating a first resistance difference from the first and second resistance values, performing a third and a fourth four-point measurement and deriving a third and a fourth resistance value, calculating a second resistance difference from the third and fourth resistance values, defining a first relation including parameters representing the first resistance difference, the second resistance difference, and the distance between the first position and the electrical boundary, determining the distance by using the first and the second resistance differences in the first relation. 148-. (canceled)49. A method for determining a distance between a first position on an electrically conducting surface portion of a test sample and an electrical boundary of said electrically conducting surface portion by a multi-point probe comprising a first contact element , a second contact element , a third contact element , and a fourth contact element , each contact element defining a contact point for establishing an electrical contact with said test sample , said method comprising:contacting said test sample with said first contact element, said second contact element, said third contact element, and said fourth contact element at said first position on said electrically conducting surface portion;applying a magnetic field having a major field component perpendicular to said electrically conducting surface portion at said first position;applying a first electrical potential across said first and third contact elements for generating a first current in said surface ...

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Номер записи: 94
16-01-2014 дата публикации

Method and device for determining a recognition threshold

Номер: US20140019084A1
Автор: Bernhard Opitz, Eduard Rolew, Verena Schmidt
Принадлежит: ROBERT BOSCH GMBH

A method for determining a recognition threshold for recognizing the presence of a tooth or a tooth gap of a position sensor in front of a sensor is presented. The method includes a step of reading in a sensor signal which represents a variation over time of a measured magnetic field when the teeth and the tooth gaps of the position sensor are passed by the sensor. In addition, the method includes a step of ascertaining from the sensor signal a first value based on a minimum value of the sensor signal and a first value based on a maximum value of the sensor signal within a predefined time interval. The method also includes a step of computing a differential absolute value which represents a predetermined percentage of a difference between the value based on the at least one maximum value and a value based on the at least one minimum value of the sensor signal. Lastly, the method includes a step of determining the recognition threshold, so that the recognition threshold represents a value that corresponds to a result of adding the differential absolute value to the first value based on the minimum value of the sensor signal.

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Номер записи: 95
23-01-2014 дата публикации

ARCHITECTURAL CLOSURE POWERING DEVICE

Номер: US20140020295A1
Автор: Bonahoom Bryan J., Nyamaswa Rodrigue
Принадлежит: Stanley Security Solutions, Inc.

A closure lock has a wireless power coupling. The wireless power coupling is used to determine whether the closure is in an open or closed position. 1. A closure position detector for use with an architectural opening having a perimeter and a closure having an outer perimeter and moveable between an open position and a closed position closing the opening , the closure position detector including:an electronic device supportable by the closure and including a wireless power coupling configured to receive power wirelessly through the perimeter of the closure to power the electronic device; anda closure position monitor monitoring the wireless power coupling to determine the position of the closure.2. The closure position detector of claim 1 , wherein the wireless power coupling is an inductive coupling.3. The closure position detector of claim 1 , wherein the electronic device controls operation of a latch bolt of a lock supported by the closure.4. The closure position detector of claim 3 , wherein the electronic device includes a motor providing mechanical power to control operation of the latch bolt.5. The closure position detector of claim 1 , wherein the closure position monitor is supportable by the closure.6. The closure position detector of claim 1 , wherein the closure position monitor is supportable away from the closure.7. The closure position detector of claim 1 , wherein the electronic device includes a motor positioned to move a component supported by the closure claim 1 , and power from the wireless power coupling powers operation of the motor.8. An architectural opening and closure system including:an architectural opening having a perimeter;a closure having an outer perimeter and being moveable between an open position and a closed position closing the architectural opening; and an electronic device supported by the closure and including a wireless power coupling configured to receive power wirelessly through the perimeter of the architectural opening ...

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Номер записи: 96
23-01-2014 дата публикации

POSITION SENSOR

Номер: US20140020495A1
Автор: IWATA Masayoshi
Принадлежит:

A position sensor that detects operation positions of an operation member includes an element array having three stages, each including one or more detection elements. A detected subject is detected by each detection element in two adjacent upstream and downstream stages to determine an operation position of the operation member. Whenever the operation member is shifted by one operation position, the detected subject is moved relative to the element array by one stage. Each detection element outputs a detection result of the detected subject. The element array includes at least three detection elements of which the detection results change whenever the operation member is shifted by one operation position. A detection element in the upstream side stage detects the detected subject before the operation position shifting, and a detection element in the downstream side stage detects the detected subject after the operation position shifting. 1. A position sensor that detects operation positions of an operation member , the position sensor comprising:an element array including at least three stages, wherein each stage includes one or more detection elements;a detected subject simultaneously detected by each of the detection elements in two adjacent stages of the element array that are an upstream side stage and a downstream side stage to determine one operation position of the operation member, wherein whenever the operation member is shifted by one operation position, the detected subject is moved relative to the element array toward the downstream side by one stage, whereineach of the detection elements of the element array outputs a detection result indicating the presence or absence of the detected subject,the element array includes at least three detection elements of which the detection results change whenever the operation member is shifted by one operation position, andthe at least three detection elements include at least one detection element in the upstream ...

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Номер записи: 97
23-01-2014 дата публикации

METHOD AND APPARATUS FOR CREATING MAGNETIC FIELD MAP BASED ON FLOOR PLAN INFORMATION OF BUILDING

Номер: US20140021942A1
Автор: AHN Hyun Gi, KIM Eung Sun, KIM Seong Eun, Kim Yong, YOON Ji Hyun
Принадлежит:

Provided are a method and an apparatus for creating a magnetic field map that extracts magnetic field information of a building from floor plan information of the building. The magnetic field map of the building may be generated based on the floor plan information and the magnetic field information. 1. A method of creating a magnetic field map , the method comprising:receiving floor plan information of a building;extracting magnetic field information of the building based on the floor plan information of the building; andcreating a magnetic field map of the building based on the floor plan information and the magnetic field information.2. The method of claim 1 , wherein the floor plan information comprises at least one of a position claim 1 , a height claim 1 , a thickness claim 1 , and a size of a steel frame claim 1 , a steel bar claim 1 , and/or piping that is included in the building.3. The method of claim 1 , wherein the extracting the magnetic field information of the building comprises:calculating a magnetic interference with respect to the building based on the floor plan information; andextracting the magnetic field information based on the magnetic interference.4. The method of claim 1 , further comprising:determining a location of a feature point on the magnetic field map based on the floor plan information and the magnetic field information.5. The method of claim 4 , wherein the determining the location of the feature point comprises:setting a position of a section to be measured based on the floor plan information and the magnetic field information;determining an interval and a location at which a sample magnetic field is to be measured with respect to the section; anddetermining the location of the feature point based on the interval and the location at which the sample magnetic field is to be measured.6. The method of claim 4 , wherein the feature point comprises an area in which a change of a magnetic field on the magnetic field map exceeds a ...

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Номер записи: 98
23-01-2014 дата публикации

POSITION MEASUREMENT APPARATUS, POSITION MEASUREMENT METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

Номер: US20140025333A1
Автор: HAYAKAWA Mayumi
Принадлежит: RENESAS MICRO SYSTEMS CO., LTD.

A position measurement apparatus includes a reference value acquisition unit that obtains a plurality of reference geomagnetism information pieces, the plurality of reference geomagnetism information pieces being geomagnetism information pieces measured at a plurality of reference positions, an association information generation unit that generates association information that associates the plurality of reference positions with the plurality of reference geomagnetism information pieces, a measurement value acquisition unit that obtains measurement geomagnetism information, the measurement geomagnetism information being geomagnetism information measured at a measurement position and a position specifying unit that specifies a position corresponding to the measurement geomagnetism information based on association between the plurality of reference positions and the plurality of reference geomagnetism information pieces obtained by the association information. 1. A position measurement apparatus comprising:a reference value acquisition unit that obtains a plurality of reference geomagnetism information pieces, the plurality of reference geomagnetism information pieces being geomagnetism information pieces measured at a plurality of reference positions;an association information generation unit that generates association information that associates the plurality of reference positions with the plurality of reference geomagnetism information pieces;a measurement value acquisition unit that obtains measurement geomagnetism information, the measurement geomagnetism information being geomagnetism information measured at a measurement position; anda position specifying unit that specifies a position corresponding to the measurement geomagnetism information based on association between the plurality of reference positions and the plurality of reference geomagnetism information pieces obtained by the association information.2. The position measurement apparatus according to ...

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Номер записи: 99
23-01-2014 дата публикации

TERMINAL AND SERVER FOR MODIFYING MAGNETIC FIELD AND METHOD THEREOF

Номер: US20140025334A1
Автор: AHN Hyun Gi, KIM Eung Sun, KIM Seong Eun, Kim Yong, YOON Ji Hyun
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A method of estimating a location of a terminal includes measuring a magnetic field value at a location of the terminal, estimating the location of the terminal using the measured magnetic field value, and transmitting the measured magnetic field value and information associated with the estimated location to a server. A method of modifying a magnetic field map includes receiving, from a terminal, a magnetic field value estimated at a location of the terminal, and information associated with a location of the terminal estimated based on the magnetic field value, and modifying a magnetic field map using the measured magnetic field value and the information associated with the estimated location. 1. A method of estimating a location of a terminal , the method comprising:measuring a magnetic field value at a location of a terminal;estimating the location of the terminal using the measured magnetic field value; andtransmitting the measured magnetic field value and information associated with the estimated location to a server.2. The method of claim 1 , wherein the estimating of the location of the terminal comprises estimating the location of the terminal using a magnetic field value corresponding to the location of the terminal on a magnetic field map and the measured magnetic field value.3. The method of claim 2 , further comprising requesting permission to collect the information associated with the estimated location when a difference between the magnetic field value on the magnetic field map and the measured magnetic field value is greater than a predetermined threshold value.4. The method of claim 1 , further comprising determining whether the location of the terminal is estimated correctly based on the information associated with the estimated location.5. The method of claim 4 , wherein the determining of whether the location of the terminal is estimated correctly comprises determining whether the location of the terminal is estimated correctly based on whether a ...

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Номер записи: 100