Настройки

Укажите год
-

Небесная энциклопедия

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 9747. Отображено 100.
08-02-2017 дата публикации

Дефектоскоп

Номер: RU0000168551U1
Автор: Константин Константинович Ким, Тамила Семёновна Титова
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "Петербургский государственный университет путей сообщения Императора Александра I"

Использование: для определения степени ржавости железной арматуры железобетонных опор контактной сети электрических железных дорог. Сущность полезной модели заключается в том, что дефектоскоп содержит источник питания, выходы которого соединены с силовыми входами измерителя емкости с индикатором, измерительные входы измерителя емкости электрически соединены с электродами, которые выполнены полыми и заполнены металлическим порошком, внутренние стенки электродов изготовлены из эластичного материала, а наружные стенки выполнены из электропроводящего материала, к измерительным входам измерителя емкости подключен терменвокс. Технический результат: обеспечение возможности быстрого определения места наиболее близкого залегания железной арматуры. 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 168 551 U1 (51) МПК G01N 27/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21)(22) Заявка: 2016139202, 05.10.2016 (24) Дата начала отсчета срока действия патента: 05.10.2016 (72) Автор(ы): Ким Константин Константинович (RU), Титова Тамила Семеновна (RU) 08.02.2017 Приоритет(ы): (22) Дата подачи заявки: 05.10.2016 Адрес для переписки: 190031, Санкт-Петербург, Московский пр., 9, ФГБОУ ВО ПГУПС, Патентный отдел 1 6 8 5 5 1 R U (57) Формула полезной модели Дефектоскоп, содержащий источник питания, выходы которого соединены с силовыми входами измерителя емкости с индикатором, измерительные входы измерителя емкости электрически соединены с электродами, которые выполнены полыми и заполнены металлическим порошком, внутренние стенки электродов изготовлены из эластичного материала, а наружные стенки выполнены из электропроводящего материала, отличающийся тем, что к измерительным входам измерителя емкости подключен терменвокс. Стр.: 1 U 1 U 1 (54) ДЕФЕКТОСКОП 1 6 8 5 5 1 (45) Опубликовано: 08.02.2017 Бюл. № 4 R U (73) Патентообладатель(и): Федеральное государственное бюджетное образовательное учреждение высшего ...

Подробнее
Номер записи: 1
29-03-2018 дата публикации

Устройство контроля технических масел и нефтепродуктов

Номер: RU0000178297U1
Автор: Андрей Владиславович Лаптев, Владимир Петрович Жуйков
Принадлежит: Закрытое акционерное общество "Интера"

Устройство относится к измерительной технике, в частности, к измерительным приборам для анализа и контроля технических масел и нефтепродуктов, в частности, содержания в них водорода и влаги. Предложено устройство контроля технических масел и нефтепродуктов, содержащее измерительный зонд в виде трубки с отверстиями на одном конце для обеспечения подачи контролируемого трансформаторного масла к размещенному на измерительной плате в зонде емкостному датчику, снабженному измерителем температуры, и контроллер, который размещен в корпусе, соединенным с другим концом зонда, и снабжен разъемами для соединения с интерфейсными и сигнальными кабелями. Причем контроллер соединен электрически с емкостным датчиком, в который введен нагревательный элемент, соединенный с контроллером, выполненным с возможностью управления нагревательным элементом по данным от измерителя температуры, а также одновременной фиксации в интервале измерений текущей температуры и показаний емкостного датчика с усреднением полученных результатов. Технический результат - расширение арсенала технических средств для контроля содержания водорода в технических маслах и нефтепродуктах с одновременным повышением точности контроля. 3 з.п.ф., 2 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 178 297 U1 (51) МПК G01N 27/22 (2006.01) G01N 33/28 (2006.01) H05B 1/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01N 27/22 (2006.01); G01N 27/223 (2006.01); G01N 33/28 (2006.01); G01N 33/2805 (2006.01); H05B 1/0227 (2006.01) (21)(22) Заявка: 2017142258, 05.12.2017 05.12.2017 (73) Патентообладатель(и): Закрытое акционерное общество "Интера" (RU) Дата регистрации: 29.03.2018 (56) Список документов, цитированных в отчете о поиске: RU 26134 U1, 10.11.2002. RU (45) Опубликовано: 29.03.2018 Бюл. № 10 1 7 8 2 9 7 R U (54) Устройство контроля технических масел и нефтепродуктов (57) Реферат: Устройство относится к измерительной кабелями. Причем контроллер соединен ...

Подробнее
Номер записи: 2
30-01-2019 дата публикации

Емкостной датчик влажности грунта

Номер: RU0000186702U1
Автор: Анатолий Иванович Прокопьев
Принадлежит: Анатолий Иванович Прокопьев

Полезная модель относится к исследованию или анализу материалов с помощью электрических средств, в частности, путем измерения электрической емкости и может быть использована в дешевых системах мониторинга грунта. Емкостной датчик влажности грунта, выполненный в виде гребенчатого конденсатора, состоящего из чередующих проводящих полос с зазорами между ними, расположенного с двух сторон диэлектрической подложки с диэлектрическим покрытием, выполненным по технологии многослойных печатных плат. Предложены обоснования конструктивного исполнения датчика. По п. 2 формулы предлагается использование нескольких аналогичных независимых емкостных датчиков, распределенных по глубине измерения на общей подложке и с единым покрытием. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 186 702 U1 (51) МПК G01N 33/24 (2006.01) G01N 27/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01N 33/24 (2006.01); G01N 27/22 (2006.01) (21)(22) Заявка: 2017128407, 08.08.2017 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Прокопьев Анатолий Иванович (RU) Дата регистрации: 30.01.2019 (56) Список документов, цитированных в отчете о поиске: RU 2296318 C1, 27.03.2007. RU 2206887 C2, 20.06.2003. RU 2537908 C2, 10.01.2015. SU 1032398 A, 30.07.1983. US 6842018 B2, 11.01.2005. US 2008/0199359 A1, 21.08.2008. CN 105492897 A, 13.04.2016. (45) Опубликовано: 30.01.2019 Бюл. № 4 R U (54) ЕМКОСТНОЙ ДАТЧИК ВЛАЖНОСТИ ГРУНТА (57) Реферат: Полезная модель относится к исследованию сторон диэлектрической подложки с или анализу материалов с помощью диэлектрическим покрытием, выполненным по электрических средств, в частности, путем технологии многослойных печатных плат. измерения электрической емкости и может быть Предложены обоснования конструктивного использована в дешевых системах мониторинга исполнения датчика. По п. 2 формулы грунта. Емкостной датчик влажности грунта, предлагается использование нескольких выполненный в виде ...

Подробнее
Номер записи: 3
16-07-2019 дата публикации

Сорбционно-емкостной чувствительный элемент влажности газа

Номер: RU0000190945U1
Автор: Сергей Олегович Михин
Принадлежит: Общество с ограниченной ответственностью "Газпром трансгаз Ухта"

Использование: для измерений влажности и температуры точки росы по воде. Сущность изобретения заключается в том, что сорбционно-емкостной чувствительный элемент влажности газа характеризуется тем, что представляет собой конденсатор переменной емкости, состоящий из диэлектрического сорбирующего слоя и электродов, пропускающих влагу, где диэлектрический сорбирующий слой выполнен из пористой керамики и заключен между двумя перфорированными электродами, выполненными из коррозионностойкого металла, нанесенными при температурах, близких к температурам плавления металла. Технический результат: обеспечение возможности производить измерения в агрессивных средах в широком диапазоне температур и давлений. 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 190 945 U1 (51) МПК G01N 27/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01N 27/22 (2019.02) (21)(22) Заявка: 2018142157, 29.11.2018 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Общество с ограниченной ответственностью "Газпром трансгаз Ухта" (RU) Дата регистрации: 16.07.2019 (45) Опубликовано: 16.07.2019 Бюл. № 20 1 9 0 9 4 5 R U (54) СОРБЦИОННО-ЕМКОСТНОЙ ЧУВСТВИТЕЛЬНЫЙ ЭЛЕМЕНТ ВЛАЖНОСТИ ГАЗА (57) Реферат: Использование: для измерений влажности и из пористой керамики и заключен между двумя температуры точки росы по воде. Сущность перфорированными электродами, выполненными изобретения заключается в том, что сорбционноиз коррозионностойкого металла, нанесенными емкостной чувствительный элемент влажности при температурах, близких к температурам газа характеризуется тем, что представляет собой плавления металла. Технический результат: конденсатор переменной емкости, состоящий из обеспечение возможности производить измерения диэлектрического сорбирующего слоя и в агрессивных средах в широком диапазоне электродов, пропускающих влагу, где температур и давлений. 1 ил. диэлектрический сорбирующий слой выполнен Стр.: 1 U 1 U 1 Адрес для ...

Подробнее
Номер записи: 4
22-11-2021 дата публикации

Измерительная установка для определения влажности и примесей сельскохозяйственных продуктов

Номер: RU0000207872U1
Автор: Игорь Николаевич Воротников, Максим Алексеевич Мастепаненко, Станислав Вадимович Мишуков, Шалико Жораевич Габриелян
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования «Ставропольский государственный аграрный университет»

Полезная модель относится к контрольно-измерительной технике, в частности к устройствам влагометрии, и может быть использована для определения влажности сельскохозяйственных продуктов, например семян зерновых, бобовых и масличных культур, в технологическом процессе их уборки, хранения и переработки.Технический результат, достигаемый заявляемой полезной моделью, заключается в повышении надежности электрических измерений влажности и примесей сельскохозяйственных продуктов и расширении функциональных возможностей измерительных установок.Технический результат достигается тем, что измерительная установка для определения влажности и примесей сельскохозяйственных продуктов содержит корпус, первичный измерительный преобразователь с внутренними электродами, микропроцессор, АЦП, операционный усилитель, жидкокристаллический дисплей, пружинные и винтовые клеммные соединения, кнопочный модуль, разъем для подключения внешнего источника питания, причем корпус устройства имеет пять отсеков для установки первичных измерительных преобразователей, при этом каждый первичный измерительный преобразователь выполнен в виде алюминиевого контейнера, являющегося внешним электродом, в котором расположены внутренние электроды, подключенные к операционному усилителю, вход которого соединен отрицательной обратной связью через блок опорных элементов с выходом, который подключен к АЦП и далее к микропроцессору, при этом питание установки дополнительно обеспечено съёмной аккумуляторной батареей.Технический результат достигается тем, что корпус устройства изготовлен из органического стекла методом воздушно-термической обработки. 1 з.п. ф-лы, 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 207 872 U1 (51) МПК G01N 27/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01N 27/223 (2021.08); G01N 27/22 (2021.08) (21)(22) Заявка: 2021125330, 27.08.2021 (24) Дата начала отсчета срока действия патента: Дата регистрации: 22.11.2021 (45) ...

Подробнее
Номер записи: 5
17-05-2012 дата публикации

Sealing assembly with integral sensor

Номер: US20120119448A1
Автор: Eric J. Banks, Kevin M. Pascal, Shelby F. Stewart, Shonda Peters
Принадлежит: Individual

A sealing assembly is equipped with life-sensing means in terms of wear ( 12 a, 12 b ), thermal degradation, physical damage, chemical incompatibility and structural breakdowns within the sealing assembly, and means ( 22 a, b ) for transmitting an output of the sensing means to detect a change in the sealing environment or an impending seal failure.

Подробнее
Номер записи: 6
14-06-2012 дата публикации

Method and Apparatus for Measuring the Grain Angle of a Round Wood Object

Номер: US20120146617A1
Автор: Harry E. Moore, James D. Logan, Ryan D. Baldwin
Принадлежит: METRIGUARD INC

This invention provides a method and apparatus for determining the grain angle of a wood object which has a circular cross section of constant or varying radius along the object's length. This apparatus may be hand-held or fixed mounted as testing circumstances dictate. The resulting grain angle may be displayed in real time, as perceived by the user, or transmitted to a processing unit for data collection or interpretation.

Подробнее
Номер записи: 7
13-09-2012 дата публикации

Mobile phone

Номер: US20120231841A1
Автор: Dominik Niederberger, Johannes Schumm, Markus Graf, Pascal Gerner
Принадлежит: SENSIRION AG

A mobile phone comprises a casing and a cavity in the casing. A humidity sensor is arranged for measuring a humidity in the cavity. In response to a trigger, a control unit analyzes a humidity signal supplied by the humidity sensor. A result of the analysis is presented via an output unit. Such device allows for measuring a humidity of a user's skin in case the user covers a window in the casing connected to the cavity by a body part.

Подробнее
Номер записи: 8
20-09-2012 дата публикации

Sensor device

Номер: US20120234078A1
Автор: Peter Hagl
Принадлежит: Peter Hagl

A sensor device determines an amount of liquid contained or stored in an object to be tested. The sensor device contains at least one heating element and at least one humidity sensor. When operated, the sensor device defines at least one volume which can be sealed off by placing the device on the surface of the object to be tested. The heating element is configured to heat at least part of a surface of the object delimiting the volume, the humidity sensor measuring the humidity in the interior of the volume.

Подробнее
Номер записи: 9
20-09-2012 дата публикации

Method and device for rapid non-destructive quality control of powdered materials

Номер: US20120235692A1
Автор: Bary Wilson, Dmytro Sivtsov, Elena M. Shembel, Oxana Redko, Tymofiy Pastushkin, Volodymyr I. Redko, Volodymyr S. Khandetskyy
Принадлежит: Enerize Inc

A method of non-destructive testing for quality control of powdered materials having dielectric properties based on the use of electromagnetic capacitance techniques.

Подробнее
Номер записи: 10
04-10-2012 дата публикации

Rapid response relative humidity sensor using anodic aluminum oxide film

Номер: US20120247203A1
Автор: Chun Zhang, Jianying Miao, Ning Wang
Принадлежит: Nano and Advanced Materials Institute Ltd

A rapid response relative humidity sensor based on nano-structured aluminum oxide thin film is disclosed. The main body of the sensor is an anodic aluminum oxide thin film of about 2-20 μm thick formed from an Al substrate which serves as one electrode. A porous metal layer of about 20-200 nm thick is formed over the anodic aluminum oxide thin film and functions as a second electrode. The alumina thin film contains nano-sized channels of about 10-100 nm in diameter, serving as a capacitive relative humidity sensor having high sensitivity and short response time. Thermal annealing at elevated temperature improves the linearity of the capacitance versus humidity curve, giving a full range humidity sensing range. Hysteresis and degradation are negligible for the humidity sensors.

Подробнее
Номер записи: 11
11-10-2012 дата публикации

Integrated cmos porous sensor

Номер: US20120256236A1
Автор: Timothy Cummins
Принадлежит: ChipSensors Ltd

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

Подробнее
Номер записи: 12
11-10-2012 дата публикации

Capacitive sensor, integrated circuit, electronic device and method

Номер: US20120256645A1
Автор: Axel Nackaerts, Pascal Bancken, Roel Daamen, Viet Hoang Nguyen
Принадлежит: NXP BV

A sensor for sensing an analyte includes capacitive elements, each having a pair of electrodes separated by a dielectric wherein the dielectric constant of the dielectric of at least one of the capacitive elements is sensitive to the analyte, the sensor further including a comparator adapted to compare a selected set of capacitive elements against a reference signal and to generate a comparison result signal, and a controller for iteratively selecting the set in response to the comparison result signal, wherein the sensor is arranged to produce a digitized output signal indicative of the sensed level of the analyte of interest. An IC comprising such a sensor, an electronic device comprising such an IC and a method of determining a level of an analyte of interest using such a sensor are also disclosed.

Подробнее
Номер записи: 13
01-11-2012 дата публикации

Analysis of drilling cuttings for permittivity

Номер: US20120273273A1
Автор: Andrew Clarke, Gerald Henry Meeten, Mohammed Badri, Patrice Ligneul, Tianhua Zhang, Valerie Judith Anderson
Принадлежит: Schlumberger Technology Corp

Systems and methods for analysis of drilling cuttings are described. Complex permittivity is measured of rock cutting samples obtained during drilling operations. The origin of the cuttings is known by flow rate analysis in the drilling system. Various means can be used for rock cutting dielectric measurement. For example, the dielectric measurement can be made by matching the unknown permittivity of the medium to be analyzed to the permittivity of known liquid mixtures by successive saturation and looking for a “zero-contrast” measurement.

Подробнее
Номер записи: 14
24-01-2013 дата публикации

Moisture sensor and/or defogger with bayesian improvements, and related methods

Номер: US20130024169A1
Автор: Vijayen S. Veerasamy
Принадлежит: Guardian Industries Corp

In certain example embodiments, moisture sensors, defoggers, etc., and/or related methods, are provided. More particularly, certain example embodiments relate to moisture sensors and/or defoggers that may be used in various applications such as, for example, refrigerator/freezer merchandisers, vehicle windows, building windows, etc. When condensation or moisture is detected, an appropriate action may be taken (e.g., actuating windshield wipers, turning on a defroster, triggering the heating of a merchandiser door or window, etc.). Bayesian approaches optionally may be implemented in certain example embodiments in an attempt to improve moisture detection accuracy. For instance, models of various types of disturbances may be developed and, based on live data and a priori information known about the model, a probability of the model being accurate is calculated. If a threshold value is met, the model may be considered a match and, optionally, a corresponding appropriate action may be taken.

Подробнее
Номер записи: 15
07-02-2013 дата публикации

Detection Method for Sensor Membrane of EuTixOy as Part of a Biosensor by Using PNIPAAm for Wrapping Enzymes

Номер: US20130032492A1
Автор: Chao-Wen Lin, Kung-Yuan Chang, Min-Hsien Wu, Shiao-Wen Tsai, Tung-Ming Pan
Принадлежит: Chang Gung University CGU

A detection method for a sensor membrane formed of EuTi x O y as part of a biosensor by using PNIPAAm for wrapping enzymes is provided with adding 1.0 g of NIPAAm powder to 20 ml water, heating same at 60° C. to form NIPAAm solution, and cooling the NIPAAm solution; adding 200 μl of 98.7 wt % of APS and 50 μl of 99 wt % of TEMED to the NIPAAm solution, uniformly mixing same, and reacting the mixture for 30 hours to prepare a transparent, gel PNIPAAm; adding 5 mg enzymes to 100 μl of 1× PBS buffer solution, uniformly mixing same, adding 100 μl of PNIPAAm to the buffer solution, and uniformly mixing the buffer solution; placing a biosensor on a heater for heating at a constant temperature of 37° C. wherein the biosensor is an EIS sensor having a sensor membrane formed of EuTi x O y ; and taking a measurement.

Подробнее
Номер записи: 16
07-02-2013 дата публикации

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

Номер: US20130032902A1
Автор: Matthias Merz
Принадлежит: NXP BV

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

Подробнее
Номер записи: 17
14-03-2013 дата публикации

APPARATUSES AND SYSTEMS FOR DENSITY GAUGE CALIBRATION and REFERENCE EMULATION

Номер: US20130062579A1
Автор: Robert Ernest Troxler
Принадлежит: Troxler Electronic Laboratories Inc

Apparatuses and systems for emulating electrical characteristics of a material having a known dielectric constant or property are disclosed for standardizing and calibrating of electromagnetic devices. The emulator apparatus can include an electrically non-conductive layer having a dielectric constant less than the material dielectric constant and an electrically conductive layer adjacent the non-conductive layer. Artificial dielectrics for emulating the dielectric constant of a material are also disclosed including a substrate matrix having a dielectric constant less than the material dielectric constant and an additive combined with the substrate, the additive having a dielectric constant higher than the material dielectric constant. Artificial dielectrics may simulate the frequency response of a material relating to a specific property.

Подробнее
Номер записи: 18
18-04-2013 дата публикации

Systems and methods for the determination of formation water resistivity and conductivity

Номер: US20130096833A1
Автор: John DACY, Paul Roger MARTIN, Ragheb R. HANNA, Robert Hanna LEE, Ted J. GRIFFIN, Jr.
Принадлежит: Core Laboratories LP

According to various embodiments, a method may include measuring a first capacitance of a sample at a first frequency using a measurement system, measuring a second capacitance of the sample at a second frequency using the measurement system, calculating a ratio of the first capacitance to the second capacitance, and determining a formation water resistivity or conductivity of the sample using the ratio.

Подробнее
Номер записи: 19
25-04-2013 дата публикации

CAPACITIVE SENSOR AND METHOD FOR MAKING THE SAME

Номер: US20130098151A1
Автор: Alias Dzuzlindah Muhamad, Manut Azrif, Sulaiman Suraya, Tamsir Agus Santoso, Zain Azlina Mohd
Принадлежит:

The present invention relates to capacitive sensors for measuring humidity and moisture and to an improved process for making the same. The fabrication process for a capacitive sensor having a multi-layer electrodes for measuring humidity and moisture comprising disposing the multi-layer interdigitated electrodes in a multi-layer polyimides; providing a plurality of trenches on the surface of the electrode by lift off process; and covering the sensor with photosensitive negative polyimide. 1. A fabrication process for a capacitive sensor having multi-layer electrodes for disposing the multi-layer interdigitated electrodes in a multi-layer polyimides;', 'providing a plurality of trenches on the surface of the electrode by lift off process; and', 'covering the sensor with photosensitive negative polyimide., 'measuring humidity and moisture comprising'}2. A fabrication process as claimed in wherein the disposing of the multi-layer interdigitated electrodes is by depositing aluminum layers on the multi-layer polyimides which has been cured.3. A fabrication process as claimed in wherein the multi-layer polyimides is cured at a baking temperature about 150 degrees celsius for about 30 minutes.4. A fabrication process as claimed in wherein positive photoresist such as AZ4620 is coated on the cured polyimide during photolithography using AZ400k developer to form a patterned aluminum coating on the cured polyimide's surface for a first electrodes layer.5. A fabrication process as claimed in wherein positive photoresist such as AZ4620 is coated on a subsequent cured polyimide during photolithography using AZ400k developer to form a subsequent patterned aluminum coating on the subsequent cured polyimide's surface for a subsequent electrodes layer.6. A capacitive sensor for measuring humidity and sensor comprises at leastlayers of silicon wafer substrate, silicon dioxide, silicon nitride, backside aluminum, first polyimide, second polyimide, third polyimide, first ...

Подробнее
Номер записи: 20
30-05-2013 дата публикации

METHOD AND APPARATUS FOR PERFORMING A LATERAL FLOW ASSAY

Номер: US20130137189A1
Автор: DiNello Robert K., Neubarth Stuart, Nixon Dennis, Phillips Alan, Polito Alan J., Sierra George H., Thayer Richard M.
Принадлежит: Relia Diagnostic Systems, Inc.

An embodiment of the present invention provides a method for performing a lateral flow assay. The method includes depositing a sample on a test strip at an application region, detecting a first detection signal arising from the test strip in the first detection zone, and generating a baseline for the first measurement zone by interpolating between values of the detection signal outside of the first measurement zone and inside of the first detection zone. The method may include locating a beginning boundary and an ending boundary for the first measurement zone on the test strip. Additional detection zones having measurement zones may also be incorporated with the embodiment. 2. The method of claim 1 , wherein said addition of said sample is determined automatically by said apparatus.3. The method of claim 1 , wherein said capacitor comprises a first pad and a second pad claim 1 , wherein said second pad is spaced apart from said first pad claim 1 , and wherein said first and said second pad each form a capacitor plate.4. The method of claim 1 , wherein said capacitor comprises a pair of co-planar plates.5. The method of claim 3 , wherein said test strip is in close proximity to said first and said second pad.6. The method of claim 3 , wherein said test strip comprises a region to which said sample may be added claim 3 , wherein said region is spaced apart from said first and said second pad. This application is a divisional of, and claims the benefit of, U.S. application Ser. No. 10/393,670, filed on Mar. 19, 2003, which is a continuation of U.S. application Ser. No. 09/638,668, filed on Aug. 14, 2000, which is a continuation of U.S. application Ser. No. 09/199,255, filed on Nov. 23, 1998, now U.S. Pat. No. 6,136,610, the disclosures of all of which are incorporated herein by reference in their entireties.1. Field of the InventionThe present invention pertains to a method and apparatus for performing and analyzing a lateral flow assay. More specifically, the ...

Подробнее
Номер записи: 21
06-06-2013 дата публикации

Method of Producing a Lipid Bilayer and Microstructure and Measuring Arrangement

Номер: US20130140192A1
Автор: Baaken Gerhard, Behrends Jan
Принадлежит: ALBERT-LUDWIGS-UNIVERSITAT FREIBURG

The present invention relates to a method of producing a lipid bilayer over a microcavity open on one side and to a microstructure for investigating lipid bilayers and an associated measuring arrangement. The method of producing a lipid bilayer over a microcavity open on one side comprises the following steps: filling the microcavity with an electrolyte solution; moving a fluid containing dissolved lipids in a first direction onto the microcavity; moving the fluid in a second direction away from the microcavity; monitoring the formation of the lipid bilayer over the microcavity by detecting an impedance between a counter-electrode connected to the fluid and a measuring electrode, which is arranged inside the microcavity. The microstructure has a substrate, in which at least one microcavity is formed, wherein at least one measuring electrode is arranged inside the microcavity and wherein the at least one microcavity can be connected to a fluid channel so that a laminar flow of fluid can be made to flow over the microcavity with at least two different directions of flow. 129-. (canceled)30. A method of producing a lipid bilayer over a microcavity that is open on one side and is formed in a substrate , with the following steps:filling the microcavity and partially covering the substrate containing the microcavity with an electrolyte solution, so that there is continuity between the electrolyte solution in the microcavity and the electrolyte solution on the substrate;moving a fluid containing dissolved lipids, which forms a lipid phase, within the aqueous electrolyte solution covering the substrate, in a first direction onto the microcavity;setting and monitoring the position of the lipid phase on the microcavity by detecting an increased DC resistance or an impedance between a connected counter-electrode located outside the cavity and a measuring electrode, which is arranged inside the microcavity;moving the lipid phase in a second direction away from the microcavity; ...

Подробнее
Номер записи: 22
20-06-2013 дата публикации

Method and Apparatus for Detecting Smoke in an ION Chamber

Номер: US20130154657A1
Автор: Cooke Benjamin T., Curtis Keith Edwin, Julicher Joseph
Принадлежит: MICROCHIP TECHNOLOGY INCORPORATED

A smoke detection sensor ion chamber has a capacitance and a change in the permittivity of that capacitance dielectric (ionized air in the chamber) may be used to detect the presence of smoke therein. Smoke from typical fires is mainly composed of unburned carbon that has diffused in the surrounding air and rises with the heat of the fire. The permittivity of the carbon particles is about 10 to 15 times the permittivity of clean air. The addition of the carbon particles into the air in the ion chamber changes in the permittivity thereof that is large enough to measure by measuring a change in capacitance of the ion chamber. 1. A method for detecting smoke , comprising the steps of:coupling an ionization chamber to a capacitive voltage divider (CVD) circuit;determining a change in a capacitance of the ionization chamber using the CVD circuit; anddetecting the presence of smoke by detecting a predetermined change in the capacitance.2. The method according to claim 1 , wherein the step of determining the change in the capacitance of the ionization chamber further comprises the steps of:determining a first change in the capacitance of the ionization chamber when the ionization chamber is at a first polarity;determining a second change in the capacitance of the ionization chamber when the ionization chamber is at a second polarity;determining a difference between the first change and the second change; andusing the difference in determining the change in the capacitance of the ionization chamber.3. The method according to claim 1 , where the predetermined change in the capacitance is a change in the capacitance within a certain time.4. The method according to claim 1 , where the step of determining the change in the capacitance of the ionization chamber comprises the steps of:charging the capacitance of a first capacitor to a first voltage;charging the capacitance of the ionization chamber to a second voltage;coupling the first capacitor to the capacitance of the ...

Подробнее
Номер записи: 23
27-06-2013 дата публикации

METHOD AND SYSTEM FOR DISCRIMINATING BULK LIQUID FROM FOAM AND RESIDUALS OF THE BULK LIQUID

Номер: US20130160530A1
Автор: Zuppiger Adelrich
Принадлежит: ROCHE DIAGNOSTICS OPERATIONS, INC.

A method and an automated system for discriminating bulk liquid from foam and/or residuals of the bulk liquid of a sample contained in a sample vessel are presented. A probe having an electric capacitance is provided and moved into the sample. Consecutive steps of charging and at least partially discharging the probe to generate a discharging current is repeatedly performed. A quantity indicative of the discharging current for the consecutive steps of charging and at least partially discharging the probe is measured. The quantity is analyzed to determine an electric resistance (R) of the sample via the probe. The bulk liquid is discriminated from the foam and/or the residuals of the bulk liquid based on a change of the electric resistance (R) of the sample occurring when the probe contacts the bulk liquid. 1. A method for discriminating bulk liquid from foam and/or residuals of the bulk liquid of a sample contained in a sample vessel , the method comprising:providing a probe having an electric capacitance;moving the probe into the sample;repeatedly performing a pair of consecutive steps of charging and at least partially discharging the probe to generate a discharging current;measuring a quantity indicative of the discharging current for each pair of consecutive steps of charging and at least partially discharging the probe;{'sub': 'mess', 'analyzing the quantity to determine an electric resistance (R) of the sample via the probe; and'}{'sub': 'mess', 'discriminating the bulk liquid from the foam and/or the residuals of the bulk liquid based on a change of the electric resistance (Rof the sample occurring when the probe contacts the bulk liquid.'}2. The method according to claim 1 , wherein the pair of consecutive steps of charging and at least partially discharging the probe is periodically repeated with a repeating frequency in a range of from 1 kHz to 100 kHz.3. The method according to claim 1 , wherein the quantity indicative of the discharging current of the ...

Подробнее
Номер записи: 24
04-07-2013 дата публикации

CAPACITANCE ELECTRODE STRUCTURE FOR MEASURING MOISTURE

Номер: US20130170093A1
Автор: Sammartini Marco
Принадлежит: BRY-AIR PROKON SAGL

Device () for measuring moisture of materials flowing in the shape of dried, liquid or gaseous granulates, or in the shape of powders in at least one duct disposed at least partially along an axis (X-X) through which the material of which the moisture has to be measured flows, comprising: at least one capacitor (Cx) wherein the material of which the moisture has to be measured flows, characterized in that the capacitor (CX) comprises: at least two metallic rings () coaxially mounted to said axis X-X and adjacent to an inner wall of the duct through which the material of which the moisture has to be measured flows; at least one dielectric element () having: dielectric constant substantially linear with the temperature changing, and thermal expansion lower than α=27×10′/° C. 11. Device () for measuring moisture of materials flowing in the shape of dried , liquid or gaseous granulates , or in the shape of powders in at least one duct disposed at least partially along the axis (X-X) through which the material of which the moisture has to be measured flows , comprising:at least one capacitor (Cx) wherein the material of which the moisture has to be measured flows, characterized in that the capacitor (CX) comprises:{'b': '3', 'at least two metallic rings () coaxially mounted to said axis (X-X) and adjacent to an inner wall of the duct through which the material of which the moisture has to be measured flows;'}{'b': '5', 'at least one dielectric element () havingdielectric constant substantially linear with the temperature changing, andthermal expansion lower than a=27×10˜6/° C.2156. Device () for measuring moisture according to claim 1 , wherein said at least one dielectric element () comprises at least one ring of dielectric material ().31. Device () for measuring moisture according to claim 2 , wherein a radially inner surface of said electrodes is disposed substantially aligned with said inner wall of said at least one duct.41. Device () for measuring moisture ...

Подробнее
Номер записи: 25
11-07-2013 дата публикации

PERMITTIVITY SENSOR

Номер: US20130176038A1
Автор: Wherritt Peter
Принадлежит: Oxford RFSensors Ltd

Permittivity sensor and method comprising: an oscillator (L,) having operating characteristics (F,V); permittivity sensing element () coupled to the oscillator and arranged to alter the operating characteristics of the oscillator in response to changes in permittivity presented to the permittivity sensing element; a reference element () switchably () coupled to both the oscillator and the permittivity sensing element and arranged to alter the operating characteristics of the oscillator. Method of measuring the composition of a fuel comprising the steps of: measuring a real permittivity of the fuel; measuring an imaginary permittivity of the fuel; determining a proportion of biodiesel in the fuel based on the measured real permittivity. Determining a proportion of unrefined oil in the fuel based on the measured imaginary permittivity. 1. A permittivity sensor comprising:an oscillator having operating characteristics;a permittivity sensing element coupled to the oscillator and arranged to alter the operating characteristics of the oscillator in response to changes in permittivity presented to the permittivity sensing element; anda reference element comprising an electrical impedance having a real and imaginary component controllably coupled to both the oscillator and the permittivity sensing element and arranged to alter the operating characteristics of the oscillator.2. The fluid sensor of claim 1 , wherein the permittivity sensing element is a capacitive sensing element or an inductive sensing element.3. The fluid sensor of claim 1 , wherein the reference element comprises a capacitor and a resistor or an inductor.4. The fluid sensor according to claim 1 , wherein the oscillator is a positive feedback oscillator.5. The fluid sensor according to claim 1 , wherein the reference element is switchably coupled to the permittivity sensing element and the oscillator.6. (canceled)7. The fluid sensor according to claim 1 , wherein the oscillator is arranged to drive the ...

Подробнее
Номер записи: 26
25-07-2013 дата публикации

Sensor Element, Method of Making the Same, and Sensor Device Including the Same

Номер: US20130186177A1
Автор: Gryska Stefan H., Lee Tzu-Chen, Palazzotto Michael C.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A sensor element () includes a first conductive electrode () having a first conductive member () electrically coupled thereto; an absorptive dielectric layer () comprising a polymer of intrinsic microporosity; and a second conductive electrode () having a second conductive member () electrically coupled thereto. The second conductive electrode comprises carbon nanotubes and is permeable to at least one organic vapor. The absorptive dielectric layer is at least partially disposed between the first conductive electrode and the second conductive electrode. A method of making the sensor element, and sensor device () containing it, are also disclosed. 1. A sensor element comprising:first conductive electrode;an absorptive dielectric layer comprising a polymer of intrinsic microporosity; anda second conductive electrode,wherein the second conductive electrode comprises carbon nanotubes and is permeable to at least one organic vapor, and wherein the absorptive dielectric layer is at least partially disposed between the first conductive electrode and the second conductive electrode.2. The sensor element of claim 1 , further comprising a dielectric substrate supporting the first conductive electrode.3. The sensor element of claim 2 , wherein the dielectric substrate comprises a polymeric film.4. The sensor element of claim 1 , wherein the carbon nanotubes comprise at least 99 percent by weight of the second conductive electrode.5. The sensor element of claim 1 , wherein the carbon nanotubes comprise multi-walled carbon nanotubes.6. The sensor element of claim 1 , wherein the polymer of intrinsic microporosity comprises organic macromolecules comprised of generally planar species connected by rigid linkers claim 1 , said rigid linkers having a point of contortion such that two adjacent planar species connected by one of the rigid linkers are held in non-coplanar orientation.7. The sensor element of claim 1 , wherein the first conductive electrode comprises carbon nanotubes ...

Подробнее
Номер записи: 27
25-07-2013 дата публикации

Method and apparatus for combined electrochemical synthesis and detection of analytes

Номер: US20130186767A1
Автор: Brandon Barnett, Gordon Holt, Handong Li, Hernan Adolfo Castro, Narayan Sundararajan, Wei Wang
Принадлежит: Individual

Described are devices and methods for detecting binding on an electrode surface. In addition, devices and methods for electrochemically synthesizing polymers and devices and methods for synthesizing and detecting binding to the polymer on a common integrated device surface are described.

Подробнее
Номер записи: 28
25-07-2013 дата публикации

PRESSURE SENSOR

Номер: US20130189160A1
Автор: Blankenship Steven D., Lucas Paul D.
Принадлежит: MKS Instruments, Inc.

One or more reactive gases are introduced to a capacitance manometer at a particular area or areas between the inner and outer capacitive electrodes so the error-inducing measurement effects of positive and negative bending is neutralized or minimized. Additionally, a guard structure may be used for the electrode structure of the capacitance manometer. The guard structure presents an area that is relatively insensitive to the diffusion of the gas into the diaphragm and the resulting changing surface tension, curvature and deflection, thus providing increased or optimal stability of the zero reading and pressure reading of the manometer. The guard may also provide electrostatic isolation of the electrodes. 1. A capacitive manometer assembly comprising:a diaphragm including a conductive material;an electrode structure including an inner electrode and an outer electrode, wherein the inner electrode and outer electrode are separated from one another, wherein the diaphragm is movable relative to the electrode structure between (i) a zero position when the pressure on each side of the diaphragm is the same and (ii) a maximum differential position when the maximum measurable differential pressure is applied to the diaphragm;a support structure arranged so as to support the diaphragm so that the diaphragm is constrained relative to the electrode structure, and the diaphragm is spaced from and axially aligned with the inner and outer electrodes relative to an alignment axis of the manometer;a baffle with one or more apertures configured to admit gas to a region adjacent the diaphragm, wherein the baffle is configured to reduce effects of surface deformation of the diaphragm due to reactive gas.2. The capacitive manometer assembly of claim 1 , wherein the one or more apertures in the baffle are configured in alignment claim 1 , along the alignment axis of the capacitive manometer assembly claim 1 , with a gap between the inner and outer electrodes on the diaphragm.3. The ...

Подробнее
Номер записи: 29
08-08-2013 дата публикации

System And Method Of Using An Electric Field Device

Номер: US20130200907A1
Автор: Kitchens Jack C., Schneider John K.
Принадлежит: Ultra-Scan Corporation

A biometric scanner having an electric field device and a method of using that scanner are disclosed. The electric field device (a) has no electric field generator or an electric field generator that is prevented from providing an electric field to a biometric object, such as a finger, and (b) has an electric field sensor array comprised of a plurality of electric field sensors. Capacitance readings from the sensor array are used to generate values that are attributed to locations corresponding to the sensors. 1. A biometric scanner , comprising:an electric field device (a) having no electric field generator or an electric field generator that is prevented from providing an electric field to a biometric object, and (b) having an electric field sensor array comprised of a plurality of electric field sensors; (i) identify a particular one of the electric field sensors that is providing a capacitance reading;', 'sum the capacitance reading of the identified electric field sensor with capacitance readings from adjacent electric field sensors;', '(ii) divide the sum by the number of sensors contributing to that sum to provide a value;', '(iii) attribute the value to the identified sensor;', '(iv) repeat steps (i) through (iii) until a value has been attributed to all sensors., 'a computer coupled to receive capacitance readings from the sensors of the electric field sensor array, and programmed to process the capacitance readings as follows2. The biometric scanner of claim 1 , wherein the computer is further programmed to create an image of the biometric object using the values.3. The biometric scanner of claim 1 , wherein the computer is further programmed to use the values in determining whether the biometric object matches information in a database.4. A method of scanning a biometric object claim 1 , comprising:(i) provide an electric field device (a) having no electric field generator or an electric field generator that is prevented from providing an electric field ...

Подробнее
Номер записи: 30
15-08-2013 дата публикации

Humidity detection sensor and a method for manufacturing the same

Номер: US20130207673A1
Автор: Atsushi Tondokoro, Satoshi Waga, Shinya Yokoyama, Sumihito Morita, Takashi Sato
Принадлежит: Alps Electric Co Ltd

A humidity detection sensor includes a lower electrode provided on a board, an upper electrode provided so as to face the lower electrode, a humidity sensing film which is formed at least between the lower electrode and the upper electrode and whose dielectric constant changes in response to humidity, and a protective film provided so as to cover the upper electrode. Each of the upper electrode and the protective film has an opening through which the humidity sensing film is partially exposed to the outside. In the opening, the humidity sensing film is provided so as to reach at least a position higher than the position of the lower surface of the protective film.

Подробнее
Номер записи: 31
22-08-2013 дата публикации

Fuel property detecting device

Номер: US20130213118A1
Автор: Hiroshi Nakamura
Принадлежит: Denso Corp

A fuel property detecting device includes a passage member, an electrode holding member, a first electrode having a distal end part on a fuel passage-side immersed in fuel in the fuel passage, a second electrode formed radially inward of the first electrode in a tubular shape to extend in an axial direction, spaced away from the first electrode, and having one end part on the fuel passage-side immersed in fuel in the first electrode, an elastic member, and an insulating member. The elastic member is located on the fuel passage-side relative to the holding member to liquid-tightly seal a clearance between the first electrode and the passage member. The insulating member is located on the fuel passage-side relative to the holding member and disposed between the one end part and the other end part of the second electrode to liquid-tightly seal a clearance between the first and second electrodes.

Подробнее
Номер записи: 32
22-08-2013 дата публикации

SENSOR APPARATUS FOR DETECTING PROPERTIES OF LIQUID

Номер: US20130214797A1
Автор: Gruden Roman
Принадлежит: Seuffer GmbH & Co. KG

The invention relates to a sensor device for detecting properties of fluid media in a container, comprising at least one base plate () made of an insulating material and having a first surface () exposed to the medium (), at least two sensor elements () having at least a first and a second electrode () arranged insulated from one another on the first surface of the base plate and around which the medium flows, the at least two sensor elements being arranged in a predetermined spatial position relative to each other.

Подробнее
Номер записи: 33
29-08-2013 дата публикации

FUEL PROPERTY DETECTING DEVICE

Номер: US20130219989A1
Автор: TARUI Jun
Принадлежит: Denso Corporation

A fuel property detecting device includes an electrode part; a voltage conversion part; a standard voltage application part; an amplifying part; a temperature detection unit; a storage unit; a first calculation unit; a second calculation unit for calculating alcohol concentration in fuel based on capacitance calculated by the first unit, present fuel temperature, and a map indicating a first relationship between capacitance and fuel temperature; a third calculation unit; a conductivity determination unit for determining whether present conductivity calculated by the third unit is a predetermined conductivity or larger; a fourth calculation unit for calculating a second relationship between conductivity and fuel temperature based on past conductivity, past fuel temperature, present conductivity calculated by the third unit, and present fuel temperature; and an abnormality determination unit for determining whether the electrode part is abnormal based on the second relationship, and a coefficient of temperature properties indicating the second relationship. 1. A fuel property detecting device comprising:an electrode part that includes electrodes immersed in fuel and that is charged with or discharges an amount of electric charge which changes according to a concentration of alcohol contained in fuel between the electrodes;a voltage conversion part that is configured to convert the amount of electric charge, with which the electrode part is charged or which is discharged by the electrode part, into a detection voltage;a standard voltage application part that is configured to apply a standard voltage to the voltage conversion part;an amplifying part that is configured to amplify the detection voltage and to output the amplified detection voltage;a temperature detection means for detecting fuel temperature and for outputting a signal that is in accordance with the detected fuel temperature; a map indicating a relationship between capacitance of the electrode part and the ...

Подробнее
Номер записи: 34
12-09-2013 дата публикации

LIQUID-DISCHARGING DEVICE, AND METHOD FOR SUBSTITUTING LIQUID

Номер: US20130235113A1
Автор: KOMATSU Shinya
Принадлежит: SEIKO EPSON CORPORATION

A liquid-discharging device includes a nozzle that discharges liquid including a substance having sedimentation properties, a liquid supply channel, an inspection part, stirring part and a control part. The inspection part brings the liquid to be discharged from the nozzle to a first electric potential by a first electrode, discharges the liquid toward a second electrode of a second electric potential, and inspects a discharge state of the liquid based on a change of an electrostatic capacitance between the first electrode and the second electrode. The control part causes the nozzle to eject the liquid in order to substitute the liquid in an area downstream side than a predetermined area with the liquid stirred by the stirring part in the predetermined area. The control part determines a timing of ejection completion of the liquid based on the change of the electrostatic capacitance. 1. A liquid-discharging device comprising:a nozzle configured and arranged to discharge liquid including a substance having sedimentation properties;a liquid supply channel configured and arranged to supply the liquid to the nozzle from a liquid tank that stores the liquid;an inspection part configured and arranged to bring the liquid to be discharged from the nozzle to a first electric potential by a first electrode, to discharge the liquid toward a second electrode of a second electric potential which is different from the first electric potential, and to inspect a discharge state of the liquid based on a change of an electrostatic capacitance between the first electrode and the second electrode;a stirring part configured and arranged to stair the liquid in a predetermined area of the liquid supply channel; anda control part configured and arranged to cause the nozzle to eject the liquid in order to substitute the liquid in an area downstream side than the predetermined area with respect to a liquid supply direction with the liquid stirred by the stirring part in the predetermined ...

Подробнее
Номер записи: 35
26-09-2013 дата публикации

Method to Improve the Leaching Process

Номер: US20130247478A1
Автор: Federico Bellin, Vamsee Chintamaneni
Принадлежит: Varel International Industries LP

A method to leach a component that includes a polycrystalline structure. The method includes obtaining the component having the polycrystalline structure. The polycrystalline structure includes catalyst material deposited therein. The method also includes performing a leaching process on the polycrystalline structure to an intermediate leaching depth. The leaching process removes at least a portion of the catalyst material from the polycrystalline structure and forms one or more by-product materials deposited therein. The method also includes performing a cleaning process on the polycrystalline structure, which removes at least a portion of the by-product materials. The leaching process and the cleaning process are iteratively continued until the intermediate leaching depth reaches a desired leaching depth, both of which are measured from one end of the polycrystalline structure. The desired leaching depth is greater than at least one intermediate leaching depth.

Подробнее
Номер записи: 36
03-10-2013 дата публикации

FUEL PROPERTY MEASURING DEVICE

Номер: US20130257457A1
Автор: KATO Nobuhiro
Принадлежит: AISAN KOGYO KABUSHIKI KAISHA

A measuring device for measuring a property of fuel supplied from a fuel tank to a combustion apparatus, may comprise a fuel pump that sucks the fuel in a fuel tank and pumps the fuel toward a combustion apparatus, a fuel discharging portion that discharges the fuel from the fuel pump into the fuel tank, a fuel-measuring storage chamber that receives the fuel discharged from the fuel discharging portion and a pair of electrodes disposed within the fuel-measuring storage chamber so as to measure capacitance. 1. A measuring device for measuring a property of fuel supplied from a fuel tank to a combustion apparatus , the measuring device comprising:a fuel tank that stores fuel;a fuel pump that sucks the fuel in the fuel tank and pumps the fuel toward the combustion apparatus;a fuel discharging portion that discharges the fuel from the fuel pump into the fuel tank;a fuel-measuring storage chamber that receives the fuel discharged from the fuel discharging portion; anda pair of electrodes disposed within the fuel-measuring storage chamber so as to measure capacitance.2. The measuring device according to claim 1 , whereinthe fuel discharging portion comprises a pressure regulator disposed between the fuel pump and the combustion apparatus so as to regulate pressure of the fuel pumped toward the combustion apparatus to a predetermined value by discharging surplus fuel.3. The measuring device according to claim 1 , whereinthe fuel discharging portion comprises:a branch passage that branches off from a fuel supply pipe for supplying fuel from the fuel pump to the combustion apparatus; anda decompressing portion that decreases the pressure of the fuel in the branch passage.4. The measuring device according to claim 1 , whereinthe fuel discharging portion comprises a discharge passage that extends from a vapor jet disposed in the fuel pump to the inside of the fuel tank, andthe vapor jet is used for discharging vapor in the fuel pump, from the fuel pump into the fuel tank.5. ...

Подробнее
Номер записи: 37
03-10-2013 дата публикации

Capacitive Measurement Multiplexing Circuit and Method

Номер: US20130257459A1
Автор: Ahne Adam Jude
Принадлежит: Lexmark International, Inc.

A capacitance measuring system, including: a calibration capacitor; first circuitry for sensing an input current at an input thereof and generating an output signal that is based upon a capacitance appearing at the input of the first circuitry; and multiplexer circuitry, coupled between the input of the first circuitry and a terminal of each of the capacitor to be measured and the calibration capacitor, for selectively coupling the terminal of each, one at a time, to the input of the first circuitry while the terminal not coupled to the input of the conversion circuitry is coupled to a ground reference; and controller circuitry for calculating a capacitance of the capacitor to be measured based upon the output signal of the first circuitry when the capacitor to be measured is coupled to the input thereof and upon the output signal of the first circuitry when the calibration capacitor is coupled to the input thereof. 1. A system for determining capacitance of a capacitor , comprising:at least one first capacitor having a capacitance to be sensed, each at least one first capacitor having a first terminal and a second terminal;a signal generator coupled to the first terminal of the at least one first capacitor for generating an alternating signal;a second capacitor having a first terminal coupled to the signal generator and a second terminal;conversion circuitry for sensing an alternating current at an input thereof and generating a substantially DC voltage output signal based upon the sensed alternating current; andswitching circuitry, coupled between the input of the conversion circuitry and the second terminal of each of the at least one first capacitor and the second capacitor, for selectively coupling the second terminal of the at least one first capacitor and the second capacitor, one at a time, to the input of the conversion circuitry while the second terminal not coupled to the input of the conversion circuitry is coupled to a ground reference, the ...

Подробнее
Номер записи: 38
17-10-2013 дата публикации

Detecting And Counting Device For Detecting A Wholeness And For Counting Pharmaceutical/parapharmaceutical Articles

Номер: US20130271162A1
Автор: MONTI Giuseppe
Принадлежит: MARCHESINI GROUP S.P.A.

A detecting/counting device for pharmaceutical/parapharmaceutical articles has a sliding support groove () having a first lateral wall (A) and a second lateral wall (B) and a bottom. A first capacitive sensor (C) has a first armature (CA) parallel to the first lateral wall (A) and a second armature (CB) parallel to the second lateral wall and connected to a first reference potential Vref by a first circuit (O). A second capacitive sensor (C) has a first armature (CA) parallel to the first lateral wall and a second armature (CB) parallel to the second lateral wall and connected to a second reference potential Vref by a second circuit (O). A data processing unit (E) receives signals from the first circuit and the second circuit during transit of an article, indicating the shape of the articles, and compares them with reference ranges to determine whether the article is whole. 1100. A detecting and counting device for detecting a wholeness of and for counting pharmaceutical/parapharmaceutical articles , the device being usable in automatic machines for packing pharmaceutical/parapharmaceutical articles into containers , the automatic machines having vibrating conveyors (CV) for advancing the articles in line , distanced from one another , and a directing zone (W) for directing the articles towards the containers , for filling the containers , the device () comprising:{'b': 1', '11', '12', '1', '11', '12', '1', '15', '11', '12', '15', '15', '15', '15', '15, 'a sliding support () for sliding the articles, exhibiting an article inlet side () and an article outlet side (), the sliding support () being positionable downstream of the vibrating conveyors (CV) and upstream of the article directing zone (W) in such a way that the article inlet side () is arranged consecutively to an outlet of the vibrating conveyors (CV), so as to receive therefrom one article after another, the article outlet side () facing towards an initial part of the directing zone (W), the sliding support ...

Подробнее
Номер записи: 39
31-10-2013 дата публикации

MOISTURE SENSOR ARRANGEMENT

Номер: US20130287062A1
Автор: Mayer Elmar, Niessner Georg, Runck Joachim
Принадлежит: E+E Elektronik Ges.m.b.H

A moisture sensor arrangement including a plate-like semiconductor substrate and an integrated signal processing component disposed on a first side of the semiconductor substrate. The moisture sensor arrangement including a capacitive moisture sensor connected electrically conductively to the integrated signal processing component, wherein the capacitive moisture sensor is disposed on either the first side or a second side of the semiconductor substrate that is opposite the first side of the semiconductor substrate. In addition, the plate-like semiconductor substrate includes 1) plated through-holes, by way of which elements on the first side and the second side of the semiconductor substrate are electrically connectable to one another; and 2) a temperature sensor integrated with the integrated signal processing component. 1. A moisture sensor arrangement , comprising:a plate-like semiconductor substrate;an integrated signal processing component disposed on a first side of said semiconductor substrate;a capacitive moisture sensor connected electrically conductively to said integrated signal processing component, wherein said capacitive moisture sensor is disposed on either said first side or a second side of said semiconductor substrate that is opposite said first side of said semiconductor substrate, wherein plated through-holes, by way of which elements on said first side and said second side of said semiconductor substrate are electrically connectable to one another; and', 'a temperature sensor integrated with said integrated signal processing component., 'said plate-like semiconductor substrate comprises2. The moisture sensor arrangement according to claim 1 , wherein said integrated signal processing component comprises:an analog/digital converter unit for reading in and digitizing analog measurement signals of said capacitive moisture sensor and said temperature sensor;an evaluation unit for determining a measured variable from said analog measurement signals ...

Подробнее
Номер записи: 40
07-11-2013 дата публикации

System or method for measuring the phase of refrigerant in a cooling system

Номер: US20130291568A1
Автор: Michael Elstroem
Принадлежит: HB PORDUCTS AS

A system or a method for performing capacitive sensing of humidity/liquid, primarily in conductive or non-conductive liquid/gas mixtures, having a control unit and at least first and second sensor electrodes, the capacity between the first and the second electrodes being measured,. To measure humidity/liquid in a circulating gas/liquid mixture at least one of the sensor electrodes is formed as a tube which is placed in the liquid/gas mixture. Based on the capacitive measurements, a calculation of at least one dataset for control of a second system is performed. The tube can be more or less filled up with liquid or gas and the capacity can be measured as it depends on the content around or inside the tube, and if a dry gas is there will be one value of capacity and in a situation where the gas is being replaced by liquid, the capacity value will change rapidly.

Подробнее
Номер записи: 41
07-11-2013 дата публикации

Capacitance Detection in a Droplet Actuator

Номер: US20130293246A1
Автор: Paik Philip Y., Pamula Vamsee K., Pollack Michael G., Srinivasan Vijay, Sturmer Ryan A.
Принадлежит: Advanced Liquid Logic Inc.

The embodiments described herein provide methods of measuring capacitance, detecting a droplet at a position, determining a thickness of an oil film and determining temperature in a droplet actuator. Specifically, the capacitance detection method may be used as a real-time verification tool in order to detect the absence, presence, and/or partial presence of a droplet at an electrode, analyze droplet properties, measure droplet size or volume, optimize the speed of droplet operation and detect air bubbles. 1. A method of measuring capacitance at a position within a droplet actuator , the method comprising applying a base oscillation frequency at the position and detecting a deviation from the base oscillation frequency.2. The method of claim 1 , further comprising using a computer to correlate the deviation from the base oscillation frequency with the absence claim 1 , presence claim 1 , partial presence or size of a droplet at the position.3. A method of detecting a droplet at a position within a droplet actuator claim 1 , the method comprising detecting charge and/or discharge from a droplet at the position.4. The method of claim 3 , further comprising measuring charge time at the position.5. The method of claim 3 , further comprising measuring discharge time at the position.6. The method of claim 3 , further comprising measuring charge time and discharge time at the position.7. The method of wherein the detecting is accomplished at an electrode situated across a droplet operations gap from the position.8. The method of wherein the detecting is accomplished by a circuit that comprises a protection circuit.9. The method of wherein the detecting is accomplished simultaneously at multiple locations.10. The method of wherein the detecting is accomplished sequentially at multiple locations.11. The method of wherein the detecting is accomplished across a region extending from a droplet operations electrode on a first substrate to a ground electrode on a second substrate ...

Подробнее
Номер записи: 42
14-11-2013 дата публикации

MOISTURE-SENSITIVE CERAMIC MATERIAL AND A MOISTURE-SENSITIVE CERAMIC ELEMENT

Номер: US20130298650A1
Автор: MIURA Tadamasa
Принадлежит:

A moisture-sensitive ceramic material having a composition represented by the general formula RE(A,B)O, wherein RE is a rare earth element, A is a divalent metal element, and B is a tetravalent metal element. More specifically, the moisture-sensitive ceramic material has a composition represented by the general formula RE(AB)O, and A is Ni or Mg, and B is Ti or Sn. 1. A moisture-sensitive ceramic material having a composition represented by the general formula: RE(A ,B)O , wherein RE is a rare earth element , A is a divalent metal element , and B is a tetravalent metal element.2. The moisture-sensitive ceramic material according to claim 1 , wherein the composition is represented by the general formula RE(NiTi)O.3. The moisture-sensitive ceramic material according to claim 2 , wherein RE is selected from the group consisting of Dy and Er. (from new paragraph [0057])4. The moisture-sensitive ceramic material according to claim 1 , wherein the composition is represented by the general formula RE(MgTi)O.5. The moisture-sensitive ceramic material according to claim 4 , wherein RE is selected from the group consisting of La claim 4 , Nd claim 4 , Gd claim 4 , Dy and Er. (from new paragraph [0061])6. The moisture-sensitive ceramic material according to claim 4 , wherein the composition is represented by the general formula Dy(MgTi)O. (from new paragraph [0062])7. The moisture-sensitive ceramic material according to claim 1 , wherein the composition is represented by the general formula RE(NiSn)O.8. The moisture-sensitive ceramic material according to claim 7 , wherein RE is selected from the group consisting of Dy and Er. (from new paragraph [0065])9. The moisture-sensitive ceramic material according to claim 1 , wherein the composition is represented by the general formula RE(MgSn)O.10. The moisture-sensitive ceramic material according to claim 9 , wherein RE is selected from the group consisting of La claim 9 , Nd claim 9 , Gd claim 9 , Dy and Er. (from new paragraph [ ...

Подробнее
Номер записи: 43
14-11-2013 дата публикации

Stud Detector

Номер: US20130300436A1
Автор: Albrecht Andrej, Zibold Tobias
Принадлежит: ROBERT BOSCH GMBH

A stud detector has a voltage source, a first device, and a second device. The first device serves to generate a voltage that is galvanically decoupled from the voltage source. The second device serves for the potential-free transmission of a control signal. 1. A stud detector comprising:a voltage source;a first device configured to generate a voltage that is galvanically decoupled from the voltage source; anda second device configured for potential-free transmission of a control signal.2. The stud detector according to claim 1 , wherein the voltage source includes a first battery.3. The stud detector according to claim 1 , wherein:the first device generates the galvanically decoupled voltage from a source voltage provided by the voltage source, andthe first device comprises one of the following group: a light source and a solar cell; a heating element and a thermoelement; an electric motor and a generator; a transformer; a switching controller; and a capacitor.4. The stud detector according to claim 3 , wherein:the first device includes a switching controller, andthe first device is configured to be operated in a burst mode.5. The stud detector according to claim 1 , wherein the first device includes a second battery.6. The stud detector according to claim 1 , wherein the second device includes an optocoupler.7. The stud detector according to claim 1 , further comprising:a third device configured for potential-free transmission of a measurement signal.8. The stud detector according to claim 7 , wherein the third device includes an isolation amplifier.9. The stud detector according to claim 8 , wherein the isolation amplifier includes an operational amplifier and a coupling capacitance.10. The stud detector according to claim 1 , further comprising:at least one electrode,wherein the stud detector is configured to detect a change in capacitance of the at least one electrode. This application claims priority under 35 U.S.C. §119 to patent application no. DE 10 2012 ...

Подробнее
Номер записи: 44
14-11-2013 дата публикации

METHOD OF MEASURING A CAPACITANCE

Номер: US20130304397A1
Автор: Erlandsson Dag, Hedstrom Martin, LARSSON Joakim, Mattiasson Bo
Принадлежит: CAPSENZE HB

A method of measuring a capacitance (C) of a sensor having a working electrode that is coated by an insulating layer and a ligand forming an affinity surface. The method involves the steps of bringing the electrode into contact with an analyte, supplying a constant first current (I), and a constant second current (I) of opposite direction to the first current (I), and a constant third current (I) of same direction as the first current (I) during determined time periods to the sensor. Further the method includes sampling the potential (V) built up across the sensor, and calculating the capacitance of the sensor from the inclination (B, D, F, H) of a potential curve received in response to the current supply. A method used for detection of an interaction between a ligand and an analyte is also disclosed. 114-. (canceled)15. A method of measuring a capacitance (C) of a sensor having the capacitance and a resistance , the sensor including a working electrode that is coated by an insulating layer with a ligand arranged thereto forming an affinity surface on said electrode , the method comprising the steps of:bringing said electrode into contact with an analyte;{'sub': 1', '1, 'supplying a constant first current (I) to the sensor during a first time period (t) by means of a current source until a potential built up across the sensor has reached a predetermined value (V), and'}simultaneously sampling the potential (V) built up across the sensor;{'sub': 2', '2', '2', '1', '1', '2', '1', '1, 'supplying a constant second current (I) to the sensor during a second time period (t) by means of the current source, the second current (I) having an opposite direction compared to the first current (I) and having a same absolute value as the first current (I), wherein the second time period (t) is equal to said first time period (t) or is equal to said first time period (t) multiplied with a factor two, and'}simultaneously sampling the potential (V) built up across the sensor;{'sub': ...

Подробнее
Номер записи: 45
28-11-2013 дата публикации

DECODER FOR DETERMINING A SUBSTANCE OR MATERIAL STRUCTURE OF A DETECTED OBJECT BASED ON SIGNALS OF A CAPACITIVE SENSOR AND METHOD FOR DETERMINING A SUBSTANCE OR MATERIAL STRUCTURE OF A DETECTED OBJECT BASED ON SIGNALS OF A CAPACITIVE SENSOR

Номер: US20130314106A1
Автор: Gecnuk Libor
Принадлежит: Freescale Semiconductor, Inc.

A decoder unit for determining a substance or material structure of a detected object based on signals of a capacitive sensor comprises a distribution determination device arranged to determine a detected distribution relation based on signals of the at least one capacitive sensor; a comparison device arranged to compare the detected distribution relation with at least one predetermined distribution relation, the at least one predetermined distribution relation corresponding to a substance or a material structure and an output device arranged to indicate the result of the comparison carried out by the comparison device. 1. A decoder unit for determining a substance or material structure of a detected object based on signals of a capacitive sensor , comprising:a distribution determination device arranged to determine a detected distribution relation based on signals from said capacitive sensor;a comparison device arranged to compare the detected distribution relation with at least one predetermined distribution relation, the at least one predetermined distribution relation being associated with a substance or a material structure;an output device arranged to indicate the result of the comparison carried out by the comparison device.2. The decoder unit according to claim 1 , wherein the distribution relation comprises a time-independent distribution of measured values.3. The decoder unit according to claim 1 , wherein the decoder unit is connected at least one capacitive sensor.4. The decoder unit according to claim 1 , wherein the decoder unit is connected to at least one transmitter.5. The decoder unit according to claim 4 , wherein the at least one transmitter is arranged to transmit an electromagnetic signal having a frequency between 25 and 100 Hz.6. The decoder unit according to claim 4 , wherein the at least one transmitter is arranged to transmit an electromagnetic signal having a frequency of approximately 2 kHz.7. The decoder unit according to claim 1 , ...

Подробнее
Номер записи: 46
05-12-2013 дата публикации

WEARABLE ARTICLES WITH WETNESS SENSING

Номер: US20130324955A1
Автор: Huang Hao, WONG Sun Hoi, Xu Fei
Принадлежит: CKICOM TECHNOLOGY LIMITED

A wearable article for wearing by a user and comprising wetness sensing electrodes, wherein the wetness sensing electrodes are to be in contact with a wetting electrolytic liquid during normal use when the wearable article is wetted by the electrolytic liquid, and to operate as a capacitor upon application of a direct current at contact terminals of the wetness sensing electrodes when so wetted to facilitate capacitance measurement through the wetness sensing electrodes whereby wetness information of the wearable article is provided. 122-. (canceled)23. A wearable article for wearing by a user comprising wetness sensing electrodes , wherein the wetness sensing electrodes are to be in contact with a wetting electrolytic liquid during normal use when the wearable article is wetted by the electrolytic liquid , and to operate as a capacitor upon application of a direct current at contact terminals of the wetness sensing electrodes when so wetted to facilitate capacitance measurement through the wetness sensing electrodes whereby wetness information of the wearable article is provided.24. A wearable article according to claim 23 , wherein the wetness sensing electrodes are adapted to operate as an electrolytic capacitor or an electrochemical capacitor upon application of a direct current when the wearable article is wetted by an electrolytic liquid such as urine during normal use claim 23 , the applied direct current being below a threshold which will cause electrolysis of the electrolytic liquid.25. A wearable article according to claim 24 , wherein the wetness sensing electrodes comprises a first elongate electrode and a second elongate electrode claim 24 , the second elongate electrode extending alongside the first elongate electrode.26. A wearable article according to claim 25 , wherein the wetness sensing electrodes are printed of carbonized ink.27. A wearable article according to claim 23 , wherein the capacitance measured through the wetness sensing electrodes ...

Подробнее
Номер записи: 47
26-12-2013 дата публикации

FUEL PROPERTY MEASURING DEVICE

Номер: US20130342223A1
Автор: KATO Nobuhiro
Принадлежит:

A measuring device for measuring a property of fuel that flows in a fuel chamber, is provided with a substrate including an electrode-placing surface, and a pair of electrodes disposed on the electrode-placing surface with a space between n each other. The substrate is disposed in the fuel chamber so that the electrode-placing surface is inclined with respect to a horizontal direction. The fuel chamber may include an inlet into which the fuel flows, and an outlet out of which the fuel flows. An inlet-side end of the electrode-placing surface may be lower than an outlet-side end of the electrode-placing surface. 1. A measuring device for measuring a property of fuel that flows in a fuel chamber , the measuring device comprising:a substrate including an electrode-placing surface; anda pair of electrodes disposed on the electrode-placing surface with a space between each other; whereinthe substrate is disposed in the fuel chamber so that the electrode-placing surface is inclined with respect to a horizontal direction,the fuel chamber includes an inlet into which the fuel flows, and an outlet out of which the fuel flows, andan inlet-side end of the electrode-placing surface is lower than an outlet-side end of the electrode-placing surface.2. The measuring device according to claim 1 , whereinthe substrate is disposed in the fuel chamber so that the electrode-placing surface faces an inner surface of a bottom of a fuel tank,the fuel chamber includes a facing wall that faces the electrode-placing surface,the facing wall is formed in a set plate which closes an opening formed in the fuel tank,the fuel that is pumped from a fuel pump flows into the inlet,the fuel that has flowed from the inlet flows through a space between the electrode-placing surface and the facing wall in the fuel chamber, andthe fuel that is discharged to the fuel tank from the fuel chamber flows out from the outlet.3. The measuring device according to claim 2 , whereinan opening of the outlet on a fuel ...

Подробнее
Номер записи: 48
02-01-2014 дата публикации

SENSING METHOD

Номер: US20140004529A1
Автор: KUKITA Hiroyuki, SHINOBU WAKAKO, WAKAMATSU SHUNICHI
Принадлежит:

A sensing method includes supplying the sample solution to the adsorbing layer; subsequently supplying a first liquid to the adsorbing layer, the first liquid including a first sensitizer to bind with the object; subsequently discharging the first liquid from the adsorbing layer; subsequently supplying a second liquid to the adsorbing layer, the second liquid including a second sensitizer, the second sensitizer reacting to the first sensitizer to generate an insoluble material; obtaining a first frequency signal corresponding to an oscillation frequency of the oscillator circuit, the oscillation frequency being obtained by oscillating the piezoelectric resonator after liquid is supplied to the adsorbing layer and before the second liquid is supplied to the adsorbing layer; and obtaining a second frequency signal corresponding to an oscillation frequency of an oscillator circuit, the oscillation frequency being obtained by oscillating the piezoelectric resonator after the second liquid is supplied to the adsorbing layer. 1. A sensing method for sensing an object in a sample solution based on a frequency change corresponding to a mass of the object adhered to the electrode , using a piezoelectric resonator including a piezoelectric piece with an electrode with an adsorbing layer to capture the object , and oscillating the piezoelectric resonator in contact with a liquid by an oscillator circuit , the sensing method comprising:supplying the sample solution to the adsorbing layer;subsequently supplying a first liquid to the adsorbing layer, the first liquid including a first sensitizer to bind with the object;subsequently discharging the first liquid from the adsorbing layer;subsequently supplying a second liquid to the adsorbing layer, the second liquid including a second sensitizer, the second sensitizer reacting to the first sensitizer to generate an insoluble material;obtaining a first frequency signal corresponding to an oscillation frequency of the oscillator ...

Подробнее
Номер записи: 49
09-01-2014 дата публикации

Status monitoring system and status monitoring method for rolling device

Номер: US20140007657A1
Автор: Hisamitsu Maeda, Masayuki Kawakita, Noriaki Miwa, Takakazu KITAGAWA, Tomoya Sakaguchi, Yukio Matsubara
Принадлежит: NTN Corp

In order to provide a status monitoring system for accurately determining the contaminant water concentration in a lubricant oil used in a rolling device, the provision is made of a contaminant water concentration monitoring device ( 6 ) configured to monitor the contaminant water concentration in the lubricant oil ( 5 ). The contaminant water concentration monitoring device ( 6 ) includes an electrostatic capacitance detector ( 7 ) and an oil temperature measuring instrument ( 8 ), which are configured to detect the electrostatic capacitance and the oil temperature of the lubricant oil ( 5 ), respectively, and a water concentration calculation section ( 9 ) configured to detect the contaminant water concentration from the detected electrostatic capacitance and oil temperature in accordance with a predetermined rule.

Подробнее
Номер записи: 50
09-01-2014 дата публикации

Method and Apparatus for Monitoring and/or Controlling the Curing of Cements used in Medical Procedures

Номер: US20140009173A1
Автор: Baroud Gamal
Принадлежит: SOCIETE DE COMMERCIALISATION DES PRODUITS DE LA RECHERCHE APPLIQUEE SOCPRA SCI

An apparatus for determining an initiation point of cement curing, with a vessel for containing at least a portion of freshly mixed cement, means for passing an electric signal through the cement, means for detecting an abrupt change in a dielectric or electric property of the cement as a result of the electric signal and a display unit for displaying the initiation point of polymerization of the cement from the abrupt change in the dielectric or electric property detected, the change in the dielectric or electric property being a phase shift in the electric signal passed through the cement or a change in capacitive properties of the cement or a change in resistivity of the cement. 1. An apparatus for determining an initiation point of cement curing , comprising a vessel for containing at least a portion of freshly mixed cement , means for passing an electric signal through the cement , means for detecting an abrupt change in a dielectric or electric property of the cement as a result of the electric signal and a display unit for displaying the initiation point of polymerization of the cement from the abrupt change in the dielectric or electric property detected , the change in the dielectric or electric property being a phase shift in the electric signal passed through the cement or a change in capacitive properties of the cement or a change in resistivity of the cement.2. The apparatus as defined in including a sensor for passing and reading the electric signal made up of a pair of electrodes adapted to be placed in a spaced apart arrangement whereby the cement is placed between the electrodes and an electronic circuit is electronically connected to the electrodes.3. The apparatus as defined in wherein the vessel is a syringe forming part of a bone cement injection system.4. The apparatus as defined in wherein the vessel is a stand alone cement receiving container mounting the electrodes.5. The apparatus as defined in wherein the electrodes are mounted on outer ...

Подробнее
Номер записи: 51
09-01-2014 дата публикации

Wireless In-Kiln Moisture Sensor and System for Use Thereof

Номер: US20140009174A1
Автор: Schneider Scott, Youssi Patrick
Принадлежит:

A wood monitoring system and method is disclosed for monitoring lumber characteristics (e.g., lumber moisture) in environments of extremely high and prolonged temperature and moisture, e.g., a kiln. The monitoring system and method includes: 2. The method of claim 1 , wherein the timer outputs a notification when the first time limit is exceeded.3. The method of claim 1 , wherein the first time limit is at least twice the duration of the second time limit.4. The method of claim 1 , wherein the using step includes replacing the first time limit with the second time limit.5. The method of claim 1 , further including the steps of:obtaining an instance of the data during the first time limit;determining a value indicative of a change between the instance and a previous instance of the data;comparing the value to a predetermined change related condition indicative of particular changes between instances of the data; andwirelessly transmitting the instance to the device, via the wireless transmitter, when the comparing step yields a first result indicative of the predetermined change related condition occurring between the one instance and the previous instance, and not wirelessly transmitting the instance when the comparing step yields a second result indicative of the predetermined change related condition not occurring between the one instance and the previous instance.6. The method of claim 5 , wherein the predetermined change related condition includes a threshold for determining whether a temperature change between the one instance and the previous instance is out of a range corresponding with the threshold claim 5 , and wireless transmitting the one instance to the device when the temperature difference is out of the range.7. The method of claim 5 , wherein the predetermined change related condition includes a threshold for determining whether a humidity change between the one instance and the previous instance is out of a range corresponding with the threshold ...

Подробнее
Номер записи: 52
09-01-2014 дата публикации

3D RF MEMS biosensor for multiplexed label free detection

Номер: US20140011697A1
Автор: Kluger Andrew Michael, Pecht Michael G., Vasan Arvind Sai Sarathi
Принадлежит: Oxfordian, LLC

A label-free RF MEMS-based biosensor is described for detecting biomarkers in a given environment. The biosensor is capable of sensing the presence of biomarkers by exploiting both its mechanical and electrical characteristics. In addition, the method employed for detecting mechanical deflections due to antigen-antibody binding uses a simple electrical circuitry which allows the sensor to be used at any location and time. Such a sensor, when placed in a matrix like structure allows for the detection of multiple biomarkers simultaneously. 1. An RF MEMS based sensor comprising:a) a non conductive substrate;b) parallel, spaced-apart electrically conductive ground lines situated atop said substrate;c) a bottom electrode comprising a conductive signal line positioned between said spaced-apart ground lines, said signal line aligned in parallel to said ground lines;d) a top electrode comprising a flexible membrane having a top surface and a bottom surface, said membrane suspended above at least a portion of said signal line so as to define an air gap between them, said flexible membrane at each end supported by, and in electrical contact with said spaced apart ground lines;e) a dielectric layer covering a portion of said bottom electrode, said dielectric layer interposed between said bottom surface of the flexible membrane and the top surface of the conductive signal line; and,f) a coating of biorecognition elements disposed on the top surface of said flexible membrane.2. The sensor of wherein the biorecognition elements comprise immobilized antibodies.3. The sensor device of wherein immobilized antibodies are further disposed over the exposed surfaces of the ground and signal lines.4. The sensor of wherein the flexible membrane is made of aluminum.5. The sensor of wherein the signal line is disposed equidistant between said ground lines.6. The sensor of wherein the flexible membrane is disposed perpendicularly to said signal line.7. The sensor of wherein at least that ...

Подробнее
Номер записи: 53
16-01-2014 дата публикации

Detection circuit for capacitive sensor

Номер: US20140015550A1
Автор: Tomohiro Nezuka
Принадлежит: Denso Corp

A detection circuit for a capacitive sensor includes a drive signal generator for applying drive signal varying between first and second levels to a sensor common terminal, a sense amplifier having input terminals respectively connected to sensor detection terminals, and a controller for controlling input common-mode voltage of the sense amplifier to predetermined voltage. The controller includes a feedback amplifier for outputting feedback voltage according to difference between the common-mode and predetermined voltages, a pair of feedback capacitors having one ends respectively connected to the detection terminals and another ends connected together, and a voltage switcher for applying preset voltage, between the predetermined voltage and a limit voltage outputtable by the feedback amplifier in direction where the second level exists relative to the first level, to the other ends during the first level and the feedback voltage to the other ends during the second level.

Подробнее
Номер записи: 54
23-01-2014 дата публикации

METHOD OF DETECTING VOLATILE ORGANIC COMPOUNDS

Номер: US20140021967A1
Автор: Gryska Stefan H., Kang Myungchan, Palazzotto Michael C.
Принадлежит:

A method of using a sensor element includes: exposing a sensor element to an unknown analyte vapor; measuring a capacitance of the sensor element to obtain a measured capacitance; obtaining a true capacitance of the sensor element; exposing the semi-reflective conductive electrode to incident light and observing reflected light in order to measure a spectral change between the incident light and the reflected light; comparing the true capacitance and the measured spectral change, or at least one derivative thereof, to a reference library, the reference library comprising reference correlations between spectral change and true capacitance, or at least one derivative thereof, for a plurality of reference analyte vapors; and determining at least one of the chemical class or identity of the analyte vapor. 1. A method of using a sensor element , the method comprising the steps:a) providing a sensor element, the sensor element comprising a reflective conductive electrode, a semi-reflective conductive electrode, and a detection layer comprising dielectric optically-transmissive microporous material sandwiched between the reflective conductive electrode and the semi-reflective conductive electrode, wherein at least one of the semi-reflective conductive electrode or the reflective conductive electrode is permeable to an analyte vapor;b) determining a baseline capacitance and a baseline reflection spectrum for the sensor element at a temperature and humidity level;c) obtaining a capacitance of the sensor element while exposed to the analyte vapor to obtain a measured capacitance;d) obtaining a reflection spectrum of the sensor element while exposed to an analyte vapor to obtain a measured reflection spectrum comprising a spectral feature;e) obtaining a true capacitance of the sensor element, wherein the true capacitance is equal to the measured capacitance minus a baseline capacitance of the sensor element,f) obtaining a wavelength shift of the spectral feature, wherein the ...

Подробнее
Номер записи: 55
30-01-2014 дата публикации

Radiation-Blocking Structures

Номер: US20140026653A1
Автор: Bruce P. Del Signore, John O. O'Connell
Принадлежит: Silicon Laboratories Inc

Stacked layers of non-continuous opaque layer structures are disclosed herein that may be configured to block radiation such as visible light or other forms of light, while at the same time allowing penetration of ambient gases. In one example, such non-continuous opaque layer structures may be configured as stacked non-continuous metal layer structures that together fully block penetration of radiation while at the same provide sufficient open spaces between and/or within the metal layer segments of a given integrated circuit layer to meet maximum metal spacing rules. In another example, such non-continuous opaque layer structures may be configured as capacitive structures.

Подробнее
Номер записи: 56
30-01-2014 дата публикации

VAPOR SENSOR INCLUDING SENSOR ELEMENT WITH INTEGRAL HEATING

Номер: US20140028333A1
Автор: Gryska Stefan H., Palazzotto Michael C., Tungjunyatham Justin, Wendland Michael S.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A vapor sensor includes a capacitance-related property sensor element (), a heater circuit element (), a capacitance-related property measurement circuit element (), and at least one switch member (). The capacitance-related property sensor element includes a dielectric substrate (), a first conductive electrode (), a second conductive electrode (), and a layer of dielectric microporous material () disposed between and contacting the first conductive electrode and the second conductive electrode. The at least one switch member is capable of interrupting electrical communication between the first conductive electrode and the heater circuit element, and between the capacitance-related property measurement circuit element and the first conductive electrode. 1. A vapor sensor comprising: a dielectric substrate;', 'a first conductive electrode disposed on the dielectric substrate, the first conductive electrode having first and second ends;', 'a second conductive electrode; and', 'a dielectric layer comprising a microporous material disposed between and contacting the first conductive electrode and the second conductive electrode;, 'a capacitance-related property sensor element, the capacitance-related property sensor element comprisinga heater circuit element having first and second conductive members, wherein the first and second conductive members are in reversibly interruptible electrical communication with the first and second ends of the first conductive electrode, respectively;a capacitance-related property measurement circuit element, the capacitance-related property measurement circuit element having first and second conductive members, wherein the first conductive member of the capacitance-related property measurement circuit element is in reversibly interruptible electrical communication with the first conductive electrode, and wherein the second conductive member of the capacitance-related property measurement circuit element is in electrical communication ...

Подробнее
Номер записи: 57
13-03-2014 дата публикации

SENSOR FOR HUMIDITY AND MANAGEMENT SYSTEM THEREFOR

Номер: US20140069170A1
Автор: Seo Se Yeol
Принадлежит:

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

Подробнее
Номер записи: 58
13-03-2014 дата публикации

USING IN SITU CAPACITANCE MEASUREMENTS TO MONITOR THE STABILITY OF INTERFACE MATERIALS IN COMPLEX PCB ASSEMBLIES AND OTHER STRUCTURES

Номер: US20140070822A1
Автор: CHAINER Timothy J., Gaynes Michael A., Yarmchuk Edward J.
Принадлежит: INTERNATIONAL BUSINESS MACHINES CORPORATION

An electric potential is applied to first and second electrodes on opposite sides of a gap between an electronic component and a heat spreader. At least one of a thermal interface material in the gap, the electronic component and the heat spreader is subjected to a changing physical condition. The electrical capacitance between the electrodes is monitored during the changing physical condition. Such a method can be practiced using an array of components sharing a common heat spreader. An assembly for testing thermal interfaces includes a printed circuit board, a plurality of electronic components mounted to and operatively associated with the printed circuit board, a heat spreader positioned for absorbing heat generated by the electronic components, a first electrode associated with the heat spreader, a plurality of second electrodes associated, respectively, with the electronic component, and a device for monitoring electrical capacitances between the first and second electrodes. The technique may be employed for monitoring physical changes in electronic devices and other structures having interfaces between components. 1. An assembly for testing thermal interfaces , comprising:a printed circuit board;a plurality of electronic components mounted to and operatively associated with the printed circuit board;a heat spreader positioned for absorbing heat generated by the electronic components;a first electrode associated with the heat spreader;a plurality of second electrodes associated, respectively, with the electronic component; anda device for monitoring electrical capacitances between the first and second electrodes.2. The assembly of claim 1 , further comprising thermal interface material positioned between the first and second electrodes.3. The assembly of claim 2 , wherein the heat spreader comprises the first electrode.4. The assembly of claim 2 , further comprising an electric power source for providing power to the printed circuit board and the operatively ...

Подробнее
Номер записи: 59
20-03-2014 дата публикации

Humidity Sensor and Sensor Element Therefor

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

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

Подробнее
Номер записи: 60
20-03-2014 дата публикации

INTEGRATED CIRCUIT COMPRISING A CAPACITIVE GAS SENSOR

Номер: US20140077314A1
Автор: Gravestejin Dirk, Humbert Aurelie
Принадлежит:

An integrated circuit and a method of making the same. The integrated circuit includes a capacitive gas sensor on a semiconductor substrate. The gas sensor includes first and second capacitor electrodes on the substrate. The gas sensor also includes a gas sensitive material having a dielectric constant that is sensitive to a gas to be detected. The gas sensitive material at least partially surrounds the capacitor electrodes and extends between the capacitor electrodes and the substrate. 1. An integrated circuit comprising a capacitive gas sensor on a semiconductor substrate , the gas sensor comprising:first and second capacitor electrodes on the substrate; anda gas sensitive material having a dielectric constant that is sensitive to a gas to be detected, wherein the gas sensitive material at least partially surrounds the capacitor electrodes and extends between the capacitor electrodes and the substrate.2. The integrated circuit of claim 1 , wherein the capacitor electrodes are suspended over or within a cavity.3. The integrated circuit of claim 2 , wherein the gas sensitive material fills the cavity.4. The integrated circuit of claim 1 , wherein the capacitor electrodes are arranged within a plane parallel to a major surface of the substrate.5. The integrated circuit of claim 4 , wherein the first and second capacitor electrodes are arranged as a pair of interdigitated conductive lines.6. The integrated circuit of claim 1 , further comprising a metallization stack comprising a plurality of metallization layers claim 1 , wherein the gas sensitive material extends between the capacitor electrodes and at least some of the metallization layers.7. The integrated circuit of claim 6 , wherein the capacitor electrodes are comprised of one or more metal features of the metallization stack.8. The integrated circuit of claim 7 , wherein the capacitor electrodes are formed in a metal level or a via level of the metallization stack.9. The integrated circuit of claim 1 , wherein ...

Подробнее
Номер записи: 61
20-03-2014 дата публикации

HUMIDITY SENSOR AND METHOD OF MANUFACTURING THE SAME

Номер: US20140077824A1
Автор: Niimi Naohisa, Sakai Minekazu
Принадлежит: Denso Corporation

A humidity sensor includes a humidity detention section, a pad section, and a dam section. The humidity detention section includes a pair of detection electrodes facing each other on a predetermined surface of a substrate and a humidity-sensitive film covering the detection electrodes. The pad section is spaced from the humidity detection section on the surface and covered with a protection gel section. The dam section is located between the humidity detection section and the pad section on the surface. The dam section includes a dam wire that is made from the same material as the detection electrodes and a dam humidity-sensitive film that is made from the same material as the humidity-sensitive film and covers at least part of the dam wire. 1. A humidity sensor comprising:a humidity detention section including a pair of detection electrodes and a humidity-sensitive film, the detection electrodes facing each other on a humidity detection section formation surface of a substrate, the humidity-sensitive film covering the detection electrodes and a gap between the detection electrodes;a pad section as an external connection terminal, the pad section being spaced from the humidity detection section on the humidity detection section formation surface of the substrate and covered with a protection gel section under a condition where a bonding wire is connected to the pad section; anda dam section located between the humidity detection section and the pad section on the humidity detection section formation surface of the substrate to restrain the protection gel section from flowing from the pad section side to the humidity detection section side, whereinthe dam section includes a dam wire and a dam humidity-sensitive film,the dam wire is made from the same material as the detection electrodes and located on the same surface as the detection electrodes, andthe dam humidity-sensitive film is made from the same material as the humidity-sensitive film and covers at least part ...

Подробнее
Номер записи: 62
02-01-2020 дата публикации

SOIL SENSOR ASSEMBLY

Номер: US20200000050A1
Автор: Haran Yossi
Принадлежит:

A soil sensor assembly and methods of measuring undisturbed soil are disclosed. The soil sensor assembly can be a volumetric water content (VWC) sensor. The soil sensor assembly can include at least one soil probe. The soil probes can be secured to a support to enable an installation of the soil sensor assembly in a target soil. The soil probes can include helical blades secured concentrically along the support at predefined longitudinal locations. The soil probes can include at least one radiofrequency (RF) electrode secured to the helical blades at a predefined radial distance from a longitudinal axis of the support. The soil sensor assembly can also include at least one electronics unit coupled to the RF electrodes to receive and/or transmit RF signals from the RF electrodes. The soil sensor assembly can enable a self-tapping installation action and/or enable alienating the soil measurements (e.g., by RF electrodes) away from a disturbed soil. 1. A volumetric water content (VWC) sensor comprising:a support to enable installation of the VWC sensor in a target soil; a helical blade secured along its inner lateral side to an outer surface of the support, and', 'at least one radiofrequency (RF) electrode secured to the helical blade at a predefined radial distance from the support; and, 'at least one VWC probe positioned at a predefined longitudinal location along the support, the at least one VWC probe comprisingat least one electronics unit coupled to the at least one RF electrode to transmit and receive RF signals from the at least one RF electrode.2. The VWC sensor of claim 1 , wherein the at least one of the RF electrode of the at least one of the VWC probe has a helical shape that corresponds to shape of the helical blade of that VWC probe.3. The VWC sensor of claim 1 , wherein the at least one of the RF electrode of the at least one of the VWC probe is secured to an outer lateral side of the helical blade of that VWC probe.4. The VWC sensor of claim 3 , ...

Подробнее
Номер записи: 63
02-01-2020 дата публикации

INSECT DETECTION METHOD, GAS SENSOR FOR INSECT DETECTION, GAS SENSOR ARRAY FOR INSECT DETECTION, AND ELECTRIC MACHINE PRODUCT

Номер: US20200000078A1
Автор: AIKI Yasuhiro, MOCHIZUKI Fumihiko, SANO Takahiro, Takaku Koji
Принадлежит: FUJIFILM Corporation

Provided are an insect detection method that includes detecting an intrinsic gas emitted by an insect using a gas sensor including a gas adsorption membrane, the gas sensor being selected from a resonant sensor, an electrical resistance sensor, and a field effect transistor sensor; a gas sensor for insect detection and a gas sensor array for insect detection, which are suitable to be used for this method; and an electric machine product having the gas sensor or gas sensor array mounted therein. 1. An insect detection method , comprising detecting an intrinsic gas emitted by an insect using a gas sensor including a gas adsorption membrane ,wherein the gas sensor is selected from a resonant sensor, an electrical resistance sensor, and a field effect transistor sensor, andwherein the gas adsorption membrane comprises a gas adsorption material selected from a polyvinyl stearate, polybutyl methacrylate, polymethylstyrene, polyethylene oxide, polyethylene chloride, polyethylene vinyl acetate, polytribromostyrene, polycaprolactone, polyvinylphenol, polyvinyl acetate, polyhydroxyethyl methacrylate, triacetyl cellulose, and polyvinylpyrrolidone.2. The insect detection method according to claim 1 , wherein the dielectric material carried by the resonant sensor is a ceramic dielectric material or a quartz crystal.3. The insect detection method according to claim 2 , wherein the ceramic dielectric material is lead zirconate titanate claim 2 , niobium-doped lead zirconate titanate claim 2 , zinc oxide claim 2 , or aluminum nitride.4. The insect detection method according to claim 1 , wherein the method includes detecting an intrinsic gas emitted by an insect using a plurality of gas sensors claim 1 , and the plurality of gas sensors have mutually different gas responsiveness.5. The insect detection method according to claim 4 , wherein an insect is detected on the basis of a pattern of gas detection signals by the plurality of gas sensors.6. The insect detection method according ...

Подробнее
Номер записи: 64
01-01-2015 дата публикации

METHODS, APPARATUSES AND SYSTEMS FOR SENSING EXPOSURE OF ELECTRONIC DEVICES TO MOISTURE

Номер: US20150001200A1
Автор: Harper Marcellus, Maynard Jason
Принадлежит:

Systems, devices and methods for sensing moisture within an electronic device are disclosed. A device may include a housing and a display defining an exterior of an electronic device and an interior of the electronic device. Further, the device may include an integrated circuit (IC) within the electronic device and a control element within the electronic device. The device may also include a moisture sensor such as an inductive sensor, a capacitance sensor, or both. The moisture sensor, which may be part of the IC, together with the control element may sense moisture within the electronic device. 1. An electronic device , comprising:a housing and a display defining an exterior of an electronic device and an interior of the electronic device;an integrated circuit (IC) within the electronic device and comprising a control element; anda moisture sensor comprising at least one of an inductive sensor and a capacitance sensor, the moisture sensor being coupled to or part of the IC and associated with the control element, the moisture sensor and the control element together being configured to sense moisture within the electronic device.2. The electronic device of claim 1 , further comprising a heating element coupled to the IC and configured to generate heat in response to moisture being sensed within the electronic device.3. The electronic device of claim 2 , the heating element comprising one or more heating traces.4. The electronic device of claim 1 , further comprising an oscillator configured to convey a clock signal to the moisture sensor and the control element.5. The electronic device of claim 1 , wherein the control element is programmable via a communications module of the IC.6. The electronic device of claim 1 , the moisture sensor comprising a capacitance sensor including a shield at least partially surrounding a sense element and separated from the sense element by an air gap.7. The electronic device of claim 1 , wherein the control element includes one or ...

Подробнее
Номер записи: 65
05-01-2017 дата публикации

SENSOR ARRANGEMENT AND METHOD FOR DETERMINING AT LEAST ONE PHYSICAL PARAMETER

Номер: US20170003144A1
Автор: Reime Gerd
Принадлежит:

A sensor arrangement for determining at least one physical parameter of a sensor unit which is activated by at least one periodic excitation, comprising a detection region in which changes of the parameter in the surroundings of the sensor unit lead to an output signal from the sensor unit. The sensor unit is wired such that if there is no change of the parameter in the detection region the output signal is a zero signal at the output of the sensor unit, whereas if there are changes of the parameter in the detection region the output signal is a signal that is not zero and which has a specific amplitude and phase. By means of a closed-loop control, the non-zero signal in the receive path is adjusted to achieve an adjusted state at zero even in the presence of changes of the parameter in the detection region. Inherent in the control signal used for this adjustment is a deviation (Δx, Δy) of the control signal from the adjusted state, which deviation represents information about the parameter. To create a sensor arrangement and a method in which values of a physical parameter in a detection region can be clearly determined, in a four-quadrant representation of the deviation (Δx, Δy) in the form of a vector analysis in a phase space of the control signal, the angle of an imaginary vector () relative to the x axis of an x, y coordinate system, said vector leading from the origin () of the x, y coordinate system to a measuring point () and said origin corresponding to the adjusted state, represents a measurement for the change of the parameter along a direction, and/or the magnitude of the imaginary vector () represents a measurement for the change of the parameter along a further direction. 119.-. (canceled)20. A sensor arrangement for inductive or capacitive detection of at least one target by determining at least one physical parameter by means of a sensor unit that is excited by at least one periodic excitation , wherein the sensor unit has at least one detection ...

Подробнее
Номер записи: 66
05-01-2017 дата публикации

SENSOR DEVICE

Номер: US20170003241A1
Автор: KATO Nobuhiro
Принадлежит:

A sensor device includes a fuel passage through which fuel ejected from a fuel pump in a fuel tank flows; and detection electrodes configured to make contact with fuel flowing through the fuel passage to detect a concentration of alcohol contained in the fuel (a first property of the fuel), and a throttle configured to resist a flow of the fuel on a downstream side of the detection electrodes is provided in the fuel passage. 1. A sensor device comprising:a fuel passage through which fuel ejected from a fuel pump in a fuel tank flows; anda detection electrode configured to make contact with fuel flowing through the fuel passage to detect a first property of fuel,whereina first resistance portion configured to resist a flow of fuel on a downstream side of the detection electrode is provided in the fuel passage.2. The sensor device according to claim 1 , whereina second resistance portion configured to resist the flow of fuel on an upstream side of the detection electrode is provided in the fuel passage, anda resistance of the first resistance portion to the flow of fuel is greater than a resistance of the second resistance portion to the flow of fuel.3. The sensor device according to claim 1 , further comprising:a set plate attached to the fuel tank;a first case housing the detection electrode and forming a part of the fuel passage; anda cover case formed integrally with the set plate, and covering the first case,whereina first discharge port configured to discharge fuel in the first case to outside is provided in the first case,a second discharge port communicating with the first discharge port of the first case is provided in the cover case, andthe first resistance portion is formed by the second discharge port.4. The sensor device according to claim 1 , further comprising:a set plate attached to the fuel tank; anda first case housing the detection electrode and forming a part of the fuel passage;whereina discharge port configured to discharge fuel in the first case ...

Подробнее
Номер записи: 67
05-01-2017 дата публикации

METHOD FOR DETECTING CONTACT OF A PIPETTING NEEDLE

Номер: US20170003242A1
Автор: Wiedekind-Klein Alexander
Принадлежит:

The invention relates to a method for detecting contact of a pipetting needle in an in vitro diagnostic system. To this end, the pipetting needle, in an advantageous embodiment of the invention, should be cyclically charged by an electric voltage or current applied between the pipetting needle and a reference potential and discharged again by a subsequent electric connection between the pipetting needle and the reference potential. A characteristic variable for the current capacitance between the pipetting needle and the reference potential should be established from a number of measured values detected during the charging and/or discharging. A temporal curve of the characteristic variable should be monitored continuously based on a number of predetermined criteria and a contact signal should be generated if the predetermined criteria are satisfied. 1. A method for detecting contact of a pipetting needle in an in vitro diagnostic system , the method comprising:cyclically charging the pipetting needle by an electric voltage or current applied between the pipetting needle and a reference potential and cyclically discharging by a subsequent electric connection between the pipetting needle and the reference potential,establishing a characteristic variable for a current capacitance between the pipetting needle and the reference potential from a number of measured values detected during the charging and discharging, andmonitoring continuously a temporal curve of the characteristic variable based on a number of predetermined criteria and generating a contact signal if the predetermined criteria are satisfied.2. The method as claimed in claim 1 , wherein a predetermined criterion is given by the characteristic variable being increased by a minimum value within a first predetermined period of time.3. The method as claimed in claim 2 , wherein the predetermined period of time is less than 10 ms.4. The method as claimed in claim 2 , wherein a fixed minimum value is ...

Подробнее
Номер записи: 68
05-01-2017 дата публикации

SENSOR DEVICE

Номер: US20170003265A1
Автор: KATO Nobuhiro
Принадлежит:

A sensor device 1 includes a fuel property sensor 5 configured capable of detecting a property of fuel that is ejected from a fuel pump 4 in a feel tank 2; a guiding line 12 configured to guide fuel ejected from the fuel pump 4 to the fuel property sensor 5; and a relief valve 21 configured to allow fuel to flow out of the guiding line 12 when a pressure of fuel in the guiding 12 becomes equal to or higher than a predetermined pressure. 1. A sensor device comprising:a fuel property sensor configured capable of detecting a property of fuel ejected from a fuel pump in a fuel tank;a guiding line configured to guide fuel ejected from the fuel pump to the fuel property sensor; anda relief valve configured to allow fuel to flow out of the guiding line when a pressure of fuel in the guiding line becomes equal to or higher than a predetermined pressure.2. The sensor device according to claim 1 , further comprisinga return line branching from the guiding line and configured to return fuel into the fuel tank,whereinthe relief valve is arranged in the return line.3. The sensor device according to claim 1 , further comprisinga transportation line branching from the guiding line,whereinthe transportation line is connected to a jet pump configured to introduce fuel in the fuel tank into a reserve cup arranged in the fuel tank, and send fuel from the guiding line to the jet pump.4. The sensor device according to claim 1 , whereinthe fuel property sensor comprises a case forming a housing space capable of housing fuel whose property is to be detected, and a block portion formed integrally with the case,a flowing portion is provided in the block portion, wherein the flowing portion communicates with the housing space, the guiding line and the return line, and is configured to allow fuel flowing from the guiding line to flow therethrough, andthe relief valve is arranged in the flowing portion.5. The sensor device according to claim 1 , further comprisinga set plate attached to the ...

Подробнее
Номер записи: 69
07-01-2016 дата публикации

CAPACITOR TYPE HUMIDITY SENSOR

Номер: US20160003758A1
Автор: HONG Ju Hyun
Принадлежит: MAGNACHIP SEMICONDUCTOR, LTD.

A capacitor type humidity sensor consisting of a humidity sensing region or a peripheral circuit region is provided. A capacitor type humidity sensor may include a semiconductor substrate comprising a humidity sensing region and a peripheral circuit region, a sensing capacitor disposed on the humidity sensing region and the sensing capacitor comprising a humidity sensitive layer, a dielectric layer made of a material different than from the humidity sensitive layer, and a reference capacitor configured to provide a reference capacitance value, wherein the sensing capacitor and the reference capacitor are disposed on different planes from each other. A reference capacitor is disposed at an arbitrary region under a sensing capacitor among a humidity sensing region or at a peripheral circuit region. The reference capacitor is a metal-insulator-metal (MIM) capacitor or a polysilicon-insulator-polysilicon (PIP) capacitor. 1. A capacitor type humidity sensor comprising:a semiconductor substrate comprising a humidity sensing region and a peripheral circuit region;a sensing capacitor disposed on the humidity sensing region and the sensing capacitor comprising a humidity sensitive layer;a dielectric layer made of a material different than the humidity sensitive layer; anda reference capacitor configured to provide a reference capacitance value,wherein the sensing capacitor and the reference capacitor are disposed on different planes from each other.2. The sensor of claim 1 , wherein the reference capacitor is aligned under the sensing capacitor.3. The sensor of claim 2 , wherein an MIM (metal insulator metal) capacitor in the form of array is used as the reference capacitor.4. The sensor of claim 2 , wherein a PIP (polysilicon insulator polysilicon) capacitor in the form of array is used as the reference capacitor.5. The sensor of claim 1 , further comprising a feedback capacitor configured to provide a feedback capacitance value (C) claim 1 , wherein a dielectric layer of ...

Подробнее
Номер записи: 70
07-01-2016 дата публикации

Modular Stretchable and Flexible Capacitance Sensors for Use with Electrical Capacitance Volume Tomography & Capacitance Sensing Applications

Номер: US20160003759A1
Автор: Alghothani Yousef, Marashdeh Qussai
Принадлежит:

A flexible capacitance sensor having multiple layers for communicating signals to a data acquisition system for reconstructing an image of an area or object located in a subject being sensed, the flexible capacitance sensor having a flexible layer of capacitance plates; a flexible shielding ground layer next to the layer of capacitance plates; a flexible layer of signal traces next to the shielding ground layer, where the layer of signal traces has a plurality of trace lines; and where the capacitance sensor is flexible and adapted to be wrapped around the subject being sensed. The sensor is adapted to communicate signals via the plurality of trace lines to a data acquisition system for providing an image of the area or object between the capacitance plates. 1. A flexible capacitance sensor for communicating signals to a data acquisition system for reconstructing an image of an area or object located in a subject being sensed , comprised of:a flexible layer of capacitance plates;a plurality of trace lines for communicating signals from the capacitance plates to the data acquisition system;wherein the capacitance sensor is flexible and adapted to be wrapped around the subject being sensed;wherein the capacitance plates in the flexible layer of capacitance plates are individually addressable; andwherein the sensor is adapted to communicate signals to the data acquisition system for use in reconstructing an image of the area or object between the capacitance plates.2. A flexible capacitance sensor according to claim 1 , further comprised of:a flexible shielding ground layer in between the layer of capacitance plates and the plurality of signal traces;a first flexible isolative layer between the flexible layer of capacitance plates and the flexible shielding ground layer; anda second flexible isolative layer between the flexible shielding ground layer and the plurality of signal traces.3. A flexible capacitance sensor according to claim 2 , wherein the first and second ...

Подробнее
Номер записи: 71
07-01-2016 дата публикации

METHODS FOR GENERATING pH/IONIC CONCENTRATION GRADIENT NEAR ELECTRODE SURFACES FOR MODULATING BIOMOLECULAR INTERACTIONS, AND BUBBLE DETECTION USING ELECTRODES

Номер: US20160003763A1
Автор: Aldrich Lau, Christopher Johnson, Habib Ahmad, Nadezda Fomina, Piyush Verma, Rajan Gangadharan, Sam Kavusi, Tobias Funk
Принадлежит: ROBERT BOSCH GMBH

Device and methods for use in a biosensor comprising a multisite array of test sites, the device and methods being useful for modulating the binding interactions between a (biomolecular) probe or detection agent and an analyte of interest from a biological by modulating the pH or ionic gradient near the electrodes in such biosensor. An electrochemically active agent that is suitable for use in biological buffers for changing the pH of the biological buffers. Method for changing the pH of biological buffers using the electrochemically active agents. The methods of modulating the binding interactions provided in a biosensor, analytic methods for more accurately controlling and measuring the pH or ionic gradient near the electrodes in such biosensor, and analytic methods for more accurately measuring an analyte of interest in a biological sample.

Подробнее
Номер записи: 72
03-01-2019 дата публикации

METHOD AND ELECTRONIC DEVICE FOR DETERMINING THE CONCENTRATION OF AN ANALYTE

Номер: US20190002948A1
Автор: Ferapontova Elena
Принадлежит:

A method is provided for determining, the presence and concentration of an analyte by contacting said sample with a solution comprising: magnetic beads, a capture probe capable of binding said analyte, a reporter probe and cellulose, whereby, if the analyte is present, an MB-analyte-reporter-cellulase sandwich is formed; and then contacting said solution comprising said sandwich with an electrode covered with an electrically insulating layer comprising or consisting of cellulose and/or a cellulose derivative, wherein the MB-analyte-reporter-cellulase sandwich leads to degradation of the insulating layer thereby causing a measurable change in electrical properties at the electrode surface, wherein said change in electrical properties is a function of the amount of analyte in said sample. Devices and biosensor applying the method are also provided. 115.-. (canceled)17. The method according to claim 16 , wherein the cellulase is added to the solution after addition of the magnetic beads claim 16 , the capture probe and the reporter probe claim 16 , whereby claim 16 , if the analyte is present claim 16 , an MB-analyte-reporter complex is formed before addition of cellulase.18. The method according to claim 16 , wherein said reporter probe is added to the solution after addition of the magnetic beads and the capture probe claim 16 , whereby claim 16 , if the analyte is present claim 16 , an MB-analyte complex is formed before addition of reporter probe.19. The method according to claim 16 , further comprising a step of isolating said MB-analyte-reporter-cellulase sandwich from the sample using a magnet.20. The method according to claim 17 , further comprising a step of isolating said MB-analyte-reporter complex from the sample using a magnet.21. The method according to claim 18 , further comprising a step of isolating said MB-analyte complex from the sample using a magnet.22. The method according to claim 16 , wherein said analyte is an oligonucleotide claim 16 , a ...

Подробнее
Номер записи: 73
04-01-2018 дата публикации

SENSOR HAVING POROUS MATERIAL OR PARTICULATE MATERIAL AS RECEPTOR LAYER

Номер: US20180003604A1
Автор: IMAMURA Gaku, MINAMI Kosuke, SHIBA Kota, SUZUKI Norihiro, YAMAUCHI Yusuke, YEUNG Hamish Hei-Man, YOSHIKAWA Genki
Принадлежит: NATIONAL INSTITUTE FOR MATERIALS SCIENCE

According to improvement of the receptor layer of various sensors of the type for detecting physical parameters (for example, a surface stress sensor, QCM, and SPR), all of high sensitivity, selectivity, and durability are achieved simultaneously. A porous material or a particulate material, e.g., nanoparticles, is used in place of a uniform membrane which has been conventionally used as a receptor layer. Accordingly, the sensitivity can be controlled by changing the membrane thickness of the receptor layer, the selectivity can be controlled by changing a surface modifying group to be fixed on the porous material or particulate material, and the durability can be controlled by changing the composition and surface properties of the porous material or particulate material. 123-. (canceled)24. A surface stress sensor comprising:a sensor body for detecting a surface stress; anda porous or particulate material coated over the sensor body;wherein a sample molecule is detected based on a change in the surface stress caused by adsorption of the sample molecule by the porous or particulate material.25. The surface stress sensor according to claim 24 , wherein the porous or material consists of an inorganic material.26. The surface stress sensor according to claim 25 , wherein the inorganic material is silica.27. The surface stress sensor according to claim 24 , wherein the porous or particulate material is a porous material with an average pore diameter of 1 mm or less.28. The surface stress sensor according to claim 27 , wherein the average pore diameter of the porous material is 0.1 nm or more and 500 nm or less.29. The surface stress sensor according to claim 26 , wherein the silica is mesoporous silica.30. The surface stress sensor according to claim 24 , wherein the porous or particulate material is selected from a group consisting of an inorganic material claim 24 , an organic material claim 24 , an inorganic-organic hybrid material claim 24 , a metal organic framework ...

Подробнее
Номер записи: 74
04-01-2018 дата публикации

CHEMICAL SENSOR, AND CHEMICAL SUBSTANCE DETECTION METHOD AND DEVICE

Номер: US20180003663A1
Автор: HO Shirun, Kameshiro Norifumi, NAGATA Sanato, Takahashi Hiromasa
Принадлежит:

There is a provided a chemical sensor that includes a semiconductor substrate of a first conductivity type, a first electrode that is formed on a front surface of the semiconductor substrate, a second electrode that is disposed to face the first electrode in a vertical direction, a flow path in which a liquid or a gas can flow between the first electrode and the second electrode, and a chemical substance capturing portion that is disposed in at least a partial region between the first electrode and the second electrode in the flow path, and bonded with a predetermined chemical substance, and in which a distance between the first electrode and the second electrode is set to be 2 nm or more and 200 nm or less, and a change in dielectric constant between the first electrode and the second electrode is detected. 1. A chemical sensor comprising:a semiconductor substrate of a first conductivity type;a first electrode that is formed on a front surface of the semiconductor substrate;a second electrode that is disposed to face the first electrode in a vertical direction;a flow path in which a liquid or a gas can flow between the first electrode and the second electrode; anda chemical substance capturing portion that is disposed in at least a partial region between the first electrode and the second electrode in the flow path, and bonded with a predetermined chemical substance,wherein a distance between the first electrode and the second electrode is set to be 2 nm or more and 200 nm or less, anda change in dielectric constant between the first electrode and the second electrode is detected.2. The chemical sensor according to claim 1 ,wherein the first electrode is configured as a common electrode,the second electrode is configured as a plurality of second electrodes that are formed apart from each other,the first electrode is set to be a first potential, and the plurality of second electrodes are set to be second potentials, andan electrostatic capacitance between the first ...

Подробнее
Номер записи: 75
02-01-2020 дата публикации

METHOD AND APPARATUS FOR DETERMINING PROPERTIES OF A CONTAINED FLUID

Номер: US20200003670A1
Автор: Foster-Turner Richard, HUNT Andrew
Принадлежит:

In order to measure a fluid flow or flow conditions of a fluid flow through an apparatus, electrodes are provided across which capacitance values are determined. The capacitances are used in conjunction with a predetermined model to determine a revised model for the system. If the modelled to be satisfactory, then the values representative of the flow conditions are output. If it is not, then the model is tuned to reduce the error. A novel arrangement of electrodes is also provided along with apparatus embodying the method. The invention also provides a way of determining fluid properties, for example, density, volume present contained within a vessel or tank whether flowing or stationary. 1. A method for determining a flow of a fluid comprising the steps of: providing an arrangement of electrodes to , in use , be exposed to a fluid flow; providing a first model of a fluid flow for a particular arrangement of electrodes; providing a set of penalty functions; providing the fluid flow; determining from the electrodes a set of capacitance values; deriving from the set of values and the first model a second model of fluid flow; comparing the second model of fluid flow with the set of values to provide a global system penalty; and comparing the global system penalty with a predetermined threshold value and , responsive to the comparison , modifying the first model or outputting a rate of flow determined from the set of values and the second model of fluid flow.2. A method as claimed in wherein the penalty functions are a difference between a predicted set of capacitances and measured set of capacitances.3. A method as claimed in wherein the first model is a reverse model of flow conditions relative to potential electrode capacitance values.4. A method as claimed in wherein the second model is a forward model of measured electrode capacitance or resistance values relative to flow conditions.5. Apparatus for determining fluid flow comprising: an arrangement of electrodes ...

Подробнее
Номер записи: 76
02-01-2020 дата публикации

MEMS SENSORS

Номер: US20200003719A1
Автор: KODUR Karthikeya, Wilson Paul
Принадлежит: Cirrus Logic International Semiconductor Ltd.

This application relates to methods and apparatus for operating MEMS sensors, in particular MEMS capacitive sensors (C) such as a microphones. An amplifier apparatus is arranged to amplify an input signal (V) received at a sense node from the MEMS capacitive sensor. An antiphase signal generator generates a second signal (V) which is in antiphase with the input signal (V) and an amplifier arrangement is configured to receive the input signal (V) at a first input and the second signal (V) at a second input and to output corresponding amplified first and second output signals. This converts a single ended input signal effectively into a differential input signal. 1. An amplifier apparatus for amplifying an input signal from a MEMS capacitive sensor comprising:a sense node for receiving the input signal;an antiphase signal generator for generating a second signal which is in antiphase with the input signal; andan amplifier arrangement configured to receive the input signal at a first input and the second signal at a second input and to output corresponding first and second output signals,wherein the amplifier arrangement comprises a first single-ended amplifier for amplifying the input signal, andwherein the first amplifier comprise an input transistor with a gate terminal connected to the sense node and a bootstrap circuit for driving a drain terminal of the input transistor in phase with the first output signal.2. An amplifier arrangement as claimed in further comprising biasing circuitry for generating a bias voltage for biasing the MEMS capacitive sensor at a biasing node wherein the amplifier arrangement is configured to modulate the bias voltage at the bias node with a modulation signal based on the second signal.3. An amplifier arrangement as claimed in comprising a feedback path for feeding the second signal or the second output signal back to the biasing node.4. An amplifier arrangement as claimed in wherein said feedback path comprises a biasing capacitor.5. ...

Подробнее
Номер записи: 77
02-01-2020 дата публикации

OIL CONTENT SENSOR

Номер: US20200003730A1
Автор: Davis Richard J., Melnik Martin V., WINECKI SLAWOMIR
Принадлежит:

The present disclosure relates to systems and methods for measuring oil/water content in oil-water mixtures, regardless of the salinity of the mixture and regardless of air in the sensor pipe. In some embodiments, the oil content is measured using a dielectric sensor. It is determined whether the oil content is above or below a threshold. If the oil content is above the threshold, the oil content is reported using the measurement from the dielectric sensor. If the oil content is below the threshold, the oil content is reported using the measurement from the eddy current sensor. In some embodiments, which improve performance when there is air in the sensor pipe, two dielectric sensors with different geometries are used instead of the one dielectric sensor. 1. A system for measuring oil content of a fluid , comprising:a pipe having a cavity configured to hold air, oil, and water; a first side electrode on a first side of the pipe; and', 'a second side electrode on a second side of the pipe, wherein the first side of the pipe is opposite the second side of the pipe; and, 'a first dielectric sensor, comprising a top electrode on a top of the pipe; and', 'a bottom electrode on a bottom of the pipe., 'a second dielectric sensor, comprising2. The system of claim 1 , wherein:an inner surface of the top of the pipe is in contact with the air;an inner surface of the bottom of the pipe is in contact with the water;an inner surface of the first side of the pipe is in contact with all of the air, the oil and the water; andan inner surface of the second side of the pipe is in contact with all of the air, the oil and the water.3. The system of claim 1 , further comprising an eddy current sensor claim 1 , comprising:a resonance circuit formed by a capacitor, and an inductor configured to produce a magnetic field within the cavity; anda SWR analyzer configured to measure a height of a peak of a resonance frequency of the resonance circuit.4. The system of claim 3 , further ...

Подробнее
Номер записи: 78
07-01-2021 дата публикации

Measurement apparatus

Номер: US20210003460A1
Автор: Brian Hardy Cobb, Joao DE OLIVEIRA, Kenneth David WILLIAMSON, Thomas Clark
Принадлежит: Pragmatic Printing Ltd

Measurement apparatus, for generating a first output signal indicative of a measurand, comprises: a first oscillator circuit and a second oscillator circuit, each oscillator circuit being arranged to generate a respective oscillating output signal and comprising at least a respective first component having a property determining a respective output frequency of the respective oscillating output signal; a sensor for sensing said measurand, the sensor comprising said first component of the first oscillator circuit, said property of said first component of the first oscillator circuit being dependent upon said measurand; and circuitry arranged to receive said oscillating output signals and generate said first output signal, said first output signal being indicative of a number of cycles of one of the first and second oscillating output signals in a time period determined by a period of the other of said first and second oscillating output signals.

Подробнее
Номер записи: 79
02-01-2020 дата публикации

Sensor Device

Номер: US20200003813A1
Автор: KOYAMA Tatsunari, Nakatsu Akira
Принадлежит: NIPPON PILLAR PACKING CO., LTD.

The present invention intends to provide a liquid sensor device that achieves both the improvement of durability and the improvement of property determination accuracy. The liquid sensor device includes: an electrode pair that is formed on a sensor board and covered by an insulating protective film ; a resistance measurement part that supplies AC current to the electrode pair to measure the resistance value of oil ; a parasitic capacitance storage part that holds the parasitic capacitance Cs of the electrode pair ; and a property determination part that, on the basis of the resistance value R and the parasitic capacitance Cs, determines the deterioration of the oil 1. A sensor device comprising:a first electrode pair that is formed on a board and covered by an insulating protective film;a resistance measurement part that supplies AC current to said first electrode pair to measure a resistance value of a medium around said first electrode pair;a storage part that holds parasitic capacitance of said first electrode pair; anda property determination part that, on a basis of said resistance value and said parasitic capacitance, determines a property of said medium.2. The sensor device according to claim 1 , comprisinga measurement error correction part that, on a basis of said parasitic capacitance, corrects a measurement error of said resistance value, whereinsaid property determination part determines the property of said medium on a basis of said resistance value after the correction.3. The sensor device according to claim 1 , whereinsaid resistance measurement part measures impedance of said first electrode pair at a time of supplying AC current having a frequency of 5 kHz or less.4. The sensor device according to claim 1 , whereinsaid parasitic capacitance has a value measured as impedance of said first electrode pair at a time of supplying the AC current to said first electrode pair that is not close to said medium.5. The sensor device comprising according to :a ...

Подробнее
Номер записи: 80
07-01-2021 дата публикации

WIRELESS DETECTION OF ELECTRICALLY OR MAGNETICALLY LABELED ANALYTES

Номер: US20210003567A1
Автор: Alocilja Evangelyn C., Chahal Premjeet, Karuppuswami Saranraj, Matta Leann Lerie
Принадлежит:

The disclosure relates to wireless detection of analytes (such as bacteria) labeled by electrically, dielectrically, or magnetically active nanoparticles, for example in quality control monitoring for food supply chain management. The disclosed apparatus includes a detection vessel or vial, a resonant sensor tag, an inductively coupled reader to induce and detect resonance in the sensor tag, and an active nanoparticle for labeling. The disclosed wireless detection apparatus and methods use active nanoparticles for the development of wireless sensor systems which can be designed to be compatible with the existing RFID technology infrastructure. For example, commercial RFID readers (e.g., hand-held) used for tracking and tracing operation can be used with the disclosed apparatus to induce and measure a corresponding resonance frequency. 1. A method for wireless , non-specific detection of electrically , dielectrically , or magnetically labeled analytes , the method comprising: a vessel comprising a wall defining an internal sample volume and an external surface, wherein (i) the internal sample volume is adapted to receive a sample containing or suspected of containing an analyte, and (ii) the wall is adapted to non-specifically bind with both the analyte and a capped nanoparticle label; and', 'a resonant tag, positioned at the external surface of the vessel, wherein the resonant tag is adapted to (i) wirelessly receive an induced voltage from an inductively coupled reader, and (ii) correspondingly resonate at a selected resonance frequency in the absence of an additional capacitive load; and, 'providing a detection apparatus comprisingadding a sample containing or suspected of containing the analyte to the internal sample volume of the vessel;incubating the sample for a time sufficient to non-specifically bind analyte present in the sample to the wall of the vessel;adding a capped nanoparticle label to the internal sample volume of the vessel, the capped nanoparticle ...

Подробнее
Номер записи: 81
03-01-2019 дата публикации

COMBINED WATER CUT AND SALINITY METER

Номер: US20190003996A1
Автор: Black Michael John, Noui-Mehidi Mohamed N.
Принадлежит: Saudi Arabian Oil Company

Disclosed is a flow meter and method for measuring water cut and salinity of a multiphase mixture. The water-cut meter includes a conduit configured to receive the multiphase mixture, and a probe array configured to measure a cross-sectional area of the conduit. The probe array includes a plurality of coaxial probes connected in parallel. Optionally, the probe array is configured to operate at a single high frequency, for example, 1 to 3 GHz, to minimize conductivity loss relative to capacitance. The flow meter further includes a processor configured to transmit a signal to the probe array and to receive a reflected signal from the probe array using a single channel. The processor is further configured to calculate the water cut and the salinity of the multiphase mixture based on a single complex permittivity of the multiphase mixture calculated from the received reflected signal. 1. A flow meter for measuring water cut and salinity of a multiphase mixture , the flow meter comprising:a conduit configured to receive the multiphase mixture;a probe array configured to measure a cross-sectional area of the conduit, wherein the probe array comprises a plurality of coaxial probes connected in parallel; and ground all but one of the coaxial probes in the probe array,', 'transmit a signal to the probe array, and', 'receive a reflected signal from the probe array,, 'a processor configured to'}wherein the processor is configured to transmit the signal and receive the reflected signal using a single channel between the probe array and the processor,wherein the processor is configured to calculate the water cut and the salinity of the multiphase mixture based on a single complex permittivity of the multiphase mixture calculated from the received reflected signal of each non-grounded coaxial probe, andwherein the single complex permittivity is an average of the complex permittivity of the multiphase mixture measured by each non-grounded coaxial probe.2. The flow meter of claim 1 ...

Подробнее
Номер записи: 82
13-01-2022 дата публикации

SENSOR AND METHOD FOR MANUFACTURING THE SAME

Номер: US20220011254A1
Автор: HAYASHI Yumi
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, a sensor includes a sensor part including a first film. The first film includes a first element including at least one selected from the group consisting of Pd, Pt, and Au. The first film includes a first region, and a second region including a plurality of protrusions. A protruding direction of the protrusions is along a first direction from the first region toward the second region. 1. A sensor , comprising:a sensor part including a first film including a first element,the first element including at least one selected from the group consisting of Pd, Pt, and Au, a first region, and', 'a second region including a plurality of protrusions,, 'the first film including'}a protruding direction of the protrusions being along a first direction from the first region toward the second region.2. A sensor , comprising:a sensor part including a first film including a first element,the first element including at least one selected from the group consisting of Pd, Pt, and Au,the first film including a first surface, a second surface, a first region, and a second region,the first region being located between the first surface and the second surface,the second region being located between the first region and the second surface,the second surface being rougher than the first surface.3. The sensor according to claim 1 , whereinthe first region is amorphous, and the second region includes a crystal grain, ora crystallinity of the second region is greater than a crystallinity of the first region.4. The sensor according to claim 3 , whereinan average grain size of the crystal grains of the second region is not less than 0.1 nm and not more than 100 nm.5. The sensor according to claim 1 , whereinthe first region includes a second element including at least one selected from the group consisting of Si, P, and B, andthe second region does not include the second element, or a concentration of the second element in the second region is less than a concentration ...

Подробнее
Номер записи: 83
20-01-2022 дата публикации

A Sensor, System and Method For Detecting Or Sensing Moisture Or Wetness Of An Article

Номер: US20220015955A1
Автор: van de Sande Benoit, van de Sande Bram
Принадлежит:

The present invention relates to a sensor, system and method for detecting or sensing moisture or wetness of an article. Instead of conventional methods for detecting or sensing moisture or wetness of an article such as visual checking which requires constant inspection of the article, and for many articles is not possible, or the use of chemically activated indicators which are generally single use, the present invention uses electrical charge to detect or sense the moisture or wetness of an article. In that way, the present invention aims to provide a reusable way for detecting or sensing moisture or wetness in different articles. The present invention may be used in applications where moisture or wetness changes often. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. (canceled)19. (canceled)20. (canceled)21. A system for detecting or sensing moisture or wetness of an article to which the system is attached , the system comprising:a controller or processor,a sensor, the sensor being configured to store an electrical charge, and wherein the electrical charge storing capacity of the sensor is based on the moisture or wetness of the article, 'charge the sensor for a first period of time, and after the first period of time actively at least partially discharge the sensor for a second period of time, and subsequently measure an output of the sensor, optionally at a predetermined time,', 'wherein the controller is configured towherein the controller is configured to determine an output of the sensor indicative of the moisture or wetness of the article based on the measured output of the sensor.22. (canceled)23. The system of claim 21 , wherein the sensor comprise a first and a second plate separated by a dielectric layer claim 21 , and wherein the controller is configured to after the ...

Подробнее
Номер записи: 84
11-01-2018 дата публикации

SYSTEMS, METHODS AND APPARATUS FOR RODENT BEHAVIOURAL MONITORING

Номер: US20180007862A1
Автор: "DSOUZA ABIGAIL", BONIN ROBERT P., DUBINS DAVID, LECKER IRENE, MERCIK ALEKSANDER, MOGIL JEFFREY
Принадлежит:

Systems, methods and devices are provided for the non-invasive behavioural monitoring of rodents within a rodent cage via the detection of interactions with a cage lid. A cage lid interaction sensor, positioned in close proximity to the cage lid, is employed to sense interactions with the cage lid. The resulting signals may be processed to determine a health status of the rodent. In some example embodiments, a lid sensing module is provided in that is configured for attachment to an existing rodent cage, permitting the insertion of the rodent cage into a cage rack after installation of the sensing module. In other example embodiments, a replacement cage lid is provided having an integrated lid interaction sensor and associated detection circuitry. Various example lid sensing modalities and associated sensor configurations are disclosed. 1. An apparatus for behavioural monitoring a rodent , the apparatus comprising: a lower cage portion configured to house a rodent therein; and', 'a cage lid configured to be received by said lower cage portion;, 'a rodent cage comprisinga lid interaction sensor configured to produce signals associated with interactions of the rodent with said cage lid; anddetection circuitry operably coupled to said lid interaction sensor for detecting the signals produced by said lid interaction sensor, wherein said detection circuitry is supported by said rodent cage;wherein said detection circuitry is connectable to a power source for providing power thereto.2. The apparatus according to wherein at least a portion of said cage lid is an electrically conductive portion claim 1 , and wherein said lid interaction sensor is a capacitive sensor in electrical communication with said electrically conductive portion of said cage lid.3. The apparatus according to wherein said lid interaction sensor is selected from the group consisting of an optical sensor claim 1 , a displacement sensor configured to produce a signal based on displacement of said cage lid ...

Подробнее
Номер записи: 85
10-01-2019 дата публикации

UROFLOWMETRY SYSTEMS, DEVICES AND METHODS

Номер: US20190008439A1
Автор: Sageder Josef, Vermeulen Jiri
Принадлежит: MINZE NV

The present invention includes devices, systems and methods in the field of uroflowmetry, more specifically in the field of home uroflowmetry. In one aspect, the present invention discloses a core unit comprising an accelerometer; a urine detector; a weight sensor; a communication module; a microprocessor; and, an energy source. Further provided is a uroflowmetry device comprising said core unit. 1. A core unit of a uroflowmetry device , the core unit comprising at leastan accelerometer:a urine detector;a weight sensor;a communication module;a microprocessor; and,an energy source.2. The core unit according to further comprising a proximity sensor.3. The core unit according to further comprising an inductive power module.4. The core unit according to further comprising a memory module.5. The core unit according to wherein the accelerometer is configured for:detecting an acceleration in a lateral direction;detecting shocks; and/ordetecting the orientation of the core unit with respect to the horizontal plane.6. The core unit according to further comprising a waterproof housing claim 1 , in which at least the accelerometer claim 1 , the urine detector claim 1 , the weight sensor claim 1 , the communication module claim 1 , the energy source claim 1 , and optionally the proximity sensor claim 1 , are embedded.7. The core unit according to wherein the urine detector comprises a capacitive sensor.8. The core unit according to wherein the weight sensor is configured for detecting the weight of urine and/or the change of the weight of urine in time.9. A receptacle configured for operationally coupling with the core unit according to comprising urine analysis sensors for providing a chemical analysis of urine.10. A uroflowmetry device comprisinga core unit comprising one or more accelerometers, a capacitive sensor, and a weight sensor;a receptacle for collecting urine, operationally coupled to the core unit; and,a holder for holding the core unit and the receptacle.14. The ...

Подробнее
Номер записи: 86
08-01-2015 дата публикации

Array of Sensors with Surface Modifications

Номер: US20150011428A1
Автор: CABLE Michael D., Sussner Heinrich, Yamamoto Steven
Принадлежит: Matrix Sensors, Inc.

Surface modifications to sensors in an array give the sensors different functionalities for adsorbing or binding molecules. A first sensor in the array includes a first resonating member having a first surface comprising a polymer receptor material coated over a first underlying material. A second sensor includes a second resonating member having a second surface comprising the polymer receptor material coated over a second underlying material that is different than the first underlying material. The first underlying material, the second underlying material, and the polymer receptor material are selected such that the first resonating member, having a combination of the polymer receptor material and the first underlying material, has a different ability to adsorb or bind a mass of one or more analytes than does the second resonating member having a combination of the polymer receptor material with the second underlying material. Methods for fabricating sensors with surface modifications are also provided. 1. A device comprising:a) at least first and second resonator sensors, wherein the first sensor includes a first resonating member having a first surface comprising a polymer receptor material coated over a first underlying material, the second sensor includes a second resonating member having a second surface comprising the polymer receptor material coated over a second underlying material that is different than the first underlying material, and the first underlying material, the second underlying material and the polymer receptor material are selected such that the first resonating member, having a combination of the polymer receptor material and the first underlying material, has a different ability to adsorb or bind a mass of one or more analytes than does the second resonating member having a combination of the polymer receptor material with the second underlying material; andb) detection means for detecting responses of the sensors when the sensors are ...

Подробнее
Номер записи: 87
27-01-2022 дата публикации

FLEXIBLE TWO-DIMENSIONAL SHEET ARRAY OF ELECTRONIC SENSOR DEVICES

Номер: US20220026296A1
Автор: CAI Zhihua, Krotosky Jeffrey
Принадлежит:

A flexible electronic sensor array apparatus comprising: a continuous flexible sheet having a length defining a first axis, a width defining a second axis and a thickness comprising a third axis; wherein the flexible sheet comprises multiple flexible sheet layers formed of one or more flexible materials stacked along the third axis; a plurality of electronic sensors disposed within the flexible sheet, each respective sensor comprising at least two conductive pattern layers, the two conductive pattern layers of the respective sensor spaced apart from one another along the third axis by one of the flexible sheet layers interposed between the conductive pattern layers; and wherein each respective sensor of the plurality of sensors is disposed at a different respective position along the first axis or the second axis of the flexible sheet from the remaining sensors, thereby forming an array of sensors spaced along the first and second axes. 1. A flexible electronic sensor array apparatus comprising:a continuous flexible sheet having a length defining a first axis, a width defining a second axis and a thickness comprising a third axis;wherein the flexible sheet comprises multiple flexible sheet layers formed of one or more flexible materials stacked along the third axis;a plurality of electronic sensors disposed within the flexible sheet, each respective sensor comprising at least two conductive pattern layers formed of an electrically conductive material, the two conductive pattern layers of the respective sensor being spaced apart from one another along the third axis by at least one of the flexible sheet layers interposed between the conductive pattern layers; andwherein each respective sensor of the plurality of sensors is disposed at a different respective position along at least one of the first axis and the second axis of the flexible sheet from the remaining sensors, thereby forming an array of sensors spaced along the first and second axes within the flexible ...

Подробнее
Номер записи: 88
27-01-2022 дата публикации

SYSTEM FOR DETECTION OF DRIFT OF THE WATER VOLUME FRACTION IN A FLOW

Номер: US20220026376A1
Автор: UNDHEIM Erik
Принадлежит:

The present invention relates to a system for measuring the water volume fraction (WVF) of a mixed fluid flow in a pipe, especially wet and dry gas hydrocarbon fluid flows, the system comprising a measuring unit for measuring the dielectric permittivity of said fluid mixture, a computing unit for calculating and storing both the WVF, based on the absolute level of the dielectric permittivity, and the statistical variation of the dielectric permittivity of said fluid mixture over a predetermined period of time. The system also including an analysis unit for detecting drift in the measured WVF by comparing and analyzing the development of the WVF versus the statistical variation of the permittivity over said time period, and based on detected drift to determine whether an apparent change in the WVF is reflected in a corresponding change in the statistical variation of the permittivity, and, based on said comparison, determining if the drift is caused by a real change in the WVF. 1. A system for measuring the water volume fraction (WVF) of a mixed fluid flow in a pipe , the system comprising:a measuring unit for measuring the dielectric permittivity of the fluid mixture;a computing unit for calculating and storing both the WVF based on the dielectric permittivity and the statistical variation of the dielectric permittivity of the fluid mixture over a predetermined period of time; andan analysis unit for detecting drift in the calculated WVF by comparing and analyzing the development of the calculated WVF versus the statistical variation of the permittivity over the time period, and based on detected drift to determine whether the development in the calculated WVF is reflected in a corresponding change in the statistical variation of the permittivity, and, based on the comparison and analysis, determining if the drift is caused by a real change in the WVF.2. The system according to claim 1 , wherein the WVF is derived from the measured permittivity of the mixture claim ...

Подробнее
Номер записи: 89
12-01-2017 дата публикации

Pliable capacitive structure apparatus and methods

Номер: US20170010130A1
Автор: Daniel Xu, Ho Cheong Lo, Iain Alexander Anderson, Thomas Gregory Mckay
Принадлежит: AUCKLAND UNISERVICES LIMITED, Daniel Xu, Ho Cheong Lo, Iain Alexander Anderson, Thomas Gregory Mckay

The present invention relates to pliable capacitive structures such as dielectric elastomers and similar smart materials which can be used for sensing externally applied strains which can be inferred by the determining the capacitance of the structure/material. There is provided an apparatus comprising a pliable capacitive structure for use in detecting shape or strain changes, the pliable capacitive structure having a dielectric material positioned between two electrodes; means for applying a steady-state voltage across the two electrodes; and means for determining changes in capacitance of the pliable capacitive structure using said steady state voltage.

Подробнее
Номер записи: 90
12-01-2017 дата публикации

Gas Sensor With Frequency Measurement of Impedance

Номер: US20170010231A1
Автор: Wouters Daan
Принадлежит:

The present disclosure relates to methods and devices for gas sensing. A gas sensor includes a sensing element comprising at least an ionic liquid. The gas sensor also includes a set of electrodes for polarizing the sensing element and an electric power source for powering the set of electrodes, thus generating an impedimetric response signal from the sensing element. The gas sensor additionally includes readout circuitry for separately analyzing resistive and capacitive components in the impedimetric response signal. A method includes exposing a gas sensor to a gas. The gas sensor includes a sensing element including at least an ionic liquid. The method also includes polarizing the sensing element with an electrical signal at a first frequency, measuring an impedimetric response signal of the sensing element, separating the signal into resistive and capacitive components, and determining the composition of the gas based at least on the resistive and capacitive components. 1. A gas sensor comprisingat least one sensing element comprising at least an ionic liquid;at least one set of electrodes for polarizing the at least one sensing element;an electric power source for powering the at least one set of electrodes, thus generating an impedimetric response signal from the sensing element; andreadout circuitry for separately analyzing resistive and capacitive components in the impedimetric response signal.2. The gas sensor according to claim 1 , wherein the at least one sensing element comprises an ionic liquid gel formed of a gellant and the ionic liquid.3. The gas sensor according to claim 2 , wherein the gellant is selected from the group consisting of: organic gels claim 2 , inorganic gels claim 2 , or a mixture thereof.4. The gas sensor according to claim 1 , wherein the at least one set of electrodes form an interdigitated array of electrodes.5. The gas sensor according to claim 1 , wherein the at least one sensing element further comprises a plurality of ionic ...

Подробнее
Номер записи: 91
12-01-2017 дата публикации

BREACH SENSOR

Номер: US20170010232A1
Автор: Bancken Pascal, DAAMEN Roel, Nenadovic Nebojsa, NGUYEN Viet Hoang
Принадлежит:

One example discloses a breach sensor, comprising: a substrate including an integrated circuit; a passivation layer coupled to the substrate; a breach sensing element coupled to the circuit; wherein the breach sensing element is on a first side of the passivation layer and the substrate is on a second side of the passivation layer; a barrier configured to separate the breach sensing element from an ambient environment; wherein the breach sensing element is responsive to barrier damage. 1. A breach sensor , comprising:a substrate including an integrated circuit;a passivation layer coupled to the substrate;a breach sensing element coupled to the circuit;wherein the breach sensing element is on a first side of the passivation layer and the substrate is on a second side of the passivation layer; anda barrier configured to separate the breach sensing element from an ambient environment;wherein the breach sensing element is responsive to barrier damage.2. The breach sensor of :wherein the breach sensing element includes a humidity sensing element configured to detect a humidity level change in response to barrier damage.3. The breach sensor of :wherein the humidity sensing element is pre-calibrated with a first humidity level;further comprising a second humidity sensing element pre-calibrated with a second humidity level, different from the first humidity level; andwherein the first and second humidity sensing elements are separated by a second barrier;4. The breach sensor of :wherein the humidity sensor includes at least one of: a capacitive sensing structure or a polyimide.5. The breach sensor of :wherein the barrier is directly bonded to the breach sensing element.6. The breach sensor of :wherein the barrier includes at least one of: a encapsulation material, a cover, a wrapper, a glue, or a seal.7. The breach sensor of :wherein the barrier damage includes at least one of: a focused ion beam hole, a de-capping, a shear, a tear, an etch, or a physical attack.8. The ...

Подробнее
Номер записи: 92
09-01-2020 дата публикации

Optical rain sensor and method for determining a minimal rain drop size

Номер: US20200010053A1
Автор: Emilien Durupt, Tom Fougere
Принадлежит: MEAS France SAS

The present invention relates to a rain sensor detecting the size of rain drops based on optical effects. The rain sensor is mounted on a first surface of a pane in order to detect the amount of moisture on an opposing second surface of the pane. The rain sensor comprises at least one emitter for emitting electromagnetic radiation, directed from the first surface to the second surface to form at least two rain-sensitive areas on the second surface At least one receiver is included for sensing radiation emitted by the emitter and that has been internally reflected at the rain-sensitive areas. The rain sensor generates an output signal indicative of an amount of moisture on the rain-sensitive area. A control unit calculates a minimal droplet size based on the output signal.

Подробнее
Номер записи: 93
08-01-2015 дата публикации

Method of measuring micro- and nano-scale properties

Номер: US20150012230A1
Автор: Clark Jason Vaughn
Принадлежит:

This invention is a novel methodology for precision metrology, sensing, and actuation at the micro- and nano-scale. It is well-suited for micro- and nano-scale because it leverages off the electromechanical benefits of the scale. The invention makes use of electrical measurands of micro- or nano-scale devices to measure and characterize themselves, other devices, and whatever the devices subsequently interact with. By electronically measuring the change in capacitance, change in voltage, and/or resonance frequency of one or more test structures, a multitude of geometric, dynamic, and material properties may be extracted with a much higher accuracy and precision than conventional methods. 1. A method of property extraction including a sequence of levels distinguished by a type of electrical measurement , wherein the method determines a multitude of geometric , dynamic , and material properties as functions of electrical measurands and comprises the steps of:a. measuring a first level in the sequence of property extractions corresponding to properties that are functions of changes in capacitance;b. measuring a second level in the sequence of property extractions corresponding to properties that are functions of changes in voltage and changes in capacitance due to a prescribed displacement and the electrical measurands from the first level;c. measuring a third level in the sequence of property extractions corresponding to properties that are functions of displacement resonant frequencies, velocity resonant frequencies, and the electrical measurands from the first level and the second level; andd. measuring a fourth level in the sequence of property extractions corresponding to properties that are functions of stress-induced changes in capacitance and the electrical measurands of the first, second and third levels.2. The method of property extraction according to claim 1 , wherein the first level in the sequence of property extraction is measured by a first level group ...

Подробнее
Номер записи: 94
14-01-2016 дата публикации

ARRANGEMENT FOR DETERMINING THE PHASE DISTRIBUTION IN MULTIPHASE MEDIA HAVING AT LEAST ONE HIGHLY C0NDUCTIVE PHASE

Номер: US20160011136A1
Автор: LOSCHAU Martin, SCHLEICHER Eckhard, VAN CAMPEN Laurens
Принадлежит: Helmholtz-Zentrum Dresden-Rossendorf E.V.

A grid sensor for measuring the phase distribution of a multiphase substance mixture with gaseous and liquid components in the presence of a highly conductive phase (such as salt water or liquid metal) employs 3 superposed electrode planes and an electronic measuring device. Application areas include determination of the liquid distribution and the fill level in containers, as well as the investigation of gas-liquid multiphase flows, in particular in pipelines, e.g. in petroleum production and processing. 1. Arrangement for determination of the phase distribution in multi-phase fluids with at least one highly conductive phase fraction and further presence of non-conductive and/or other conductive components , comprising three superposed electrode planes of wire-shaped electrodes , which are clamped in a sensor frame , wherein:a. the electrodes in each plane are disposed in parallel with a small spacing to each other,b. two of the electrode planes are galvanically separated from a study medium by an insulating layer and one of the two electrode planes functions as a transmitter plane and another one as a receiver plane, and the two electrode planes are arranged in parallel and rotated at an angle to one other,c. a third one of the electrode planes is not isolated and is at ground potential, and the at least one highly conductive phase fraction in contact with the third one of the electrode planes is thus also at ground potential, andd. the arrangement is connected to an electronic measuring device configured to measure electrical capacitance or permittivity of the medium in individual intersections formed by the electrodes the transmitter plane and the electrodes of the receiver plane, and the electronic measuring device is configured to successively charge a corresponding electrode of the transmitter plane with an AC voltage, while all other electrodes of the transmitter plane are switched to ground, and the electronic measuring device is configured to ...

Подробнее
Номер записи: 95
14-01-2016 дата публикации

Characterization Apparatus

Номер: US20160011137A1
Автор: Hoefnagels Kim Louis Jozephus, Leynen Bjorn, Van de Straete Herman Jan Godelieve, Van Dooren Herwig Joannes
Принадлежит:

A characterization apparatus for characterizing a liquid containing insoluble particles includes a housing including an inlet portion defining an inlet passage between an inlet end and a first channel end, a channel portion defining a measurement channel between the first channel end and a second channel end, and an outlet portion defining an outlet passage between the second channel end and an outlet end. The channel portion includes a first electrode and a second electrode at a first and second side of the channel. The apparatus also includes a measurement device configured for measuring an electric measure representative for properties of the liquid flowing between the first electrode and the second electrode. The inlet passage gradually changes shape from the inlet end to the first channel end. The outlet passage gradually changes shape from the second channel end to the outlet end. 2. The characterization apparatus of claim 1 , wherein said first electrode contacts said channel claim 1 , in a section perpendicular to the flow direction claim 1 , over a first distance claim 1 , and said second electrode contacts said channel claim 1 , in a section perpendicular to the flow direction claim 1 , over a second distance; with said first and second distance being at least five times larger than said thickness.3. The characterization apparatus of claim 1 , further comprising a voltage source configured for applying a voltage between the first and the second electrode claim 1 , wherein the measurement device is configured for measuring values representative for the electric current flowing through the liquid between the first and the second electrode.4. The characterization apparatus of claim 1 , wherein said inlet passage gradually changes shape from the shape of a tube passage at said inlet end to the shape of the measurement channel at said first channel end.5. The characterization apparatus of claim 1 , wherein said outlet passage gradually changes from the shape of ...

Подробнее
Номер записи: 96
11-01-2018 дата публикации

Sensor for wear measurement, method of making, and method of operating same

Номер: US20180011038A1
Автор: David L. Carnahan, Grant A. DREW, Iosif Izrailit, Richard R. Soelch
Принадлежит: NanoLab Inc, New Hampshire Ball Bearings Inc

A wear sensor comprising: an insulating substrate having a top surface and a bottom surface; a conductive electrode formed on said top surface of said insulating substrate; an insulating wear lining material having a first side secured to said top surface of said insulating substrate and conductive electrode, an opposite second side that will be worn down by relative motion between the wear sensor and a moving component; one or more contact points where the electrical properties between the electrode and the moving component can be measured; and one or more perforations through the thickness of the substrate and electrode, through which an adhesive may flow, thereby increasing the peel strength between the wear sensor and race or between the wear sensor and the wear liner.

Подробнее
Номер записи: 97
10-01-2019 дата публикации

PAPER BASED ELECTRONICS PLATFORM

Номер: US20190011288A1
Автор: HUSSAIN Muhammad Mustafa, NASSAR Joanna Mohammad, SEVILLA Galo Andrea Torres
Принадлежит:

A flexible and non-functionalized low cost paper-based electronic system platform fabricated from common paper, such as paper based sensors, and methods of producing paper based sensors, and methods of sensing using the paper based sensors are provided. A method of producing a paper based sensor can include the steps of: a) providing a conventional paper product to serve as a substrate for the sensor or as an active material for the sensor or both, the paper product not further treated or functionalized; and b) applying a sensing element to the paper substrate, the sensing element selected from the group consisting of a conductive material, the conductive material providing contacts and interconnects, sensitive material film that exhibits sensitivity to pH levels, a compressible and/or porous material disposed between a pair of opposed conductive elements, or a combination of two of more said sensing elements. The method of sensing can further include measuring, using the sensing element, a change in resistance, a change in voltage, a change in current, a change in capacitance, or a combination of any two or more thereof. 1. A method of producing a paper based sensor , comprising the steps of:a) providing a conventional paper product to serve as a substrate for the sensor or as an active material for the sensor or both, the paper product not further treated or functionalized; andb) applying a sensing element to the paper substrate, the sensing element selected from the group consisting of a conductive material, the conductive material providing contacts and interconnects, sensitive material film that exhibits sensitivity to pH levels, a compressible and/or porous material disposed between a pair of opposed conductive elements, or a combination of two of more said sensing elements.2. The method of claim 1 , wherein the conventional paper product is selected from the group consisting of cellulose fiber based porous structures.3. The method of claim 1 , wherein the ...

Подробнее
Номер записи: 98
14-01-2021 дата публикации

Humidity Sensor and Related Methods

Номер: US20210010965A1
Автор: Hoheisel Raymond
Принадлежит:

A humidity meter includes a humidity sensor, a heating device oriented towards the humidity sensor, a signal generator capable of modulating a power output of the heating device, and a lock-in amplifier capable of demodulating a response signal of the humidity sensor as induced by the modulated heating device. A method of measuring humidity includes the steps of providing a humidity sensor positioned along a channel, a heating device positioned opposite the humidity sensor along the channel, and a controller including a signal generator and a lock-in amplifier; providing an airflow along the channel; modulating a power supply to the heating device using the signal generator; and demodulating a response signal of the humidity sensor induced by the modulated heating device. 1. A humidity meter comprising:a humidity sensor;a light source oriented towards the humidity sensor;a signal generator configured to modulate a power output of the light source; andan amplifier configured to demodulate a response signal of the humidity sensor as induced by the modulated light source.2. The humidity meter of claim 1 , further comprising an additional sensor configured to measure at least one of a temperature claim 1 , a pressure claim 1 , and a velocity of an airflow.3. The humidity meter of claim 1 , further comprising an additional humidity sensor.4. The humidity meter of claim 1 , further comprising a channel claim 1 , the humidity sensor and light source positioned opposite one another along the channel.5. The humidity meter of claim 1 , wherein the light source includes a lens.6. The humidity sensor of claim 1 , wherein the amplifier is a lock-in amplifier.7. The humidity meter of claim 1 , further comprising a controller configured to control operation of the signal generator and amplifier.8. The humidity meter of claim 7 , wherein the controller includes a data storage device.9. The humidity meter of claim 1 , wherein the signal generator is configured to alternately switch ...

Подробнее
Номер записи: 99
14-01-2021 дата публикации

EXTREME-CONDITION SENSORS FOR USE WITH ELECTRICAL CAPACITANCE VOLUME TOMOGRAPHY AND CAPACITANCE SENSING APPLICATIONS

Номер: US20210010966A1
Автор: Alghothani Yousef, HUDAK Jesse, Legg Geoffrey, Marashdeh Qussai, Straiton Benjamin, Tong Andrew
Принадлежит:

An electrical capacitance volume tomography sensor for use in high temperature, high pressure applications for measuring or imaging a flow within the sensor, the sensor comprising an outer pressure vessel, a plurality of electrodes placed within the outer pressure vessel, a plurality of threaded studs, wherein one of the threaded studs is attached to one of the plurality of electrodes, a coating or layer is placed on the plurality of electrodes for electrically isolating the plurality of electrodes, a plurality of holes in the outer pressure vessel for allowing terminal connections to the plurality of electrodes within the outer pressure vessel, wherein each of the plurality of holes accepts one of the plurality of threaded studs, and a plurality of gaskets, where one gasket is placed at each of the plurality of holes to seal the pressure at each of the holes in the outer pressure vessel by placing one gasket concentric around one threaded stud and conforming each gasket between a back of an electrode and the inside wall of the pressure vessel by tightening each of the plurality of nuts on each of the threaded studs. 1. An electrical capacitance volume tomography sensor for use in high temperature , high pressure applications for measuring or imaging a flow within the sensor , the sensor comprising:an outer pressure vessel, having an inner wall and outer wall;a plurality of electrodes placed within the outer pressure vessel;a plurality of threaded studs, wherein one of the threaded studs is attached to one of the plurality of electrodes;a plurality of nuts for engagement to the plurality of threaded studs;a coating or layer is placed on the plurality of electrodes for electrically isolating the plurality of electrodes;a plurality of holes in the outer pressure vessel for allowing terminal connections to the plurality of electrodes within the outer pressure vessel, wherein each of the plurality of holes accepts one of the plurality of threaded studs.2. An apparatus ...

Подробнее
Номер записи: 100