СПОСОБ ИЗМЕРЕНИЯ РАСХОДА ЖИДКОСТИ

Из насадка, размещенного в основании, по длинным сторонам которого установлены вертикальные стенки, выпускают вертикально вверх струю жидкости. Длина прямоугольного выходного сечения насадка равна расстоянию между вертикальными стенками, а отношение сторон сечения составляет 0,02 - 0,04. После затопления начального сечения струи поступающей из нее жидкостью, растекающейся вдоль основания к его концам, с помощью фотоэлемента или видеоаппаратуры измеряют период возникающих автоколебаний свободной плоской струи. В зависимости от величины периода по приводимым расчетным зависимостям определяют расход. Изобретение обеспечивает расширение диапазона измерений в сторону малых расходов. 1 ил.

СТРУЙНЫЙ АВТОГЕНЕРАТОРНЫЙ РАСХОДОМЕР-СЧЕТЧИК

Расходомер-счетчик содержит струйный автогенератор (1) с каналами обратной связи, в которых установлены датчики (2, 3) пульсации давления, дифференциальный усилитель (4), суммирующий усилитель (5), аналого-цифровые преобразователи (6, 7), устройства вычисления амплитудно-частотных спектров (8, 9), устройство вычитания спектров (10), устройство поиска максимума в спектре (11). Частотный выход устройства (11) подключен ко входу ключа (12), амплитудный выход устройства (11) подключен к первому входу компаратора (13), ко второму входу которого подключен источник опорного сигнала (14). Выход компаратора подключен к управляющему входу ключа. Блоки (6-14) реализуются аппаратно-программными средствами микроконтроллера. Изобретение имеет высокую помехозащищенность за счет минимизации влияния сигналов помехи, вызванных пульсациями давления в трубопроводе, а также повышает надежность измерения благодаря обработке сигналов датчиков программными средствами. 2 ил.

СТРУЙНЫЙ ИЗМЕРИТЕЛЬ СКОРОСТИ ТЕЧЕНИЯ ЖИДКОСТИ ИЛИГАЗА

Измеритель содержит автогенератор струйных импульсов, состоящий из струйных элементов с соплами и приемными каналами. В каждом струйном элементе расстояние между выходом из сопла и входами в приемные каналы меньше, чем длина ядра турбулентной струи. Измеритель может быть выполнен с возможностью работы только за счет кинетической энергии контролируемого потока, используемой для выработки энергии питания вторичной электроаппаратуры. Изобретение обеспечивает повышение точности и расширение диапазона измерения скорости и объемного расхода. 1 з.п. ф-лы, 1 ил.

РАСХОДОМЕР

Расходомер содержит корпус в виде участка трубопровода, сужающее устройство в виде трубки с соплом, струйный автогенератор, в каналах обратной связи которого установлены пьезоэлектрические преобразователи, уплотняющую крышку и прижимную гайку. Струйный автогенератор выполнен в виде плоского диска со сквозными профилированными прорезями и установлен в основании, герметично соединенном с трубопроводом. Входной и выходной каналы струйного автогенератора выполнены в виде отверстий в нижней части основания и в верхней части трубопровода, совмещенных соответственно с входным соплом и рабочей камерой автогенератора. Изобретение обеспечивает повышение точности измерения, имеет простую технологию изготовления. 3 ил.

СПОСОБ ИЗМЕРЕНИЯ РАСХОДА ВОДЫ

Изобретение относится к области эксплуатации мелиоративных систем и может быть использовано на оросительных системах для учета оросительной воды. Способ измерения расхода воды в расходомере с эластичным рабочим органом включает определение расхода воды косвенным методом путем измерения двух параметров, один из которых напор или гидравлический перепад на регулирующем сооружении, определяют давление в эластичном рабочем органе и в качестве второго параметра используют относительное давление в эластичном рабочем органе. Причем относительное давление в эластичном рабочем органе определяется из отношения давления в эластичном рабочем органе к напору или гидравлическому перепаду на регулирующем сооружении. Технический результат - расширение функциональных возможностей регулирующих гидротехнических сооружений с эластичным регулирующим органом. 2 ил., 1 табл.

ФЛЮИДАЛЬНЫЙ ИЗЛУЧАТЕЛЬ И РАСХОДОМЕР, СОДЕРЖАЩИЙ ТАКОЙ ИЗЛУЧАТЕЛЬ

Изобретение относится к расходомерам с эффектом Коанда. Излучатель содержит флюидальный вход, имеющий входное отверстие, приспособленное для формирования двумерной струи текучей среды, колеблющейся в поперечном направлении относительно плоскости симметрии, камеру излучателя, сообщенную с входным отверстием, и препятствие в камере излучателя, имеющее фронтальную часть, в которой образована основная полость, обращенная к входному отверстию. Между фронтальной частью препятствия и стенкой камеры излучателя со стороны входного отверстия по разные стороны от основной части сформированы два пространства, в которых образуются вихри. Излучатель снабжен средством изменения радиальной протяженности вихрей в функции параметров струи текучей среды. Изобретение направлено на повышение эксплуатационных характеристик расходомеров. 2 с. и 17 з.п.ф-лы, 13 ил.

УСТРОЙСТВО ДЛЯ ПОВЕРКИ КВАРТИРНЫХ СЧЕТЧИКОВ

Устройство для поверки квартирных счетчиков, встраиваемое в магистраль потребляемого продукта, в виде природного газа, воды, тепловой или электрической энергии, расположенное на переносном стенде или в кейсе и содержащее два или более поверяющих счетчика потребляемого продукта определенного вида, отличающееся тем, что поверяющие счетчики в нем соединены один за другим последовательно.

Преобразователь пневматического частотного сигнала в электрический

Полезная модель относится к области средств автоматизации для пневмоэлектрического преобразования сигналов систем управления. Техническим результатом является устранение ложных срабатываний от переменных механических воздействий и нагрузок и упрощение конструкции. Технический результат достигается тем, что предложенный преобразователь пневматического частотного сигнала в электрический характеризуется по модели тем, что содержит корпус и внутреннюю перегородку из диэлектрика, с двух сторон от которой параллельно размещены два пьезоэлемента с идентичными резонансными характеристиками, образуя четыре камеры с разных сторон от них, одна из внешних камер снабжена штуцером входного пневмосигнала, другая внешняя камера и внутренние камеры снабжены атмосферными отверстиями, при этом односторонние обкладки пьезоэлементов соединены проводником между собой, а их другие односторонние обкладки соединены соответственно с клеммами выходного электросигнала. 1 ил.

СТРУЙНЫЙ ГЕНЕРАТОР

Генератор предназначен для измерения потока газа. Генератор симметричен относительно продольной плоскости симметрии, содержит вход для впуска текучей среды, предназначенной для образования двухмерной струи текучей среды, которая совершает колебания в поперечном направлении относительно плоскости симметрии, препятствие, в котором расположена полость, которая обращена к указанному входу для впуска текучей среды и омывается колеблющейся струей. Препятствие имеет переднюю стенку с передними поверхностями, по существу, плоскими и ограничивающими полость, причем плоскость каждой поверхности приблизительно перпендикулярна плоскости симметрии. Полость определена поверхностью, которая приблизительно параллельна плоскости симметрии в точках, где эта поверхность соединяется с каждой из передних поверхностей, при этом препятствие имеет две боковые стенки, поверхности которых, по существу, параллельны плоскости симметрии в точках, где каждая из них соединяется с соответствующей передней поверхностью ...

СПОСОБ ИЗМЕРЕНИЯ РАСХОДА ДВУХФАЗНОЙ ТРЕХКОМПОНЕНТНОЙ СРЕДЫ

Способ осуществляется следующим образом. Проводят гидродинамические исследования нефтяной скважины на трех-пяти режимах стационарной фильтрации. На каждом установившемся режиме фильтрации измеряют забойное давление и дебит нефтяной скважины. При этом расход каждой компоненты измеряют с помощью измерительной установки, а датчики многофазного расходомера фиксируют скорость потока, обводненность, газонасыщенность, давление, температуру. Калибровку многофазного расходомера проводят на основе значений дебитов нефти, воды и нефтяного газа, определенных с помощью измерительной установки. Синтез математической модели осуществляют на основе моделей самоорганизации, в качестве проверочных точек используют значения дебитов нефти, воды и нефтяного газа, определенных с помощью измерительной установки и соответствующих им значений датчиков многофазного расходомера. В процессе нормальной эксплуатации скважины дебит нефти, воды и нефтяного газа определяют на основе моделей самоорганизации, при этом входные ...

СПОСОБ ИЗМЕРЕНИЯ РАСХОДА ГАЗА

Способ измерения расхода газа, при котором выделяют элементарный измерительный объем газа в потоке, проводят его через измерительную схему струйного генератора, измеряют частоту колебаний давления элементарного объема в приемных каналах одного любого струйного элемента и по частоте колебаний давления судят об объемном расходе газа. Выбирают для измерения аналоговые струйные элементы. Устанавливают разделители между приемными каналами напротив струи питания. Направляют элементарный объем газа на разделитель. Разделяют его на неравные части с вихревым движением его малой части вблизи разделителя при сближении и взаимодействии с разделителем. Доворачивают большую часть объема под влиянием вихревого движения. Увеличивают угол отклонения траектории движения измерительного объема в требуемый приемный канал и крутизну сигнала давления. Передают его в канал управления последующего струйного элемента и далее по замкнутой цепи передачи элементарного объема. Технический результат - расширение диапазона ...

УСТРОЙСТВО ДЛЯ ИССЛЕДОВАНИЯ ГИДРОМЕХАНИЧЕСКИХ СВОЙСТВ ПРОТЕЗОВ ТРУБЧАТЫХ КРОВЕНОСНЫХ СОСУДОВ

Изобретение относится к медицинской технике, а именно к устройству для исследования гидромеханических свойств протезов трубчатых кровеносных сосудов. Устройство состоит из последовательно соединенных в замкнутый контур пневмогидроаккумулятора с подключенными к нему воздушным насосом, датчиком давления воздуха и запорной арматуры, обратным клапаном, насосом вспомогательного кровообращения, управляемым блоком пневмопривода, выполненным с возможностью питания компрессором. Далее в контур подключены обратный клапан, регулирующая арматура, датчик расхода жидкости, блок терморегуляции, датчик температуры, гнездо первого переходника, соединенное через динамометр с главным суппортом, размещенным на направляющих станины и снабженным фиксатором. Управляемый блок пневмопривода выполнен с возможностью перемещения по направляющим станины вдоль оси протеза трубчатого кровеносного сосуда, для задания натяжения исследуемого протеза трубчатого кровеносного сосуда, контролируемого показаниями динамометра ...

ИЗМЕРИТЕЛЬ РАСХОДА ГАЗА С ПРЕОБРАЗОВАНИЕМ КОЛЕБАНИЯ СТРУИ В ЭЛЕКТРОННЫЙ СИГНАЛ И УСТРОЙСТВО ЕГО ВИБРОГАСЯЩЕГО ЗАКРЕПЛЕНИЯ

... 1. Измеритель расхода газа с преобразованием колебания струи в электронный сигнал, содержащий корпус с входным и выходным штуцерами, внутри которого помещено чувствительное к изменению давления устройство, содержащее генератор колебаний со струйными дискретными элементами, содержащими сопло питания, рабочую камеру и разделитель, на котором установлен пьезодатчик, формирующий сигналы о фактическом расходе газа, отличающийся тем, что в нем струйный генератор выполнен в виде стапелированных круглых пластин, снабженных соответствующими прорезями и разделителями потока, которые соединены в одно целое при помощи стяжных винтов, контейнер с пьезодатчиками дополнительно оснащен резиновой подкладкой, прижатой сверху резиновой накладкой, снаружи измеритель расхода газа закрыт кожухом, несущим на себе вилку электроразъема, внутри кожуха размещена плата с элементами электронной схемы. 2. Устройство виброгасящего закрепления измерителя расхода газа, содержащее элементы, превращающие энергию колебания ...

Математическая модель движения воды и твердого вещества в речном потоке

УСТРОЙСТВО ОПРЕДЕЛЕНИЯ РАСХОДА СРЕДЫ В ТРУБОПРОВОДЕ

... 1. Устройство определения расхода среды в трубопроводе, содержащее корпус, состоящий по меньшей мере из двух изолированных каналов, связанных с датчиками отбора давления, расположенными в плоскости сечения каждого канала, при этом датчики соединены с приемником перепада давления, отличающееся тем, что оно снабжено как минимум одним разделителем, расположенным внутри корпуса, для образования смежных каналов, причем разделители установлены в корпусе так, чтобы хотя бы один из каналов был сужающимся. 2. Устройство по п.1, отличающееся тем, что разделитель выполнен в виде пластины, два противоположных ребра которой сопряжены с внутренней боковой поверхностью корпуса. 3. Устройство по п.1, отличающееся тем, что разделитель выполнен в виде усеченного конуса. 4. Устройство по п.3, отличающееся тем, что разделитель в виде усеченного конуса установлен соосно с корпусом. 5. Устройство по пп.1-4, отличающееся тем, что торцевые части разделителей выполнены параллельными оси трубопровода. 6. Устройство ...

СПОСОБ ИЗМЕРЕНИЯ РАСХОДА ДВУХФАЗНОЙ ТРЕХКОМПОНЕНТНОЙ СРЕДЫ

Способ измерения расхода двухфазной трехкомпонентной среды, включающий калибровку многофазного расходомера, обработку результатов калибровочных работ, синтез математической модели движения двухфазной трехкомпонентной среды, определение интервала дебитов жидкости и нефтяного газа, при котором имеет место допустимая погрешность расчета дебитов нефти, воды и нефтяного газа, отличающийся тем, что в процессе калибровки многофазного расходомера и синтеза математической модели движения двухфазной трехкомпонентной среды определяют зависимость погрешности проверочных точек от среднего веса точек обучающей модели, а в процессе эксплуатации скважины снимают показания датчиков многофазного расходомера и определение покомпонентного расхода проводят при среднем весе обучающих точек, при котором имеет место минимальная погрешность проверочных точек.

СТРУЙНЫЙ АВТОГЕНЕРАТОРНЫЙ РАСХОДОМЕР-СЧЕТЧИК

Расходомер-счетчик, содержащий корпус в виде участка трубопровода, в проточном канале которого размещено СУ, струйный автогенератор с датчиком колебаний струи, установленный в байпасном канале и своим выходным каналом соединенный с узкой частью СУ, и устройство обработки выходного сигнала струйного автогенератора, отличающийся тем, что на обращенном к потоку торце сужающего устройства или внутренней поверхности трубы перед указанным торцом выполнен паз, образующий кольцевую щель между стенкой проточного канала и сужающим устройством, с которой соединен канал подвода струйного автогенератора, при этом глубина кольцевой щели не меньше диаметра канала подвода, а ее площадь не меньше площади поперечного сечения сопла питания струйного автогенератора.

СПОСОБ ИЗМЕРЕНИЯ РАСХОДА ДВУХФАЗНОЙ ТРЕХКОМПОНЕНТНОЙ СРЕДЫ

Способ измерения расхода двухфазной трехкомпонентной среды, включающей калибровку многофазного расходомера, обработку результатов калибровочных работ, синтез математической модели движения двухфазной трехкомпонентной среды, определение интервала жидкости и нефтяного газа, при котором имеет место допустимая погрешность расчета дебитов нефти, воды и нефтяного газа, отличающийся тем, что проводят гидродинамические исследования скважины на 3-5 стационарных режимах фильтрации, при этом измерение дебитов нефти, воды и нефтяного газа проводят с помощью измерительной установки, погрешность измерения расхода двухфазной трехкомпонентной среды которой не превышает допустимую погрешность при определении дебитов нефти, воды и нефтяного газа, а калибровку многофазного расходомера проводят на основе значений дебитов нефти, воды и нефтяного газа, определенных с помощью измерительной установки, синтез математической модели осуществляют на основе моделей самоорганизации, в качестве проверочных точек используют ...

СТРУЙНЫЙ МАССОВЫЙ РАСХОДОМЕР

Струйный массовый расходомер, содержащий струйный дискретный элемент с соплом питания, рабочей камерой, разделителем, имеющим центральный канал, вход которого соединен с рабочей камерой, двумя каналами обратной связи, входы которых расположены по разные стороны разделителя, а выходы - по разные стороны сопла питания, и двумя дренажными отверстиями, расположенными по разные стороны разделителя, преобразователь разности давлений, первый вход которого соединен с выходом центрального канала, а выход - с преобразователем электрического сигнала, состоящим из устройств выделения сигналов амплитуды и частоты пульсации разности давлений и их деления, отличающийся тем, что второй вход преобразователя разности давлений соединен с каналом сопла питания.

СИСТЕМА И СПОСОБ МОНИТОРИНГА УРОВНЯ ТОПЛИВА В ТОПЛИВНОМ РЕЗЕРВУАРЕ

... 1. Способ мониторинга уровня жидкого топлива в резервуаре, имеющем заданную емкость, причем резервуар соединен с подводящим топливным трубопроводом, по которому топливо подают в газообразной форме, заключающийся в том, что измеряют скорость подачи газообразного топлива, протекающего по подводящему трубопроводу, вычисляют объем израсходованного топлива на основе измеренной скорости подачи, определяют уровень оставшегося жидкого топлива в резервуаре на основе объема израсходованного топлива и емкости резервуара, осуществляют доставку жидкого топлива в резервуар в ответ на уровень оставшегося жидкого топлива. 2. Способ по п.1, отличающийся тем, что регулятор размещают в подводящем трубопроводе. 3. Способ по п.2, отличающийся тем, что используют модуль измерения расхода, имеющий процессор и память и предназначенный для измерения скорости подачи топлива, протекающего через подводящий трубопровод. 4. Способ по п.3, отличающийся тем, что модуль измерения расхода интегрирован с регулятором. 5.

РАСХОДОМЕР

Расходомер, содержащий корпус в виде участка трубопровода, сужающее устройство, входной и выходные каналы, струйный автогенератор с входным соплом, рабочей камерой, двумя соплами управления и двумя каналами обратной связи, в каждом из которых установлен пьезоэлектрический преобразователь, отличающийся тем, что струйный автогенератор выполнен в виде плоского диска с входным соплом, рабочей камерой и участками каналов обратной связи в виде сквозных профилированных прорезей и установлен в герметично закрытом основании, в нижней части которого выполнен продольный паз с цилиндрической поверхностью, по которой основание герметично соединено с трубопроводом, при этом входной и выходные каналы выполнены в виде отверстий в нижней части основания и в верхней части трубопровода, совмещенных соответственно с входным соплом и рабочей камерой, а в струйном автогенераторе выполнены туннельные выточки, посредством которых соединены участки каналов обратной связи, кроме того, сужающее устройство выполнено ...

Реактивный расходомер

Шахтный расходомер воздуха

Расходомер

Расходомер обтекания для жидкости или газа

DEVICE FOR MEASUREMENT OF DISCHARGE OF OPEN FLOWS

Устройство для измерения расхода открытых потоков

Использование: в водном хозяйстве и оросительных системах для измерения скорости и расхода воды в канале. Сущность изобретения: устройство содержит корпус 1 прямоугольного сечения, по которому перемещается поплавок 2. На корпусе закреплен самописец 3 и три блока, соединенные нитями 5 и 6 с поплавком. Средство удержания и перемещения датчиков выполнено в виде патрубка 7, внутри которого шарнирно установлен шток 8 с демпферными шайбами 9. втулкой 10 и датчиком 11 в виде конусного экрана. Посредством штока 8, шарниров 12 и блока 13 патрубок 7 соединен с контргрузом 14 и пером 16 самописца 17. К наименьшему бло устройства 4 прикреплена нить 18, которая проходит через блоки 19, 20, между которыми закреплено перо 21 самописца 3. Поплавок снабжен контргрузом 22. 1 ил. 18 19 (Л С 4 00 СЛ ь. 4 WS//S//////7 ...

Струйный преобразователь расхода

Изобретение относится к измерительной технике и позволяет повысить чувствительность устройства и расширить диапазон измерений Подаваемая от источника 1 питания измеряемая среда формируется каналами 4, 5 в виде двух встречно направленных струй с областью соударений в цилиндрической камере 8. Компенсация смещения этой области обеспечивается изменением поля скоростей в области выхода среды из соосных сопел 6 и 7 путем регулировки проводимости дросселей 2 и 3. Вследствие повышения давления в радиальном потоке в камере 8 часть среды через линию 11 обратной связи поступает в дополнительную подводящую камеру 12 с кольцевым соплом 13, концентрично охватывающую канал 4 с соплом 7, Зона соударений через отверстие 9 выходит за пределы камеры 8. Величина расхода характеризуется частотой колебаний давления в камере 8о 1 ИЛа Q S ...

Способ измерения расхода жидкости

Водомерное устройство для параболических лотков

Расходомер

Расходомер

Реактивный расходомер

FLUIDISCHER OSZILLATOR UND VERFAHREN ZUR MESSUNG EINER VOLUMENMENGE EINES FLUIDES DAS EINEN SOLCHEN OSZILLATOR DURCHSTRÖMT

VERFAHREN UND VORRICHTUNG ZUR MESSUNG DER FLÜSSIGKEITSSTRÖMUNG

DURCHFLUSSMESSER

Verfahren zur Messung des Erntegutmassestroms am Feldhäcksler

Stroemungsmesser

Ausloesevorrichtung fuer Schnellschlussorgane an grossen Rohrleitungen

SCHNELLER VOLUMENSTROMGEBER

VERFAHREN UND VORRICHTUNG ZUR DURCHFLUSSMENGENMESSUNG

Device for applying fluid medium to substrate has image acquisition device(s), image processor(s) for detection of time of transfer of drop from needle/capillary end to substrate as distance reduced

The device has a capillary or needle, a first arrangement for causing fluid to emanate from the end of the capillary or needle or to stick to the end, especially as a drop, and an arrangement for varying the distance of the capillary or needle from the substrate. At least one image acquisition device and image processor enable detection of the time of the transfer of a drop from the needle or capillary end to the substrate as the distance reduces. The device has a capillary (11) or needle, a first arrangement for causing the fluid to emanate from the end of the capillary or needle or to stick to the end, especially in the form of a drop (12), and another arrangement for varying the distance of the capillary or needle from the substrate (10). At least one image acquisition device (14) and at least one image processor enable detection of the time of the transfer of a drop from the needle or capillary end to the substrate as the distance is reduced. AN Independent claim is also included for ...

AUFTRIEBSKRAFT-STRÖMUNGSSENSOR ZUR MESSUNG VON FLUID-STRÖMUNGSGESCHWINDIGKEITEN

FLOW METER

An Improved Automatic Recording Apparatus for Measuring Gaseous Fluids.

... 14,218. Simon, C. F. June 15. [Addition to 19,169/09.] Anemometers. - The sliding and twisting slotted cylinder described in the parent Specification is replaced by a piston b, which determines the height of the gas passages, and a twisting slide h, which determines their breadth. A space is provided between the fixed cylinder a and the slide h to decrease friction. This space increases the breadth of the gas passages by a constant amount, but is prevented from effecting their height by a rib o on the cylinder a. The roller over which the suspending wire c passes is formed as a cam to compensate for changes in gaseous velocity due to different sizes of gas passages.

Fluid flowmeter

A fluidic flowmeter is located downstream of a valve. A wire gauze or net having small meshes is located on the upstream side of a nozzle forming the inlet to the fluidic element to stabilize flow.

Pressure sensing device adapted to corrosive or explosive atmospheres

METHOD OF FLOW MEASUREMENT AND FLOW METER

PCT No. PCT/SE84/00106 Sec. 371 Date Nov. 26, 1984 Sec. 102(e) Date Nov. 26, 1984 PCT Filed Mar. 23, 1984 PCT Pub. No. WO84/03824 PCT Pub. Date Oct. 11, 1984.A method of urine flow measurement where liquid in the form of a free-fall jet is collected in a collecting vessel and the vertical force produced by the collecting vessel on a measuring device, for example a scale or the like, is sensed, and the change in time of said force is utilized for obtaining a measure of the flow corresponding to the jet. The method is especially characterized in that the effect of the impulse of the jet on the sensed force is eliminated by deflecting the vertical flow constituted by the jet to a substantially horizontal flow by a rotating device before the liquid is caused to contact the vessel. The invention also relates to a flow meter.

Measuring fluid flow

A flowmeter has a sealed housing (11) with a tangential inlet and an axial outlet (17) for the fluid stream and defining an open flow-through compartment (15) containing a follower element (21) driven by the fluid stream along a circular guide track at a speed proportional to the volume flow rate of the fluid stream. The follower element is a cylindrical roller or other body of revolution whose axis (27) is parallel to the axis (22) of the guide track. The opposed end portions (21A, 21B) of the follower element have concentric cylindrical surfaces in rolling engagement with internal concentric cylindrical surfaces (19A, 20A) on the housing forming the outer flanks of the guide track. The surfaces (19A, 20A) and ends (21A, 21B) may be formed as toothed gears. ...

LEVEL DETECTING DEVICE FOR FLUENT MATERIAL

Improvements in pressure responsive measuring devices

... 548,267. Springs. BAILEY METERS & CONTROLS, Ltd. March 31, 1941, No. 4294. Convention date, April 26, 1940. [Class 108 (iii)] [Also in Group XIX] Springs for use in pressure gauges are constructed as in Fig. 8, or alternatively are formed by two similar zig-zag strips arranged side-by-side and connected at top and bottom by plates.

Improvements in fluid flowmeters

... 502,811. Flowmeters. NUTSFORD, A. Sept. 24, 1937, No. 25906. [Class 69 (i)] A flowmeter comprises a knife-edge orifice through which the fluid flows with turbulence and a resilient pressure responsive member of thin metal or like resilient material which is connected to the indicating element and which separates the high and low pressure sides of the instrument so that it is responsive to fluctuations in the pressure drop across the orifice. In the instrument shown the orifice 7 is formed in a flexible diaphragm 6 forming a wall of a capsule and constituting the pressureresponsive member, the fluid entering at 8 and, after passing the orifice 7, leaving at 9. Correction for variations in density may be provided by a float 19 which raises and lowers a pivoted arm 21 through which the diaphragm operates a lever 23 forming part of the indicatoroperating mechanism, thus altering the point of contact of the arm and lever and hence the effective transmission ratio of the mechanism.' The whole ...

VOLUMETRIC MEASUREMENT OF A FLUID STREAM IN A CONDUIT

Multi-phase flow-monitoring with an optical fiber distributed acoustic sensor

A method of monitoring multi-phase flow in a structure comprises receiving a set of distributed acoustic data from a distributed acoustic sensor arranged to monitor the structure and determining data distributions relating to one or more properties of the distributed acoustic data. The method further comprises calculating one or more properties of the distributions from the determined data distributions and determining changes in the composition of the flow in dependence on the calculated distribution properties. The data distributions may be acoustic frequency distributions and the properties of the distributions may be the kurtosis and/or the skewness of the distributions. The method may comprise identifying changes in the calculated distribution properties along the structure, such that the locations of any changes may indicate the location of changes in the composition of the multi-phase flow. The set of distributed acoustic data may comprise sub-sets of data recorded at respective ...

VORRICHTUNG ZUM MESSEN DER STRÖMUNGSGESCHWINDIGKEIT UND/ODER -RATE UND DEHNKÖRPER ZUM MESSEN DES DRUCKES EINES FLUIDEN MEDIUMS

FLOW METER

STEERED FLOW AUTOMATIC CONTROLLER

CONVERTER ON BASIS OF THE CORIOLIS EFFECT

FINE PARTICLE FLOW MEASURER

TROPFKAMMER

VERFAHREN ZUM ERMITTELN EINES DURCH EINEN FÜLLFEHLER BEDINGTEN MESSFEHLERS

Bei einem Verfahren zum Ermitteln eines durch einen Füllfehler, insbesondere die Anwesenheit von Gasblasen, bedingten Messfehlers (ρfehler) bei der Dichtemessung einer Flüssigkeit mit einem Dichtemessgerät (1), welches einen die zu messende Flüssigkeit beinhaltenden Biegeschwinger (2) aufweist, wobei in einem Messvorgang eine Periodendauer einer durch eine Anregeeinheit (3) angeregten Schwingung des Biegeschwingers (2) mit einer Messeinrichtung (4) gemessen und daraus die Dichte (ρFlüssigkeit) der Flüssigkeit mit einer Auswerteeinheit (5) ermittelt wird weist das Verfahren die die folgenden weiteren Schritte auf: Ermittlung einer ersten druckabhängigen Dichtedifferenz (∆ρ(P)) durch Subtraktion der bei einem ersten Messvorgang über ein Druckbeaufschlagungsmittel (6) mit einem ersten Druck (P0) beaufschlagten Flüssigkeit und der bei einem zweiten Messvorgang über das Druckbeaufschlagungsmittel (6) mit einem zweiten Druck (P) beaufschlagten Flüssigkeit ermittelten Dichte (ρfehler); Ermittlung ...

VORRICHTUNG ZUR ERMITTLUNG VON WENIGSTENS EINER VORGEBBAREN PHYSIKIALISCHEN EIGENSCHAFT VON GÜTERN IN EINEM MATERIALSTROM

Bei einer Vorrichtung (1) zur Ermittlung von wenigstens einer vorgebbaren physikalischen Eigenschaft von Gütern in einem Materialstrom (2), wobei die Vorrichtung (1) wenigstens eine Detektionseinrichtung (3) umfasst, wird vorgeschlagen, dass die wenigstens eine Detektionseinrichtung (3) wenigstens ein im Wesentlichen in Richtung des Materialstromes (2) angeordnetes und mit einem Kraftsensor (4) verbundenes Aufprallelement (5) umfasst, dass das Aufprallelement (5) eine Detektionsoberfläche (6) aufweist, dass die wenigstens eine Detektionseinrichtung (3) eine Auswerteeinheit umfasst, dass wenigstens ein erster Eingang der Auswerteeinheit mit wenigstens einem ersten Ausgang des Kraftsensors (4) verbunden ist, um einen Kraftmesswert von dem Kraftsensor (4) zu erhalten, dass die Auswerteeinheit ausgebildet ist, den ermittelten Kraftmesswert mit gespeicherten Kraftmesswerten zu vergleichen und durch eine Änderung des Kraftmesswertes auf eine Änderung der wenigstens einen vorgebbaren physikalischen ...

GESTEUERTER DURCHFLUSSREGLER

VORRICHTUNG ZUR ERMITTLUNG VON WENIGSTENS EINER VORGEBBAREN PHYSIKIALISCHEN EIGENSCHAFT VON GÜTERN IN EINEM MATERIALSTROM

Bei einer Vorrichtung (1) zur Ermittlung von wenigstens einer vorgebbaren physikalischen Eigenschaft von Gütern in einem Materialstrom (2), wobei die Vorrichtung (1) wenigstens eine Detektionseinrichtung (3) umfasst, wird vorgeschlagen, dass die wenigstens eine Detektionseinrichtung (3) wenigstens ein im Wesentlichen in Richtung des Materialstromes (2) angeordnetes und mit einem Kraftsensor (4) verbundenes Aufprallelement (5) umfasst, dass das Aufprallelement (5) eine Detektionsoberfläche (6) aufweist, dass die wenigstens eine Detektionseinrichtung (3) eine Auswerteeinheit umfasst, dass wenigstens ein erster Eingang der Auswerteeinheit mit wenigstens einem ersten Ausgang des Kraftsensors (4) verbunden ist, um einen Kraftmesswert von dem Kraftsensor (4) zu erhalten, dass die Auswerteeinheit ausgebildet ist, den ermittelten Kraftmesswert mit gespeicherten Kraftmesswerten zu vergleichen und durch eine Änderung des Kraftmesswertes auf eine Änderung der wenigstens einen vorgebbaren physikalischen ...

FLOW METER

DEVICE FOR MEASURING OR PROPORTIONING QUANTITIES OF LIQUIDS OR GASES

DEVICE FOR MEASURING OR PROPORTIONING QUANTITIES OF LIQUIDS OR GASES

MEASURING INSTRUMENTS WITH MOVING MAGNETS.

DOSING CHECKING DEVICE.

FLUID FLOWMETER.

EQUIPMENT FOR RECOGNIZING THE FLOW OF A VISCOUS MEDIUM THROUGH A LINE.

PROCEDURE FOR THE PROOF OF PARTICLES IN 2 - A PHASE CURRENT, A USE OF THE PROCEDURE AND A VACUUM CLEANER

ARRANGEMENT FOR SUPERVISING THE OUTPUT CURRENT OF A STEERING METERING PUMP.

EINFACHE, MECHANISCH ZU INSTALLIERENDE DURCHFLUSSMESSEINRICHTUNG FÜR TEILGEFÜLLTE GERINNE AUF BASIS EINES MESSVERFAHRENS FÜR VOLLGEFÜLLTE ROHRE

Einfache, mechanisch zu installierende Durchflußmeßeinrichtung für teilgefüllte Gerinne auf Basis eines Meßverfahrens für vollgefüllte Rohre. Diese kann ohne Umbaumaßnahmen an bestehenden Gerinnen eingebaut und betrieben werden. Die Erfindung betrifft eine Rohrreduzierung für Rundgerinne und eine Absperrvorrichtung mit Zwangsablauf für Rechteck- und sonstige Gerinneformen. Sie zeichnet sich dadurch aus, daß die zu messende Flüssigkeit zwangsweise durch ein Meßsystem für vollgefüllte Leitungen (magnetisch induktiver Durchflußmesser) geleitet wird.

STROEMUNGSMOMENTENMESSGERAET

ELEVATOR FOR BULK MATERIAL AND BELONGING TO APPARATUSES

Measuring organ of a fuel fuel injection system for mixture-consolidating, foreignignited internal-combustion engines

MORE IN AN INTEGRATED WAY, WITH TWO TECHNIQUES OF MEASUREMENTS FLOW SENSOR

MEASURING INSTRUMENT FOR THE ANNOUNCEMENT OF THE MAXIMUM EXPIRATORI BREATH AMPERAGE.

MEASURING INSTRUMENT FOR THE COLLECTION OF THE PROMOTION STRENGTH OF A SCHÜTTGUTSTROMES

PROCEDURE FOR THE CONDITION PROGNOSIS A FLOATED ELEMENT VOLUMETRIC FLOW METER

Dosierapparat

VОRRIСНТUNG ZUМ МЕSSЕN DЕR SТRÖМUNGSGЕSСНWINDIGКЕIТ UND/ОDЕR -RАТЕ UND DЕНNКÖRРЕR ZUМ МЕSSЕN DЕS DRUСКЕS ЕINЕS FLUIDЕN МЕDIUМS

VОRRIСНТUNG ZUМ МЕSSЕN DЕR SТRÖМUNGSGЕSСНWINDIGКЕIТ UND/ОDЕR -RАТЕ UND DЕНNКÖRРЕR ZUМ МЕSSЕN DЕS DRUСКЕS ЕINЕS FLUIDЕN МЕDIUМS

VОRRIСНТUNG ZUМ МЕSSЕN DЕR SТRÖМUNGSGЕSСНWINDIGКЕIТ UND/ОDЕR -RАТЕ UND DЕНNКÖRРЕR ZUМ МЕSSЕN DЕS DRUСКЕS ЕINЕS FLUIDЕN МЕDIUМS

VОRRIСНТUNG ZUМ МЕSSЕN DЕR SТRÖМUNGSGЕSСНWINDIGКЕIТ UND/ОDЕR -RАТЕ UND DЕНNКÖRРЕR ZUМ МЕSSЕN DЕS DRUСКЕS ЕINЕS FLUIDЕN МЕDIUМS

VОRRIСНТUNG ZUМ МЕSSЕN DЕR SТRÖМUNGSGЕSСНWINDIGКЕIТ UND/ОDЕR -RАТЕ UND DЕНNКÖRРЕR ZUМ МЕSSЕN DЕS DRUСКЕS ЕINЕS FLUIDЕN МЕDIUМS

VОRRIСНТUNG ZUМ МЕSSЕN DЕR SТRÖМUNGSGЕSСНWINDIGКЕIТ UND/ОDЕR -RАТЕ UND DЕНNКÖRРЕR ZUМ МЕSSЕN DЕS DRUСКЕS ЕINЕS FLUIDЕN МЕDIUМS

VОRRIСНТUNG ZUМ МЕSSЕN DЕR SТRÖМUNGSGЕSСНWINDIGКЕIТ UND/ОDЕR -RАТЕ UND DЕНNКÖRРЕR ZUМ МЕSSЕN DЕS DRUСКЕS ЕINЕS FLUIDЕN МЕDIUМS

VОRRIСНТUNG ZUМ МЕSSЕN DЕR SТRÖМUNGSGЕSСНWINDIGКЕIТ UND/ОDЕR -RАТЕ UND DЕНNКÖRРЕR ZUМ МЕSSЕN DЕS DRUСКЕS ЕINЕS FLUIDЕN МЕDIUМS

VОRRIСНТUNG ZUМ МЕSSЕN DЕR SТRÖМUNGSGЕSСНWINDIGКЕIТ UND/ОDЕR -RАТЕ UND DЕНNКÖRРЕR ZUМ МЕSSЕN DЕS DRUСКЕS ЕINЕS FLUIDЕN МЕDIUМS

VОRRIСНТUNG ZUМ МЕSSЕN DЕR SТRÖМUNGSGЕSСНWINDIGКЕIТ UND/ОDЕR -RАТЕ UND DЕНNКÖRРЕR ZUМ МЕSSЕN DЕS DRUСКЕS ЕINЕS FLUIDЕN МЕDIUМS

VОRRIСНТUNG ZUМ МЕSSЕN DЕR SТRÖМUNGSGЕSСНWINDIGКЕIТ UND/ОDЕR -RАТЕ UND DЕНNКÖRРЕR ZUМ МЕSSЕN DЕS DRUСКЕS ЕINЕS FLUIDЕN МЕDIUМS

VОRRIСНТUNG ZUМ МЕSSЕN DЕR SТRÖМUNGSGЕSСНWINDIGКЕIТ UND/ОDЕR -RАТЕ UND DЕНNКÖRРЕR ZUМ МЕSSЕN DЕS DRUСКЕS ЕINЕS FLUIDЕN МЕDIUМS

VОRRIСНТUNG ZUМ МЕSSЕN DЕR SТRÖМUNGSGЕSСНWINDIGКЕIТ UND/ОDЕR -RАТЕ UND DЕНNКÖRРЕR ZUМ МЕSSЕN DЕS DRUСКЕS ЕINЕS FLUIDЕN МЕDIUМS

VОRRIСНТUNG ZUМ МЕSSЕN DЕR SТRÖМUNGSGЕSСНWINDIGКЕIТ UND/ОDЕR -RАТЕ UND DЕНNКÖRРЕR ZUМ МЕSSЕN DЕS DRUСКЕS ЕINЕS FLUIDЕN МЕDIUМS

FLUIDIC OSCILLATOR TYPE FLOW METER

ULTRASONIC FLOW RATE MEASURING DEVICE AND ULTRASONIC FLOW RATE MEASURING METHOD

An ultrasonic flow rate measuring device which measures a flow rate of a medium flowing in the tube body, when one of a plurality of the ultrasonic transmitting-receiving means transmit an ultrasonic wave as a transmitting means, by making another one of a plurality of the ultrasonic transmitting-receiving means receive the ultrasonic wave as a receiving means, and when the other ultrasonic transmitting-receiving means transmit the ultrasonic wave as the transmitting means, by making the one ultrasonic transmitting-receiving means receive the ultrasonic wave as the receiving means, wherein an ultrasonic wave propagation control means which controls a propagation of the ultrasonic wave is equipped between the ultrasonic transmitting-receiving means as the transmitting means and the receiving means. Further, the ultrasonic flow rate measuring device is easily mounted to a tube body. 1. An ultrasonic flow rate measuring device , comprising:a pair of upper and lower sensor cases configured to open and close freely, which clamps a tube body inside which a fluid to be measured flows from above and below; andat least one sensor case embedded with a plurality of two or more semi-annular ultrasonic transmitting-receiving means, with a predetermined distance therebetween;and which measures a flow rate of a medium flowing in the tube body by one of a plurality of the ultrasonic transmitting-receiving means transmitting an ultrasonic wave as a transmitting means, and another one of a plurality of the ultrasonic transmitting-receiving means receiving the ultrasonic wave as a receiving means,wherein an ultrasonic wave propagation control means which controls a propagation of the ultrasonic wave is equipped between the ultrasonic transmitting-receiving means as the transmitting means and the receiving means.2. The ultrasonic flow rate measuring device according to claim 1 ,wherein a plurality of the ultrasonic transmitting-receiving means is configured from a pair of the ...

MEASURING TRANSDUCER OF VIBRATION-TYPE FOR A FLUID FLOWING IN A FLEXIBLE HOSE

The present invention relates to a measuring transducer of the vibration-type for a fluid flowing in a flexible hose. The measuring transducer includes, in such case, a hose carrier unit, which has at least sectionally a loop-shaped outer contour, around which a flexible hose can be led. Furthermore, the measuring transducer includes a clamping unit, by which a flexible hose led in use around the loop-shaped outer contour is tightenable against the loop-shaped outer contour, at least one exciter coupled to the hose carrier unit, by which the hose carrier unit is excitable to execute mechanical oscillations, which are accompanied by alternating elastic deformation of the hose carrier unit, and at least one oscillation sensor, by which mechanical oscillations of the hose carrier unit and/or a flexible hose installed in use in the measuring transducer are registerable. 116-. (canceled)17. A measuring transducer of the vibration-type for a fluid flowing in a flexible hose , comprising:a hose carrier unit, which has at least sectionally a loop-shaped outer contour, around which the flexible hose can be led;a clamping unit, by which the flexible hose led in use around said loop-shaped outer contour is tightenable against said loop-shaped outer contour;at least one exciter coupled to said hose carrier unit, by which said hose carrier unit is excitable to execute mechanical oscillations, which are accompanied by alternating elastic deformation of said hose carrier unit; andat least one oscillation sensor, by which mechanical oscillations of said hose carrier unit and/or the flexible hose installed in use in the measuring transducer are registerable.18. The measuring transducer as claimed in claim 17 , wherein:said hose carrier unit and the hose course of the flexible hose installed in use in the measuring transducer extend mirror symmetrically with reference to a symmetry plane (xz-plane); andthe symmetry plane extends between a hose entrance of said hose carrier unit and a ...

MICROMONITORING APPARATUS AND METHOD

An apparatus and method for monitoring sanitary sewer systems designed to carry away wastewater through a system of buried pipes, often referred to as “sewer lines”, to a sewage treatment facility, the apparatus and method use a weir which facilitates the collection of flow rate data in the sewer lines which in turn facilitates the determination of infiltration and inflow (“I/I”) of rain water, or clear water, into the sewer system in a manner which further allows the identification of specific I/I locations so that repair and construction of sewer systems can be efficiently coordinated. 1. A method of measuring flow characteristics in a sewer pipe , comprising: a weir that includes a low point having a height and one or more and lateral portions that lie lateral to the low point and that are higher than the height, the weir preventing wastewater that lies below the low point from passing downstream in the sewer pipe;', 'a ramp having an upstream portion that conforms to an interior of the sewer pipe, the ramp extending downstream from the upstream portion to the low point of the weir and shaped to direct at least portions of the flow of wastewater toward and over the low point of the weir; and', 'a sensing probe;, 'providing a micromonitoring apparatus in a sewer pipe at a measuring location, the micromonitoring apparatus comprisingmeasuring flow characteristics with the sensing probe.2. The method of claim 1 , wherein providing the micromonitoring apparatus includes inserting the micromonitoring apparatus into the sewer pipe from a ground level surface.3. The method of claim 2 , wherein measuring flow characteristics includes measuring flow characteristics of wastewater within the sewer pipe for at least one precipitation event claim 2 , andrecording the measurements of the wastewater characteristics.4. The method of claim 3 , further comprising:analyzing the measured characteristics to determine whether there is one of inflow and infiltration upstream from the ...

Pump mechanism, pump system, and manufacturing method of pump mechanism

A pump mechanism is provided, including a housing, a first impeller, a second impeller, and two driving modules. The housing includes a first recess, a second recess, a plate, a channel, an input pipe, a first output pipe, and a second output pipe. The plate is disposed between the first recess and the second recess. The channel passes through the plate and communicated with the first recess and the second recess. The input pipe is connected to the channel and passes through the housing and the plate. The first output pipe and the second output pipe are respectively communicated with the first recess and the second recess.

HYBRID SENSOR SYSTEM FOR GAS FLOW MEASUREMENTS

Disclosed are apparatus and methodology for measuring gas flow. A gas flow meter can include a plurality of sensors to detect a gas flow at various flow rates in the meter. A first sensor can detect a gas flow at a low flow rate and a second sensor can detect a gas flow when the flow rate is sufficient to produce an oscillating jet. The first sensor can be disposed parallel to the gas flow and detect the flow rate and the temperature of the gas flow. When the flow rate of the gas is below a predetermined threshold, power is supplied to the first sensor to detect gas flow. When the gas flow rate is high enough such that the gas flow produces an oscillating jet of fluid, power is supplied to the second sensor. The second sensor can detect the frequency of the oscillating jet flow. 1. A method for measuring gas flow in a meter , comprising:directing gas through the meter at various flow rates;detecting a gas flow of the gas with a first sensor when the gas is directed at a low flow rate;detecting an oscillation frequency of the gas with a second sensor when the gas is directed at a rate to produce an oscillating fluid jet of gas; anddetermining a flow rate based on outputs of at least one of the first sensor and the second sensor.2. A method as in claim 1 , wherein power is supplied to the first sensor and the second sensor based on the flow rate.3. A method as in claim 2 , wherein: initiating power to the first sensor;', 'detecting a voltage induced on the first sensor; and', 'determining a flow rate when the gas is directed at the low flow rate based on the voltage induced on the first sensor; and, 'detecting a gas flow of the gas with a first sensor when the gas is directed at a low flow rate comprises initiating power to the second sensor, the second sensor comprising a first oscillating jet frequency sensor and a second oscillating jet frequency sensor;', 'detecting the gas at the first oscillating jet frequency sensor; and', 'detecting the gas at the second ...

METHOD FOR DETERMINING THE FLOW RATE ACCORDING TO THE PLUMMET PRINCIPLE AND CORRESPONDING DEVICE

A method and device for determining the flow rate of a flowing medium according to the plummet principle is characterized by a simplified determination of the calibration data sets in that at least one set of calibration data is recorded with at least one reference medium under at least one reference measurement condition. Then, a position of a plummet which is dependent on the flowing medium is determined under a measurement condition which differs from the reference condition. Here, the set of calibration data is converted from the reference measurement condition to the measurement condition, and from a determined position of the plummet, a measure for the flow rate of the medium is then determined. 1. A method for determining the flow rate of a flowing medium according to the plummet principle , comprising the steps of:recording at least one set of calibration data for at least one reference medium under at least one reference measurement condition,determining a position of a plummet which is dependent on the flowing medium under a measurement condition which differs from the reference condition,converting the at least one set of calibration data from the reference measurement condition to the measurement condition, anddetermining a measure for the flow rate of the medium from the determined position.2. The method in accordance with claim 1 , wherein the set of calibration data is recorded at a first angle of movement of the plummet relative to the terrestrial gravitational field claim 1 , wherein the position of the plummet is determined at a second angle of movement of the plummet relative to the terrestrial magnetic field claim 1 , and wherein the first angle and the second angle differ from one another.3. The method in accordance with claim 2 , wherein the set of calibration data is recorded with a horizontal movement of the plummet claim 2 , wherein the position of the plummet is determined with a vertical movement of the plummet in a direction opposite to a ...

Device and method for determining the flow velocity of a fluid in a hollow body

A device and a method for determining the flow velocity of a fluid in a hollow body, including at least one disturbance device disposed in the hollow body and at least one sensor for identifying disturbances that are induced in the flow by the disturbance device, which is disposed at a certain distance downstream in the direction of flow from the disturbance device, wherein the disturbance device includes means for generating changeable disturbances in the fluid flow.

METHOD FOR DETERMINING A MASS FLOW COMPOSED OF BULK MATERIAL

A method for determining a mass flow composed of bulk material, in particular grain, which is conveyed by means of a continuous, circulating conveyor, having planar conveyor elements, from a lower bulk material receiving area to a higher bulk material delivery area, in which the bulk material delivered by the conveyor is deflected by a guide surface disposed in the bulk material delivery area toward a measuring device, wherein the mass flow is determined by the measurement of a resulting force (F_G) exerted on a sensor surface of the measuring device, wherein at least two parameters having an effect on the force measurement, in particular parameters independent of bulk material properties, are compensated for. A control and regulating device for executing the method for determining a mass flow composed of bulk material is also provided. 1. A method for determining a mass flow composed of bulk material , in particular grain , comprising:conveying the bulk material with a continuous, circulating conveyor, having planar conveyor elements, from a lower bulk material receiving area to a higher bulk material delivery area;deflecting the bulk material delivered by the conveyor with a guide surface disposed in the bulk material delivery area toward a measuring device;determining the mass flow by measuring a resulting force (F_G) exerted on a sensor surface of the measuring device; andcompensating for at least two parameters independent of bulk material properties having an effect on the force measurement when determining the mass flow.2. The method according to claim 1 , wherein the compensating for the at least two parameters comprises configuring the measuring device such that frictional forces transferred from the bulk material to the sensor surface claim 1 , in which a resulting frictional force (F_R) acts in a direction perpendicular to the measurement direction of the measuring device claim 1 , are not included in the measuring of the resulting force (F_G) exerted on ...

YIELD MONITORING APPARATUS, SYSTEMS, AND METHODS

Apparatus, systems and methods are provided for monitoring yield while harvesting grain. 1. An apparatus for measuring yield harvested by a harvesting machine including a clean grain elevator carrying a grain pile , the clean grain elevator having an upper sprocket and a lower sprocket , the upper sprocket and the lower sprocket defining an elevator plane , comprising:a sensor surface disposed above the upper sprocket, said sensor surface having a forward end and a rearward end, said forward end and said rearward end being located adjacent to the elevator plane.2. The apparatus of claim 1 , wherein grain within the grain pile that contacts said sensor surface has a velocity substantially parallel to the sensor surface immediately prior to contacting the sensor surface.3. The apparatus of claim 2 , wherein the grain pile has a velocity substantially parallel to the sensor surface while contacting the sensor surface.4. The apparatus of claim 1 , further including a pre-sensor surface adjacent to the sensor surface claim 1 , said pre-sensor surface disposed to allow substantially continuous grain flow from said pre-sensor surface to said sensor surface.5. The apparatus of claim 4 , wherein a vertical offset between said pre-sensor surface and said sensor surface is smaller than ten hundredths of an inch.6. The apparatus of claim 4 , further including a post-sensor surface adjacent to the sensor surface claim 4 , said post-sensor surface disposed to allow substantially continuous grain flow from said post-sensor surface to said sensor surface.7. The apparatus of claim 1 , wherein said sensor surface is deflected in simple translation by contact with the grain pile.8. The apparatus of claim 7 , wherein said sensor surface is deflected by less than 10 hundredths of an inch.9. The apparatus of claim 7 , further comprising:a displacement sensor disposed to measure deflection of said sensor surface.10. The apparatus of claim 9 , wherein said sensor surface is substantially ...

METHOD OF, AND APPARATUS FOR, MEASURING THE MASS FLOW RATE OF A GAS

There is provided a meter for measuring the mass flow rate of a gas, the meter comprising a conduit through which the gas flows in use, the conduit having a flow restriction orifice through which choked flow occurs in use, the flow restriction orifice dividing the conduit into an upstream portion upstream of said orifice and a downstream portion downstream of said orifice, the meter further comprising a sensor assembly including a first piezoelectric crystal oscillator in said upstream portion such that said first piezoelectric oscillator is in contact with said gas when the meter in use, a second piezoelectric crystal oscillator in said downstream portion such that said second piezoelectric oscillator is in contact with said gas when the meter in use, said sensor assembly being arranged: to drive the first and second piezoelectric crystal oscillators such that each of the first and second piezoelectric crystal oscillators resonate at respective resonant frequencies; to measure the resonant frequency of the first piezoelectric oscillator and the resonant frequency of resonant frequency of the first piezoelectric oscillator and the the second piezoelectric oscillator; and to determine, from the resonant frequency of the second piezoelectric oscillator, the mass flow rate of gas through said orifice. 1. A method of measuring the mass flow rate of a gas through an orifice , the method using a first piezoelectric oscillator in contact with the gas upstream of the orifice and a second piezoelectric oscillator in contact with the gas downstream of the orifice and comprising;a) driving the first and second piezoelectric crystal oscillators such that each of the first and second piezoelectric crystal oscillators resonate at respective resonant frequencies;b) measuring the resonant frequency of the first piezoelectric oscillator and the resonant frequency of the second piezoelectric oscillator; andc) determining, from the resonant frequency of the first piezoelectric ...

Vibronic Sensor

A method to determine and/or monitor at least one process variable of a medium with at least one vibration-capable unit. The vibration-capable unit is excited to mechanical vibrations by means of an electrical excitation signal of an adjustable frequency; wherein the mechanical vibrations are transduced into a received electrical signal, which is characterized at least by a frequency and/or a phase and/or an amplitude. The excitation signal is generated based on the received signal; wherein the voltage values of the received signal are sampled at specified predetermined points in time, starting from the excitation signal. The real part and the imaginary part of the received signal are determined from the sampled voltage values of the received signal by means of a Goertzel algorithm; wherein at least one Goertzel coefficient—in particular the number of the sample values and/or an operating frequency and/or a sample frequency—is provided for performing the Goertzel algorithm. At least the current phase and/or the current amplitude of the received signal are calculated from the real part and the imaginary part of the received signal; wherein the frequency of the excitation signal is adjusted such that a predeterminable phase shift is present between the excitation signal and the received signal; and wherein the at least one process variable is determined. 117-. (canceled)18. A method to determine and/or monitor at least one process variable of a medium with at least one vibration-capable unit , comprising the steps of:exciting the vibration-capable unit to mechanical vibrations by means of an electrical excitation signal of an adjustable frequency;transducing the mechanical vibrations into a received electrical signal, which received electrical signal is characterized at least by a frequency and/or a phase and/or an amplitude, said electrical excitation signal is generated based on said received signal;sampling the voltage values of said received electrical signal at ...

Fluid momentum detection method and related apparatus

A method is provided for determining fluid momentum through one or more conduits. The method comprises the step of receiving an elongation signal from an elongation sensor indicating an elongation of the one or more conduits due to the flowing fluid. A momentum term is then calculated.

MONITORING SYSTEM AND WATER FILTER MAINTENANCE METHOD

A water flow measuring device comprises: a) a main body provided with a water flow sensor through which water can flow when demand therefor is made by a water supply system; and, b) data collecting circuitry suitable to collect data generated by said water flow sensor; said water flow sensor being provided with a plugging element coupled with a spring constricting element, which is suitable to block the flow of water therethrough when the water pressure at the inlet of said sensor is smaller than the mechanical pressure applied by said spring constricting element. 1. A water flow measuring device comprising:a) a main body provided with a water flow sensor through which water can flow when demand therefor is made by a water supply apparatus;b) data collecting circuitry suitable to collect data generated by said water flow sensor;wherein said water flow sensor is provided with a plugging element coupled with a spring constricting element, which is suitable to block the flow of water therethrough when the water pressure at the inlet of said sensor is smaller than the mechanical pressure applied by said spring constricting element.2. A water flow measuring device according to claim 1 , wherein the plugging element is suitable to actuate a proximity sensor.3. A water flow measuring device according to claim 2 , wherein the proximity sensor is a reed switch and the plugging element is provided with a magnet.4. A water flow measuring device according to claim 3 , wherein the reed switch is a step switch provided with individually identifiable locations suitable to determine the position of the plugging element relative to it.5. A water flow measuring device according to claim 1 , characterized in that it is provided with peripheral slots the flow of water through which is blocked when the plugging element does not apply pressure against the spring constricting element.6. A water flow measuring device according to claim 5 , wherein displacement of the plugging element ...

MINIATURE FLOW SENSOR WITH SHROUD

A flow sensor assembly including a top flowtube that defines an inlet port, an outlet port, and a main channel. An inlet flow channel fluidly may connect the inlet port of the flow sensor assembly to the main channel. An outlet flow channel fluidly may connect the main channel to the outlet port. The bottom flowtube may include a shroud which acts as a cover over an electronic circuit board. The shroud may eliminate a step, created by the flow sensor, to provide a continuous flow path over the sensor. The channels may be formed to utilize the entire footprint of the flow sensor assembly. 1. A flow sensor assembly , comprising:a housing defining:an inlet port connected to an inlet flow channel;an outlet port connected to an outlet flow channel;a top flowtube;a bottom flowtube with a shroud;an electronic circuit board; anda sensor; andwherein the housing is configured such that the top flowtube and the bottom flowtube are capable of being overlaid on the circuit board.2. The flow sensor assembly of claim 1 , wherein the flow sensor has a footprint less than 200 mm.3. The flow sensor assembly of claim 1 , wherein the inlet port feeds into an inlet channel that follows a circuitous path with two or more bends.4. The flow sensor assembly of claim 1 , wherein the top flowtube includes molded-in channels.5. The flow sensor assembly of claim 4 , wherein the top flowtube channels are formed over the bottom flowtube and utilize the entire footprint of the housing.6. The flow sensor assembly of claim 1 , wherein the bottom flowtube acts as a cover over the electronic circuit board.7. The flow sensor assembly of claim 6 , wherein the bottom flowtube includes a molded-in channel.8. The flow sensor assembly of claim 1 , wherein the shroud contains walls located around the flow sensor.9. The flow sensor assembly of claim 8 , wherein the shroud includes a step less than the height of the flow sensor.10. The flow sensor assembly of claim 8 , wherein the bottom flowtube has a gap ...

CATALYST FLOW SENSOR

A catalyst alarm system for resin/catalyst spray applications, the system having a first flow sensor that monitors whether a catalyst from a manifold is flowing for supply to a spay gun or other applicator at a specified minimum rate; a second flow sensor that detects if the catalyst is flowing out of a bypass conduit of the manifold, which indicates the catalyst is not being mixed with the resin; a third flow sensor that detects if the catalyst is flowing out of an over-pressure conduit of the manifold, which indicates that only a partial amount of the required catalyst is being mixed with the resin; and monitoring circuitry for providing alarm and/or control features based on activation combinations of the three flow sensors. 113-. (canceled)14. A flow monitoring system , comprising:a source of pressurized liquid capable of providing a feed flow of the liquid, or a recirculating flow of a liquid, or an overpressure flow of the liquid, or combinations thereof;a first flow sensor for receiving the feed flow of the liquid and sensing flow characteristics associated with the feed flow of the liquid;a second flow sensor for receiving the recirculating flow of the liquid and sensing recirculating characteristics associated with the recirculating flow of the liquid;a third flow sensor for receiving the overpressure flow of the liquid and sensing flow characteristics associated with the overpressure flow of the liquid; andan electronic circuit including:a first alarm that is activated if the first flow sensor detects that the feed flow is below a predetermined minimum flow rate;a second alarm that is activated if the second flow sensor detects the recirculating flow; anda third alarm that is activated if the third flow sensor detects the overpressure flow.15. (canceled)16. (canceled)17. The system of claim 14 , wherein the liquid comprises a catalyst liquid.18. The system of claim 17 , wherein the catalyst liquid comprises methyl ethyl ketone peroxide.19. The system of ...

PNEUMATIC SENSOR IN ELECTRONIC CIGARETTE, DEVICE FOR PROCESSING AIRFLOW, AND ELECTRONIC CIGARETTE

A pneumatic sensor in an electronic cigarette, a device for processing airflow and an electronic cigarette are provided. The pneumatic sensor in the electronic cigarette includes a housing, defining a chamber and provided with a window at a top of the housing, an air inlet at a side wall of the housing, and at least one suction hole at a bottom of the housing, the window, the air inlet, and the suction hole all being communicated with the chamber; a vibrating film unit, disposed inside the housing and provided with a vibrating film capable of vibrating under airflow; and an electrode plate, acting as a signal outputting end of the pneumatic sensor in the electronic cigarette, and the vibrating film has a fixed end fixed to the vibrating film unit and a free end. 1. A pneumatic sensor in an electronic cigarette , comprising:a housing, defining a chamber and provided with a window at a top of the housing, an air inlet at a side wall of the housing, and at least one suction hole at a bottom of the housing, the window, the air inlet, and the suction hole all being communicated with the chamber;a vibrating film unit, disposed inside the housing and provided with a vibrating film capable of vibrating under airflow; andan electrode plate, acting as a signal outputting end of the pneumatic sensor in the electronic cigarette,wherein the vibrating film has a fixed end fixed to the vibrating film unit and a free end.2. The pneumatic sensor in the electronic cigarette according to claim 1 , wherein the vibrating film unit also comprises an upper gasket claim 1 , a supporting ring claim 1 , and a lower gasket disposed in parallel claim 1 , both the upper gasket and the lower gasket are provided with an opening at a position corresponding to that of the air inlet claim 1 , the fixed end of the vibrating film is fixedly disposed at such a position of the supporting ring that the fixed end corresponds to the openings of the upper gasket and the lower gasket.3. The pneumatic sensor ...

Module For Gas Flow Measurements

Disclosed are apparatus and methodology for measuring gas flow using a modular unit as a gas measurement module. The modular unit can be made of molded plastic, cast metal, or other material. A gas meter can include the gas measurement module. The gas measurement module includes a chamber with an inlet and an outlet. An obstacle in the chamber is configured to generate an oscillating gas jet when gas flow into the chamber is at or above a threshold flow rate. The gas measurement module includes a dual sensing assembly with one or more first sensors using a first gas flow sensing technology and one or more second sensors using a second gas flow sensing technology. 1. A gas meter , comprising:a housing having an inlet and an outlet; a chamber with an inlet and an outlet;', 'an obstacle disposed in the chamber, wherein the obstacle is configured to generate an oscillating gas jet when flow of gas into the chamber is at or above a threshold flow rate; and', 'a dual sensing assembly disposed in the modular unit, wherein the dual sensing assembly comprises one or more first sensors using a first gas flow sensing technology and one or more second sensors using a second gas flow sensing technology., 'a gas measurement module disposed within the housing, the gas measurement module comprising a modular unit including2. The gas meter of claim 1 , wherein the modular unit comprises a molded plastic enclosure.3. The gas meter of claim 1 , wherein the modular unit comprises a cast metal enclosure.4. The gas meter of claim 1 , wherein the inlet is on a same side of the housing as the outlet.5. The gas meter of claim 1 , wherein the housing comprises a cast metal enclosure.6. The gas meter of claim 5 , wherein the cast metal comprises aluminum.7. The gas meter of claim 1 , wherein the one or more first sensors are configured to measure gas flow rates below the threshold flow rate claim 1 , and the one or more second sensors are configured to measure gas flow rates at or above the ...

FORCE MEASUREMENT DEVICE FOR FLUID CONTROL VALVE

A force measurement device for a fluid control valve is disclosed, in which a force measurement device is coupled between a driving axle of a driver device and a valve rod of a fluid control valve. The force measurement device includes a sensor seat, which is coupled between the driving axle of the driver device and the valve rod of the fluid control valve. A plurality of stress detection units are arranged and positioned on the sensor seat in an annular configuration and are spaced from each other by an angle. The plurality of stress detection units are operable to measure a magnitude of a force applied to the valve rod according to deformation of the sensor seat and generates a plurality of stress variation signals that are transmitted to a control device. 1. A force measurement device for a fluid control valve having a valve rod connected to a driver device , the driver device comprising a driving axle that drives the valve rod of the fluid control valve , the force measurement device being coupled between the driving axle of the driver device and the valve rod of the fluid control valve , comprising:a sensor seat coupled between the driving axle of the driver device and the valve rod of the fluid control valve;a plurality of stress detection units arranged and positioned on the sensor seat in an annular configuration and are spaced from each other by an angle, the plurality of stress detection units being operable to measure a magnitude of a force applied to the valve rod according to deformation of the sensor seat and generating a plurality of stress variation signals that are transmitted to a control device; anda coupling seat fastened between the fluid control valve and the driver device by a plurality of fastener elements, the coupling seat comprising:a first opening that is adjacent to and corresponding to the driver device to receive extension of the driving axle of the driver device therethrough,a second opening that is adjacent to and corresponding to ...

INSTANT WATER HEATER

An open-vented instant water heater is configured so as to prevent damaging thereof in cases of incorrect installation. The water heater comprises a water canister with a heating element and has a normally open outlet pipe, wherein the outlet pipe is provided with a flow sensing device comprising: a one-way valve which allows water to flow from the canister toward the outer end of the outlet pipe while preventing a water flow in the opposite direction, and/or a water flow mechanism adapted to switch the heating element OFF whenever detecting in the outlet pipe either a water flow towards the canister, or absence of any water flow. 1. An open-vented instant water heater configured so as to prevent damaging thereof in case of incorrect installation; said water heater comprises a water canister with a heating element and a normally open outlet pipe , a one-way valve, allowing a water flow from the water canister outside, while preventing a water flow in the opposite direction;', 'an outlet water flow mechanism, adapted to switch the heating element OFF whenever detecting in the outlet pipe either absence of a water flow, or a water flow in said opposite direction., 'wherein the outlet pipe is provided with a flow sensing device comprising at least one of the following2. The water heater according to claim 1 , arranged so as to have:an input pipe,said water canister being in flow communication with the input pipe and the outlet pipe,said heating element adapted for instantly heating water in the canister,a thermostat in the canister, water flow via the input pipe is regulated by a water valve, and', 'the heating element is controllable using said water pressure mechanism or said inlet water flow mechanism, by switching the heating element ON when a predetermined water pressure or a predetermined water flow is determined in the input pipe., 'a water pressure mechanism or an inlet water flow mechanism, being associated with the input pipe for respectively determining ...

Flow Meter for a Fluid with a Pulsating Flow

A flow meter for a fluid with a pulsating flow includes a piezo transducer for receiving and converting fluid pulses into electrical pulses, a AC/DC converter circuit for cumulatively storing the pulse energies of the electrical pulses in an energy store, a counter for counting the electrical pulses during a time interval, an evaluation device for determining a pulse parameter indicative of the flow rate of at least one of the electrical pulses and for determining a flow value based on the electrical pulses counted within the time interval and the determined pulse parameter, a communication device for the preferably wireless transmission of the determined flow value and a power supply device for the exclusive power supply of the flow meter with the energy stored in the energy store. 1. A flow meter for a fluid with a pulsating flow , the flow meter comprising:a piezo transducer for receiving and converting fluid pulses into electrical pulses;an AC/DC converter circuit for cumulatively storing the pulse energies of the electrical pulses in an energy store;a counter for counting the electrical pulses during a time interval;an evaluation device for determining a pulse parameter indicative of a flow rate of at least one electrical pulses of the electrical pulses and for determining a flow value based on the electrical pulses counted within the time interval and the determined pulse parameter;a communication device for sending the determined flow value; anda power supply device for exclusively supplying power of the flow meter with the energy stored in the energy store.2. The flow meter as claimed in claim 1 , wherein in order to determine the flow-relevant pulse parameter the evaluation device detects an energy input of the at least one electrical pulse into the energy store as energy accumulated in the energy store within the time interval.3. The flow meter as claimed in claim 1 , wherein the evaluation device detects at least one of (i) a duration claim 1 , (ii) ...

METHOD OF, AND APPARATUS FOR, MEASURING THE FLOW RATE OF A GAS

There is provided a meter for measuring the flow rate of a gas along a conduit, the meter comprising a sensor assembly including a piezoelectric crystal oscillator comprising two planar tines in contact with, and extending into, said gas flow when the meter is in use, said sensor assembly being arranged: to measure the voltage generated by movement of the planar tines of said piezoelectric oscillator in the gas flow along the conduit; and to determine, from the generated voltage, the flow rate of gas along said conduit. 1. A method of measuring the flow rate of a gas along a conduit , the method comprising:a) locating a piezoelectric oscillator extending into the conduit and in contact with the gas, said piezoelectric oscillator comprising two parallel planar tines arranged to oscillate in response to a gas flow along the conduit;b) measuring the magnitude of the voltage generated by oscillatory movement of the planar tines of said piezoelectric oscillator in the gas flow along the conduit; andc) determining, from the magnitude of the generated voltage, the flow rate of gas along said conduit.2. A method according to claim 1 , wherein step a) comprises locating the planar tines of the piezoelectric oscillator substantially perpendicular to the flow of gas.3. A method according to claim 1 , wherein step b) further comprises amplifying the voltage generated by the piezoelectric oscillator.4. A method according to claim 3 , wherein step c) further comprises calculating the cube root of the amplified voltage to determine the flow rate of gas.5. A method according to claim 1 , further comprising the step of:d) determining the density of the gas from the resonant frequency of the piezoelectric oscillator.6. A method according to claim 6 , wherein step d) further comprisese) driving the piezoelectric oscillator at a resonant frequency.7. A meter for measuring the flow rate of a gas along a conduit claim 6 , the meter comprising a sensor assembly including a piezoelectric ...

MONITORING OF A FLUIDIC FREE JET

A system and method for monitoring a dispensed fluid jet with an oscillation nozzle, comprising a main channel and at least one secondary channel surrounding the main channel, wherein the nozzle has an inlet and an outlet for an air flow defining a flow axis running centrally through the main channel, characterized in that the secondary channel comprises a drill hole. 1. An oscillation nozzle , comprising a main channel and at least one secondary channel surrounding the main channel , wherein the nozzle has an inlet and an outlet for an air flow defining a flow axis running centrally through the main channel , characterized in that the secondary channel comprises a drill hole.2. The nozzle according to claim 1 , wherein the outlet comprises a sensor for measuring the oscillation of the air flow.3. The nozzle according to claim 2 , wherein the sensor is a pressure sensor.4. The nozzle according to claim 1 , further comprising a second secondary channel which surrounds the main channel opposite of a first secondary channel.5. A system comprising:an oscillation nozzle, comprising a main channel and at least one secondary channel surrounding the main channel, wherein the nozzle has an inlet and an outlet for a fluid defining a flow axis running centrally through the main channel, characterized in that the secondary channel comprises a drill hole; anda sensor for sensing the oscillation frequency.6. The system according to claim 5 , wherein the sensor is arranged within the outlet of the nozzle.7. The system according to claim 5 , wherein the sensor is a pressure sensor.8. The system according to claim 5 , comprising a control member connected to the pressure sensor for monitoring the oscillation frequency to a predefined intended frequency.9. The system according to claim 5 , wherein the outlet of the nozzle comprises a sensor for measuring the oscillation of the air.10. The system according to claim 5 , wherein the nozzle comprises a second secondary channel which ...

VIBRATION DAMPER FOR SENSOR HOUSING

A sensor probe comprises a tube, a sensor element and an absorber mass. The tube is for placement in a process fluid flow within a fluid conduit and comprises a first end for coupling to the fluid conduit and a second end for insertion into the process fluid flow. The sensor element is in communication with the tube. The absorber mass is coupled to the tube and is configured to dampen vibration of the tube when inserted in the process fluid flow. 1. A sensor probe comprises: a first portion for coupling to the fluid conduit; and', 'a second portion for insertion into the process fluid flow;, 'a tube for placement in a process fluid flow within a fluid conduit, the tube comprisinga sensor element in communication with the tube; andan absorber mass located within and coupled to the tube and is configured to dampen vibration of the tube when the tube is inserted in the process fluid flow.2. The sensor probe of wherein the absorber mass has a mass claim 1 , damping coefficient and spring rate configured to reduce peak amplitudes in a range of frequencies produced by the process flow.3. The sensor probe of wherein the absorber mass is adjacent a distal end of the second portion of the tube.4. The sensor probe of wherein the sensor probe further includes:a fluid surrounding the absorber mass so as to be able to flow around the absorber mass.5. The sensor probe of wherein the absorber mass includes:a plurality of holes extending through the absorber mass.6. The sensor probe of wherein different holes of the plurality of holes extend through the absorber mass at different orientations.7. The sensor probe of wherein the absorber mass comprises a porous body.8. The sensor probe of wherein the absorber mass comprises a squeeze film damper.9. The sensor probe of wherein the tube includes:a flow modifying element extending from an exterior of the tube to reduce vortex-shedding of process fluid flowing past the tube.10. The sensor probe of wherein the absorber mass is ...

METHOD AND MEASURING DEVICE FOR DETERMINING MEASUREMENT INFORMATION

A method for determining measurement information includes conducting waves excited by first oscillation transducers to second oscillation transducers or back to the first transducers and recording to determine measurement data. The measurement information is determined using first and second data or first data determine an excitation parameter of a second wave. The first transducers excite the second wave with polarities reversed relative to a polarity for excitation of a first wave, or subgroups of the first transducers operate differently to excite the first and second waves, and/or first and second subgroups of the first or second transducers are used for recording. Only measurement signals of the first subgroup are used, or measurement signals of first and second subgroups are added to record the first data. Only measurement signals of the second subgroup are used, or measurement signals of subgroups are subtracted, or vice versa, to record second data. 1. A method for determining measurement information with a measuring device or a flow meter having a measuring tube for at least one of receiving a fluid or conducting a fluid flow through the measuring tube , the method comprising the following steps:exciting first and second waves conducted in a side wall of the measuring tube in chronological succession by using first oscillation transducers disposed on the side wall of the measuring tube and conducting the first and second waves directly in the side wall or indirectly through the fluid to second oscillation transducers disposed on a further side wall of the measuring tube or along a propagation path back to the first oscillation transducers, and recording the first and second waves there to determine first measurement data for the first wave and second measurement data for the second wave;using the measurement information being determined as a function of the first and second measurement data or the first measurement data to determine a parameter of the ...

METHODS FOR DESIGNING A FLOW CONDUIT AND APPARATUS THAT MEASURES DEFLECTION AT MULTIPLE POINTS TO DETERMINE FLOW RATE

Apparatus and methods for designing a system that measures deflection at multiple points and in various axes and how it relates to flow measurement are described. A system for continuously measuring the mass flow of a media includes one or more cartridges, one or more displacement sensing devices, and a processor. The one or more cartridges are connected serially between an inflow and outflow media pipe. The one or more displacement-sensing devices is configured to detect displacement changes of the one or more cartridges at two or more separate points on the cartridge(s) when the media flows through the cartridge(s). The processor is configured to calculate the flow of the media based on the detected displacement changes of the one or more cartridges at the one or more separate points. 1. A system for continuously measuring the flow of a media , comprising:a. one or more cartridges connected serially between an inflow and outflow media pipe;b. one or more displacement sensing devices configured to detect displacement changes of the one or more cartridges at two or more separate points of the one or more cartridges when the media flows through the one or more cartridges;c. a processor configured to calculate the flow of the media based on the detected displacement changes of the one or more cartridges at one or more separate points.2. The system of claim 1 , further comprising a temperature-sensing device claim 1 , wherein the processor is configured to calculate the flow of the media based further on the temperature measured in the one or more cartridges measured by the temperature-sensing device.3. The system of claim 1 , further comprising a pressure sensing device claim 1 , wherein the processor is configured to calculate the flow of the media based further on the pressure measured in the one or more cartridges as measured by the pressure sensing device.4. The system of claim 1 , further comprising a vibration sensing device claim 1 , wherein the processor is ...

WIND NOISE ANALYZER AND WIND NOISE ANALYSIS METHOD

A wind noise analyzer includes: an unsteady computational fluid dynamics calculation unit configured to execute an unsteady computational fluid dynamics simulation involving moving a structure model modeled on a structure, and calculate, for each of spatial nodes, an average flow velocity and an average vorticity over a predetermined time in a flow field inside the predetermined region, and then calculate, for each of the spatial nodes, a value based on an amplitude of a turbulent flow velocity inside the predetermined region, in an angular frequency band of interest; and a pressure source density calculation unit configured to calculate, based on the average flow velocity, the average vorticity, and the value based on the amplitude of the turbulent flow velocity, a pressure source density.

Flow or Level Sensor/Switch System

A flow or level switch comprises a sensor/switch assembly which is adapted for mounting in connection with either a fitting having an offset defining a channel to detect fluid flow through an orifice into the channel or a tank having a ball float to detect the level of the ball float in the tank. A switch module comprises a control rod which reciprocates and activates a switch unit having a bi-positionable contact member. A follower, which may be in the form of an axle with an angularly fixed projection, engages the control rod to cause the contact member to move. 1. A sensor/switch assembly comprising:a fitting having an inlet and an outlet with an offset defining a channel and interiorly having a structure forming an annular orifice so that fluid can communicate from said inlet to said outlet through said orifice and channel; a controller partially received in said channel and having a shuttle engageable with said structure and displaceable therefrom and an intermediate collar;', 'a mount assembly mountable to said offset and slidably receiving said controller for reciprocal movement therein;', 'a spring assembly comprising a first spring exerting a first force between said shuttle and said collar and a second spring exerting a second force between said mount assembly and said collar, said first force being greater than said second force;', 'a contact module defining a bi-positionable contact member contactable against a first contact or a second contact and having an actuator which is actuatable by a lever to move said contact member;', 'a pivotal follower which engages said controller and is pivoted by the position of said controller to displace said lever;, 'a switch module comprisingso that when fluid flows from said inlet through said orifice above a flow set point dynamic pressure, said contact member moves to a changed contact position and maintains said changed contact position until said flow pressure is reduced below said set point pressure.2. The sensor ...

NON-INTRUSIVE FLOW MEASUREMENT AND DETECTION SYSTEM

A non-intrusive flow measurement and detection device is provided. The device includes a first transducer; a second transducer; and detection/reporting circuitry coupled to the first and second transducers. The non-intrusive flow measurement and detection device is mounted to a pipe or conduit with the first and second transducers in contact with an outer surface of the pipe or conduit. The first transducer detects and measures vibration in the pipe or conduit in response to gas or liquid flowing through the pipe or conduit. The second transducer detects and measures sound in the pipe or conduit in response to gas or liquid flowing through the pipe or conduit. The detection/reporting circuitry compares the measured flow and flow rate determined by the first and second transducers with established limits to determine if the flow and flow rate is within the established limits. 1. A non-intrusive flow measurement and detection device comprising:a transducer; and the non-intrusive flow measurement and detection device is mounted to a pipe or conduit with the transducer in contact with an outer surface of the pipe or conduit;', 'the transducer determines the presence of flow of a gas or liquid through the pipe or conduit and measures the flow rate; and', 'the detection/reporting circuitry compares the measured flow rate with established limits to determine if the flow rate is within the established limits., 'detection/reporting circuitry coupled to the transducer, wherein2. The device of claim 1 , wherein the transducer detects and measures vibration in the pipe or conduit in response to gas or liquid flowing through the pipe or conduit.3. The device of claim 1 , wherein the transducer detects and measures sound in the pipe or conduit in response to gas or liquid flowing through the pipe or conduit.4. The device of claim 1 , wherein the transducer is a piezoelectric device.5. The device of claim 1 , wherein the transducer is a microphone.6. The device of claim 1 , ...

Intravenous flow control system

THE PRESENT INVENTION DEALS WITH AN IMPROVED METHOD AND APPARATUS FOR MEASURING FLOW IN AN INTRAVENOUS FEEDING SYST EM OR OTHER FLUID FLOW SYSTEM CHARACTERIZED BY ITS LOW FLOW RATE. THE INVENTION UTILIZES THE TRANSIT TIME OR OSCILLATORY FREQUENCY OF A BALL OF FLOAT WHICH MOVES ALONG THE DIRECTION OF FLUID FLOW AND IS RETURNED TO ITS ORIGINAL POSITION BY ACTUATING A MAGNETIC RETURN SYSTEM AS ITS BREAKS A LIGHT BEAM OR OTHER SENSING SYSTEM. THE CYCLE IS REPEATED, WITH THE TRANSIT TIME OR OSCILLATORY FREQUENCY BEING RELATED TO RATE OR FLUID FLOW, AND THUS SERVING TO INDICATE SAME FOR CONTROL PURPOSES. THE FLOW TUBE BALL MEASURING UNIT PREFERABLY TAKES THE FORM OF A DISPOSABLE AND PREFERABLY STERILE INSERT INTO AN INTERVENOUS FEEDING SYSTEM.

Calibrated Flow Rate Sensing and Flow Control Device

A fluid flow rate sensor, which may also be the basis of a valve for a fire suppression system, uses a sensing arm to convey motion of an obturation body or a valve closing member to a sensor system which evaluates the motion and generates a calibrated measure of the flow rate and/or an alarm signal in response if warranted. The obturation body and the valve closing member are capable of both rotation and translational motion, both of which are sensed using the sensing arm. The sensor system is isolated from the fluid within the valve. 1. A flow rate sensor , said flow rate sensor comprising:a housing having an inlet and an outlet, said housing defining a flow path between said inlet and said outlet;a shaft rotatably mounted within said housing;an obturation body positioned within said housing between said inlet and said outlet, said obturation body being mounted on said shaft and movable relatively thereto and relatively to said housing in response to fluid flow between said inlet and said outlet;a sensing arm having a first end fixedly mounted on said shaft and a second end engaging said obturation body;a sensor system adapted to sense rotation of said shaft relatively to said housing.2. The flow rate sensor according to claim 1 , wherein said obturation body comprises a disk oriented transversely to said flow path.3. The flow rate sensor according to claim 2 , wherein said obturation body further comprises at least one lug extending between said disk and said shaft claim 2 , said lug defining a hole receiving said shaft.4. The flow rage sensor according to claim 3 , wherein said hole is sized to permit rotational and translational motion of said disk relatively to said shaft.5. The flow rate sensor according to claim 2 , further comprising a seat surrounding said inlet claim 2 , said obturation body being engageable with said seat.6. The flow rate sensor according to claim 5 , further comprising a spring acting between said obturation body and said housing for ...

双向振荡射流流量计

本发明公开一种双向流量计，包括：第一射流振荡器装置，设置用于计量在第一方向的流体的流量；以及第二射流振荡器装置，设置用于计量在与第一方向相反的第二方向的流体的流量；并且其中，两个射流振荡器装置在流量计的入口和出口之间串联连接在一起，将被计量的流体能够在入口和出口之间流动。

フルイデイツク流量計

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Method of and set for conditioning fluid medium flow

FIELD: conditioning. SUBSTANCE: invention relates to method of conditioning of fluid medium flow at its passage from first zone with inlet hole into second zone arranged below first zone. According to proposed method medium flow is directed from first zone in longitudinal direction, is passed through increased-size passage area, is fractionated on collision surface transverse relative to longitudinal direction of flow, fractionated flow is directed, without reducing its velocity, symmetrically to longitudinal direction of flow through preset length from point of fractionation to second zone, then fractionated flow is accelerated at a certain section of above-indicated length and is mixed to obtain conditioned fluid medium flow in second zone. Set has inlet and outlet holes, chamber communicating with inlet hole, means for directing fractionated flow to outlet hole and flow mixing zone. Longitudinal size of collision surface is equal to size of inlet hole. Device for determining volumetric amount of medium in flow has metering unit and flow conditioning device made in form described above. Metering unit is installed in line with device. EFFECT: possibility of conditioning of fluid medium flow at its passage from first zone into second zone providing, at low head losses, characteristics of flow at second zone inlet which do not depend on characteristics of flow in first zone. 33 cl, 12 dwg СОСУтЯсС ПЧ сэ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК? ВИ” 2154 202 ^^ ©С2 Е 15 С 1/22, С ОЛЕ 1/32 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 97114952/06, 30.01.1996 (24) Дата начала действия патента: 30.01.1996 (30) Приоритет: 06.02.1995 ЕК 9501425 (46) Дата публикации: 10.08.2000 (56) Ссылки: ЕК 2690717 АЛ, 05.11.1993. ЕР 0503462 А, 16.09.1992. ЗЧ 1081421 А, 23.03.1984. 5Ц 1155856 А, 15.05.1985. $4 1432287 А, 23.10.1988. СВ 1453587 А, 27.10.1967. ($ 53631704 А, 15.11.1994. Ц$ 3951171 АЛ, 20.04.1976. ОЕ 2232014 А, 15.03.1973 ...

Jet flowmeter

Изобретение относитс  к измерительной технике и позвол ет уменьшить погрешность измерени  расхода за счет устранени  вли ни  неравномерности эпюры скоростей потока на входе . Канал подвода расходомера вьтол-нен из двух участков, расположенных в плоскости, перпендикул рной плоскости струйного автогенератора. Ось. первого участка, параллельна  плоскости автогенератора, смещена относительно нее на величину, большую радиуса этого участка. Наклон оси второго участка под углом 30-60° к первому участку преп тствует образованию циркул ционной зоны в канале 20 питани  и уменьшает потери давлени  на входе в расходомер. Под воздействием распростран ющейс  по каналу 13 обратной св зи волны повьшени  давлени  в рабочую камеру 4 из сопла 3 вытекает стру  управлени , отклон юща  основную струю. В каналах обратной св зи возбуждаютс  колебани  Л давлени , частота которых пропорциональна расходу через входное сопло 3. 2 ил. ГО 12. tc Ob Я2 со ел ел 1 The invention relates to a measurement technique and reduces the measurement error of the flow rate by eliminating the influence of the irregularity of the flow velocity diagram at the inlet. The channel for supplying the flow meter is out of two sections located in a plane perpendicular to the plane of the jet oscillator. Axis. the first section parallel to the plane of the autogenerator is offset relative to it by an amount greater than the radius of this section. The slope of the axis of the second section is at an angle of 30-60 °. to the first section prevents the formation of a circulation zone in the feed channel 20 and reduces pressure losses at the inlet to the flow meter. Under the influence of the propagating pressure propagating along channel 13, the pressure wave is applied to the working chamber 4 from the nozzle 3 a control jet is ejected which deflects the main jet. In the feedback channels, oscillations of L are excited, the frequency of which is proportional to the flow through the inlet nozzle 3. 2 Il. GO ...

Jet frequency flowmeter

Изобретение относитс  к измерительной техники и направлено на расширение диапазона измерени  расхода. При подаче контролируемой среды во входной патрубок 2 он проходит между первым коническим телом обтекани  4 и корпусом 1, формируетс  в кольцевую струю в кольцевом сопле питани  7, поступает в кольцевой диффузор 14 и выходит через выходной патрубок 3. Кольцева  стру  в диффузоре 14 отклон етс  от первоначального направлени  за счет эффекта Коанда и эжекции кольцевой струей жидкости из дополнительного канала управлени  13, так как выход из кольцевого сопла питани  7 в диффузор 14 выполнен с внезапным расширением. Часть кольцевой струи попадает в дополнительный приемный канал 9, в канал обратной св зи 11 и через канал управлени  13 воздействует на кольцевую струю, котора  преобретает форму расход щегос  конуса. Часть струи поступает в приемный кольцевой канал 8, в канал обратной св зи 10 и через кольцевой канал управлени  воздействует на кольцевую струю, отбрасыва  ее к телу обтекани  5. Далее процесс повтор етс . 1 ил. The invention relates to measurement technology and is aimed at expanding the flow measurement range. When a controlled medium is fed into the inlet 2, it passes between the first conical body of wrap 4 and the housing 1, forms into an annular jet in the annular feed nozzle 7, enters the annular diffuser 14 and exits through the outlet nipple 3. The annular stream in the diffuser 14 deviates from the initial direction due to the Coanda effect and the ejection of an annular stream of liquid from the additional control channel 13, since the outlet from the annular nozzle feed 7 to the diffuser 14 is made with a sudden expansion. Part of the annular jet enters the additional receiving channel 9, into the feedback channel 11 and through the control channel 13 acts on the annular jet, which acquires the shape of a diverging cone. A part of the jet enters the receiving annular channel 8, enters the feedback channel 10, and through the annular control channel ...

A compensation method for measurement of a fluidic oscillation type flow meter

PURPOSE: A measurement calibrating device, of a fluid vibration mode mass flowmeter, and a method thereof are provided to correct the coherency of measured values due to the mechanical properties of a device which is manufactured using a fluid vibration mode. CONSTITUTION: A measurement calibrating device, of a fluid vibration mode mass flow meter comprises a fluid feeding device(100), a fluid vibrator(200), an electronic valve(300), a standards tank(400) and a computer device(500). The fluid feeding device supplies the fluid through the pipe. When the fluid, provided from the fluid feeding device, passes through the fluid vibrator, the fluid vibrator generates a fixed oscillation frequency. The electronic valve controls the passing amount and cut-off of the fluid passing through the fluid feeding device.

배관용폐색검지장치

유체가 흐르고 있는 파이프의 상태를 계속해서 검사하는 배관용 폐색검지장치는, 폐색이 발생할때 즉시 조작자에게 그 발생을 경고한다. 이 장치는, 복수개의 용기와, 이 용기를 상호연결하는 파이프와 파이프에 설치된 진동센서와, 진동센서로부터의 출력신호에 의거하여 파이프내의 폐색의 발생을 검출하는 검출수단을 구비하고 있다.

Meter

A fluidic oscillator liquid flow meter comprising a body (2) having an inlet portion (3) to receive a flow of liquid to be measured, an outlet portion (4), a main channel (5) defining a flow path which includes feedback means (6,7) to induce oscillations in the flowing fluid, the oscillations being detected by detector means (11). The detector means (11) comprises magnetic field generating means (14,15) to apply a magnetic field across the flow path and at least one pair of sensing electrodes (16,17,18) to detect the resulting e.m.f, wherein the detector means (11) also includes driving signal means (25) which applies an alternating driving signal to the sensing electrodes (16,17).

Jet-type flowmeter

СТРУЙНЫЙ РАСХОДОМЕР, состо щий из струйного генератора колебаний, содержащего входное сопло, рабочую камеру, установленный напротив сопла разделитель, два выходных канала,, расположенных по разные стороны рабочей камеры, а также две симметричные цепи обратной св зи, кажда  из которых включает входную часть, расположенную в зоне разделител , и выходную часть в виде сопла управлени , расположенного у входного сопла перпендикул рно к его оси.и преобразовател  да&лени  в электрический сигнал, св занного со струйным генератором колебаний в точках отбора давлени , от л и ч агю щ и и с   тем,ч то, с целью повышени  точности измерени , одна точка от бора давлени  находитс  в сопле управлени  первой цепи обратной св зи, а друга  - на входе второй цепи обратной (Л св зи. A JET FLOW METER consisting of a jet oscillation generator containing an input nozzle, a working chamber, a separator installed opposite the nozzle, two output channels located on opposite sides of the working chamber, as well as two symmetrical feedback circuits, each of which includes an input part, located in the zone of the separator, and the output part in the form of a control nozzle located at the entrance nozzle perpendicular to its axis. And a converter and ampoule into an electrical signal connected to the jet generator to In order to improve measurement accuracy, one pressure drop point is located in the control nozzle of the first feedback circuit, and the other is at the input of the second feedback circuit ( L connection

Fluidic flowmeter

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

A fluidic oscillator and a flow meter including such an oscillator

유체 발진기(oscillator) 및 그 유체 발진기를 포함하는 유량계는 2차원 분사를 형성하기에 적합한 유체입구(3); 분사경로 상에서 입구(3)와 대향하며, 상기 입구(3)를 통과하는 종방향 대칭면(2)에 대해 대칭이며 그벽에서 만나는 2개의 벽(22, 23)을 포함하는 챔버 형태의 전방부를 지니는 장애물(16); 및 챔버(8)의 벽 사이의 분사의 진동에 관련하여 교대로 전방부분 근처에서 장애물(16)의 각각의 측방 플랭크상의 압력을 증가시키기 위한 수단을 포함한다.

Fluidic flowmeter

A fluidic flowmeter having a discharge nozzle (3) a pair of control nozzles (6a, 6b) and oriented substantially normal to a discharge direction of the discharge nozzle (3), the control nozzles (6a, 6b) facing each other, a pair of return flow passages (7a, 7b), a target (12) for stabilizing switching of fluid flow direction, a flow amount measuring sensor (14), a pair of first partition walls (8a, 8b), and a second partition wall (11) for forming discharge passages (10a, 10b) togetherwith the first partition walls (8a, 8b), with a front face (12a) of the target (12) directed towards the discharge nozzle (3) being positioned between a straight line (x) interconnecting center portions of outer peripheral faces of the first partition walls (8a, 8b) and another straight line (y) interconnecting leading edges of the first partition walls (8a, 8b) at the side of the control nozzles (6a, 6b), the outer peripheral faces of the first partition walls (8a, 8b) being formed to be substantially cylindrical or semicylindrical, and with ends (11d, 11e) of first curved faces (11a, 11b) of the second partition wall (11) being extended at least to a vicinity of a straight line interconnecting between rear ends of the first partition walls (8a, 8b) at the side of the second partition wall (11).

Fluid element of fluidics flow meter

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Direct-flow water heater and method for preventing damage thereto

Негерметичный проточный водонагреватель, сконфигурированный таким образом, чтобы предотвратить его повреждение в случае ошибки при монтаже. Водонагреватель содержит бак для воды с нагревательным элементом и нормально открытую выпускную трубу, где выпускная труба снабжена устройством чувствительным к потоку воды, который содержит: односторонний клапан, который позволяет воде течь из бака к наружному концу выпускной трубы, но блокирует поток воды в обратном направлении, и/или выпускной механизм контроля потока воды, выполненным с возможностью выключения нагревательного элемента при обнаружении в выпускной трубе потока воды в сторону бака или отсутствия потока воды. Также представлен способ предотвращения повреждения проточного водонагревателя. 2 н. и 9 з.п. ф-лы, 9 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 763 810 C1 (51) МПК F24H 1/10 (2006.01) G01F 1/20 (2006.01) H05B 1/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F24H 1/102 (2021.08); G01F 1/20 (2021.08); H05B 1/0202 (2021.08) (21)(22) Заявка: 2021101523, 22.08.2019 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): АТМОР ИНДАСТРИЗ ЛТД. (IL) Дата регистрации: 11.01.2022 Приоритет(ы): (30) Конвенционный приоритет: 23.08.2018 US 62/721.730 (45) Опубликовано: 11.01.2022 Бюл. № 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 23.03.2021 (86) Заявка PCT: 2 7 6 3 8 1 0 R U (87) Публикация заявки PCT: WO 2020/039447 (27.02.2020) Адрес для переписки: 107023, Москва, Большая Семеновская, 49, офис 404, ИННОТЭК, Ковальчук Надежда Станиславовна (54) ПРОТОЧНЫЙ ВОДОНАГРЕВАТЕЛЬ И СПОСОБ ПРЕДОТВРАЩЕНИЯ ЕГО ПОВРЕЖДЕНИЯ (57) Реферат: Негерметичный проточный водонагреватель, наружному концу выпускной трубы, но блокирует сконфигурированный таким образом, чтобы поток воды в обратном направлении, и/или предотвратить его повреждение в случае ошибки выпускной механизм контроля потока воды, при монтаже. Водонагреватель содержит бак ...

Medium flow rate gage

Fluidic flowmeter

一种用作家用水表的振荡射流型流体流量表,在入口处具有调节盘(6),提高了水表的线性。该盘位于长射流成形孔的流入端,位于通向射流成形孔的收敛形入口通道的入口处。该盘可以是有狭缝的盘的形状,具有三个被非流线形的长阻挡区(13)隔开的狭缝(12),狭缝和阻挡区与射流成形孔平行。调节盘在层流和过渡流入液流状态下可有效地使流速曲线平直,并向流动中引入紊流,在射流成形孔处模拟紊流流动状态。

Apparatus and method for detecting flow and measuring flow velocity

THROW CURRENT METER

Fluid vibrating type flowmeter

내용 없음.

Apparatus and method for measuring flow rate using pressure sensor

본 발명은 유량 측정 장치 및 방법에 관한 것으로서, 보다 상세하게는 압력센서에 의한 비접촉 방식으로 측정 오차 없이 유량을 측정할 수 있도록 하는 압력센서를 이용한 유량 측정 장치 및 방법에 관한 것이다. 본 발명에 따른 유량 측정 장치는, 유체가 유입되는 입구와 배출되는 출구 사이에 설치되어 유체의 흐름을 개폐하는 개폐밸브가 구비된 개폐 시스템과; 개폐 시스템의 작동시 변화되는 유체의 압력을 간접적으로 검출하는 압력센서가 구비된 압력 검출부와; 압력 검출부를 통해 검출된 유체의 압력이 입력되는 MCU와; 출구를 통해 토출되는 유량을 MCU로 입력하는 유량 입력부와; 압력센서를 통해 측정된 압력 값을 이용하여 출구로 토출되는 유량 단위당 압력변동비인 K 값을 산출한 후, 산출된 K 값을 토대로 압력에 따른 유량의 변화를 비율적으로 연산하여 유량을 검출하는 유량 검출부를 포함하여 구성된 것을 특징으로 한다. The present invention relates to an apparatus and method for measuring a flow rate, and more particularly, to an apparatus and method for measuring a flow rate using a pressure sensor capable of measuring a flow rate without measurement error in a non-contact manner by a pressure sensor. A flow rate measuring device according to the present invention includes: an opening/closing system provided with an opening/closing valve installed between an inlet through which a fluid is introduced and an outlet through which a fluid is discharged; a pressure detection unit provided with a pressure sensor for indirectly detecting the pressure of the fluid that is changed during the operation of the opening/closing system; an MCU to which the pressure of the fluid detected through the pressure detection unit is input; a flow rate input unit for inputting the flow rate discharged through the outlet to the MCU; A flow rate that detects the flow rate by calculating the change in flow rate according to the pressure based on the calculated K value after calculating the K value, which is the pressure fluctuation ratio per unit of flow rate discharged to the outlet, using the pressure value measured through the pressure sensor It is characterized in that it is configured to include a detection unit.

Patent JPS594647B2

Patent JPS6157565B2

Fluid flow meter

Catalyst flow sensor

A catalyst alarm system for resin/catalyst spray applications, the system having a first flow sensor that monitors whether a catalyst from a manifold is flowing for supply to a spay gun or other applicator at a specified minimum rate; a second flow sensor that detects if the catalyst is flowing out of a bypass conduit of the manifold, which indicates the catalyst is not being mixed with the resin; a third flow sensor that detects if the catalyst is flowing out of an over-pressure conduit of the manifold, which indicates that only a partial amount of the required catalyst is being mixed with the resin; and monitoring circuitry for providing alarm and/or control features based on activation combinations of the three flow sensors.

Patent JPS5196353A

Pressure responsive measuring apparatus

Fluid flowmeter

Generator of vibration of fluid medium and flowmeter incorporating such generator

FIELD: liquid and gas flowmeters. SUBSTANCE: generator forming vibration of jet between 22, 23 of -shaped chamber 8 created in obstacle 16 placed in path of jet has facility for successive increase of pressure by each side of obstacle. Increase of pressure is formed in the vicinity of frontal part of obstacle in agreement with vibration of jet. Mentioned facility includes two main conduits 11, 12 made in walls 22, 23. Conduits are positioned in symmetry relative to longitudinal symmetry plane of generator inclined towards it. Inlets 42, 43 of these conduits are located near points of stop of jet. Flowmeter incorporating above-described generator for measurement of frequency of vibration of jet can use transducers 2, 25 of velocity of flow passing through conduits or pressure transducers 50, 52. EFFECT: generator provides stable vibrations of jet even at low velocities of flow. 16 cl, 9 dwg 07018 0с ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ” 2 087 040 ' 13) Сл С 10К 5/00, СОТЕ 1/20 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 5052017/28, 08.07.1992 (30) Приоритет: 09.07.1991 ЕК 9108596 (46) Дата публикации: 10.08.1997 (56) Ссылки: 1. Патент США М 3589185, кл. С ОТЕ 1/00, 1971. 2. Патент США М 4184636, кл. Е 15 В 21/12, 1980. 3. Патент США М 4843889, кл. С ОТЕ 1/00, 1989. 4. Патент США М 4244230, кп. С ОТР 100, 1981. (71) Заявитель: Шлюмберже Эндюстри (ЕК) (72) Изобретатель: Бао Тюан Хюан[[СМ] (73) Патентообладатель: Шлюмберже Эндюстри (ЕК) (54) ГЕНЕРАТОР КОЛЕБАНИЙ ТЕКУЧЕЙ СРЕДЫ И РАСХОДОМЕР, СОДЕРЖАЩИЙ ТАКОЙ ГЕНЕРАТОР (57) Реферат: Использование: в расходомерах для жидкостей и газов. Сущность: генератор, создающий колебания струи между стенками 22, 23 У-образной камеры 8, образованной в помещенном на пути струи препятствии 16, содержит средство для поочередного увеличения давления у каждой из боковых сторон препятствия. Увеличение давления создается в окрестностях фронтальной части препятствия в ...

Method for determining the flow according to the float principle and corresponding device

Beschrieben und dargestellt ist ein Verfahren zur Messung des Durchflusses eines strömenden Mediums nach dem Schwebekörperprinzip. Die Aufgabe besteht darin, ein Verfahren zur Messung des Durchflusses nach dem Schwebekörperprinzip vorzuschlagen, das sich durch eine Vereinfachung der Ermittlung der Kalibrationsdatensätze auszeichnet. Die Aufgabe ist dadurch gelöst, dass mit mindestens einem Referenzmedium und unter mindestens einer Referenzmessbedingung mindestens ein Satz von Kalibrationsdaten aufgenommen wird. Anschließend wird unter einer sich von der Referenzbedingung unterscheidenden Messbedingung eine vom strömenden Medium abhängige Position eines Schwebekörpers (1) ermittelt. Dabei wird ein Maß für den Durchfluss des Mediums ausgehend von dem Satz von Kalibrationsdaten, von einer Umrechnung des Satzes von Kalibrationsdaten von der Referenzmessbedingung auf die Messbedingung und von der ermittelten Position bestimmt. Weiterhin bezieht sich die Erfindung auf eine Vorrichtung zur Bestimmung des Durchflusses nach dem Schwebekörperprinzip. A method for measuring the flow of a flowing medium according to the float principle is described and illustrated. The task is to propose a method for measuring the flow according to the variable area principle, which is characterized by simplifying the determination of the calibration data records. The object is achieved in that at least one set of calibration data is recorded with at least one reference medium and under at least one reference measurement condition. A position of a float (1) which is dependent on the flowing medium is then determined under a measurement condition which differs from the reference condition. A measure for the flow of the medium is determined on the basis of the set of calibration data, a conversion of the set of calibration data from the reference measurement condition to the measurement condition and from the determined position. Furthermore, the invention relates to a device for determining the ...

Method for determining the flow rate according to the plummet principle and corresponding device

A method and device for determining the flow rate of a flowing medium according to the plummet principle is characterized by a simplified determination of the calibration data sets in that at least one set of calibration data is recorded with at least one reference medium under at least one reference measurement condition. Then, a position of a plummet which is dependent on the flowing medium is determined under a measurement condition which differs from the reference condition. Here, the set of calibration data is converted from the reference measurement condition to the measurement condition, and from a determined position of the plummet, a measure for the flow rate of the medium is then determined.

Device for determining the flow according to the float principle

Vorrichtung zur Bestimmung des Durchflusses eines strömenden Mediums nach dem Schwebekörperprinzip mit mindestens einem Schwebekörper (1) und mindestens einem von dem Medium durchströmbaren Messrohr (2), wobei der Schwebekörper (1) im Messrohr (2) entlang einer Achse (3) bewegbar ist, wobei mindestens eine Speichereinheit (8) zur Speicherung mindestens eines mit mindestens einem Referenzmedium und unter mindestens einer Referenzmessbedingung aufgenommenen Satzes von Kalibrationsdaten vorgesehen ist, wobei eine Primärmesseinrichtung (6) zur Ermittlung der Position des Schwebekörpers (1) unter einer sich von der Referenzmessbedingung unterscheidenden Messbedingung vorgesehen ist, wobei mindestens eine Auswerteeinheit (7) vorgesehen ist und wobei die Auswerteeinheit (7) ausgehend von dem Satz von Kalibrationsdaten aus der unter der Messbedingung ermittelten Position des Schwebekörpers (1) und durch eine Umrechnung des Satzes von Kalibrationsdaten von der Referenzmessbedingung auf die Messbedingung ein Maß für den Durchfluss des Mediums ermittelt, dadurch gekennzeichnet, dass mindestens eine Feder (4) vorgesehen ist, dass der Schwebekörper (1) und die Feder (4) derartig ausgestaltet, aufeinander abgestimmt und relativ zueinander angeordnet sind, dass die Feder (4) mit einer vorgebbaren Federkraft auf den Schwebekörper (1) einwirkt, dass von der Auswerteeinheit (7) der Satz von Kalibrationsdaten umgerechnet wird, indem beachtet wird, dass eine Gewichtskraft durch die Federkraft der Feder (4) ersetzt wird, dass mindestens ein Neigungssensor (9) zur Ermittlung der Neigung der Achse (3), entlang derer sich der Schwebekörper während der Durchflussmessung bewegt, vorgesehen ist, und dass die Auswerteeinheit (7) den ermittelten Neigungswinkel für die Umrechnung der Kalibrationsdaten auf die aktuellen Messbedingungen verwendet. Device for determining the flow rate of a flowing medium according to the float principle with at least one float (1) and at least one measuring tube (2 ...

FLUID FLOW CONDITIONING PROCEDURE AND FLUID FLOW CONDITIONER.

LA INVENCION SE REFIERE A UN PROCEDIMIENTO DE ACONDICIONAMIENTO DE UNA CIRCULACION DE UN FLUIDO DE UNA PRIMERA ZONA HACIA UNA SEGUNDA ZONA SITUADA ANTES DE DICHA PRIMERA ZONA, CONSISTIENDO DICHO PROCEDIMIENTO EN: DIRIGIR DICHA CIRCULACION PROCEDENTE DE LA PRIMERA ZONA EN UNA DIRECCION LONGITUDINAL, SOMETER DICHA CIRCULACION A UN AUMENTO DE SECCION DE PASO, FRACCIONAR DICHA CIRCULACION EN UNA SUPERFICIE LLAMADA DE IMPACTO (22A, 122A) SENSIBLEMENTE TRANSVERSAL A LA DIRECCION LONGITUDINAL DE LA CIRCULACION, CANALIZAR LA CIRCULACION FRACCIONADA SIMETRICAMENTE RESPECTO A LA DIRECCION LONGITUDINAL DE LA CIRCULACION SOBE UNA LONGITUD DETERMINADA, DESDE EL LUGAR DE FRACCIONAMIENTO HASTA LA SEGUNDA ZONA, SIN REDUCIR, ACELERAR DICHA CIRCULACION FRACCIONADA EN AL MENOS UNA PARTE DE DICHA LONGITUD DETERMINADA, MEZCLAR LA CIRCULACION PARA OBTENER UNA CIRCULACION DEL FLUIDO ACONDICIONADO EN LA SEGUNDA ZONA. THE INVENTION REFERS TO A PROCEDURE FOR CONDITIONING A CIRCULATION OF A FLUID FROM A FIRST ZONE TOWARDS A SECOND ZONE BEFORE SUCH A FIRST ZONE, CONSISTING OF SUCH A PROCEDURE IN: DIRECTING SUCH CIRCULATION FROM THE FIRST ZONE IN A DIRECT AREA CIRCULATION TO AN INCREASE OF PASSAGE SECTION, FRACTIONING SUCH CIRCULATION IN A SURFACE CALLED OF IMPACT (22A, 122A) SENSITIVELY TRANSVERSAL TO THE LONGITUDINAL DIRECTION OF THE CIRCULATION DIRECTLY CAUSED BY THE LAYING FRACTIONAL CIRCULATION , FROM THE PLACE OF FRACTIONATION TO THE SECOND ZONE, WITHOUT REDUCING, ACCELERATE SUCH CIRCULATION FRACTIONED IN AT LEAST ONE PART OF SUCH LENGTH DETERMINED, MIX THE CIRCULATION TO OBTAIN A CIRCULATION OF THE CONDITIONED FLUID IN THE SECOND ZONE.

Flow sensing device and hydroelectric pump

本发明提供了一种流量传感装置及水电泵。该流量传感装置，包括：管体10、流量传感器20和增压阀30，管体10具有进液口和出液口，进液口与泵体出水口相连通，至少部分的流量传感器20位于管体10内，增压阀30设置于管体10的管壁上，以使泵体停止作业时，增压阀30打开，以将管体10外与管体10内相连通，以避免管体10内的液体由出液口倒流至进液口。通过在管体上设置增压阀，使得泵体在停止作业时，增压阀打开以使外部大气与管体内相连通，避免泵体产生负压吸引水倒流的现象，提高了流量传感器对管体内液体流量的监测的准确度。

Patent FR2460472B1

METHOD AND DEVICE FOR MEASURING A PARAMETER OF A VARIABLE DENSITY FLUID

REDUCED CONGESTION FLUID COUNTER

METHOD FOR CONDITIONING A FLOW OF A FLUID AND CONDITIONER FOR FLOWING A FLUID

A method for conditioning a fluid flow from a first area to a second area downstream therefrom, wherein the flow from the first area is directed in a longitudinal direction, the cross-section of flow is increased, said flow is split by means of an impact surface (22a, 122a) substantially perpendicularly to the longitudinal flow direction, the split flow is caused to flow symmetrically relative to the longitudinal flow direction over a predetermined distance from the splitting point to the second area without reducing the flow rate, the split flow is accelerated over at least a portion of said predetermined distance, and the flow is mixed to achieve a conditioned fluid flow in the second area.

Fuel control system for gas turbine drives - uses fluidic oscillator and fluidic control throttle

The control system contains a fluidic oscillator, the oscillation frequency of which is a function of the fuel flow ratio through the oscillator. It also has a fluidic control throttle, with a fluidic impedance, controlled by the rate, at which the fuel is fed to one of its control inlets. There is a control to adjust the rate, dependent upon the oscillation frequency of the oscillator, and one or more requirement values of the drive. The oscillator and the throttle are switched in series, so that during operation, all the fuel flowing to the drive passes through them. The oscillator is formed as a bi-stable adhesive unit, with two connected control apertures.

Fluidic oscillator using wall effect - operational mode

Oscillator has main chamber with divergent walls on opposing sides, between which fluid jet is passed. A single inlet and outlet are used, at opposite ends of chamber. A pair of reaction channels lead from orifices on opposite sides near outlet, back to jets on opposite sides near inlet nozzle, and perpendicular to flow direction. Rapid oscillation between walls, and consequent 'scan' of outlet causes oscillatory output. Oscillator may be used for pressure, temp. or flow rate measurement or as gas chromatograph detector, due to its frequency dependence on pressure, temp., flow rate or density parameters.

Flowmeter for low flow rates - uses measuring wheel rotated by fluid from injector nozzles and contg. markers which pass between cam and photocell

A flowmeter comprises two circular cheeks (91,92) of plastic material which form a casing (90) with a chamber (80) housing an annular ring (20) containing injector nozzles (30). This ring forms a central chamber (70) in which a measuring wheel is located and onto which the fluid is injected tangentially. The liquid enters the main chamber via an inlet (93) and is exhausted via an outlet (94). The force exerted on the wheel is proportional to the volumetric flow. The measuring wheel is transparent and carries markers which pass between a lamp (102) and photocell (101). The frequency of the pulses from the photocell indicates the flow rate.

Method and devices for measuring velocities, flow rates, load-bearing force

APPARATUS FOR DETERMINING THE MASS FLOW OR GAS AUTONOMY OF A BOTTLE OF GAS, IN PARTICULAR OXYGEN MEDICAL

L'invention concerne un appareil (30) pour déterminer le débit massique (Qm) d'un gaz de composition connue, tel de l'oxygène, comprenant un débitmètre à oscillation fluidique (33) permettant de déterminer au moins une valeur de fréquence d'oscillation d'un tourbillon oscillant d'un gaz traversant ledit débitmètre à oscillation fluidique ; un capteur de pression (32) permettant de mesurer au moins une valeur de pression du gaz ; un capteur de température (31) permettant de mesurer au moins une valeur de température du gaz ; et des moyens de traitement de données (35) coopérant avec le débitmètre à oscillation fluidique (33). Le capteur de pression (32) et le capteur de température (31), lesdits moyens de traitement de données (35) sont configurés pour : i) déterminer un débit volumique (Qv) de gaz à partir de ladite au moins une fréquence d'oscillation de pression dudit tourbillon oscillant de gaz, de la pression de gaz mesurée par le capteur de pression (32) et de la température du gaz mesurée par le capteur de température (31), et ii) déterminer un débit massique de gaz (Qm) à partir du débit volumique de gaz (Qv) et de ladite au moins une valeur de température délivrée par le capteur de température (31). Le débit massique de gaz (Qm) peut ensuite servir à déterminer une durée d'autonomie (A) en gaz du récipient contenant le gaz considéré. Installation d'oxygénothérapie comprenant un réservoir de gaz (41), typiquement une bouteille d'oxygène, et un tel appareil (30). An apparatus (30) for determining the mass flow (Qm) of a gas of known composition, such as oxygen, comprising a fluidic oscillation flowmeter (33) for determining at least one frequency value of oscillation of an oscillatory vortex of a gas passing through said fluidic oscillation flowmeter; a pressure sensor (32) for measuring at least one pressure value of the gas; a temperature sensor (31) for measuring at least one temperature value of the gas; and data ...

MASS FLOW DETECTOR OF A FLUID

Détecteur de débit massique d'un fluide à turbine contrainte. Détecteur dans lequel les aubes de rotor de turbine communiquent une variation de moment angulaire au fluide lorsqu'il les traverse et des signaux sont engendrés correspondant aux forces de réaction résultantes, ces signaux étant combinés avec des signaux correspondant à la température et à la pression en aval du fluide pour donner les signaux de sortie de débit massique; certaines configurations de support de rotor comprennent un dispositif de contrainte à flexion ayant des âmes radiales pouvant servir aussi d'ailettes de stator et fixées au moyeu de turbine; les forces de réaction sont détectées en mesurant le couple de réaction imposé au rotor de turbine et ledit dispositif procure un support rigide pour les forces axiales et radiales tandis qu'il est complaisant pour le couple. Détecteur applicable à la détection du débit d'air dans les systèmes électroniques de commande d'alimentation en combustible pour moteurs à combustion interne.

Fluidic flowmeter e.g. for pilot burner

The assembly comprises a combination of an upstream fluidic element and a downstream fluidic element. One of the fluidic elements includes a jet nozzle having a smaller opening area than a jet nozzle of the other. The flowmeter further comprises a bypass passage disposed parallel to the former fluidic element and including a valve, preferably a diaphragm type governor valve. The governor valve includes a main valve member and an auxiliary valve member adapted to open by a fluid pressure upstream when the main valve member is in a closed position. Each of the fluidic elements has a sensor disposed in one of return passages to detect flow rate variations. A flow rate indicating device is provided to derive flow rates from signals received from the sensors and indicate the flow rates.

FLOW METER

a. Débitmètre. b. Il comprend un rotor il pouvant tourner dans une chambre 12 autour d'un axe vertical 13 donné de la chambre 12 sous l'action du courant de fluide qui pénètre dans la chambre 12. Le fluide entre dans la chambre 12 au voisinage des pôles 14 de l'axe 13 en deux courants distincts et quitte la chambre dans la région 15 équatoriale. c. Industrie chimique. at. Flow meter. b. It comprises a rotor 11 capable of rotating in a chamber 12 around a vertical axis 13 given to the chamber 12 under the action of the fluid stream which enters the chamber 12. The fluid enters the chamber 12 in the vicinity of the poles 14 from axis 13 into two separate streams and leaves the chamber in the equatorial region. vs. Chemical industry.

APPARATUS FOR MEASURING THE FLOW RATE OF A BULK PRODUCT.

APPARATUS FOR MEASURING FLOW RATE OF A BULK PRODUCT.

L'APPAREIL POUR MESURER LE DEBIT D'ECOULEMENT D'UN PRODUIT EN VRAC COMPREND UN ESPACE DE MESURE14 SEPARE DE L'ESPACE D'ALIMENTATION18 PAR UNE PAROI DE SEPARATION50, UNE PLAQUE D'IMPACT DISPOSEE DANS L'ESPACE D'ALIMENTATION EN BIAIS DANS LA TRAJECTOIRE DE CHUTE DU PRODUIT EN VRAC A MESURER ET UN SUPPORT DE PLAQUE D'IMPACT DEPLACABLE HORIZONTALEMENT ET PRESENTANT UN ORGANE DE LIAISON EN FORME DE TIGE46 QUI DEPASSE A TRAVERS UNE OUVERTURE48 DE LA PAROI DE SEPARATION50. LA SECTION DE L'ORGANE DE LIAISON EN FORME DE TIGE46 QUI DEPASSE A TRAVERS L'OUVERTURE48 PRATIQUEE DANS LA PAROI DE SEPARATION50 EST ENTOUREE, SUR UNE PARTIE DE SA LONGUEUR, PAR UN TUBE RIGIDE62 DONT LE DIAMETRE EST SUPERIEUR AU DIAMETRE DE L'ORGANE DE LIAISON EN FORME DE TIGE46, L'UNE DES EXTREMITES DE CE TUBE62 EST RELIEE, DE FACON ETANCHE A LA POUSSIERE, A LA PAROI DE SEPARATION50 PAR UNE PREMIERE MEMBRANE FLEXIBLE64 ET L'AUTRE EXTREMITE DU TUBE62 EST RELIEE, DE FACON ETANCHE A LA POUSSIERE, A L'ORGANE DE LIAISON EN FORME DE TIGE46 PAR UNE DEUXIEME MEMBRANE FLEXIBLE66. UTILISATION POUR EVITER LES ERREURS DE MESURE DUES A LA POUSSIERE. THE APPARATUS FOR MEASURING THE FLOW RATE OF A BULK PRODUCT INCLUDES A MEASURING SPACE14 SEPARATED FROM THE SUPPLY SPACE18 BY A SEPARATION WALL50, AN IMPACT PLATE PROVIDED IN THE BIAS SUPPLY SPACE IN THE TRACK OF THE DROP OF THE BULK PRODUCT TO BE MEASURED AND A HORIZONTALLY MOVABLE IMPACT PLATE SUPPORT AND PRESENTING A ROD-SHAPED LINKAGE46 WHICH EXCEEDS THROUGH AN OPENING48 OF THE SEPARATION WALL50. THE SECTION OF THE ROD-SHAPED CONNECTING ORGAN46 WHICH EXCEEDS THROUGH THE OPENING48 IN THE SEPARATION WALL50 IS SURROUNDED, OVER PART OF ITS LENGTH, BY A RIGID TUBE62 THE DIAMETER OF WHICH IS GREATER THAN THE DIAMETER OF THE ORGANE BY CONNECTION IN THE FORM OF A ROD46, ONE OF THE ENDS OF THIS TUBE62 IS CONNECTED, IN A DUST-TIGHT WAY, TO THE SEPARATION WALL50 BY A FIRST FLEXIBLE MEMBRANE64 AND THE OTHER END OF THE ...

METHOD FOR MEASURING THE OSCILLATION FREQUENCY OF A FLUID JET IN A FLUID OSCILLATOR

Elastic device for transforming dynamic effects into variations in electric current

Device for measuring the flow rate of a liquid flowing in a pipe

Device for measuring the flow rate of a liquid flowing in a pipe, of which at least one part 2 is curved and constitutes a U-shaped bend, comprising a differential pressure sensor 5 adapted to measure the pressure difference of the liquid between two points of the curved part 2 of the pipe whose radii of curvature are different, a device 61, 62 for processing the signal emitted by the differential pressure sensor 5 and a flow rate indicator 171, to which the signals coming from the signal processing device 61, 62 are applied. The device furthermore comprises means for linearising the flow rate indicator as a function of the temperature of the fluid.

Monitor for quantity of flowing medium - delivers signal when quantity exceeds or does not reach specified value

The monitor has a measurement vessel (1) with an inlet (2) and an outlet (3) for the monitored medium, and a level monitoring device (6-9). When the medium level falls to a fixed lower position (10), or rises to a specified upper position (11), it delivers a signal. valve (5) in the outlet (3) is opened when the higher level (11) is reached, and closed when the lower level (10) is reached. An electronic device controlled by the level signals measures the time between teh valve (5) closing and reaching the upper level, and compares it with a specified nominal value.

FLUID OSCILLATOR, PART FOR INCORPORATING INTO A FLUID OSCILLATOR, AND METHOD FOR MANUFACTURING SUCH A FLUID OSCILLATOR

Flowmeter with fluidic oscillator.

A flow meter having a fluidic oscillator in which a two-dimensional fluid jet oscillating transversely relative to a plane of symmetry (P) impinges on the back of a cavity (24). The flow rate of said jet is subtracted by electronic means (42, 44) from a signal (S) which corresponds to a differential pressure resulting from the difference between a pressure sensed at a point (P3) on the axis of intersection of the plane of symmetry with the back of the cavity (24), and a differential pressure resulting from pressure sensing at two points (P1, P2) symmetrically located on either side of the plane of symmetry.

Medium detector for flow rate detection - uses an oscillator and an electro anemometer reacting to pulsating flow

The medium flow rate detector comprises a fluidic oscillator with a bistable wall static friction effect arrangement with two outlet channels joined to one another. The oscillating frequency of the oscillator is a function of the flow through the oscillator. An electro-ohmic anemometer forms part of the oscillator in which a pulsating flow takes place, the output signal from the anemometer has a frequency proportional to the flow rate. An anemometer can be mounted in one or in both channels. Each channel has a zone in which a filter element is mounted with relief throttle outlets (20, 22). Electrical conductors (25, 26) lead into the control and the amplifier circuits (27, 29).

MEASURING DEVICE AND METHOD FOR DETECTING FLOWS OF FLUIDS AND FOR MEASURING FLOW SPEEDS

Flow meter

FLUID OSCILLATOR WITH IMPROVED PROFILE OBSTACLE

The invention relates to a fluidic oscillator (20) which is symmetrical with respective to a longitudinal symmetry plane (P), comprising a fluid inlet (22) intended to form a bidimensional fluid jet which oscillates transversally with respective to the symmetry plane (P), an obstacle (28) wherein is arranged a cavity (32) which faces said fluid inlet (22) and which is scavenged by the oscillation jet, characterized in that the obstacle (28) has a front wall (30) which has two so-called front surfaces (34, 36) substantially planar and framing the cavity (32), the plane of each surface being substantially perpendicular to the symmetry plane (P), said cavity (32) being defined by a surface which is substantially parallel to said plane (P) at the points (A1, A2) where said surface joins each of said front surfaces (34, 36), the obstacle (28) also having two side walls (38, 40) of which said side surfaces are substantially parallel to the symmetry plane (P) at the points (B1, B2) where each of them joins the corresponding front surface.

Method and apparatus for measuring the velocity of a fluid stream

Device for measuring the quantity of liquid suspension, in particular dredging sludge, passing through a pipeline

FLUID OSCILLATOR FLOWMETER.

Fluid vibrating type flowmeter

A fluid vibrating type flowmeter has a nozzle disposed in a flow passage and defining a nozzle outlet plane extending perpendicular to the flow passage, an enlarged passage disposed downstream of the nozzle and including divergent inner wall surfaces symmetric about an axis of the nozzle, a target disposed centrally of the enlarged passage for obstructing straight movement of streams jetting out of the nozzle, and a constricted passage disposed downstream of the enlarged passage and having a smaller passage width than a rear end of the enlarged passage. Each of the divergent inner wall surfaces includes a main arcuate section continuous from the nozzle outlet plane, a straight diverging wall section continuous from the main arcuate section, and an auxiliary arcuate section continuous at an upstream end thereof from the straight diverging wall section and at a downstream end thereof with the constricted passage. The straight diverging wall section is formed as a common tangent of the main arcuate section and auxiliary arcuate section. The main arcuate section has a radius R and the auxiliary arcuate section has a radius r, these radii being in relations expressed by r/R = 0.5 L/R = 1.5. and x/R = (3)/2, where L is a distance between the nozzle outlet plane and the center of the auxiliary arcuate section, and x is a distance between the center of the auxiliary arcuate section and a passage axis.

Method for measuring fluid flow velocities

OSCILLATING JET COUNTER FOR FLUIDS

COMPTEUR COMPORTANT UN ELEMENT RAPPORTE DANS LEQUEL SONT MENAGES DES ESPACES ET CANAUX FORMANT UN CIRCUIT D'ECOULEMENT DANS LEQUEL EST PRODUIT UN JET OSCILLANT DE FLUIDE DONT LA FREQUENCE EST SENSIBLEMENT PROPORTIONNELLE A LA VITESSE D'ECOULEMENT DU FLUIDE ET EST MESUREE PAR UN DISPOSITIF DE MESURE POUR LA DETERMINATION DU DEBIT DU FLUIDE DANS UN CALCULATEUR. L'ELEMENT RAPPORTE EST FORME D'UNE BOITE EN DEUX PARTIES 6, 7 QUI EST FERMEE A L'EXCEPTION DES ORIFICES D'ENTREE ET DE SORTIE 3, 4 ET QUI EST ENTOUREE DE TOUTES PARTS D'UNE ENVELOPPE 1, 2 ETANCHE SOUS PRESSION QUI PORTE LES DEUX TUBULURES DE RACCORDEMENT 3, 4. METER INCLUDING A REPORTED ELEMENT IN WHICH ARE MANUFACTURED SPACES AND CHANNELS FORMING A FLOW CIRCUIT IN WHICH IS PRODUCED AN OSCILLATING JET OF FLUID THE FREQUENCY OF WHICH IS SENSITIVELY PROPORTIONAL TO THE FLUID FLOW SPEED AND IS MEASURED BY A MEASURING DEVICE FOR DETERMINATION OF FLUID FLOW IN A CALCULATOR. THE REPORTED ELEMENT IS IN THE FORM OF A BOX IN TWO PARTS 6, 7 WHICH IS CLOSED WITH THE EXCEPTION OF THE INPUT AND OUTPUT HOLES 3, 4 AND WHICH IS SURROUNDED IN ALL PARTS BY AN ENCLOSURE 1, 2 WATERPROOF UNDER PRESSURE CARRYING THE TWO CONNECTION TUBES 3, 4.

FLUIDIC OSCILLATION FLOW METER WITH IMPROVED FLOW STABILIZER

L'invention porte sur un débitmètre à oscillation fluidique comprenant, agencés en série, une chambre de stabilisation (1) et une chambre d'oscillation (2) reliées fluidiquement l'une à l'autre par un canal de liaison (3), la chambre de stabilisation (1) comprenant un élément stabilisateur de flux (11) et la chambre d'oscillation (2) comprenant un élément à reflux (21) comprenant une partie de forme semi-cylindrique (22). L'élément stabilisateur de flux (11) comprend un corps d'élément (10) de section oblongue et présentant un premier et un deuxième plan de symétrie (P1, P2) perpendiculaires entre eux, ledit premier plan de symétrie (P1) étant selon la longueur (L) et ledit second plan de symétrie (P2) étant selon la largeur (1) dudit corps d'élément (10), et ledit corps d'élément (10) comprenant, en outre, deux extrémités (11a, 11b) de forme effilée (11c) et symétriques l'une de l'autre par rapport au deuxième plan de symétrie (P2). The invention relates to a fluidic oscillation flowmeter comprising, arranged in series, a stabilization chamber (1) and an oscillation chamber (2) fluidly connected to one another via a connecting channel (3), the stabilization chamber (1) comprising a flow stabilizing element (11) and the oscillation chamber (2) comprising a reflux element (21) comprising a semi-cylindrical portion (22). The flux stabilizing element (11) comprises an element body (10) of oblong section and having a first and a second plane of symmetry (P1, P2) perpendicular to each other, said first plane of symmetry (P1) being according to the length (L) and said second plane of symmetry (P2) being according to the width (1) of said element body (10), and said element body (10) further comprising two ends (11a, 11b ) of tapered shape (11c) and symmetrical to each other with respect to the second plane of symmetry (P2).

FLOW METER SUITABLE FOR EXCEPTIONALLY LOW FLOWS, WITH FLOW TUBE CONTAINING A FERROMAGNETIC BALL

Gas flow meter

MEASURING APPARATUS FOR DETERMINING THE FLOW RATE OF A FLOWING MEDIUM

Improved method and device for measuring flow rates

FLUIDIC FLOWMETER.

L'invention concerne un débitmètre fluidique stabilisant le débit d'écoulement du fluide à mesurer. Il comporte une toile métallique (1) montée sur le côté d'amont d'une buse (3) destinée à éjecter le fluide de l'élément fluidique du débitmètre. La toile métallique stabilise l'écoulement dont le débit est à mesurer. Domaine d'application: compteurs à gaz, etc. The invention relates to a fluid flow meter stabilizing the flow rate of the fluid to be measured. It comprises a wire mesh (1) mounted on the upstream side of a nozzle (3) intended to eject the fluid from the fluidic element of the flowmeter. The wire mesh stabilizes the flow whose flow is to be measured. Area of application: gas meters, etc.

MEASURING DEVICE AND METHOD FOR DETECTING FLUID FLOWS AND FOR MEASURING FLOW SPEEDS

L'INVENTION CONCERNE UN DISPOSITIF ET UN PROCEDE DE MESURE POUR DETECTER DES ECOULEMENTS DE FLUIDES ET POUR MESURER DES VITESSES D'ECOULEMENT. DANS CE DISPOSITIF CONTENANT UN SYSTEME DE RETENUE PLACE DANS UN CARTER 7 AINSI QUE DES GENERATEURS DE SIGNAUX 14, IL EST PREVU UN ESPACE INTERIEUR 8 SITUE DANS LE CARTER ET FERME EN TOTALITE OU EN PARTIE POUR LE FLUIDE EN ECOULEMENT ET DES ORGANES DE RETENUE 2 FIXES SUR LE SYSTEME DE RETENUE, A L'EXTERIEUR DE L'ESPACE 8 ET D'UNE MANIERE EQUILIBREE AUTOUR DE L'AXE 9 DE LA DIRECTION D'ECOULEMENT ET DU SYSTEME DE RETENUE, CE DERNIER POSSEDANT UNE SUSPENSION ELASTIQUE 3 ETOU ETANT RELIE A UNE UNITE COMPENSANT LA FORCE AGISSANT SUR LES ORGANES DE RETENUE 2. APPLICATION NOTAMMENT AUX ANEMOMETRES. THE INVENTION RELATES TO A MEASURING DEVICE AND METHOD FOR DETECTION OF FLUID FLOWS AND FOR MEASURING FLOW SPEEDS. IN THIS DEVICE CONTAINING A RESTRAINT SYSTEM PLACED IN A CRANKCASE 7 AS WELL AS SIGNAL GENERATORS 14, AN INTERIOR SPACE 8 IS PROVIDED IN THE CRANKCASE AND FULLY OR PARTLY CLOSED FOR THE FLUID FLOWING AND OF THE RETAINERS 2 FIXED ON THE RESTRAINT SYSTEM, OUTSIDE OF SPACE 8 AND IN A BALANCED MANNER AROUND THE AXIS 9 OF THE FLOW DIRECTION AND THE RESTRAINT SYSTEM, THE LATTER HAVING AN ELASTIC SUSPENSION 3 AND BEING CONNECTED HAS A UNIT COMPENSATING THE FORCE ACTING ON THE RETAINING ORGANS 2. APPLICATION IN PARTICULAR TO ANEMOMETERS.