СПОСОБ ОПРЕДЕЛЕНИЯ СКОРОСТИ РАСПРОСТРАНЕНИЯ ГРАВИТАЦИОННЫХ ВОЛН

Изобретение относится к области гравитационно-волновой физики и может быть использовано для определения скорости распространения гравитационных волн (ГВ). Согласно изобретению скорость ГВ определяется по результатам измерений фазы сигнала, регистрируемого от двойного релятивистского астрофизического объекта, излучающего низкочастотную ГВ стабильной частоты. Особенность изобретения состоит в том, что используют только один детектор ГВ, размещенный на Земле. Благодаря орбитальному движению Земли вокруг Солнца, изменение расстояния между Землей и астрофизическим источником ГВ имеет периодическую составляющую, которая учитывается при измерении фаз гравитационного сигнала φ1 и φ2 в фиксированные моменты времени t1 и t2. Это позволяет найти дополнительное (по отношению к случаю «неподвижного» в барицентрической системе координат детектора ГВ) изменение фазы гравитационного сигнала, обусловленное изменением расстояния от Земли до астрофизического источника ГВ на величину ΔD за время t2-t1. По ...

УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ ГРАВИТАЦИОННОЙ ПОСТОЯННОЙ

Полезная модель относится к области метрологии и может быть использована при уточнении значения фундаментальной физической константы - гравитационной постоянной. Техническая задача заключается в уменьшении погрешности измерений за счет устранения дестабилизирующих факторов, связанных с присутствием оператора в процессе измерений, и проведения длительных непрерывных измерений. Устройство для измерения гравитационной постоянной содержит помещенные в термостат и установленные на общем основании вакуумированные крутильные весы, систему измерения периода и амплитуды колебаний, оптически связанную с зеркалом, укрепленным на рабочем теле весов, состоящим из коромысла и двух сосредоточенных масс на его концах и подвешенном на металлической упругой нити, шаровую притягивающую массу, размещенную на линии равновесия рабочего тела на одном из установочных отверстий неподвижной линейки узла фиксации шаровой массы на различных расстояниях от грузов коромысла. При этом узлы перемещения и фиксации обеспечивают ...

СПОСОБ ОПРЕДЕЛЕНИЯ СИЛЫ ТЯЖЕСТИ НА МОРСКОМ ОПОРНОМ ПУНКТЕ

Использование: морские гравиметрические измерения. Сущность: при движении судна по прямолинейным галсам производят измерения силы тяжести набортными гравиметрами. Галсы прокладывают через опорный пункт таким образом, что точки измерений располагаются как на опорном пункте, так и с обеих сторон от него. Измерения силы тяжести проводят не менее, чем по восьми галсам, образующим четыре пары галсов. Каждую пару галсов проходят на прямых и обратных курсах со сдвигом между парами 40 - 50°. Это позволяет минимизировать систематические погрешности, связанные с воздействием возмущающих ускорений на гравиметры при движении судна. Каждая пара галсов должна пересекать площадь, которая оконтуривает опорный пункт, называемую опорной зоной. Размеры опорной зоны, охватывающей опорный пункт, определяются радиусом зоны и горизонтальным градиентом силы тяжести: их произведение должно быть вдвое меньше погрешности опорного значения (mon≥ 2GR3), что позволяет пренебречь погрешностью, связанной с отклонением ...

УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ ГРАВИТАЦИОННОЙ ПОСТОЯННОЙ

Полезная модель относится к области метрологии и может быть использована при уточнении значения фундаментальной физической константы - гравитационной постоянной. Техническая задача заключается в устранении дестабилизирующих факторов, связанных с присутствием оператора, уменьшении погрешности за счет увеличения разности периодов колебаний весов при фиксации притягивающих тел на двух позициях, а также для проведения длительных непрерывных измерений. Устройство для измерения гравитационной постоянной содержит - помещенные в термостат и установленные на общем основании вакуумированные крутильные весы, систему измерения периода и амплитуды колебаний, оптически связанную с зеркалом, укрепленным на рабочем теле весов, состоящим из коромысла и двух сосредоточенных масс на его концах и подвешенном на металлической упругой нити, шаровую притягивающую массу, размещенную на линии равновесия рабочего тела на одном из установочных отверстий неподвижной линейки узла фиксации шаровой массы на различных ...

МОБИЛЬНЫЙ АБСОЛЮТНЫЙ ГРАВИМЕТР ДЛЯ ГЕОЛОГОРАЗВЕДОЧНЫХ РАБОТ, ГЕОФИЗИЧЕСКИХ ИССЛЕДОВАНИЙ И ОПЕРАТИВНОГО ВЫЯВЛЕНИЯ ОЧАГОВ ЗЕМЛЕТРЯСЕНИЙ (ВАРИАНТЫ)

... 1. Мобильный абсолютный гравиметр для поиска полезных ископаемых аномальной плотности, оперативного выявления очагов готовящихся землетрясений, выявления ослабленных грунтов, карстов и зон повышенной трещиноватости при проектно-изыскательских работах в строительстве и горнодобывающей промышленности, включающий в себя корпус, блок питания, встроенный в корпус компьютер с монитором для визуализации и анализа результатов измерений, чувствительный элемент, отличающийся тем, что гравиметр содержит электромотор, на вертикально расположенном валу которого закреплена горизонтальная платформа с двумя соосными, противоположно направленными лазерными микрометрами, при этом чувствительный элемент выполнен в виде двух вертикальных маятников, закрепленных над платформой жесткими подвесами равной длины на противоположных концах общего коромысла, закрепленного на вертикальном валу электромотора, и имеющих в качестве грузов лазерные отражатели, причем излучатели лазерных микрометров расположены в центре ...

СПОСОБ ПОИСКОВ ЗОЛОТОНОСНЫХ РОССЫПЕЙ

Использование: выявление на исследуемой золотоносной территории россыпей золота, приуроченных к сети погребенных палеорусел. Сущность: по локальным минимумам аномальных значений ускорения силы тяжести, обнаруженных в результате проведения профильной гравиметрической съемки, определяют области слияния погребенных палеорусел, в которых отбирают пробы, анализируют их на содержание рудных элементов и отождествляют плановое положение золотоносных россыпей с наличием аномальных концентраций рудных элементов.

Способ разработки солевого месторождения с получением металлов платиновой группы из древней прибрежно-морской зоны

Изобретение относится к горному делу и может быть использовано при разработке солевого месторождения с получением металлов платиновой группы из древней прибрежно-морской зоны. При разработке солевого месторождения устанавливают наличие платины в песчано-глинистых прослоях в соляной толще. Затем определяют положение береговой линии древнего моря, при усыхании которого образовалось солевое месторождение. После чего проводят геологическое картирование и устанавливают положение близлежащих коренных месторождений платины, направление сноса из них обломочного материала. Определяют районы пересечения древних прибрежно-морских зон с областью сноса обломочного материала, содержащего платину. После этого в районах пересечения проводят гравитационную разведку и предварительно устанавливают глубину залегания платины. После чего осуществляют бурение скважин и отбор проб, в которых определяют содержание платины. Затем осуществляют оконтуривание залежей пород с промышленными концентрациями платины и выемку ...

Оптический гравиметр

FIELD: measuring.SUBSTANCE: invention relates to apparatuses for measuring the acceleration of gravity. The apparatus comprises an optical microresonator (1) located at the first end of a movable console (2). The microresonator (1) is coupled with a pumping laser (4) through a connecting element (3) placed on a fixed platform (9). The second end of the console (2) is connected with a console-moving apparatus (7). The connecting element (3) is coupled with a microresonator mode control unit (5) connected to the processing and control unit (8). The processing and control unit (8) is connected with the console-moving apparatus control unit (6) connected with the console-moving apparatus (7).EFFECT: increased range of measurement of the acceleration of gravity, increased accuracy of measurement.7 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 749 844 C1 (51) МПК G01V 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G01V 7/00 (2021.02) (21)(22) Заявка: 2020134162, 16.10.2020 (24) Дата начала отсчета срока действия патента: Дата регистрации: 17.06.2021 (45) Опубликовано: 17.06.2021 Бюл. № 17 2 7 4 9 8 4 4 R U (54) Оптический гравиметр (57) Реферат: Изобретение относится к устройствам для измерения ускорения свободного падения. Сущность: устройство содержит оптический микрорезонатор (1), размещенный на первом конце подвижной консоли (2). Микрорезонатор (1) через соединительный элемент (3), размещенный на неподвижной платформе (9), связан с лазером (4) накачки. Второй конец консоли (2) соединен с устройством (7) перемещения консоли. Соединительный элемент Стр.: 1 (56) Список документов, цитированных в отчете о поиске: US 6668111 B2, 06.11.2003. US 2014060178 A1, 06.03.2014. CN 109814165 A, 28.05.2019. RU 192791 U1, 01.10.2019. C 1 C 1 Адрес для переписки: 141570, Московская обл., Солнечногорский рн, п/о Менделеево, ФГУП "ВНИИФТРИ", Патентный отдел 2 7 4 9 8 4 4 Приоритет(ы): (22) Дата подачи заявки: 16.10. ...

СПОСОБ ПОИСКОВ МЕСТОРОЖДЕНИЙ И ЗАЛЕЖЕЙ НЕФТИ И ГАЗА

... 1. Способ поисков месторождений и залежей нефти и газа, заключающийся в установлении нефтегазоперспективности территории по наличию в земной коре глубинных резервуаров, для чего проводят сейсморазведку МОГТ в глубинной модификации и выделение объемных динамических аномалий, отличающийся тем, что осуществляют прогнозирование и локализацию нефтеподводящих каналов, производят выявление степени активности нефтеподводящего канала, для чего на территории выхода нефтеподводящего канала изучают нестабильность гравитационного поля путем проведения разновременных гравиметрических наблюдений на закрепленных на местности пунктах и определении на каждом из них изменений гравитационного поля во времени, и по наличию участков повышенной нестабильности гравитационного поля во времени судят о современной активности канала, осуществляют бурение поисковой скважины непосредственно на активный нефтеподводящий канал. 2. Способ поисков месторождений и залежей нефти и газа по п.1, отличающийся тем, что прогнозирование ...

ГРАВИМЕТР ГИДРАВЛИЧЕСКИЙ С КОМПЕНСАЦИЕЙ ДРЕЙФА НУЛЯ ПОКАЗАНИЙ

Гравиметр гидравлический, содержащий, прочный термозащитный корпус, закрытый герметичной крышкой, в который помешены имеющие внешние зеркальные поверхности стакан с основанием, обеспечивающим общий газовый объем стакана с корпусом и имеющим наполнительную трубку с вентилем, отличающийся тем, что к основанию снизу по периметру герметично прикреплена гибкая упругая резиновая мембрана, имеющая с ним под действием веса дегазированной непрозрачной рабочей жидкости заполненную ей полость, которая гидравлически соединена через поддерживаемый сверху концами термокорректирующих объем жидкости в полости биметаллических пластин переходный гибкий сильфон с измерительной прозрачной капиллярной трубкой, которая имеет посаженный на нее фотоэлектрический блок цепи регистрации уровня рабочей жидкости в ней, и через тонкий капилляр - с компенсационной емкостью, имеющей свободную поверхность рабочей жидкости в ней, обеспечивающими такое инерционное выравнивание уровня жидкости в измерительном капилляре, которое ...

СПОСОБ НАЗЕМНОЙ ГРАВИРАЗВЕДКИ

Способ наземной гравиразедки относится к геофизическим методам исследований, может быть использован на стадии поисков, разведки, доразведки в процессе эксплуатации месторождений углеводородов. Цель изобретения - обеспечение квазиизотропности результатов гравиразведочных работ и минимизации искажающего влияния рельефа местности. Способ наземной гравиразведки основан на регистрации силы тяжести относительными гравиметрами на квадратной или прямоугольной сети наблюдений, учете изменения их нульпунктов в звене с привлечением наблюдений в секущих звеньях, учете реальной плотности промежуточного слоя, выделении информативных локальных аномалий силы тяжести путем исключения фоновой компоненты. Новизна способа заключается в том, что наблюдения на пунктах съемки производят в двух взаимоортогональных равнопротяжных звеньях гравиметрических рейсов, учет изменения нульпункта гравиметра в звене с привлечением наблюдений в секущих звеньях осуществляют путем аппроксимации нульпункта как функции времени ...

СПОСОБ ОПРЕДЕЛЕНИЯ СКОРОСТИ РАСПРОСТРАНЕНИЯ ГРАВИТАЦИОННЫХ ВОЛН

Способ определения скорости распространения гравитационных волн, основанный на измерении разности фаз гравитационного сигнала от источника излучения, принятого в двух пространственно разнесенных точках, отличающийся тем, что при годовом орбитальном обращении Земли с гравитационно-волновым детектором последовательно в произвольно фиксированные моменты времени tи tизмеряют фазы гравитационного сигнала ϕи ϕот двойных астрофизических объектов, вычисляют непосредственно измеренную разность фаз Δϕ, расчетную разность фаз Δϕ, определяемую в предположении неподвижности Земли относительно центра масс Солнечной системы, и вычисляют скорость распространения гравитационной волны V по формуле,где ω- частота принимаемого гравитационно-волнового сигнала, ΔD - изменение расстояния до источника гравитационно-волнового излучения, обусловленное орбитальным движением Земли, Δϕ=ϕ-ϕ- наблюдемая разность фаз, Δϕ- расчетная разность фаз.

ГРАВИМЕТР ДЛЯ ИЗМЕРЕНИЯ СИЛЫ ТЯЖЕСТИ С ДВИЖУЩИХСЯ НОСИТЕЛЕЙ

Гравиметр для измерения силы тяжести с движущихся носителей, содержащий гиростабилизированную платформу (ГСП) с установленными на ней гироскопом, оси чувствительности которого совпадают с осями платформы, акселерометрами, оси чувствительности которых совпадают с осями платформы, гравиметрическим ЧЭ (ГРЧЭ), ось чувствительности которого перпендикулярна плоскости платформы. Гравиметр содержит также корректирующее устройство, входы которого подключены к выходам акселерометров, а выходы - к входу датчиков момента, и гравиметрический фильтр, вход которого подключен к выходу гравиметрического ЧЭ, и усилители стабилизации, входы которых подключены к выходам датчиков угла гироскопа, а выход - к исполнительным устройствам следящих систем стабилизации. Изобретение направлено на повышение точности калибровки масштабного коэффициента гравиметрического ЧЭ (ГРЧЭ) благодаря обеспечению возможности калибровки ГРЧЭ без его демонтажа, а также определения неперпендикулярности оси чувствительности ГРЧЭ плоскости ...

СПОСОБ МОРСКОЙ ГРАВИМЕТРИЧЕСКОЙ СЪЕМКИ

Способ морской гравиметрической съемки, включающий размещение на подвижном носителе гравиметров, размещение опорных геофизических пунктов, оснащенных измерительной аппаратурой, в районе выполнения съемки, выполнение площадной или профильной съемки путем определения ускорения силы тяжести на движущемся объекте посредством измерения ускорения (α0) неподвижным относительно объекта гравиметром (акселерометром по вертикали), определение широты места φ, путевого угла α, абсолютной скорости VH чувствительной системы гравиметра навигационным средством и вычисление по полученным данным искомого абсолютного значения ускорения силы тяжести (g0), в котором дополнительно определяют угол β между вектором абсолютной скорости чувствительной системы гравиметра и плоскостью горизонта, радиус кривизны ρ траектории движения чувствительной системы, а искомое абсолютное значение ускорения силы тяжести вычисляют по формуле ! ! где ω - угловая скорость вращения Земли, ! дополнительно измеряют вертикальную Vzi ...

ГРАВИМЕТР

... 1. Гравиметр, включающий опорный элемент, переменный конденсатор с горизонтально расположенными неподвижными и размещенным между ними подвижным электродами, отличающийся тем, что он снабжен дополнительными переменными конденсаторами, каждый из которых выполнен в виде вертикально расположенных неподвижных и размещенным между ними подвижным электродами, корпусами, с которыми шарнирно соединены подвижные электроды, и, через диэлектрики, скреплены неподвижные электроды, причем корпуса соединены с опорным элементом посредством шарниров, а электроемкости каждого из пар внутреннего и соответствующих внешних электродов переменных конденсаторов выполнены разными. ! 2. Гравиметр по п.1, отличающийся тем, что шарниры, соединяющие корпуса с опорным элементом, выполнены в виде карданных механизмов. ! 3. Гравиметр по п.1, отличающийся тем, что оси шарниров вертикально расположенных электродов размещены перпендикулярно друг другу. ! 4. Гравиметр по п.1, отличающийся тем, что электроды выполнены из немагнитного ...

Способ измерения гравитационного поля Земли

FIELD: physics.SUBSTANCE: invention relates to geophysics and can be used to study the gravitational field in the World Ocean for navigation and hydrographic support of the forces of the fleet and the national economy. Proposed method involves preliminary measurements of gravity by means of a gravimeter installed on board a shipboard above an abyssal plain and creation of a model of the gravitational field of the Earth by combining the obtained data with data of the global model of the gravitational field of the Earth. Further, displacement speed of zero point of gravimeter and absolute value of measurements is determined. Current gravity measurements are carried out in the investigated area of the World Ocean and a regional model of the Earth's gravitational field is created. Velocities of displacement of zero point of gravimeter and absolute value of measurements by method of linear approximation of set of discrepancies are determined. Performing additional measurements of inertial vertical accelerations. Spatio-temporal position of the gravity meter is determined with subsequent calculation of Coriolis accelerations, earth and ocean tides and gravitational effect of atmosphere. Corrections are calculated for displacement rate of zero point of gravimeter and absolute value of measurements by calculation of difference between values of displacement speed of zero point of gravimeter and absolute value of measurements obtained during current measurements in investigated area, and corresponding values of displacement speed of zero point of gravimeter and absolute value of measurements obtained above abyssal plain. Additional corrections are calculated for inertial vertical acceleration, Coriolis acceleration, earth and ocean tides and gravitational effect of atmosphere and correction of measured values of gravity is introduced.EFFECT: technical result is high accuracy of measuring the gravitational field of the Earth by taking into account systematic and random ...

СПОСОБ СОЗДАНИЯ ОПОРНОЙ ГРАВИМЕТРИЧЕСКОЙ СЕТИ

Изобретение относится к геофизической разведке полезных ископаемых. Целью изобретения является повышение точности за счет исключения коррелируемости измерений на опорных точках и удешевление работ путем сокращения количества рейсов. Сущность способа заключается в том, что измерения Δq на опорных точках проводятся группой гравиметров, каждый из которых имеет свой принудительный режим. При этом исключается коррелируемость измерений. Способ позволяет создавать опорные сети рейсами неограниченной продолжительности, что значительно удешевляет работы. Точность измеряемых значений Δq определяется по формуле где N - число точек в рейсе, на которых имеются дополнительные замеры; K - степень многочлена, аппроксимирующего смещение нуль - пункта; σ - среднеквадратичная погрешность еденичного измерения. 1 ил.

Способ определения гравитационной постоянной

FIELD: measuring equipment. SUBSTANCE: invention relates to methods for determining the gravitational constant and can be used to determine the gravitational constant for the shape of interacting bodies other than the ball. Essence: for all positions of the attracting bodies, the periods and amplitudes of the oscillations of the torsion balance are measured, as well as the masses, dimensions, position of all interacting bodies, according to which the moments of attraction of the working body of the weights by the attracting bodies and the moment of its inertia about the vertical axis are calculated. In addition, the effect of the means of moving the attracting bodies on the oscillation period of the balance is measured. Gravitational constant in the system of two differential equations of motion is determined. In order to determine the gravitational constant on the basis of the numerical values of the moments of attraction of the working body of the weights with attractive bodies for different fixed values of the deflection angles, instead of the model systems providing calculations by analytical formulas with preservation of the periods and amplitudes of the oscillations,analytical expressions are found for the moments of attraction at given positions interacting bodies, containing coefficients at the first and third degrees of the angle of deviation of the weights. If necessary, higher degrees are added. After that, the numerical values of the gravitational constant are determined by two independent methods, adapted to a specific experiment by introducing coefficient arrays at all positions for different degrees of the angle of deviation of the weights. When the dependence of the gravitational constant on the combinations of positions is found, it is eliminated by selecting the position of the attracting bodies in the near position while preserving the distances between all the positions. In this case, the final result and the experimental data are considered ...

СПОСОБ ГЕОФИЗИЧЕСКОЙ РАЗВЕДКИ

FIELD: geophysical modeling. SUBSTANCE: invention relates to the field of geophysical modeling and can be used to isolate hydrocarbon traps in complex environments, containing acoustically contrasting geological objects. Seismic surveys determine the locations of hydrocarbon traps, located under contrasting geological objects. High-precision gravimetric survey is conducted. Consistent reservoir model on a set of gravitational and seismic data is formed. According to the agreed model, the seismic wave field is modeled. By comparing the model and real seismic fields, parameters are selected for imaging the environment under and above the contrasting geological objects. Dynamic parameters of the images are distinguished by the traps of hydrocarbons. EFFECT: improvement of the accuracy of hydrocarbon traps. 1 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 659 753 C1 (51) МПК G01V 11/00 (2006.01) G01V 1/00 (2006.01) G01V 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G01V 2210/6165 (2006.01); G01V 7/00 (2006.01); G01V 11/00 (2006.01) (21)(22) Заявка: 2017118773, 30.05.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 03.07.2018 (45) Опубликовано: 03.07.2018 Бюл. № 19 2 6 5 9 7 5 3 R U (54) СПОСОБ ГЕОФИЗИЧЕСКОЙ РАЗВЕДКИ (57) Реферат: Изобретение относится к области геофизического моделирования и может быть использовано для выделения ловушек углеводородов в сложно построенных средах, содержащих акустически контрастные геологические объекты. Сущность: посредством сейсморазведки определяют местоположения ловушек углеводородов, расположенных под контрастными геологическими объектами. Проводят высокоточную гравиметрическую съемку. Формируют пластовую согласованную Стр.: 1 (56) Список документов, цитированных в отчете о поиске: RU 2482519 C2, 20.05.2013. SU 1484122 A3, 19.06.1995. EA 201390195 A1, 30.08.2013. RU 2090916 C1, 20.09.1997. модель по комплексу гравитационных и сейсмических ...

СПОСОБ ИЗМЕРЕНИЯ ГРАВИТАЦИОННОЙ ПОСТОЯННОЙ

Генератор гравитационных волн

СПОСОБ ГРАВИМЕТРИЧЕСКОГО КОНТРОЛЯ РАЗРАБОТКИ ГАЗОВЫХ МЕСТОРОЖДЕНИЙ В РАЙОНАХ С СЕЗОННОЙ ИЗМЕНЧИВОСТЬЮ ВЕРХНЕЙ ЧАСТИ РАЗРЕЗА

Способ гравиметрического контроля разработки газовых месторождений в районах с сезонной изменчивостью верхней части разреза, основанный на проведении в пределах площади месторождения циклических повторных наблюдений за изменениями силы тяжести на базисных и режимных гравиметрических пунктах, отличающийся тем, что, с целью повышения достоверности и точности контроля за счет исключения влияния сезонных изменений в верхней части разреза, наблюдения на каждом гравиметрическом пункте проводят как на земной поверхности, так и в специально пробуренных скважинах, глубина которых не меньше толщины слоя сезонных изменений, находят суммы значений силы тяжести на земной поверхности и в скважине и по их вариациям между отдельными циклами наблюдений определяют гравитационный эффект обусловленный разработкой месторождения.

Генератор - детектор гравитационно-волновых возмущений

СПОСОБ ХРУСТАЛЕВА Е.Н. ОПРЕДЕЛЕНИЯ ВЕЛИЧИНЫ ПОСТОЯННОЙ ТЯГОТЕНИЯ ЗВЕЗДЫ

СПОСОБ ОЦЕНКИ ОПАСНЫХ СИТУАЦИЙ В УГОЛЬНЫХ ШАХТАХ

Способ оценки опасных ситуаций в угольных шахтах, включающий оценку гравитационных пульсаций в земной коре под воздействием Солнца и Луны, отличающийся тем, что отслеживают взаимное положение векторов гравитационной силы Солнца и Луны и их суммарное воздействие на земную кору с учетом периода вращения Луны и суточного вращения Земли, при этом определяют векторную сумму воздействия на 12 ч местного времени и на 24 ч с поправкой на географическую широту, где расположены шахты, а затем определяют силу воздействия суммарного вектора вращения, направленного против вращения Земли и почасовое воздействие ее на пласты угля и вмещающих пород с учетом угла их залегания и выявляют промежутки времени опасных воздействий, которые могут спровоцировать катастрофические явления (выбросы угля и газов, обрушение пород, горные удары и т.п.), полученную информацию доводят до сведения руководителей предприятий для предупреждения и принятия мер безопасности.

СПОСОБ МНОГОКОМПОНЕНТНОГО ГРАВИМЕТРИЧЕСКОГО МОДЕЛИРОВАНИЯ ГЕОЛОГИЧЕСКОЙ СРЕДЫ

... 1. Способ многокомпонентного гравиметрического моделирования геологической среды на изучаемой площади, включающий измерения с гравиметрами по профилям, учет поправки за влияние рельефа местности, построение карты аномалий силы тяжести и выделение информативных составляющих поля, отличающийся тем, что профили располагают параллельно или субпараллельно и создают два секущих диагональных профиля, концы которых соединяют между собой связующими профилями, причем один или более пунктов этих диагональных профилей совмещают с пунктами основных профилей, а опорный пункт помещают в перекрестие секущих диагональных профилей, затем в измеренные значения силы тяжести вводят поправки за влияние рельефа местности, выполняют аналитическую аппроксимацию измеренного гравитационного поля с заданной погрешностью и редуцируют его на высоту на несколько горизонтальных плоскостей, путем решения обратной линейной задачи определяют плотности в каждом слое между двумя соседними плоскостями и выполняют построение ...

СПОСОБ И УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ ИЗМЕНЕНИЯ СОСТОЯНИЯ ВРАЩАЮЩЕГОСЯ ВОЛЧКА (ПРОСТРАНСТВЕННО-ВРЕМЕННОЙ ГЕОМЕТРИЗАТОР)

... 1. Способ измерения изменения состояния вращающегося волчка, на который передают колебательное механическое воздействие, отличающийся тем, что измерения проводят индукционным датчиком, с которого регистрируют основную возбужденную гармонику, равную частоте вращения волчка, причем на волчок накладывают тормозящий импульс, синхронизированный с частотой вращения, синхронизированный импульс получают за счет отраженного света от светоотражающего сектора, нанесенного на поверхности волчка и регистрируют время изменения состояния волчка. 2. Устройство для измерения изменения состояния волчка, содержащее волчок, систему регистрации, систему запуска и вибрации, отличающееся тем, что волчок выполнен в виде цилиндра, насаженного на ось двигателя, на внешней поверхности волчка нанесен светоотражающий сектор, волчок с двигателем установлен на платформе из постоянных магнитов, платформа насажена на ось, которая закреплена на стационарном постоянном магните, магниты платформы и магнит стационарный установлены ...

Способ определения гравитационной постоянной с добавлением периода колебаний при отсутствии кареток

Способ обнаружения гравитационных волн и устройство для осуществления способа

СКВАЖИННЫЙ ПРИБОР ГРАВИТАЦИОННОЙ РАЗВЕДКИ И СПОСОБ ГРАВИТАЦИОННОЙ РАЗВЕДКИ СКВАЖИНЫ

... 1. Скважинный прибор гравитационной разведки, отличающийся тем, что включает удлиненный полый сосуд, корпус датчика, расположенный внутри сосуда, универсальный шарнир, опирающийся на вал шарнира, обеспечивающий вращение внутри корпуса датчика, причем ось вращения вала шарнира расположена под углом к продольной оси сосуда, гравиметрический датчик для измерения силы тяжести, установленный внутри универсального шарнира, первое приводное средство для вращения шарнира относительно оси вращения вала шарнира, второе приводное средство для вращения шарнира относительно продольной оси сосуда, блок датчика, определяющий наклон сосуда относительно вертикали и регулятор, управляющий первым и вторым приводными средствами в зависимости от сигналов, поступающих от датчика. 2. Прибор гравитационной разведки по п.1, отличающийся тем, что включает дополнительно механизм транспортировки для удержания и перемещения прибора в скважине. 3. Прибор гравитационной разведки по п.2, отличающийся тем, что включает ...

СПОСОБ ВЫЯВЛЕНИЯ ГОРИЗОНТОВ ПОЛЕЗНЫХ ИСКОПАЕМЫХ (ВАРИАНТЫ) И УСТРОЙСТВО ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

... 1. Способ выявления горизонтов полезных ископаемых, включающий измерение величин ускорения силы тяжести в месте предполагаемого расположения горизонтов полезных ископаемых и отождествление аномалии ускорения силы тяжести (отличие измеренных величин ускорения силы тяжести от ускорения нормальной силы тяжести на уровенном эллипсоиде) с расположением горизонта полезных ископаемых, отличающийся тем, что дополнительно измеряют ускорение силы тяжести при равновесной низкотемпературной плазме, если аномалии ускорения силы тяжести не выявлено, измерение ускорения силы тяжести повторяют при пульсирующей низкотемпературной плазме. 2. Способ выявления горизонтов полезных ископаемых, включающий измерение гравиметром с чувствительным элементом ускорения силы тяжести в месте предполагаемого расположения горизонтов полезных ископаемых и отождествление аномалии ускорения силы тяжести (отличие измеренных величин ускорения силы тяжести от ускорения нормальной силы тяжести на уровенном эллипсоиде) с расположением ...

Способ оценки скорости распространения гравитационных явлений

ГЕНЕРАТОР ФЕРРОГРАВИТАЦИОННОГО ПОЛЯ

... 1. Генератор ФГП, включающий сверхпроводник, по которому пропускаются совместные токи электрических и магнитных зарядов или постоянный феррогравитоник.2. Генератор ФГП по п.1, отличающийся тем, что свехпроводник может выполняться в форме соленоида.3. Генератор ФГП по любому из пп.1 и 2, отличающийся тем, что в соленоид вставляется сердечник из гравитомягкого материала - феррогравитационный аналог магнитомягкого сердечника.4. Генератор ФГП по п.1, отличающийся тем, что для создания ФГП может использоваться твердотельный феррогравитоник, который является феррогравитационным аналогом постоянного магнита.

СПОСОБ ПРОГНОЗА СКРЫТОГО ОРУДЕНЕНИЯ, СВЯЗАННОГО С ГРАНИТОИДАМИ

Способ прогноза скрытого оруденения, связанного с гранитоидами, характеризующийся тем, что для перспективных рудоносных участков осуществляют на базе данных по физическим свойствам пород, слагающих модельный разрез, и материалов мелкомасштабных гравиразведочных и магниторазведочных съемок построение «нулевой» глубинной модели, в виде глубинных разрезов, в которых всем выявленным телам присваивают соответствующие интервалы изменений плотностных и магнитных характеристик, после чего путем решения серии обратных задач осуществляют в интерактивном режиме подбор глубинной модели, в процессе которого меняют как форму отдельных тел модели, так и их физические параметры (плотность и намагниченность) до практически полного совпадения расчетных гравитационного и магнитного полей с наблюденными, полученное неоднородное распределение плотности пород и намагниченности интерпретируют, используя эталонные генетические модели рудно-магматических систем, с построением геолого-геофизических разрезов, в которых ...

СПОСОБ ДЕТАЛЬНОЙ ГРАВИМЕТРИЧЕСКОЙ СЪЕМКИ

СПОСОБ ИЗМЕРЕНИЯ СКОРОСТИ РАСПРОСТРАНЕНИЯ В ПРОСТРАНСТВЕ СТАТИЧЕСКОГО ТЯГОТЕНИЯ

Способ измерения скорости распространения в пространстве статического тяготения как гравитационного излучения путем сравнения ее со скоростью света, отличающийся тем, что с применением участвующего в осуществлении вычислительных операций стационарно установленного в точке измерения в условиях экватора Земли базового прибора-высокочувствительного (порядка 2•10-9 Гал) гравиметра с явно выраженной осью чувствительности к направлению напряженности поля тяготения Земли, защитой измерительной системы от вредных воздействий, с встроенной или же дополнительно обеспечиваемой машинной обработкой по заданной программе в текущем времени совокупности полезного и прочих корректировочных сигналов из числа учитываемых помех, в том числе, например, вызываемых тяготением Луны, и документированием выходной информации на шкале времени и по расчетным ступеням, устанавливают режим проведения операций - измеряют с учетом корректировочных поправок вызываемые тяготением Солнца изменения силы тяжести на Земле как ...

СПОСОБ ОПРЕДЕЛЕНИЯ ПРИРАЩЕНИЙ ГРАДИЕНТА СИЛЫ ТЯЖЕСТИ

Изобретение относится преимущественно к геофизике, а именно к гравиметрическому методу, и может быть использовано при определении приращения градиента силы тяжести, детектировании гравитационных волн, а также для определения максимальной и минимальной устойчивости и безопасности биологических систем, систем "человек-оператор - технический комплекс", любых неравновесных материальных систем, в которых самопроизвольно, как условие жизнедеятельности, или под действием внешнего источника энергии возникают градиенты концентраций и потоки заряженных частиц, происходят процессы самоорганизации, от которых зависит структура электрического тока, и при прогнозировании катастроф и обеспечении привентивных мер по их предотвращению в деятельности страховых компаний. Цель: повышение чувствительности. В способе определения приращения градиента силы тяжести, включающем подачу постоянного тока на входные контакты электродинамической чувствительной системы гравиметра, измерение электрического параметра на ...

СПОСОБ ИЗМЕРЕНИЯ СКОРОСТИ РАСПРОСТРАНЕНИЯ В ПРОСТРАНСТВЕ ГРАВИТАЦИОННЫХ СИЛ

Сущность изобретения состоит в том, что, с целью обеспечения наибольшей эффективности и точности измерения искомой скорости, измеряют и фиксируют во времени приращения ускорения силы тяжести по радиусу Земли в условиях экватора Земли в период равноденствия посредством высокочувствительного гравиметра с явно выраженной осью чувствительности, определяют с учетом корректировки часов по расположению на прямой линии центра Земли, точки измерения на поверхности Земли и центра диска Солнца в диапазоне электромагнитного излучения временной интервал измерения, например, порядка шести часов в выбранной части шкалы суточного времени, включающий из-за вращения Земли момент прямого нацеливания оси чувствительности гравиметра на центр масс Солнца в диапазоне гравитационного влияния, характеризуемый максимумом приращений ускорения силы тяжести, и момент прямого нацеливания оси чувствительности гравиметра на центр диска Солнца в диапазоне электромагнитного излучения в самой середине временного интервала ...

Гравиметр

Устройство для измерения силы тяжести на дне моря электростатическими гравиметрами

Способ определения ускорения силы тяжести на подвижном основании

ПРИСТАВКА К СТЕРЕОФОТОГРАММЕТРИЧЕСКИМ ПРИБОРАМ, СНАБЖЕННЫМ ПАРАЛЛАКТИЧЕСКИМ ВИНТОМ

Сейсмометр

Изобретение относится к геофизическому приборостроению и может быть использовано в сейсмометрах. Целью изобретения является уменьшение температурных погрешностей сейсмометра в области низких часото . Поставленная цель достигается путем свободной установки стойки из термо- стабильного сплава, например инвара , на плите корпуса сейсмометра. Уменьшение температурного дрейфа сейсмометра обеспечивается за счет снижения теплообмена стойки с минимальным коэффициентом линейного расширения с окружающей средой и устранения вертикальных перемещений стойки, вызванных тепловым расширением плиты . 1 з.п. ф-лы, 1 ил. о iS (Л ...

Experiment zum Nachweiß von Raumwellen

Physikalisches Doppelspaltexperiment zur Untersuchung der Elektroneneigenschaften, damit gekennzeichnet, dass nach dem Doppelspalt und vor dem Elektronendetektor ein Photonenvorhang aus quer fliegenden Photonen installiert wird und dass dieser Photonenvorhang planparallel zum Detektor verläuft und die Photonen dieses Vorhangs erst mit dem Detektor kollidieren, wenn sie beim Versuchsverlauf durch eine aus dem Doppelspalt ankommender Wirkung beeinflusst werden. Wahlweise können Experimente durchgeführt werden, bei denen einzelne Elektronen oder Elektronengruppen nicht durch die zwei Spalten schießen, sondern vorzugsweise auf die Fläche zwischen den zwei Spalten, und/ oder dass diese Elektronen auf der Ebenen der zwei Spalten entweder abgefangen (z.B. geklebt) werden, oder auf eine andere dafür geeignete Weise seitlich von den Spalten reflektiert werden und dass dadurch diese Elektronen unmittelbar am Spalt an dem eigentlichen Durchtritt durch die Spalten gehindert werden. Die Versuche sind ...

IN-SITU-VERFAHREN ZUR BESTIMMUNG DER ERDVERFLÜSSIGUNGSTENDENZ UND IHRER VERHINDERUNG DURCH ELEKTROOSMOSE

Verfahren zur Untersuchung geologischer Schichten

Weiter verbesserte Detektoranordnung zum Nachweis von Strings innerhalb von Raumquanten

In der vorliegenden Anmeldung wird eine weiter verbesserte Detektoranordnung zum Nachweis von Strings innerhalb von Raumquanten vorgestellt, welche auf eine bereits bekannte Detektoranordnung zum selben Zwecke aufbaut.Dabei basiert das Arbeitsprinzip der weiter verbesserten Detektoranordnung auf ein modifiziertes Modell von Strings und Raumquanten, welches ein bereits bestehendes Modell erweitert.Das bereits bestehende Modell erklärt mittels Schwebungen von Streuwellen, warum Gravitationswellen nur bei der Beschleunigung von Massenobjekten entstehen; allerdings besitzt es lediglich eine Gültigkeit für den eindimensionalen Raum. Das modifizierte Modell berücksichtigt auch die Raum- und Zeitquantelung, welche dazu führt, dass Messwerte nicht punktuell, sondern lediglich über ein Raum- und Zeitintervall gemittelt gemessen werden können, womit die Gültigkeit dieses Modells auf alle drei Dimensionen des Raums ausgedehnt wird.Darauf stützend wird noch ein Gedankenmodell vorgestellt, welches zeigt ...

MESSKOPF FUER GRAVIMETRISCHE UND/ODER KALORIMETRISCHE UNTERSUCHUNGEN.

TORSIONALLY RESONANT GRAVITY GRADIENT SENSOR

... 1,219,165. Measuring gravitational field gradient electrically. HUGHES AIRCRAFT CO. Oct.29, 1968 [Feb. 2, 1968], No.51181/68. Heading G1N. Apparatus for measuring static gravitational field gradient is as described in Specification 1,105,491 but a modification of the sensor head, employing two mass dipoles and a single strainsensitive transducer, is described. A torsionally resonant gravity gradient sensor head 10 comprises two orthogonally disposed mass dipoles 11 and 13 formed by arms 23, each supporting masses, 21, at either end. The arms are connected at their centres by a torsionally flexible spring member 19, attached to which is a strain-sensitive transducer 25. In use the head is rotated at a constant angular velocity by a servo loop 57-67, the velocity feedback signal from photo-electric detector 61 being employed also as a frequency and phase reference in the detector 73. The gravitational field induces forces in the dipoles at harmonics of the rotation frequency the sensor head ...

Microgravimeter for geophysical prospecting

SYSTEM FOR MONITORING THE RESONANCE FREQUENCY OF A BODY

... 1326016 Measuring temperature acoustically UNITED KINGDOM ATOMIC ENERGY AUTHORITY 15 Oct 1970 [25 Nov 1969] 57729/69 Heading H4D In an arrangement for measuring temperature utilizing an acoustic thermometer of the kind described in Specification 1,146,520 in which resonance of a probe is detected as a driving oscillator is swept over a range of frequencies, means is provided for deriving a control signal from the resonant condition of the probe and for employing the control signal to maintain the frequency of the oscillator at the resonant frequency. Thus, as shown in Fig. 1, the probe comprising a 1 c.m. length of wire 1 joined to a solid cylinder 2 which is joined to a transmission wire 3, all the elements being formed of molybdenum, is vibrated by a magnetostrictive rod 4 polarized by a permanent magnet 5 and driven by a coil 6 supplied via a pulser 16 with the output of an oscillator 11 the frequency of which may be swept over the range 100-150 Kc/s. as a direct function of a D.C. control ...

Borehole surveying

Using a survey instrument having its longitudinal axis coincident with the axis of the borehole, the survey instrument is rotated about the borehole axis at a survey station, and the components of the earth's gravity and the earth's magnetic field (gOX, gOY, gOZ, BOX and BOY) are measured along two non-coincident axes (OX and OY) transverse to the axis of the borehole for at least three different orientations (O) of the survey instrument about the borehole axis. At least one error correction value is determined from the results of these measurements (gOX, gOY, gOZ, BOX, BOY). The azimuth and inclination of the borehole are then determined at a plurality of points along the length of the borehole by measuring the components of the earth's gravity and the earth's magnetic field (gOX, gOY, gOZ, BOX and BOY) along the transverse axes (OX and OY) and applying the previously determined error correction value to the measurements so obtained.

A method of mapping reservoir fluid movement using gravity sensors

The present disclosure relates to methods and apparatuses for acquiring multi-component gravity information for an earth formation. More particularly, the present disclosure relates to estimating the movement of fluid in an earth formation using at least one gravimeter configured to generate multi-component gravity information. The method may include estimating density changes in the earth formation. The method may include estimating a position of the at least one gravimeter. The apparatus may include a multi- component gravimeter configured to estimate gravity vectors for each vector component.

Estimating change in position of production tubing in a well

Characterizing a parameter of interest relating to a formation intersected by a borehole. Methods may include estimating the parameter using at least one gravity measurement adjusted to account for a gravity field gradient associated with a change in a frame of reference caused by removal of a reference feature from the borehole. Methods may also include taking at least one prior gravity measurement before removal of the reference feature from the borehole; taking at least one prior gravity measurement after removal of the reference feature from the borehole; estimating the change in the frame of reference based on the prior gravity measurements taken before and after removal of the reference feature; and adjusting the at least one gravity measurement using the estimated change.

Gravity survey data processing

System for measurement of static force field gradients

... 1,105,491. Measuring magnetic and gravitational fields electrically; measuring static electric field gradient. HUGHES AIRCRAFT CO. May 17, 1965 [June 5, 1964], No. 20716/65. Headings G1N and G1U. The gradient, with respect to distance, of a force field such as gravity is measured by an apparatus including a member consisting of, for example, an elongate strip 31, Fig. 3, carrying masses 41, 42, at its ends, which member is rotated on a shaft 32 (or caused to perform a rotary reciprocating motion, or a linear reciprocating motion parallel to or perpendicular to its length) at a frequency which makes the member vibrate at its natural resonant frequency in response to a net difference in gravitational forces acting upon the masses 41, 42, the amplitude and phase of the natural oscillation being indicative of the magnitude and direction of the field gradient. First and higher order derivatives of the gradient may be measured by appropriately selecting the frequency of rotation (or the like) ...

Improvements in instruments for measuring the force of gravity

... 381,141. Measuring force of gravity. HAUSER & CO., GES., 9, Frauentorstrasse, Augsburg, Germany. June 28, 1932, No. 18278. Convention date, Nov. 27, 1931. [Class 97 (iii).] In an instrument for measuring the force of gravity in which the force acting on a column of liquid stresses the resilient member of a movable system, the resilient member is in contact with the liquid so that the effects of varying temperature on the density of the liquid and on the resilience of the resilient member may be arranged to compensate each other. In the form shown the vessel 1 supported on the tripod 2 contains a column of mercury 26 within which is a hollow iron float 6 attached by a coiled spring 10 to a stud 13 at the bottom of the vessel 1. A pointer 16 projects from a stud 14 on the float into a housing 20 and its motion relative to a scale may be observed through a microscope 17 provided with a micrometer adjustment. In a modification the resilient member may act on a diaphragm upon which the liquid ...

Apparatus for the measurement of gravitational gradients

Analyzing a hydrocarbon reservoir by determining the response of that reservoir to tidal forces.

Apparatus for the measurement of gravitational gradients.

Method and system for evaluating geophysical survey data

SYSTEM FOR DIA.-MAGNETIC LEVITATION

SYSTEM AND METHOD FOR THE DETERMINATION OF DENSITY DISTRIBUTIONS IN THE UNDERGROUND

DEVICE AND PROCEDURE FOR THE GRAVITATION MEASUREMENT

Gravity gradiometer accelerometers

SEISMIC BASE ISOLATION BY ELECTRO-OSMOSIS DURING AN EARTHQUAKE EVENT

Absolute gravimetric measurement device by atomic interferometry for geophysical applications particularly for monitoring hydrocarbon reservoirs

Absolute gravimetric measurement device (10) of the type comprising, arranged in downward succession along the vertical direction, a laser system (13), a supporting surface (16) of said laser system (13), an ultra-vacuum system (14), a retroreflective mirror (21) and a seismic attenuation system (15), said seismic attenuation system (15) comprising an upper plate (1002) equipped with a hole (1003) above which said retroreflective mirror (21) is kept suspended by means of at least three metallic blades (70, 71, 72), said three metallic blades (70, 71, 72) comprising first ends constrained to the periphery of said plate (1002) and second ends inciding above said hole (1003) in correspondence with said retroreflective mirror (21), said metallic blades (70, 71, 72) being configured to form a spring-antispring geometry for damping the vibrations of the retroreflective mirror (21) along said vertical direction, wherein said absolute gravimetric measurement device (10) also comprises means for ...

System and process for secondary hydrocarbon recovery

SYSTEM AND PROCESS FOR OPTIMIZING GRAVITY GRADIOMETER MEASUREMENTS

Gravity gradient measurements taken by an accelerometer type gradiometer are optimized by tilting the measuring plane of the instrument by a selected angle above and below the horizontal to obtain data that can be differenced or otherwise processed to remove instrument bias and by taking data at first and then at a second orthogonal azimuth heading to obtain absolute non-relative gradient measurements.

SYSTEM AND PROCESS FOR SECONDARY HYDROCARBON RECOVERY

A hydrocarbon reservoir undergoing secondary recovery is subject to a first and then at least a second gravity gradient survey in which a gravity gradiometer takes gradient measurements on the surface above the reservoir to define successive data sets. The differences between the first and subsequent gravity gradient survey yields information as to sub-surface density changes consequent to displacement of the hydrocarbon and the replacement thereof by the driveout fluid including the position, morphology, and velocity of the interface between the hydrocarbon to be recovered and the driveout fluid.

METHOD OF DETERMINING BOUNDARY INTERFACE CHANGES IN A NATURAL RESOURCE DEPOSIT

A method of determining changes in the boundary interface in a sub-surface oil reservoir between the to-be-recovered oil and a driveout fluid, such as steam, uses time-displaced gravity gradient measurements to provide an indication of the changes in the gravity gradient over time. The measured data are subject to a simulated annealing optimization to find the global minimum that best represents the observed values within the solution space. The optimization process includes establishing an appropriately constrained model of the oil reservoir and a quantized set of mathematically related parameters that define the model. Successive models are perturbed and evaluated from a figure of merit standpoint until a global minimum that best describes the measured time- lapse data is found.

ACCELEROMETER AND RATE SENSOR PACKAGE FOR GRAVITY GRADIOMETER INSTRUMENTS

An accelerometer and rate sensor package to aid gravity gradiometers is provided. The accelerometer and rate sensor package is mounted directly on or within a gravity gradiometer instrument (GGI). Outputs from the sensors can be used to reduce unwanted noise due to angular rotational rates, angular accelerations and linear accelerations that may be coupled to the GGI. Since the sensor assembly is directly mounted on or within the GGI, the sensor assembly is coupled to the GGI and senses the acceleration and angular rates as seen by the GGI. Thus, outputs from the GGI can be corrected more effectively using the sensor assembly's outputs.

SEISMIC BASE ISOLATION BY ELECTRO-OSMOSIS DURING AN EARTHQUAKE EVENT

A method and system of isolating a structure (1) and soil mass (2) from earthquake induced vibration by inducing soil liquefaction beneath a structure (1) during an earthquake event, by monitoring local seismic precursor events, such as early arrival ground motion using an accelerometer (4), predicting the onset of a major earthquake tremor and energizing conductors (8, 9) in the ground (2) by a do power source (7) for moving the ground water by electro- osmosis towards a suitable isolation layer (10), whereby raising the pore water pressure in the isolation layer (10) during the earthquake event and thus isolating the structure (1) and soil above the particular soil horizon from the upward propagating shear wave ground motions arising from the earthquake event.

BIPARTITE SENSOR ARRAY

A bipartite sensor array comprising two portions capable of assembly into a single sensory system. A first portion comprises rigid bodies connected by elongate flexures and fitted with gravimetric tilt sensors. The elongate flexures are capable of non-monotonic and non-constant bend in two degrees of freedom. A second portion comprised of rigid bodies connected by joints, contains the first portion. The second portion, which may be delivered and assembled separately from the first, provides rigidity and protection, enabling the first portion to have short rigid bodies and long connecting flexures, thereby reducing the number of sensors required. The bipartite sensor array is applicable to geotechnical measurements of soil and civil structures.

METHOD FOR MONITORING SEAFLOOR MOVEMENTS

Seafloor movements are monitored by measuring the ambient seawater pressure at a plurality of locations adjacent to the seafloor using asynchronous pressure signals generated by a plurality of pressure sensors mounted at different locations on the seafloor over a prolonged period of time(t), wherein harmonic tide- related pressure variations on the asynchronous pressure signals are corrected by an algorithm comprising a mathematical equation that models spatial and temporal pressure variations in an objective function. The method is unconstrained with regard to the synchronicity of depth and/or pressure measurements and does not require additional stationary short term local reference measurements.

A METHOD OF MAPPING RESERVOIR FLUID MOVEMENT USING GRAVITY SENSORS

The present disclosure relates to methods and apparatuses for acquiring multi-component gravity information for an earth formation. More particularly, the present disclosure relates to estimating the movement of fluid in an earth formation using at least one gravimeter configured to generate multi-component gravity information. The method may include estimating density changes in the earth formation. The method may include estimating a position of the at least one gravimeter. The apparatus may include a multi- component gravimeter configured to estimate gravity vectors for each vector component.

APPARATUS AND METHODS FOR DETERMINING PARAMETERS DOWNHOLE USING GRAVITY-AFFECTED SENSOR

In one aspect, an apparatus for use in a wellbore is provided that in one embodiment includes a sensor having a plurality of spaced conductive contact elements, a sensing member that moves by gravity and contacts at least two contact elements in the plurality of contact elements to create an electrical short between such at least two contact elements and a circuit coupled to the contact elements configured to generate electrical signals in response to the electrical short between the contact elements.

POLARIZED BEAM DIRECTOR AND METHOD

Incident differently-polarized light beams are separately directed and combined by one or two corner cube structures, each having one or two walls formed as a beam splitter. One incident light beam is passed, while the other incident light beam is reflected.

Dispositif à capsule thermostatique.

Vorrichtung zur Messung von räumlichen Aenderungen höherer Ordnung eines statischen Gravitations-Potentialfeldes

Messkopf für gravimetrische und/oder kalorimetrische Untersuchungen

Appareil de mesure à un champ d'accélération ou de pesanteur

Verfahren zur Ermittlung einer mechanischen Resonanzfrequenz eines Körpers und Vorrichtung zur Ausführung des Verfahrens

METHOD OF RECORDING GRAVITATIONAL QUANTUM RADIATION

СПОСОБ ИНТЕРПРЕТАЦИИ ДАННЫХ ЭЛЕКТРОМАГНИТНОЙ РАЗВЕДКИ

Способ интерпретации данных электромагнитной разведки, проводимой методом переходных процессов, включает измерение переходной характеристики среды (характеристики становления вторичного электромагнитного поля среды) относительно группы коммутационных событий. Далее осуществляют моделирование измеренной переходной характеристики в результате первого коммутационного события из числа коммутационных событий, обусловленных переключением тока. После чего производят вычисление переходной характеристики по указанной модели для по меньшей мере одного обусловленного переключением тока коммутационного события, состоявшегося по времени прежде указанного, по меньшей мере, первого обусловленного переключением тока коммутационного события. Затем производят суммирование рассчитанной по модели переходной характеристики с измеренной переходной характеристикой от первого коммутационного события, а указанную сумму сравнивают с результатами измерений при электромагнитной разведке. Далее осуществляют коррекцию ...

GAUGE OF MICRO-GRAVITY FOR THE GEOPHYSICAL PROSPECTING

ДВУХРОТОРНЫЙ ИНТЕГРИРУЮЩИЙ ГИРОСКОПИЧЕСКИЙ ГРАВИМЕТР С КОНТРОЛИРУЕМЫМИ ПАРАМЕТРАМИ

Изобретение относится к области физики, а именно к измерению вертикальной составляющей вектора гравитационного ускорения с борта подвижного аппарата. Двухроторный интегрирующий гироскопический гравиметр с контролируемыми параметрами содержит гироскопический датчик гравитационного ускорения, систему определения текущих навигационных параметров и измеритель текущей высоты, которые подключены к бортовой цифровой вычислительной машине (БЦОМ). Гироскопический датчик гравитационного ускорения содержит одинаковые первый и второй гиромоторы, с одинаковыми, но противоположными частотами вращения, и установленные во внешней рамке и связанные с помощью электромеханической сельсинной связи. Датчик момента установлен на оси подвеса внешней рамки. Первый, второй и третий датчики угла поворота расположены на оси подвеса первого гидромотора, оси подвеса внешней рамки и на оси внутреннего подвеса второго гидромотора, соответственно. Первый датчик угла поворота подключен через усилитель к датчику момента ...

СИСТЕМЫ ОБРАБОТКИ ГЕОФИЗИЧЕСКИХ ДАННЫХ

Способ обработки геофизических данных, включающих в себя, по меньшей мере, измеренные данные о потенциальном поле из съемки потенциального поля исследованного региона земли, для обеспечения представления геологии указанного исследованного региона, при этом способ содержит формирование первой модели указанного исследованного региона путем подбора данных, прогнозируемых с помощью указанной первой модели, к указанным измеренным данным для заданного частотного диапазона; прогнозирование данных о потенциальном поле всего диапазона для всех измеренных частот путем использования указанной сформированной первой модели; сравнение указанных прогнозируемых данных всего диапазона с указанными измеренными данными о потенциальном поле для обеспечения остаточных данных всего диапазона, представляющих разность между прогнозируемыми данными всего диапазона и измеренными данными всего диапазона, и интерпретацию указанных остаточных данных всего диапазона для обеспечения представления указанной геологии указанного ...

РАДИОФИЗИЧЕСКИЙ ГРАВИМЕТР

Изобретение относится к средствам измерения параметров гравитационного поля, в частности к гравиметрам, для измерения ускорения силы тяжести. Гравиметр состоит из по меньшей мере одного измерительного блока и блока обработки результатов измерений. Измерительный блок выполнен с возможностью определения изменения частоты сигнала в гравитационном поле и содержит источник сигнала, канал распространения сигнала, приемник сигнала, два стандарта частоты и частотный компаратор, при этом выход первого стандарта частоты соединен с входом источника сигнала и через канал распространения с входом приемника сигнала, выход которого соединен с первым входом частотного компаратора, второй вход которого соединен с выходом второго стандарта частоты, а выход частотного компаратора соединен с блоком обработки результатов измерений, по которым определяют значение гравитационного потенциала и ускорение силы тяжести. Изобретение повышает точность измерения параметров гравитационного поля.

СПОСОБ ОЦИФРОВКИ СКАНИРОВАННЫХ КАРТ ФАКТИЧЕСКОГО МАТЕРИАЛА СРЕДСТВАМИ ГЕОИНФОРМАЦИОННОЙ СИСТЕМЫ "МАПИНФО"

Способ оцифровки сканированных карт фактического материала средствами геоинформационной системы "Maplnfo" включает сканирование карты, регистрацию растрового изображения, оцифровку, введение соответствующих цифровых значений, закрытие и сохранение файла с координатами.

УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ ГРАДИЕНТОВ СИЛЫ ТЯЖЕСТИ

Предложено устройство для измерения квазистатических градиентов силы тяжести, содержащее гибкую струну (1) и средства вывода для формирования выходного сигнала как функции градиентов силы тяжести, причем струна закреплена на обоих концах (2, 2'), а устройство содержит воспринимающие средства (L1, L2) для обнаружения поперечных смещений струны из исходного положения в состоянии покоя, обусловленных градиентом силы тяжести вокруг струны, при этом средства вывода выполнены с возможностью реагирования на обнаруженное смещение для формирования выходного сигнала как функции градиента силы тяжести, а устройство также содержит средства (30), установленные в положении, соответствующем средней точке между закрепленными концами струны, и выполненные с возможностью предотвращения перемещений струны, соответствующих всем нечетным модам, начиная с С-моды струны, и с отсутствием возможности влияния на по меньшей мере перемещение струны, соответствующее второй фундаментальной моде (S-моде) струны. Международная ...

АВТОМАТИЗИРОВАННАЯ ГРАВИМЕТРИЧЕСКАЯ СИСТЕМА С ВЫСОКОТОЧНЫМ ВЫСТАВЛЕНИЕМ ОСИ ЧУВСТВИТЕЛЬНОСТИ ГРАВИМЕТРА

Автоматизированная гравиметрическая система с высокоточным выставлением оси чувствительности гравиметра содержит пробное тело, первую и вторую системы измерения пути и времени движения пробного тела и блок управления системами измерения пути и времени движения пробного тела. В состав первой системы измерения пути и времени движения пробного тела входят направляющий цилиндр, платформа, устройство удержания пробного тела в начальном положении и устройство определения текущей координаты перемещения пробного тела. В состав второй системы измерения пути и времени движения пробного тела входят источник освещения/излучения, видеокамера и устройство аппроксимации. Дополнительно содержит вторую видеокамеру и второй источник освещения/излучение, приводы пространственного положения платформы, устройство возврата пробного тела в начальное положение и систему крепления видеокамер.

ИНТЕРФЕРОМЕТР ДЛЯ ИЗМЕРЕНИЙ АБСОЛЮТНОГО ЗНАЧЕНИЯ УСКОРЕНИЯ СИЛЫ ТЯЖЕСТИ СИММЕТРИЧНЫМ СПОСОБОМ ФЕДОРОВСКОГО

Интерферометр для измерений абсолютного значения ускорения силы тяжести симметричным способом, в котором референтный отражатель оптически соединен с расчетным количеством неподвижных стеклянных тетраэдров с внутренним зеркальным покрытием, которые на торцевой плоскости имеют технологические окна, расположенные на разных радиусах относительно оптического центра тетраэдров, а отраженные пучки лучей не изменяют собственной длины системой поворотных и полупрозрачных зеркал, последовательно оптически соединенных между собой.

ГРАВИМЕТР ДЛЯ ИЗМЕРЕНИЯ АБСОЛЮТНОГО ЗНАЧЕНИЯ УСКОРЕНИЯ СИЛЫ ТЯЖЕСТИ

Изобретение касается гравиметра для измерений абсолютного значения ускорения силы тяжести симметричным способом на море. Гравиметр содержит: электронный блок регулировки, соленоид, соединенный с электронным блоком регулировки; несущий элемент, расположенный внутри соленоида. На несущем элементе закреплена электронная схема, которая содержит три датчика угловой скорости, расположенные в горизонтальной плоскости под разными углами, соединенные с электронной блок-схемой алгоритма работы гравиметра, расположенной в электронном блоке регулировки. Кроме того, содержит источник монохроматического луча; измерительный интерферометр, в состав которого входит делительный элемент монохроматического луча, подвижный отражатель, референтный отражатель, размещенный в вакуумной камере, систему поворотных зеркал с полупрозрачным зеркалом на выходе. Вакуумная камера содержит магнитные уловители и катапульту, которая имеет дополнительный соленоид, соединенный с электронным блоком регулировки.

ПРОБНОЕ ТЕЛО ДЛЯ АБСОЛЮТНОГО БАЛЛИСТИЧЕСКОГО ГРАВИМЕТРА

Изобретение относится к средствам измерительной техники для измерения абсолютного значения ускорения силы тяжести. Пробное тело для абсолютного баллистического гравиметра содержит подвижный оптический отражатель, закрепленный в корпусе, который двигается в вакуумной камере с подбрасывающим устройством, и расположено так, что отраженный измерительный луч лазерного источника света в оптическом блоке интерферометра интерферирует с опорным лучом лазерного источника, а фотоэлектрические преобразователи превращают интерференционные сигналы между опорным и измерительным лучами в электрические сигналы, которые поступают в вычислительный узел, который рассчитывает абсолютное значение величины ускорения силы тяжести. Использован оптический отражатель типа "кошачий глаз", а боковой поверхности пробного тела придана форма сегмента сферы, боковым поверхностям ушек для центрирования пробного тела на подбрасывающем устройстве придана форма сегмента сферы большего радиуса, при этом геометрический центр ...

ГРАВИМЕТРИЧЕСКАЯ СИСТЕМА С ВЫСОКОТОЧНЫМ ВЫСТАВЛЕНИЕМ ОСИ ЧУВСТВИТЕЛЬНОСТИ ГРАВИМЕТРА

Изобретение относится к средствам гравиметрических измерений. Гравиметрическая система с высокоточным выставлением оси чувствительности гравиметра содержит гравиметр (1), установленный на платформе (2), к входу управления которого подключена цифровая электронная вычислительная машина (ЭВМ) (3). Система дополнительно содержит видеокамеру (5), процессор (6) линейной аппроксимации метки, светоотражающий элемент (7), фотоэлектрический автоколлиматор (8), а на корпус гравиметра (1) нанесена метка (4) в виде отрезка прямой линии, направление которой совпадает с направлением оси чувствительности гравиметра (1), причем метка (4) оптически связана с входом видеокамеры (5), выход которой подключен к входу процессора (6) линейной аппроксимации метки, выход которого соединен с первым входом цифровой ЭВМ (3), второй вход которой соединен с выходом фотоэлектрического автоколлиматора (8), вход которого оптически связан со светоотражающим элементом (7), который закреплен на корпусе гравиметра (1). Изобретение ...

СИСТЕМЫ ОБРАБОТКИ ГЕОФИЗИЧЕСКИХ ДАННЫХ

Описан способ обработки геофизических данных, включающих в себя, по меньшей мере, данные измеряемого потенциального поля из съемки потенциального поля исследуемого района земли, для обеспечения трехмерного представления нижележащей геологии упомянутого исследуемого района, при этом способ содержит этапы, на которых вводят скорректированные по местности данные потенциального поля для упомянутого исследуемого района, при этом упомянутые данные потенциального поля содержат данные для диапазона пространственных длин волн, геологические структуры на различных глубинах в упомянутом исследуемом районе, связанные с различными длинами волн в упомянутом диапазоне длин волн; фильтруют упомянутые данные потенциального поля по пространственной длине волны для образования первого множества отфильтрованных наборов данных потенциального поля, при этом каждый относится к соответствующей длине волны или диапазону длин волн, при этом каждый задает геологические структуры на различной соответствующей упомянутой ...

ADIABATIC RAPID PASSAGE ATOMIC BEAMSPLITTER USING FREQUENCY-SWEPT COHERENT LASER BEAM PAIRS

Methods and apparatus for providing coherent atom population transfer using coherent laser beam pairs in which the frequency difference between the beams of a pair is swept over time. Certain examples include a Raman pulse adiabatic rapid passage sweep regimen configured to be used as a beamsplitter and combiner in conjunction with an adiabatic rapid passage mirror sweep or a standard Raman mirror pulse in a 3-pulse interferometer sequence. 1. A method for controllably translating a quantum object comprising:mixing at least two electromagnetic waves of at least first and second time-varying frequencies to produce coherent electromagnetic energy of a third time-varying frequency; andapplying and directing the coherent electromagnetic energy in pulse form of preselected area, duration, polarization, and time-dependent frequency profile at the quantum object thereby inducing transitions between two distinct internal levels of the quantum object to change momentum of the quantum object.2. The method of wherein mixing the at least two electromagnetic waves includes heterodyning a pair of electromagnetic waves with a time-varying frequency difference to produce the coherent electromagnetic energy and to effect adiabatic Raman transitions between the two distinct quantum levels in the quantum object.3. The method of claim 1 , further comprising claim 1 , after the applying and directing steps:observing the internal quantum state of the quantum object to determine a momentum of the quantum object; anddetermining a velocity of the quantum object based on the momentum of the quantum object.4. The method of claim 1 , further comprising directing the at least two electromagnetic waves along a collinear path to the quantum object.5. The method of claim 1 , wherein applying the coherent electromagnetic energy includes applying the coherent electromagnetic energy in temporal pulse form to the quantum object.6. The method of claim 5 , wherein the quantum object is substantially ...

Absolute gravimetric measurement device by atomic interferometry for geophysical applications particularly for monitoring hydrocarbon reservoirs

An absolute gravimetric measurement device including, in succession, a laser system, a supporting surface of the laser system, an ultra-vacuum system, a retroreflective mirror, and a seismic attenuation system. The seismic attenuation system includes an upper plate including a hole above which the retroreflective mirror is kept suspended by at least three metallic blades including first ends constrained to a periphery of the plate and second ends above the hole in correspondence with the retroreflective mirror, the metallic blades configured to form a spring-antispring geometry for damping vibrations of the retroreflective mirror. The absolute gravimetric measurement device also includes a mechanism leveling the retroreflective mirror integral with the seismic attenuation system and a radial constraining mechanism between the retroreflective mirror and the upper plate.

Directional Filter for Processing Full Tensor Gradiometer Data

A directional filter for processing full-tensor gradiometer data is described. The filter processes input data using a method comprising receiving geophysical data collected based on characteristics of geographic features in an environment, and applying a directional filter to the received geophysical data in a first instance so as to provide first filtered data. A filtering direction of the directional filter is determined based on properties in the received geophysical data. The method also includes updating the filtering direction based on properties in the first filtered data, applying the directional filter to the received geophysical data in a subsequent instance using the updated filtering direction so as to provide subsequent filtered data, and based on the updated filtering direction having a subsequent update less than a threshold, outputting directionally filtered data. The subsequent update is determined due to properties in the subsequent filtered data output from the subsequent instance. 1. A method comprising:receiving geophysical data collected based on characteristics of geographic features in an environment;applying a directional filter to the received geophysical data in a first instance so as to provide first filtered data, wherein a filtering direction of the directional filter is determined based on properties in the received geophysical data;updating the filtering direction based on properties in the first filtered data;applying the directional filter to the received geophysical data in a subsequent instance using the updated filtering direction so as to provide subsequent filtered data; andbased on the updated filtering direction having a subsequent update less than a threshold, outputting directionally filtered data, wherein the subsequent update is determined due to properties in the subsequent filtered data output from the subsequent instance.2. The method of claim 1 , wherein the geophysical data includes full tensor gradiometer data.3. ...

Chip-Scale Optomechanical Gravimeter

An method and apparatus for measuring gravitational force are described where at least one first radiation can be provided to at least one optomechanical oscillator, the at least one optomechanical oscillator being structured to deform under the gravitational force to cause a shift in resonance associated with the at least one optomechanical oscillator. In addition, at least one second radiation is received from the at least one optomechanical oscillator, wherein the at least one second radiation is associated with the shift in the resonance, and the shift in the resonance can be determined based on the first and second radiations. 1. A method of determining a gravitational force , the method comprising:providing at least one first radiation to at least one optomechanical oscillator, the at least one optomechanical oscillator being structured to deform under the gravitational force to cause a shift in resonance associated with the at least one optomechanical oscillator;receiving at least one second radiation from the at least one optomechanical oscillator, wherein the at least one second radiation is associated with the shift in the resonance; anddetermining the shift in the resonance based on the first and second radiations.2. The method of claim 1 , further comprising determining a change in the gravitational force based on the shift in the resonance.3. The method of claim 1 , wherein determining the shift comprises measuring modulation associated with an optomechanical cavity claim 1 , the modulation being determined by comparing the first and second radiations.4. The method of claim 3 , wherein measuring the modulation comprises measuring an amplitude and phase of the second radiation.5. A non-transitory computer readable medium for determining a shift in a resonance associated with at least one optomechanical oscillator claim 3 , the computer readable medium including instructions stored therein and accessible by a hardware processing arrangement claim 3 , ...

SYSTEMS, DEVICES AND METHODS FOR BOREHOLE GRAVIMETRY

A gravimeter, a gravimeter system, and a method for measuring gravitational acceleration within a borehole are described herein. The gravimeter includes a proof mass that is constrained by springs and an optical interferometer for measuring displacement of the proof mass. The optical interferometer generates a light path from a light source to a reflective surface on the proof mass. Spatial displacement of the proof mass from a reference position to a position of gravitational equilibrium is determined by measuring a change in length of the light path. In turn, gravitational acceleration can be determined from the spatial displacement of the proof mass. A number of such gravimeters can be used in a gravimeter system to make measurements of gravitational acceleration in variety of different directions. 1. A method for measuring gravitational acceleration , the method comprising:locating a gravimeter within a borehole, wherein the gravimeter includes a proof mass that is constrained by at least one spring;generating a light path from a light source to a reflective surface on the proof mass; anddetermining spatial displacement of the proof mass from a reference position to a position of gravitational equilibrium by measuring a change in length of the light path.2. The method according to claim 1 , further comprising:determining gravitational acceleration based upon the spatial displacement.3. The method according to claim 2 , wherein the reference position is a position of gravitational equilibrium at a surface location.4. The method according to claim 2 , wherein measuring the change in length of the light path includes determining a number of interference fringes between the reference position and the position of gravitational equilibrium using an optical interferometer.5. The method according to claim 2 , wherein the reference position is a position of the proof mass at a limit of spatial displacement.6. The method of claim 1 , further comprising:moving the proof ...

Tar Mat Formation Prediction in Late-Charge Reservoirs

A downhole tool, surface equipment, and/or remote equipment are utilized to obtain data associated with a subterranean hydrocarbon reservoir, fluid contained therein, and/or fluid obtained therefrom. At least one condition indicating that a density inversion exists in the fluid contained in the reservoir is identified from the data. Molecular sizes of fluid components contained within the reservoir are estimated from the data. A model of the density inversion is generated based on the data and molecular sizes. The density inversion model is utilized to estimate the density inversion amount and depth and time elapsed since the density inversion began to form within the reservoir. A model of a gravity-induced current of the density inversion is generated based on the data and the density inversion amount, depth, and elapsed time.

GRAVITATIONAL RADIATION COMMUNICATION SYSTEM

A gravitational radiation communication system. The system includes a gravitational radiation transmitter and a gravitational radiation receiver. Each of the transmitter and the receiver includes a first cylindrical superconducting cavity, having a first length, a first diameter, and an entrance aperture for electromagnetic radiation; a second cylindrical superconducting cavity, having a second length, a second diameter, and a first aperture for gravitational radiation, the second cavity being coaxial with and adjacent the first cavity; and a superconducting movable membrane positioned between the first cavity and the second cavity and configured to provide parametric amplification of electromagnetic fields in the second cavity. The first aperture is configured to pass gravitational radiation. 1. A gravitational radiation communication system comprising a gravitational radiation transmitter and a gravitational radiation receiver; each of the transmitter and the receiver comprising:a first cylindrical superconducting cavity, having a first length, a first diameter, and an entrance aperture for electromagnetic radiation;a second cylindrical superconducting cavity, having a second length, a second diameter, and a first aperture for gravitational radiation, the second cavity being coaxial with and adjacent the first cavity; anda superconducting movable membrane positioned between the first cavity and the second cavity and configured to provide parametric amplification of electromagnetic fields in the second cavity;wherein the first aperture is configured to pass gravitational radiation.2. The system of claim 1 , each of the transmitter and the receiver further comprising:a third cylindrical superconducting cavity, having a third length, a third diameter, and a second aperture for gravitational radiation, the third cavity being coaxial with and adjacent the second cavity; anda superconducting iris positioned between the second cavity and the third cavity, the iris having ...

MEASUREMENT BY ATOMIC INTERFEROMETRY WITH MULTIPLE SPECIES OF ATOMS

Disclosed is a method for measuring an external parameter by atomic interferometry, using two sets of atoms that belong to different species. Two measurements are taken simultaneously at the same location, but independently from one another, in order to obtain two measurement results. One of these measurement results removes an indeterminacy among several possible values of the external parameter, by taking into account only the other measurement result. A method of this kind can be used to measure a coordinate of a gravitational field or a coordinate of an acceleration of the atoms. 11112. Method of measurement by atomic interferometry , in which each session of measurements is executed with at least two sets of atoms ( , ) each subjected to conditions of formation of an atomic interference ,{'b': 11', '12, 'the atoms of each set of atoms (, ) being of a species dedicated to said set of atoms and different from the species of atoms of each other set of atoms,'}{'b': 11', '12, 'method in which, for each session of measurements, said conditions are produced for each set of atoms (, ) throughout a volume that is associated with said set of atoms and that contains at least one point in common with the volume associated with each other set of atoms, and are produced between a start time point and an end time point respectively before and after an intermediate time point that is common to all the sets of atoms,'}{'sub': 11', '12, 'b': 11', '12, 'and in which a measurement result (P, P) is obtained in each session of measurements independently for each set of atoms (, ), each measurement result varying according to a first function of a phase shift that appeared for the set of atoms during the formation of the atomic interference, and said phase shift itself being a second function of an external parameter (a) a value of which is sought,'}{'b': '11', 'sub': '11', 'said first function being alternately increasing and decreasing for at least a first () of the sets of atoms ...

METHOD FOR MEASURING DENSITY CHANGE OF UNDERGROUND MATERIAL USING GRAVIMETER

Provided is a method of measuring a change in the density of an underground material. To measure the change in the density of the underground material, a borehole is installed above a target underground material and a first gravimeter and a second gravimeter are installed outside and inside of the borehole, respectively. Sequentially, a change in the density of the target underground material is calculated based on a first gravitational change and a second gravitational change measured using the first gravimeter and the second gravimeter. According to the method, it is possible to precisely measure the change in the density of the target underground material, such as an oil, a gas, etc., stored in an underground reservoir and carbon dioxide injected into an underground storage. 1. A method of measuring a change in the density of an underground material , comprising:forming a borehole above a target underground material;installing a first gravimeter and a second gravimeter outside and inside of the borehole, respectively;measuring a first gravitational change and a second gravitational change using the first gravimeter and the second gravimeter, respectively; andcalculating a change in the density of the target underground material based on the first gravitational change and the second gravitational change.2. The method of claim 1 , wherein the target underground material is one selected from the group consisting of an underground oil claim 1 , a gas claim 1 , and carbon dioxide.3. The method of claim 1 , wherein information about an earth crust material existing above the target underground material is obtained in the forming of the borehole claim 1 , and wherein the second gravimeter is installed at a position set based on the information about the earth crust material.4. The method of claim 2 , wherein the information about the earth crust material includes information about a content and distribution of an underground fluid claim 2 , which varies with a depth of ...

Measurement by means of atomic interferometry with multiple species of atoms

Disclosed is a method for measuring an external parameter by atomic interferometry using two sets of atoms that belong to different species. Two measurements are taken simultaneously at the same location, but independently from one another, in order to obtain two measurement results. Constant phase shifts that appear in the atomic interferences for the two atom sets are quadrature-adjusted in order to ensure that one of the two measurements provides a value for the external parameter with satisfactory accuracy.

Stratigraphic function

A method can include receiving implicit function values at nodes of a coarse mesh of a region of interest in a geologic environment; receiving data: formulating constraints based at least in part on the data; solving a system of equations for a finer mesh subject to the constraints; and outputting implicit function values at nodes of the finer mesh based at least in part on solving the system of equations.

STORAGE DEVICE AND METHOD OF OPERATING THE SAME

Provided herein may be a storage device and a method of operating the same. A storage device for protecting the storage device from physical movement may include a nonvolatile memory device, a sensor unit configured to collect information about physical movement of the storage device, and a memory controller configured to perform a device lock operation of protecting data in the nonvolatile memory device, based on a sensor value acquired from the sensor unit. 1. A storage device , comprising:a nonvolatile memory device;a sensor unit configured to collect information about physical movement of the storage device; anda memory controller configured to perform a device lock operation of protecting data in the nonvolatile memory device based on a sensor value acquired from the sensor unit.2. The storage device according to claim 1 , wherein the memory controller is configured to perform the device lock operation depending on an enabled status or disabled status of a device lock mode indicating whether the device lock operation has been activated.3. The storage device according to claim 2 , wherein the memory controller is configured to:change the device lock mode to enabled status or disabled status in response to a command for instructing the device lock mode to be enabled or disabled, the command being provided from an external host.4. The storage device according to claim 3 , wherein the memory controller is configured to claim 3 , when the device lock mode is in enabled status and the sensor value exceeds a threshold claim 3 , lock the storage device.5. The storage device according to claim 4 , wherein the memory controller is configured to receive claim 4 , from the external host claim 4 , a password to be used to unlock the storage device claim 4 , which is in a locked status claim 4 , either simultaneously or sequentially with the command for instructing the device lock mode to be enabled claim 4 , and to store the received password in the nonvolatile memory ...

ESTIMATING CHANGE IN POSITION OF PRODUCTION TUBING IN A WELL

Characterizing a parameter of interest relating to a formation intersected by a borehole. Methods may include estimating the parameter using at least one gravity measurement adjusted to account for a gravity field gradient associated with a change in a frame of reference caused by removal of a reference feature from the borehole. Methods may also include taking at least one prior gravity measurement before removal of the reference feature from the borehole; taking at least one prior gravity measurement after removal of the reference feature from the borehole; estimating the change in the frame of reference based on the prior gravity measurements taken before and after removal of the reference feature; and adjusting the at least one gravity measurement using the estimated change. 1. A method of characterizing a parameter relating to a formation intersected by a borehole , the method comprising:estimating the parameter using at least one gravity measurement adjusted to account for a gravity field gradient associated with a change in a frame of reference caused by removal of a reference feature from the borehole.2. The method of claim 1 , further comprising:taking at least one prior gravity measurement before removal of the reference feature from the borehole;taking at least one prior gravity measurement after removal of the reference feature from the borehole;estimating the change in the frame of reference based on the prior gravity measurements taken before and after removal of the reference feature; andadjusting the at least one gravity measurement using the estimated change.3. The method of claim 1 , wherein the change in the frame of reference is at least one of i) a coordinate translation caused by a change in reference feature position; and ii) a coordinate rotation caused by a change in gravity sensor orientation.4. The method of claim 1 , wherein the reference feature is positioned in the borehole and along the production tubing.5. A method of characterizing a ...

GRAVITY TRANSDUCER

An airborne gravity-based transducer is disclosed as two embodiments with similar physical structures but different operating principles. The first design includes a particle acting as an active interface characterized by internal vibrations relating to its de Broglie wave, a resonant cavity for trapping the particle, and a phonon-wave source wherein the de Broglie and phonon waves interact over a junction area. In the second design, mechanical displacements between the transducer elements can be monitored through electromechanical transduction. Both designs include a power source and a biasing circuit for producing an electrical current across the junction, and a sensing system for measuring voltage. Both designs are capable of cancelling slowly-varying gravitational acceleration due to dynamic interaction in motion with the gravitational field and responding to small-scale gravity anomalies. The transducer can be utilized in hydrocarbon exploration to provide information on areas conducive to fluid entrapment in the sedimentary column. 1. A gravity transducer system comprising:a junction comprising a first metal and a second metal, said junction forming an active capacitance due to the mechanical vibration of the junction assembly;a power source for applying electrical power across said junction;a sensor capable of sensing voltage, said sensor electrically connected with said junction, said sensor producing a sensed signal characteristic of a gravitational signal; anda recording system for recording said sensed gravitational signal.2. A gravity transducer system as in and further comprising a vehicle capable of moving said transducer system in a rectilinear motion.3. A gravity transducer system as in wherein said junction comprises:a conductive bead having longitudinal bore through it;a conductive pin having a dielectric coating, said pin located in said longitudinal bore to form said electrical junction; anda dielectric polymer spacer between said bead and said ...

OPTOMECHANICAL DEVICE FOR ACTUATING AND/OR DETECTING MOVEMENT OF A MECHANICAL ELEMENT, IN PARTICULAR FOR GRAVIMETRIC DETECTION

Optomechanical device for actuating and/or detecting movement of a mechanical element, in particular for gravimetric detection. It includes a support with a mechanical element anchored to the support which is designed to move relative to the element, and a device for actuating and/or detecting movement or of variations in frequency of movement of the element. A portion of the device is arranged beneath at least part of the element, between the element and the support. The device includes a fixed optical device with at least one optical waveguide arranged beneath all or part of the element at a determined distance from the element, and which is designed to propagate at least one optical wave having a given wavelength designed to interact with the element. The optical waveguide is at a determined distance from the mechanical element so that the evanescent field of the optical waveguide interacts with the mechanical element. 1. An optomechanical device comprising:a support, and on the latter:at least one mechanical element which is anchored to the support and which is designed to move relative to the latter, anda device for actuating the mechanical element and/or for detecting movement of the mechanical element or of variations of the frequency of movement, where at least a portion of the actuation and/or detection device is arranged beneath all or part of the mechanical element, between the latter and the support,wherein the actuation and/or detection device comprises an optical device which is fixed with respect to the support, which comprises at least one optical wave guide, which is arranged beneath all or part of the mechanical element, at a determined distance from the latter, and which is designed to propagate at least one optical wave which has a given wavelength, designed to interact with the mechanical element, and wherein the optical waveguide is at a determined distance from the mechanical element so that the evanescent field of the optical waveguide ...

SIMULTANEOUS LOCALIZATION AND MAPPING BY USING EARTH'S MAGNETIC FIELDS

There is provided an apparatus configured to perform operations comprising: acquiring motion data sets from the plurality of mobile devices; estimating route models of the travelled routes on the basis of the motion data sets; generating EMF fingerprints for the travelled routes by associating the acquired EMF data sets with corresponding points of the route models; and determining the locations of the routes with respect to each other on the basis of at least one of the following: the EMF fingerprints and the route models. 1. An apparatus , comprising:at least one processor and at least one memory including a computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to perform operations comprising:acquiring indoor non-labeled Earth's magnetic field, EMF, data sets representing at least one of magnitude and direction of the EMF in a building from a plurality of mobile devices, wherein routes corresponding to the non-labeled EMF data sets in the building are unknown;acquiring motion data sets from the plurality of mobile devices;estimating route models of the travelled routes on the basis of the motion data sets;generating EMF fingerprints for the travelled routes by associating the acquired EMF data sets with the route models; anddetermining the locations of the routes with respect to each other on the basis of at least one of the following: the EMF fingerprints and the route models.2. The apparatus of claim 1 , wherein apparatus is further caused to perform operations comprising:acquiring location dependent data of the mobile devices; andlimiting a geographical location of a given mobile device on the basis of the location dependent data related to that mobile device, thereby clustering the data sets from the plurality of mobile devices geographically; andapplying the clustering when determining the locations of the routes with respect to each other.3. The apparatus ...

Method for Estimating Subsurface Properties from Geophysical Survey Data Using Physics-Based Inversion

A hydrocarbon exploration method for determining subsurface properties from geophysical survey data. Rock physics trends are identified and for each trend a rock physics model is determined that relates the subsurface property to geophysical properties (). The uncertainty in the rock physics trends is also estimated (). A geophysical forward model is selected (), and its uncertainty is estimated (). These quantities are used in an optimization process () resulting in an estimate of the subsurface property and its uncertainty. 1. A computer-implemented method for estimating a subsurface property , and uncertainty associated with the estimate , from geophysical measurements , said method comprising:determining one or more rock type trends in the subsurface, and identifying a rock physics model for each trend that mathematically relates the subsurface property to one or more geophysical properties;determining a statistic describing uncertainty in each rock type trend and its rock physics model;selecting a geophysical forward model for predicting the geophysical measurements using current values of the subsurface property at a plurality of subsurface spatial locations;determining a statistic describing uncertainty in the geophysical forward model in predicting the geophysical measurements;forming an estimate of the subsurface property and its associated uncertainty, using a computer, which estimate minimizes misfit between the geophysical measurements and forward-modeled predictions of the geophysical measurements, using the one or more rock type trends and their rock physics models, the uncertainties in the rock type trends and in the forward model, andusing the estimate of the subsurface property to assess commercial potential of a subsurface reservoir.2. The method of wherein the geophysical measurements are at least one of: seismic data traces claim 1 , stacked seismic data claim 1 , angle stacks of seismic data claim 1 , pre-stack gathers of seismic data claim 1 , ...

OPTIC AND CATALYTIC ELEMENTS CONTAINING BOSE-EINSTEIN CONDENSATES

An element containing Bose-Einstein condensations (BECs) is disclosed. The BECs are able to interact with photons to create optic and catalytic functions including at least one of changing propagation of the photons, changing mutual coherence among the photons, changing a penetration depth of the photons, detecting the photons, changing chemical reactions occurred on a surface of the element, and changing nuclear reactions occurred in a boundary or an implanted crystal defect containing impurity. 1. An element containing Bose-Einstein condensations (BECs) , the BECs to interact with photons to create optic and catalytic functions including at least one of changing propagation of the photons , changing mutual coherence among the photons , changing a penetration depth of the photons , detecting the photons , changing chemical reactions occurred on a surface of the element , and changing nuclear reactions occurred in a boundary or an implanted crystal defect containing impurity.2. A method of creating superradiance , the method comprising:providing an element containing Bose-Einstein condensations (BECs); andemitting photons from a source to impinge the element, the photons to interact with the BECs so as to create the superradiance.3. The method of claim 2 , further comprising:based on collective nuclear coupling, selecting the photons and geometry of the element to provide optical functions by the superradiance.4. The method of claim 2 , wherein every axis of the element is greater than a coherent length of the impinging photons claim 2 , and the superradiance remains forward scattering in the same impinging direction.5. The method of claim 2 , wherein an impinging direction is along the longest axis of the element claim 2 , and the impinging photons create superradiance by forward scattering in the same direction.6. The method of claim 2 , wherein an impinging direction is the short axis of the element while a coherent length of the impinging photons is longer than ...

APPARATUS AND METHOD FOR LOCALIZING UNDERWATER ANOMALOUS BODY

The present disclosure relates to an apparatus and a method for localizing an underwater anomalous body, which detect, in real time, any one disturbed signal among a disturbed electric field, a disturbed magnetic field, and a disturbed gravity field by means of a detection line installed in the water when an anomalous body such as a submarine passes through the water, calculates a correlation coefficient between the disturbed signal detected in real time and a template in which disturbed signals for each position are calculated and stored in advance, finds a correlation coefficient having highest similarity, and determines a position of the anomalous body from the template. 1. An apparatus for localizing an underwater anomalous body , the apparatus comprising:a detection line which is installed in the form of a line in the water and outputs a disturbance detection signal corresponding to an underwater anomalous body when the underwater anomalous body approaches the detection line;a signal processing unit which is configured to receive, in real time, the detection signal from the detection line and filter the detection signal;a template comparison target range defining unit which is configured to analyze properties of the detection signal filtered by the signal processing unit and define a comparison target range of a template;a correlation coefficient calculating unit which is configured to recognize a disturbed signal by analyzing the detection signal, and calculate a correlation coefficient between the disturbed signal and the template in the range defined by the template comparison target range defining unit; andan anomalous body position determining unit which is configured to find a correlation coefficient closest to 1 among the correlation coefficients calculated by the correlation coefficient calculating unit, and determine a position of the anomalous body from the template in respect to the correlation coefficient.2. The apparatus of claim 1 , wherein the ...

Superconducting Acceleration Sensor Suitable For Gravitational Wave Radiation Detection

This invention detects mass and mass motion of external objects by virtue of its action as a gravimeter, gravity gradiometer, and detector of gravitational fields. This invention is for devices which function as accelerometers and gyroscopes for the bodies to which they are attached. 1. A device for detecting acceleration or changes in acceleration , comprising:{'sub': 'c', 'an electrical loop supporting current flow having at least a first segment fabricated from a first superconducting material and a second segment fabricated from a second superconducting material different from the first superconducting material, each superconducting material having a respective critical temperature T;'}{'sub': 'c', 'means for cooling said electrical loop to a temperature below the critical temperature Tto support superconductivity in said loop; and'}a sensor for sensing current flow in said electrical loop in response to acceleration-induced current flow therein.2. The device of claim 1 , further comprising a plurality of said electrical loops.3. The device of claim 1 , where said sensor comprises a SQUID detector.4. The device of claim 1 , where said electrical loop comprises an open loop electrically connected to a measuring device.5. The device of claim 1 , where said electrical loop comprises an open loop having a switch in-circuit therewith for electrically closing said loop.6. The device of claim 5 , where said sensor comprises a SQUID detector.7. A device for detecting acceleration or changes in acceleration claim 5 , comprising:{'sub': 'c', 'an electrical loop supporting current flow having at least a first segment fabricated from a first superconducting material, a second segment fabricated from a second superconducting material different from the first superconducting material, a third segment fabricated from the first superconducting material, and a fourth superconducting material fabricated from the second superconducting material, each superconducting material ...

System and Method for Determining a Borehole Azimuth Using Gravity In-Field Referencing

A system and method are provided for determining borehole azimuth. The method comprises receiving a first set of data from a first sensor module, the first sensor module comprising a first plurality of accelerometers; receiving a second set of data from a second sensor module, the second sensor module comprising a second plurality of accelerometers, the second sensor module being positioned further downhole than the first sensor module; determining a first set of gravity components using the first set of data and a second set of gravity components using the second set of data; determining a bend angle and a tilt angle using the first and second sets of gravity components; determining a change in azimuth using the bend and tilt angles; and providing an output indicative of the change in azimuth. The system and method may also use a crustal gravity vector to correct the computed azimuth.

Surface sensing of reactive components in fluids

The present application relates sensing reactive components in fluids by monitoring band gap changes to a material having interacted with the reactive components via physisorption and/or chemisorption. In some embodiments, the sensors of the present disclosure include the material as a reactive surface on a substrate. The band gap changes may be detected by measuring conductance changes and/or spectroscopic changes. In some instances, the sensing may occur downhole during one or more wellbore operations like drilling, hydraulic fracturing, and producing hydrocarbons.

GRAVITY-BASED LIGHT PRESSURE CALIBRATING DEVICE AND CORRESPONDING METHOD

A gravity-based light pressure calibrating device includes a vacuum chamber, a calibration platform, and laser emitters and laser beam expanders, laser beam expanders changing a point light source to an area light source. 1. A gravity-based light pressure calibrating device comprising:a vacuum chamber;a calibration platform; andlaser emitters and laser beam expanders, laser beam expanders changing a point light source to an area light source.2. The gravity-based light pressure calibrating device of claim 1 , wherein a sealing hatch is mounted on a top of the vacuum chamber claim 1 , two entrance ports having an offset with respect to each other in a vertical direction are opened on a wall and on both sides of the vertical axis of the vacuum chamber.3. The gravity-based light pressure calibrating device of claim 2 , wherein each of the laser emitters is connected to a corresponding laser beam expander and is installed to direct to a corresponding entrance port on the wall of the vacuum chamber claim 2 , and each of the entrance ports on the wall of the vacuum chamber claim 2 , the corresponding laser emitter and the corresponding laser beam expander lie in the same vertical plane claim 2 , wherein the wall of the vacuum chamber comprise an observation window.4. The gravity-based light pressure calibrating device of claim 1 , wherein the calibration platform is fixed in middle of the vacuum chamber claim 1 , and wherein the calibration platform further comprises:mirrors;a pure aluminum film;a quartz supporting panel; anda bracket.5. The gravity-based light pressure calibrating device of claim 4 , wherein the quartz supporting panel is fastened at a position on the bracket having a distance of approximately one third of a height of the bracket from the top of the bracket.6. The gravity-based light pressure calibrating device of claim 5 , wherein the pure aluminum film is placed on a middle of the quartz supporting panel claim 5 , and wherein the mirrors include two ...

ROTATIONAL GRAVITY GRADIOMETER

A rotational gravity gradiometer includes a first member, a second member, a drive member and a motor. The first member is disposed above the second member orthogonal to and centered with respect to the second member. The first member includes support arms extending from the center of the first member. The second member includes a second pair of support arms extending from a center point of the second member. A mass unit is attached at a distal end of the respective first member and second member. A sensor element is attached between each mass unit a connection point of the opposite member for sensing movement of the mass unit. The drive member is coupled to the motor to drive the first member and the second member rotationally. The respective sensor elements generate a signal in response to deflection of the support arm induced by an external mass. 1. A rotational gravity gradiometer comprising:a first member, a second member, a drive member and a motor;the first member disposed above the second member orthogonal to and centered with respect to the second member;the first member comprising a first pair of support arms extending axially from a center of the first member;the second member comprising a second pair of support arms extending axially from a center point of the second member;a mass unit is attached to opposite ends of each support arm at a distal end of the respective first member and second member;a first sensor element attached between each mass unit of the first member and a connection point of the second member for sensing movement of the mass unit; and a second sensor element attached between each mass unit of the second member and the drive member; andthe drive member coupled to the motor to drive the first member and the second member rotationally;wherein the respective first and second sensor elements generate a signal in response to deflection of the support arms induced by an external mass.2. The rotational gravity gradiometer of claim 1 , ...

MEASURING ACCELERATION USING INTERFEROMETRY WITH REDUCED ENVIRONMENTAL EFFECTS

An apparatus for measuring acceleration includes: a reference cavity having a first fixed reflecting surface and a second fixed reflecting surface; a sense cavity having a fixed reflecting surface and a non-fixed reflecting surface, the non-fixed reflecting surface being configured to be displaced when subject to an acceleration force; a light source to illuminate the reference and sense cavities; a controller to vary a wavelength of light emitted by the light source and/or an index of refraction of an optical medium of the cavities; a photodetector to detect light emitted by the reference and sense cavities; an interferometer sensor to measure using the detected light, for each variation of the wavelength of light and/or the index of refraction a reference displacement of the reference cavity and a sense displacement of the sense cavity; and a processor to calculate the acceleration using each of the reference displacements and the sense displacements. 1. An apparatus for measuring acceleration , the apparatus comprising:{'sub': 'REF', 'a reference cavity comprising an optical medium and a first fixed reflecting surface and a second fixed reflecting surface disposed a distance dfrom the first fixed reflecting surface;'}{'sub': 'SENSE', 'a sense cavity comprising the optical medium and a fixed reflecting surface and a non-fixed reflecting surface disposed a distance dfrom the fixed reflecting surface, the non-fixed reflecting surface being configured to be displaced when subject to an acceleration force;'}a light source configured to illuminate the reference cavity and the sense cavity;a controller configured to vary a wavelength of light emitted by the light source and/or an index of refraction of the optical medium;a photodetector configured to detect light emitted by the reference cavity and the sense cavity;an interferometer sensor configured to measure using the light detected by the photodetector, for each variation of the wavelength of light emitted by the ...

Beam Splitters

A temporally continuous matter wave beam splitter () comprising a plurality of intersecting and interfering laser beam (k, k), which act as waveguides for a matter wave beam. The laser beams of the waveguides each have a frequency detuned below a frequency of an internal atomic transition of the matter wave. The matter wave has a wavevector which is an integral multiple of the wavevector of the laser beams within a region of intersection of the laser beams. There is also provided an atomic interferometer () comprising such a continuous matter wave beam splitter, and a solid state device comprising such a continuous matter wave beam splitter, which may be part of an atomic interferometer. A cold atom gyroscope, a cold atom accelerometer or a cold atom gravimeter comprising such a solid state device are also provided. There is further provided a quantum computer comprising such a solid state device, wherein atoms of the matter wave beam are in an entangled quantum state. There is also provided a method of splitting a matter wave beam, comprising introducing the matter wave beam into a first temporally continuous laser beam, the frequency of which is detuned below a frequency of an internal atomic transition of the matter wave beam; intersecting and interfering the first continuous laser beam with a second temporally continuous laser beam, the frequency of which is also detuned below the frequency of the internal atomic transition of the matter wave beam; providing the matter wave beam with a wavevector which is an integral multiple of the wavevector of the first and second laser beams within a region of intersection of the laser beams, whereby the laser beams act as waveguides for the matter wave beam. 1. A continuous matter wave beam splitter comprising a plurality of intersecting and interfering laser beams wherein the laser beams have the same frequency and a matter wave beam , the laser beams being arranged to act as waveguides for the matter wave beam , wherein: ...

DE-CENTRALIZED CONTROL ARCHITECTURE FOR IMPROVED SENSITIVITY OF ACCELEROMETER-BASED GRAVITY GRADIOMETERS

A method for rebalancing a group of accelerometers in a gravity gradiometer instrument (GGI) includes the steps of defining and implementing a number of group-wise actuation constrainment modes based on a design of the gravity gradiometer instrument and its accelerometers. Implementing one constrainment mode comprises differentially scaling and distributing a single electrical current to multiple accelerometers' rebalance circuitry to cancel a specific acceleration effect experienced by the group of accelerometers or gradiometer as a whole. Superposition of a number of such modes enables rebalancing the full acceleration environment experienced by the group of accelerometers, given negligible local differential acceleration effects specific to, say, an individual accelerometer of the assembly. Mathematically, the multiple of constrainment modes are encapsulated by an actuation or constrainment modal influence matrix, arranged one mode per column of the matrix, and the electrical currents of respective modes are encapsulated in a vector listing of currents. 1. A method of rebalancing a plurality of accelerometers arranged in a gravity gradiometer instrument (GGI) , each accelerometer of said plurality of accelerometers being decoupled from each other accelerometer , the method comprising the steps of:implementing at least one constrainment mode, wherein each of said at least one constrainment mode corresponds to a subset of accelerometers in said plurality of accelerometers;defining an actuation modes matrix, each column of said actuation modes matrix containing a vector listing of summation coefficients for accelerometers of a constrainment mode associated with the column of the actuation modes matrix;generating a vector listing of constrainment currents for each accelerometer associated with said at least one constrainment mode and applying said vector listing of constrainment currents to said actuation modes matrix to generate an actuation current for each at ...

Odometry Feature Matching

Methods and systems for determining features of interest for following within various frames of data received from multiple sensors of a device are disclosed. An example method may include receiving data from a plurality of sensors of a device. The method may also include determining, based on the data, motion data that is indicative of a movement of the device in an environment. The method may also include as the device moves in the environment, receiving image data from a camera of the device. The method may additionally include selecting, based at least in part on the motion data, features in the image data for feature-following. The method may further include estimating one or more of a position of the device or a velocity of the device in the environment as supported by the data from the plurality of sensors and feature-following of the selected features in the images. 1. A method comprising:receiving, using a processor, data from a plurality of sensors of a device;determining, based on the data, motion data that is indicative of a movement of the device in an environment;as the device moves in the environment, receiving image data from a camera of the device;selecting, based at least in part on the motion data, features in the image data for feature-following; andestimating one or more of a position of the device or a velocity of the device in the environment as supported by the data from the plurality of sensors and by feature-following of the selected features in the images.2. The method of claim 1 ,wherein the plurality of sensors includes an inertial measurement unit (IMU),wherein the motion data includes data received from the IMU that is indicative of a direction of gravity being applied to the device, and identifying one or more vertical lines in the image data as a line that is parallel to the direction of gravity; and', 'providing the identified vertical line as a given feature for feature-following., 'wherein selecting features in the image data for ...

Measurement by means of atom interferometry

The invention relates to a measurement by means of atom interferometry, using a Raman source that is created by modulating a monochromatic laser source. By conveniently selecting positions in which interactions between atoms and a laser radiation, produced by the Raman source, are caused, it is possible to eliminate or at least reduce a measurement bias caused by supplementary components of the laser radiation. Such a measurement having eliminated or reduced bias can be used in an inertia sensor.

METHOD OF UTILIZING MOBILE DEVICE TO DETECT EMERGENCY AND RELATED EMERGENCY DETECTING SYSTEM

A method of utilizing a mobile device to detect an emergency includes detecting whether the mobile device is carried by a user; detecting an acceleration status of the mobile device when the mobile device is determined to be carried by the user; and determining whether the user is in the emergency according to the acceleration status of the mobile device. 1. A method of utilizing a mobile device to detect an emergency , comprising:detecting whether the mobile device is carried by a user;detecting an acceleration status of the mobile device when the mobile device is determined to be carried by the user; anddetermining whether the user is in the emergency according to the acceleration status of the mobile device.2. The method of claim 1 , wherein the step of detecting whether the mobile device is carried by the user is performed by a biosensor.3. The method of claim 2 , wherein the biosensor is a specific absorption rate (SAR) detector of the mobile device.4. The method of claim 1 , wherein the step of detecting the acceleration status of the mobile device is performed by a gravity sensor (G-sensor) of the mobile device.5. The method of claim 1 , wherein the step of determining whether the user is in the emergency according to the acceleration status of the mobile device comprises:calculating a variation in acceleration of the mobile device during a specific period of time, and determining whether the variation is greater than a predetermined value; anddetermining that the user is in the emergency when the variation is determined to be greater than the predetermined value.6. The method of claim 5 , wherein the emergency occurs when the user bumps into an object or falls over.7. The method of claim 1 , wherein the step of determining whether the user is in the emergency according to the acceleration status of the mobile device comprises:determining whether the mobile device is accelerated towards a direction of gravitational acceleration complying with a status of free ...

Gravity Monitoring of a Water-Flooded Zone in Areal Sweep

Methods, systems, and devices for characterizing a water-flooded zone in an earth formation resulting from injection of water to the formation through an injector well borehole intersecting the formation. The method includes estimating horizontal elongation of the water-flooded zone using a gravity field change in the injector well borehole. Estimating horizontal elongation may include predicting a gravity field change for each of a plurality of model water-flooded zones for the borehole, wherein each model water-flooded zone is an elliptical cylinder having finite height and semi-axes; and fitting the gravity field change to one of the predicted gravity field changes corresponding to one of the plurality of elliptical cylinder model water-flooded zones. The gravity field change may comprise a difference between a first estimated gravity field in the injector well borehole before injection and a second estimated gravity field in the injector well borehole after injection. 1. A method of characterizing a water-flooded zone in an earth formation resulting from injection of water to the formation through an injector well borehole intersecting the formation , the method comprising:estimating horizontal elongation of the water-flooded zone using a gravity field change in the injector well borehole.2. The method of claim 1 , wherein estimating horizontal elongation further comprises:predicting a gravity field change for each of a plurality of model water-flooded zones for the borehole, wherein each model water-flooded zone is an elliptical cylinder having finite height and semi-axes; andfitting the gravity field change to one of the predicted gravity field changes corresponding to one of the plurality of elliptical cylinder model water-flooded zones.3. The method of claim 1 , wherein the gravity field change comprises a difference between a first estimated gravity field in the injector well borehole before injection and a second estimated gravity field in the injector ...

Measurement of Acceleration

An acceleration measuring device is disclosed, for use as a gravimeter or gradiometer for example. The device has a support and a proof mass, connected to each other by at flexures allowing displacement of the proof mass relative to the support. The support defines a space for displacement of the proof mass. The device is configured so that the modulus of the gradient of the force-displacement curve of the proof mass decreases with increasing displacement, for at least part of the force-displacement curve. This is the so-called anti-spring effect. The resonant frequency of oscillation of the proof mass is determined at least in part by the orientation of the device relative to the direction of the force due to gravity. The proof mass is capable of oscillating with a resonant frequency of 10 Hz or less. The proof mass has a mass of less than 1 gram.

Method for drilling and characterizing subsurface porosity

A system and associated methodology determines the porosity and water saturation of a cavity using a joint inversion of gravity and ground penetrating radar data. The system exhibits high accuracy. In one embodiment, the cavity is spherical.

De-centralized control architecture for improved sensitivity of accelerometer-based gravity gradiometers

A method for rebalancing a group of accelerometers in a gravity gradiometer instrument (GGI) includes the steps of defining and implementing a number of groupwise actuation constrainment modes based on a design of the gravity gradiometer instrument and its accelerometers. Implementing one constrainment mode comprises differentially scaling and distributing a single electrical current to multiple accelerometers' rebalance circuitry to cancel a specific acceleration effect experienced by the group of accelerometers or gradiometer as a whole. Superposition of a number of such modes enables rebalancing the full acceleration environment experienced by the group of accelerometers, given negligible local differential acceleration effects specific to, say, an individual accelerometer of the assembly. Mathematically, the multiple of constrainment modes are encapsulated by an actuation or constrainment modal influence matrix, arranged one mode per column of the matrix, and the electrical currents of respective modes are encapsulated in a vector listing of currents.

METHOD AND SYSTEM FOR CHARACTERIZATION OF SUBSURFACE CAVITIES USING JOINT INVERSION OF GRAVITY AND GROUND PENETRATING RADAR DATA

A system and associated methodology determines the porosity and water saturation of a cavity using a joint inversion of gravity and ground penetrating radar data. The system exhibits high accuracy. In one embodiment, the cavity is spherical. 1. A method for characterizing subsurface cavities , the method comprising:receiving, via a network, ground penetrating radar measurements;receiving, via the network, gravity measurements;calculating a porosity of cavity filling materials based on the ground penetrating radar measurements and the gravity measurements using a data inversion approach;calculating a water saturation of the cavity filling materials based on the ground penetrating radar measurements and the gravity measurements using the data inversion approach; andsending the porosity and the water saturation to an external device to provide geological characterizing of the subsurface cavities to host applications.2. The method of claim 1 , wherein the subsurface cavities are spherical.3. The method of claim 2 , further comprising:calculating the porosity as a function of a half width of a gravity anomaly curve, a travel time from ground surface to bottom of a host layer through center of the cavity, an electromagnetic wave velocity through the host layer, a distance from ground surface to the top of the cavity, a thickness of the host layer, densities of the cavity filling materials and permittivities of the cavity filling materials.5. The method of claim 3 , wherein the densities of the cavity filling materials and the permittivities of the cavity filling materials are stored in a memory.6. The method of claim 2 , further comprising:calculating the water saturation as a function of a half width of a gravity anomaly curve, a travel time from ground surface to bottom of a host layer through center of the cavity, an electromagnetic wave velocity through the host layer, a distance from ground surface to the top of the cavity, a thickness of the host layer, densities of ...

ROTARY SWITCH STATE DETECTION DEVICE

A rotary switch state detection device includes a magnetic field generating unit, a gravity sensing unit, a magnetic force sensing unit and a processing unit. The magnetic field generating unit generates a magnetic field. The magnetic force sensing unit and the gravity sensing unit are disposed at a rotary switch to detect a gravity value and a magnetic force value of the magnetic field and generate a gravity strength signal and magnetic field strength signal, respectively. The processing unit is connected to the gravity sensing unit and the magnetic force sensing unit to calculate a gravity value variation and a magnetic force value variation and thereby precisely locate a rotation head of the rotary switch upon completion of rotation thereof. 1. A rotary switch state detection device , for detecting a state of a rotary switch having a rotation head , the state varying with a position of the rotation head , the rotary switch state detection device comprising:a gravity sensing unit disposed at the rotation head of the rotary switch to detect a gravity value and generate a gravity strength signal accordingly; anda processing unit connected to the gravity sensing unit to receive the gravity strength signal and calculate a gravity value variation, thereby locating the rotation head.2. The rotary switch state detection device of claim 1 , wherein the gravity strength signal is in a number of one claim 1 , and rotation of the rotation head from an initial position to a first position causes the gravity sensing unit to detect a gravity value of the first position and generate the gravity strength signal accordingly such that the processing unit receives the gravity strength signal and calculates a difference between the gravity value of the first position and a standard gravity value claim 1 , thereby determining the first position.3. The rotary switch state detection device of claim 1 , wherein the gravity strength signal is in a number of two claim 1 , and the gravity ...

METHOD FOR DEFINING THE CURVE OF A TUBULAR STRUCTURE

A method for determining the bend of a tubular structure, including determining the inclination of first and second rigid objects fixed in distinct locations along the tubular structure. The method includes supplying accelerometers (A, . . . A) rigidly linked by the object to measure an acceleration in at least one direction of measurement (vj), the respective directions of measurement of at least two of said accelerometers being non-collinear. The measurement, by the accelerometers, of the components of the Earth's gravitational field along said directions of measurement, the measurement providing, for each of said directions, a measurement value, denoted mfor a measurement direction of index i. The method includes solving a defined matrix equation to determine the inclination Φ of the object relative to the reference frame of reference. 111-. (canceled)13. The method as claimed in claim 12 , in which at least two accelerometers of each of said objects are remote.15. The method as claimed in claim 12 , in which there are at least four of said accelerometers for each of said objects claim 12 , they are distributed in a circle (C) and each exhibit a direction of measurement defined by the radius linking this accelerometer to the center of the circle.16. The method as claimed in claim 15 , in which said accelerometers (A claim 15 , . . . A) are distributed uniformly on said circle.17. The method as claimed in claim 15 , in which the accelerometers exhibit a gaussian and centered statistical measurement noise claim 15 , said solving of the matrix equation comprising the minimization of a criterion L(Φ claim 15 , η) defined by the following equation:{'br': None, 'i': 'L', 'u': [{'@style': 'single', 'i': 'f'}, {'@style': 'single', 'i': 'm'}, {'@style': 'single', 'sup': '−1', 'Γ'}, {'@style': 'single', 'i': 'f'}, {'@style': 'single', 'i': 'm'}], 'sup': 'T', '(θ,η)=(sin(φ)(η)−)××(sin(φ)(η)−)'}{'u': [{'@style': 'single', 'f'}, {'@style': 'single', 'Γ'}], 'sub': 'i', 'with ...

OPTICAL COATING PERMITTING CAVITY SELF-LOCKING

A stable single-carrier optical spring, comprising a pair of dielectric mirrors, each having a dielectric coating, and positioned to form a standing wave from an incident optic field. The dielectric coating has a plurality of layers, where at least the first layer is sized to be an odd multiple of half a wavelength of the laser beam, to feature an opposite-sign photo-thermal effect due to the detailed interaction of the optical field with the coating. This results in an opposite-sign photo-thermal effect at the optical spring frequency. The dampening effect is large enough to stabilize the radiation pressure based optical spring, resulting in a statically and dynamically stable optical spring. As a result this coating allows stable locking of a cavity with a single laser frequency using radiation pressure feedback. 1. A single-carrier optical spring , comprising:a first dielectric mirror having a first dielectric coating comprising a first plurality of layers;a second dielectric mirror having a second dielectric coating comprising a second plurality of layers, wherein the second dielectric mirror is positioned opposite the first dielectric mirror such that the second dielectric coating and first dielectric coating are facing and form an optical cavity between the first dielectric mirror and the second dielectric mirror, and such that a laser beam incident upon the first or second dielectric coating will resonate in the optical cavity formed by the dielectric mirrors,wherein the first layer of the first plurality of layers and the first layer of the second plurality of layers is sized to be an odd multiple of half a wavelength of the incident laser beam.2. The single carrier optical spring of claim 1 , wherein the optical cavity is further formed by a third dielectric mirror or an optical lens.3. The single-carrier optical spring of claim 1 , wherein the sizes of the first layer of the first plurality of layers and the second plurality of layers are different.4. The ...

STORAGE DEVICE AND METHOD OF OPERATING THE SAME

Provided herein may be a storage device and a method of operating the same. A storage device for protecting the storage device from physical movement may include a nonvolatile memory device, a sensor unit configured to collect information about physical movement of the storage device, and a memory controller configured to perform a device lock operation of protecting data in the nonvolatile memory device, based on a sensor value acquired from the sensor unit. 1. A memory controller in a storage device , comprising:a device lock detection unit configured to output a detection signal related to physical movement of the storage device; anda device control lock unit configured to change an enablement of a device lock mode according to a set command from a host and to perform a device lock operation to protect data in a memory device based on the detection signal after the device lock mode is enabled.2. The memory controller according to claim 1 ,wherein the set command includes information for instructing the device lock mode to be enable.3. The memory controller according to claim 1 ,wherein the memory controller configured to send an enable signal indicating that the storage device is in locked status according to the detection signal.4. The memory controller according to claim 1 ,wherein the memory controller is configured to refrain performing an operation relating to accessing the memory device in response to the detection signal.5. The memory controller according to claim 1 ,wherein the memory controller send an abort signal to the host.6. The memory controller according to claim 5 ,wherein the abort signal indicates that a state of the command provided from the host is ignored.7. The memory controller according to claim 1 , wherein the device lock detection unit configured to collect information about physical movement of the storage device.8. The memory controller according to claim 1 , further comprising: a sensor unit configured to detect physical movement of ...

Method And Apparatus For Correcting Magnetic Tracking Error With Inertial Measurement

A method and apparatus is disclosed for synchronizing a magnetic field transmitter and receiver to resolve phase ambiguity so that phase information for the position and orientation of the receiver may be derived and maintained. A synchronization process allows for the phase information to be initially derived based upon known information from other sources, and then tracked from one measurement to the next. In another embodiment, information from an inertial measurement unit (IMU) is used to determine the phase information or to correct for errors in the determination from receiver data of the position and orientation of a receiver, and prevent such errors from accumulating as the receiver moves away from a transmitter. 1. A method of using an inertial measurement unit (IMU) to correct for error in a measured position vector and orientation of a tracking device containing a receiver in a magnetic tracking system having a transmitter , comprising:receiving at a processor a gravity vector and position vector as measured by the receiver;determining by the processor a true gravity vector from information from the IMU;computing by the processor an angle of geodesic rotation between a gravity vector as measured by the receiver and the true gravity vector as a rotation error quaternion;performing by the processor a spherical interpolation to reduce the angle of geodesic rotation by half to form a position correction quaternion;rotating by the processor the measured position vector about an origin of the tracking space using the position correction quaternion to produce a corrected position vector indicating the true position of the receiver relative to the transmitter; anddirectly composing by the processor the rotation error quaternion with the measured orientation to produce a corrected orientation of the receiver relative to the transmitter.2. A non-transitory computer readable storage medium having embodied thereon instructions for causing a computing device to ...

METHOD FOR CONNECTING TO NETWORK, NON-TRANSITORY STORAGE MEDIUM, AND ELECTRONIC DEVICE

A network connection method includes determining whether an electronic device is moving and obtaining position information of the electronic device from the positioning unit in response to determining that the electronic device is moving. The method also determines whether the electronic device is located within a preset range based on the position information, and accordingly generates a movement path in response to determining that a distance between the electronic device and the wireless device is within a preset value. The method further determines whether the movement path of the electronic device matches with a part of at least one stored path; and switches a state of at least one wireless communication unit in response to determining that the movement path of the electronic device matches with a part of the at least one stored path. A related electronic device and a non-transitory storage medium are also provided. 1. An electronic device for connecting with a wireless device , the electronic device comprising:a gravity sensor;at least one wireless communication unit;a positioning unit;a storage system;at least one processor; and determine whether the electronic device is moving by the gravity sensor or the positioning unit;', 'obtain position information of the electronic device from the positioning unit in response to determining that the electronic device is moving by the gravity sensor or the positioning unit;', 'determine whether a distance between the electronic device and the wireless device is within a preset value based on the position information;', 'generate a movement path according to the position information of the electronic device in response to determining that the distance between the electronic device and the wireless device is within a preset value;', 'determine whether the movement path of the electronic device matches with a part of at least one stored path; and', 'switch a state of the at least one wireless communication unit according ...

METHOD AND APPARATUS FOR OBTAINING RESIDUAL GRAVITY ANOMALY

Disclosed are method and apparatus for obtaining residual gravity anomaly. The method comprises obtaining Bouguer gravity anomaly of a target region, determining a first pre-set range corresponding to each sampling point in the target region, obtaining a first regional field value of each sampling point in the first pre-set range through a surface fitting method based on the coordinate and field value of the sampling point, traversing the target region to obtain first regional gravity anomaly of the target region according to the first regional field values of the sampling points in the target region, and obtaining first residual gravity anomaly of the target region according to the Bouguer gravity anomaly and the first regional gravity anomaly. The residual gravity anomaly thus obtained is more accurate, thus enabling an accurate prediction of an underground geological body. 1. A method for obtaining residual gravity anomaly , comprising:obtaining a Bouguer gravity anomaly in a target region, wherein the Bouguer gravity anomaly comprises coordinates and field values of a plurality of sampling points in the target region;determining a first pre-set range corresponding to each sampling point in the target region;obtaining a first regional field value of sampling points within the first pre-set range corresponding to each sampling point using a surface fitting method based on coordinates and field value of the sampling points;traversing the target region to obtain a first regional gravity anomaly of the target region according to the first regional field value of the sampling point in the target region; andobtaining a first residual gravity anomaly of the target region according to the Bouguer gravity anomaly and the first regional gravity anomaly.2. The method according to claim 1 , wherein said obtaining a first regional field value of each sampling comprises:performing surface fitting based on the coordinate and field value of a sampling point and the coordinates ...

Gradient meter

FIELD: measurement equipment. SUBSTANCE: group of inventions relates to methods and devices to measure gravity gradient, which may be used during exploration of natural resources. Substance: gradient meter comprises: the first accelerometer for generation of the first acceleration signal; the second accelerometer that is distant from the first accelerometer and is designed to generate the second acceleration signal; the first monitoring device with available spatial ratio with the first accelerometer and designed to detect movement of the second accelerometer relative to the first accelerometer and generation of the first correction signal, which is representation of the detected movement; a controller made as capable of modification of the second acceleration signal on the basis of the first correction signal, so that the gravity gradient could be determined using the first acceleration signal and the second acceleration signal. Equipment may be installed on a vehicle. EFFECT: provision of mobility, accuracy and efficiency of gravity gradient measurements. 18 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК G01V 7/16 (13) 2 571 164 C2 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012141153/28, 01.03.2011 (24) Дата начала отсчета срока действия патента: 01.03.2011 (72) Автор(ы): МУАР Кристофер И. (GB) (73) Патентообладатель(и): МУАР Кристофер И. (GB) Приоритет(ы): (30) Конвенционный приоритет: R U 01.03.2010 GB 1003355.3; 25.02.2011 GB 1103268.7 (43) Дата публикации заявки: 10.04.2014 Бюл. № 10 2 5 7 1 1 6 4 (45) Опубликовано: 20.12.2015 Бюл. № 35 (56) Список документов, цитированных в отчете о поиске: RU 2298211 C2, 27.04.2007. US 5341681 А, 30.08.1994. WO 9505615 A1, 23.02.1995. WO 9505614 A1, 23.02.1995. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 01.10.2012 (86) Заявка PCT: 2 5 7 1 1 6 4 R U C 2 C 2 GB 2011/050408 (01.03.2011) (87) Публикация заявки PCT: WO 2011/107792 ...

一种基于微纳芯片的小型化绝对重力仪

一种基于微纳芯片的小型化绝对重力仪，该发明涉及到绝对重力测量领域，旨在避免传统绝对重力仪电源系统以及光路系统复杂的不足，降低绝对重力测量系统的体积和质量，满足小型化重力测量的工程使用需求。一种基于微纳芯片的小型化绝对重力仪，包括980nm激光器、光纤隔离器、波分复用器、微纳芯片、1550nm激光器、光纤环形器、光电探测器、A/D转换器、FPGA芯片、单模光纤、聚苯乙烯小球、毛细管和电动注射器。通过电动注射器输出稳定的聚苯乙烯小球序列，并通过980nm激光捕获并发射聚苯乙烯小球，再通过1550nm激光干涉效应测量当地的绝对重力值。本发明通过微纳芯片、光纤光路结合实现重力测量，其体积和功耗大大降低，可以适用于体积受限的绝对重力测量应用场景。

Method and system for calibrating accelerometer by satellite tracking satellite device

一种采用卫星跟踪卫星装置对加速度计校准的方法和系统，所述方法包括：获取卫星跟踪卫星装置上的原始观测数据；对所述原始观测数据进行坐标转换，得到坐标转换后的观测数据；根据坐标转换后的观测数据和重力梯度观测方程计算得到重力梯度计算值；将所述重力梯度计算值与重力梯度实际观测值做偏差计算，得到偏差值；根据所述偏差值对所述重力梯度实际观测值进行校准。本发明采用卫星跟踪卫星装置获取观测值，并计算得到重力梯度计算值，能够有效解决单纯用重力场模型生成的数据不能达到较好的精度要求的问题，并且避免了受地势约束等的问题，达到对重力加速度计进行高精度校准的目的。

A gradiometer

主要(不仅仅)在自然资源勘探领域，需要测量重力在给定点和区域梯度的绝对值和变化，从而检测地下异常的存在，这种地下异常会产生被测重力值的变化。为了提供一种便携、精确、高效和有成本效益的测量方法，可以将一种重力传感装置(ABCD)配置于各种交通工具，例如(用于示例而非限制为)飞机或直升机，由运动传感装置(EFGH)实施补偿以减小或消除振动和交通工具移动以及结构弯曲对重力和重力梯度测量数据的影响。

Method and device for generating and receiving gravitation waves

FIELD: geophysical engineering. SUBSTANCE: method involves forming longitudinal gravitation waves in vacuum as alternating zones of compression and rarefaction of elastic medium. The elastic medium compression and rarefaction zones are created according to harmonic law as sinusoid or cosinusoid variation of longitudinal vacuum field deformation vector in the direction of gravitation wave propagation due to periodic vacuum density redistribution inside of the working medium by acting upon the working medium with a system of heterogeneous electric and crossing-over magnetic fields. Gravitation wave radiation is amplified due to a system of rotating heterogeneous electric and magnetic crossing-over fields acting upon the working medium and/or as a result of working medium rotation. Communication channel is built from identical gravitation wave source and receiver by additionally specifying modulated carrying oscillation frequency in the system of heterogeneous electric and magnetic crossing-over fields acting upon the working medium of the gravitation wave source with following transformation of gravitation wave into an electromagnetic signal selected in the gravitation wave receiver by filtering variable component of the signal at gravitation wave resonance frequency and detecting the modulated signal. EFFECT: enhanced effectiveness in generating and receiving longitudinal gravitation waves; creating new communication channels; enabled noninvasive metal fatigue control. 4 cl, 28 dwg УЗзЗ$УЗЬСс ПЧ ГЭ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК? ВИ” 2184 384‘ 13) Сл СОлУ\ 7/00 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 2001113321/28, 21.05.2001 (24) Дата начала действия патента: 21.05.2001 (46) Дата публикации: 27.06.2002 (56) Ссылки: КУ 2167432 С1, 20.05.2001. ОЕ 3834885, 19.04.1990. 4$ 3554033 А, 12.01.1971. (98) Адрес для переписки: 107078, Москва, пер. Докучаев, 13, кв.29, В.Е.Пилкину (71) Заявитель: Леонов ...

DEVICE FOR ABSOLUTE GRAVIMETRIC MEASUREMENTS BY ATOMIC INTERFEROMETRY FOR GEOPHYSICAL APPLICATIONS, IN PARTICULAR FOR CONTROL OF HYDROCARBON DEPOSITS

1. Устройство (10) для абсолютных гравиметрических измерений, включающее, в последовательности сверху вниз вдоль вертикального направления, определенного силой тяжести, лазерную систему (13) для генерации лазерных пучков, опорную поверхность (16) для упомянутой лазерной системы (13), ультравакуумную систему (14) для прохождения упомянутых пучков, световозвращающее зеркало (21) для упомянутых пучков, составляющих упомянутую ультравакуумную систему (14), и систему (15) ослабления сейсмических колебаний, при этом система (15) ослабления сейсмических колебаний включает верхнюю пластину (1002), снабженную отверстием (1003), выше которого упомянутое световозвращающее зеркало (21) поддерживается подвешенным посредством по меньшей мере трех металлических пластинчатых пружин (70, 71, 72), при этом первые концы упомянутых трех металлических пластинчатых пружин (70, 71, 72) прикреплены к периферии упомянутой верхней пластины (1002), а вторые концы сходятся выше упомянутого отверстия (1003), соединяясь с упомянутым световозвращающим зеркалом (21), при этом упомянутые три металлические пластинчатые пружины (70, 71, 72) формируют геометрию пружины-противопружины для демпфирования колебаний световозвращающего зеркала (21) вдоль упомянутого вертикального направления, отличающееся тем, что упомянутое устройство для абсолютных гравиметрических измерений также включает средства для выравнивания упомянутого световозвращающего зеркала (21), интегрированные с упомянутой системой (15) ослабления сейсмических колебаний, и средства радиального ограничения между упомянутым световозвращающим зеркалом (21) и упомянутой верхней пластиной (1002), действующие в плоскос РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК G01V 7/00 (13) 2013 131 392 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2013131392/28, 20.12.2011 (71) Заявитель(и): Эни С.п.А. (IT) Приоритет(ы): (30) Конвенционный приоритет: 29.12.2010 IT MI2010A002453 (85) Дата начала ...

Method for determining gravitational field model based on gravity satellite inter-satellite laser ranging system

本发明涉及一种基于重力卫星星间激光测距系统确定引力场模型的方法，属于卫星重力探测技术领域，包括以下步骤：采集原始数据集；对原始数据集进行预处理获得视线方向加速度值、视线方向组合观测值和星间加速度残差；基于视线方向加速度值、视线方向组合观测值和星间加速度残差建立观测方程；解算观测方程，求取引力位球谐系数。本发明基于重力卫星星间激光测距系统获得星间距离及其变化率和星间加速度，再根据牛顿第二运动定律建立观测方程，最后利用最小二乘估算引力位球谐系数。相较于经典利用高低卫星跟踪卫星技术反演方法，本发明无需数值微分解算，能有效避免高频误差放大，从而提高引力场模型解算精度。

Method for searching and controlling hydrocarbons by a complex of geophysical methods

FIELD: measuring. SUBSTANCE: invention relates to the field of using geophysical methods for solving problems of technical and economic optimisation of the algorithms of searching, development of hydrocarbon deposits (HCD) and operation of underground gas storage facilities (UGS). The substance of the invention consists in conducting, for a predetermined period of time, simultaneous ground seismic and gravimetric measurements (measurements of gravity variations) over a network of joint seismic-gravitational stations located in a certain way at the target survey site, followed by joint interpretation of the received data. A conclusion about the presence/absence of hydrocarbons (HC) and the spatial location thereof is made based on the correlation of the dynamic characteristics of the spectral power of the seismic signal on the measured frequencies and the gravitational anomalies. A method recording the parameters of the natural seismic wavefield of the Earth as informative is used as a seismic method. Natural seismic vibrations are recorded in the frequency range from 0.1 to 20 Hz, measured simultaneously over three orthogonal components (Z, N-S, W-E) to exclude interference not related to the underlying surveyed processes, the interference from ground man-made sources is excluded by setting the time of continuous recording of the readings (at least 60 minutes). EFFECT: increase in the accuracy of detection and economic efficiency of development of hydrocarbon deposits and operation of UGS by determining and monitoring the spatial distribution of the hydrocarbon content in productive formations. 4 cl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 758 148 C1 (51) МПК G01V 11/00 (2006.01) G01V 1/00 (2006.01) G01V 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G01V 1/003 (2021.02); G01V 7/00 (2021.02); G01V 11/00 (2021.02); G01V 2210/6165 (2021.02) (21)(22) Заявка: 2020133948, 28.10.2020 (24) Дата начала ...

Systems and methods with application of tuned differential gravimeter

FIELD: measurement equipment. SUBSTANCE: systems and methods are proposed to determine a property, for instance, density of a geological formation on the basis of the Einstein gravity theory. The difference of gravity potential is determined between two positions of the geological formation with the help of measurement of frequency shift in radioactive radiation passing from the source to an absorber of the differential gravimeter. The differential gravimeter may be a part of a well instrument. The detected difference of gravity potential may be used to determine the property of a geological formation. EFFECT: provision of the possibility to detect density of a geological formation in process of drilling under conditions of high temperatures, pressures, impact loads and vibration. 15 cl, 9 dwg, 1 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК G01V 7/00 (13) 2 572 642 C1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014129804/28, 19.12.2012 (24) Дата начала отсчета срока действия патента: 19.12.2012 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ЛУЛИНГ Мартин Г. (FR), ЛЕВИТТ Бен (US), ПОЙЦШ Мартин (US), БОТТО Танкреди (US) (45) Опубликовано: 20.01.2016 Бюл. № 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 21.07.2014 (86) Заявка PCT: US 2012/070453 (19.12.2012) 2 5 7 2 6 4 2 (56) Список документов, цитированных в отчете о поиске: US 20100161226A1, 24.06.2010. GB 2353100A, 14.02.2001. GB 2377490A, 15.01.2003. US 20100299102A1, 25.11.2010. RU 2206910C2, 20.06.2003. RU 2065615C1, 20.08.1996. R U (73) Патентообладатель(и): ШЛЮМБЕРГЕР ТЕКНОЛОДЖИ Б.В. (NL) 21.12.2011 US 61/578,846 2 5 7 2 6 4 2 R U WO 2013/096362 (27.06.2013) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СИСТЕМЫ И СПОСОБЫ С ПРИМЕНЕНИЕМ НАСТРАИВАЕМОГО ДИФФЕРЕНЦИАЛЬНОГО ГРАВИМЕТРА (57) Реферат: Использование: для определения плотности ...

Apparatus for controlling battery output with immersion detection means

The present invention relates to a battery output control device with a flooding detection means and, more specifically, to a battery output control device with a flooding detection means which blocks power of a battery when a battery use device and the battery flood so as to prevent malfunctions of the battery and the battery use device. According to the present invention, the battery output control device with the flooding detection means detects flooding through a flooding detection unit connected to a control unit so as to block power of the battery in a flooding situation and sends a stop signal before blocking through a communication line so as to normally shut down equipment.

Direct displacement converter for micromechanical devices (displacement sensor)

FIELD: measuring equipment. SUBSTANCE: invention can be used in accelerometers or gyroscopes to measure small shifts of a test body under action of accelerations. Forward motion transducer for micromechanical devices consists of a housing and a movable part configured to move in the housing along the force direction. To measure the mutual position of the body and the movable part in the force direction, a probe and a substrate of the main tunnel microscope are mounted on them, wherein one of these elements is mounted on a carriage which is movable in a plane perpendicular to the direction of action of the force. To stabilize in this plane the mutual position of the probe and substrate of the main tunnel microscope, additional tunneling microscopes of carriage control are introduced. EFFECT: high sensitivity of forward displacement transducer. 1 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 713 964 C1 (51) МПК G01V 7/00 (2006.01) G01B 7/02 (2006.01) G01C 19/56 (2012.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G01V 7/00 (2019.08); G01B 7/02 (2019.08); G01C 19/56 (2019.08) (21)(22) Заявка: 2019121463, 05.07.2019 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Попов Анатолий Борисович (RU) Дата регистрации: 11.02.2020 Приоритет(ы): (22) Дата подачи заявки: 05.07.2019 (45) Опубликовано: 11.02.2020 Бюл. № 5 2 7 1 3 9 6 4 R U (54) Прямой преобразователь перемещений для микромеханических приборов (датчик перемещений) (57) Реферат: Изобретение может быть использовано в туннельного микроскопа, причем один из этих акселерометрах или гироскопах для измерения элементов установлен на каретке, выполненной малых сдвигов пробного тела при действии с возможностью перемещения в плоскости, ускорений. Прямой преобразователь перпендикулярной направлению действия силы. перемещений для микромеханических приборов Для стабилизации в этой плоскости взаимного состоит из корпуса и подвижной части, ...

Digital modeling simulation method for gravity gradiometer of rotating accelerometer

本发明公开一种旋转加速度计重力梯度仪数字建模仿真方法，基于重力梯度仪的测量原理与结构，综合考虑重力梯度仪内部加速度计的径向安装误差、高度安装误差、输入轴失准误差、电路增益不匹配误差、线性标度系数不匹配误差、零偏不匹配误差、加速度计二阶误差系数、噪声、环境物体自梯度等因素，能够模拟真实旋转加速度计重力梯度仪。它能解决重力梯度仪研发中，一些关键技术(比如自梯度标定、补偿，加速计二阶误差系数在线补偿，加速度计安装误差在线补偿，加速度计线性标度系数在线补偿，故障诊断等)的实验验证问题。

Tensor invariant theory-based satellite gravity gradient gross error detection method

本发明公开了一种基于张量不变理论的卫星引力梯度粗差探测方法，该方法包括整体探测卫星引力梯度观测张量粗差；独立探测卫星引力梯度观测张量各分量粗差。本发明公开的卫星引力梯度观测值粗差探测的单次差方法，以张量不变理论为基础，将卫星引力梯度观测值的张量不变特性以及第二不变量和第三不变量的放大效应应用于卫星引力梯度观测值的粗差探测中，实现了卫星引力梯度观测张量整体粗差的可靠性探测；通过引入先验的重力场模型，可独立实现引力梯度张量主对角线和非对角线六个分量的粗差探测。

A kind of quartz pendulous reed and metal spring Combined heavy force sensor

本发明涉及一种零长弹簧和石英摆片组合式重力敏感器，该敏感器至少包括一个弹簧调节部件、一根竖直悬挂的零长弹簧、一片悬挂在弹簧下端的水平工作的石英摆片、一个与摆片敏感质量一体的磁力动圈和提供闭环磁场的永磁体和软磁激励环，摆片敏感质量上、下表面与激励环上的金属定极板组成差分敏感电容。本敏感器解决了传统轴对称型重力敏感器结构复杂、装配难度大、体积和质量大、成本高的问题，本敏感器结合了零长弹簧和石英摆片的优点，其结构简单，灵敏度高，便于量产和携带，有较高的性价比和广阔的市场前景。

Angular motion error compensation device and method for gravity gradiometer of rotating accelerometer

本发明公开一种旋转加速度计重力梯度仪角运动误差补偿装置及方法，该装置主要包括角运动检测模块，实时检测重力梯度仪的角运动；参考信号产生模块，实时产生正交幅度调制载波；角运动误差传递系数处理模块，根据反馈的补偿后的重力梯度仪信号，实时微调角运动误差传递系数；角运动误差补偿信号产生模块，根据输入的重力梯度仪角运动信号，正交幅度调制载波，角运动误差传递系数，产生角运动误差补偿信号；补偿运算模块，对含有角运动误差的重力梯度仪信号进行补偿；离心梯度检测模块能够检测重力梯度仪受到的离心梯度，当装置工作在标定模式时，离心梯度检测模块的输出用于标定重力梯度仪标度系数。

Method of determining focal zones of potential earthquakes in the earth's crust

FIELD: geophysics.SUBSTANCE: invention relates to geophysics, namely to seismology, and can be used for detailed seismic zoning of territories. Selection of focal zones of potential earthquakes in the earth's crust is performed by mathematical processing of 3D seismic tomography and gravity prospecting data in the same nodes of the spatial grid covering the investigated area.EFFECT: possibility of determining the location of potential focal zones of earthquakes in the earth's crust.1 cl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК G01V 1/00 G01V 1/28 G01V 7/00 G01V 9/00 (11) (13) 2 690 189 C1 (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G01V 1/003 (2019.02); G01V 1/008 (2019.02); G01V 1/288 (2019.02); G01V 2210/1232 (2019.02); G01V 7/00 (2019.02) (21)(22) Заявка: 2018128744, 07.08.2018 07.08.2018 Дата регистрации: 31.05.2019 Приоритет(ы): (22) Дата подачи заявки: 07.08.2018 (56) Список документов, цитированных в отчете о поиске: Спичак В. В. "Выделение (45) Опубликовано: 31.05.2019 Бюл. № 16 (54) Способ выделения очаговых зон потенциальных землетрясений в земной коре (57) Реферат: Изобретение относится к области геофизики, в одних и тех же узлах пространственной сетки, а именно к сейсмологии, и может быть покрывающей исследуемую область. Технический использовано для детального сейсмического результат обеспечение возможности районирования территорий. Выделение очаговых определения расположения потенциальных зон потенциальных землетрясений в земной коре очаговых зон землетрясений в земной коре. 10 осуществляют путем математической обработки ил. данных 3D-сейсмотомографии и гравиразведки R U 2 6 9 0 1 8 9 потенциальных очагов землетрясений по геофизическим данным", Физика Земли, 2016, номер 1, с. 47-58. SU 1810867 A1, 23.04.1993. SU 1831692 A3, 30.07.1993. RU 2114448 C1, 27.06.1998. KG 676 C1, 30.07.2004. KR 2017114494 A, 16.10.2017. Стр.: 1 C 1 C 1 Адрес для переписки ...

Method for three-dimensional seismic zoning of the lithosphere

FIELD: seismology.SUBSTANCE: invention relates to seismology and can be used for selection of focal zones of potential earthquakes. Essence: according to seismic tomography and gravimetric data in the same nodes of the spatial grid covering the investigated region, models of velocities of transverse seismic waves and density are constructed. Space velocities of transverse seismic waves and density from nodes of the regular grid to hypocenters of past earthquakes are spatially interpolated. Shift modulus is calculated from values of velocities of transverse seismic waves and density in nodes of spatial grid, as well as hypocenters of past earthquakes. Artificial neural network "with teacher" is trained. Neural network input is geographic coordinates of hypocenters of past earthquakes and values of shear modulus calculated in them, and magnitude of output is magnitude of corresponding earthquakes. Then, using the trained artificial neuron network, the probable magnitudes of potential earthquakes are predicted in the nodes of the spatial grid which covers the considered volume of the medium.EFFECT: technical result is determination of probable magnitudes of potential earthquakes.1 cl, 1 tbl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 730 419 C1 (51) МПК G01V 1/28 (2006.01) G01V 7/00 (2006.01) G01V 9/00 (2006.01) G01V 11/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G01V 1/008 (2020.02); G01V 1/28 (2020.02); G01V 7/00 (2020.02); G01V 9/00 (2020.02); G01V 11/00 (2020.02) (21)(22) Заявка: 2019140424, 09.12.2019 09.12.2019 Дата регистрации: 21.08.2020 Приоритет(ы): (22) Дата подачи заявки: 09.12.2019 (45) Опубликовано: 21.08.2020 Бюл. № 24 R U 2 7 3 0 4 1 9 C 1 Адрес для переписки: 125368, Москва, а/я 84, А.А. Щитову (54) Способ трехмерного сейсмического районирования литосферы (57) Реферат: Изобретение относится к области сейсмологии вычисляют модуль сдвига. Производят обучение и может быть ...

Gravitational Gradiometer

一种用于测量准静态重力梯度的仪器，包括：张紧地在两端固定的弹性条带；感测装置，设置其用以探测由于重力场作用在所述条带上引起的条带偏离未扰动位置的横向位移，并产生代表该位移的信号；与所述感测装置连接的输出装置，该装置对所述位移信号响应以产生一输出信号，此输出信号是重力场的重力梯度张量的函数；在其中，所述条带沿其长度具有非均匀的刚度分布和/或质量分布，使得在使用中，条带的由于重力场的重力梯度引起的位移响应得到加强，以及/或者条带的由于重力场的绝对重力加速度引起的位移响应受到抑制。

Improvements in or relating to instruments for and methods of airborne measuring of derivatives of the vertical component of the earth's gravity field

846,201. Electric gravimeters. BOITNOTT, B. D. Oct. 1, 1958 [Oct. 1, 1957], No. 31405/58. Class 40 (1). Apparatus for determining the vertical rate of change of the earth's gravity field comprises an evacuated double chamber 1, 2, maintained vertical gyroscopically or by free suspension, containing three horizontal electrodes 9, 10, 11 and a cloud of mercury particles produced by applying a voltage to electrodes 5, 6 in the base of the chamber, the mercury vapour being ionized by radio-active material 22 located centrally outside the chamber, whereby, when the mercury particles are allowed to fall under gravity, the difference in the charge imparted to electrodes 11, 10 in unit time is indicative of the difference in the value of g. A cylindrical screening electrode 19 prevents the falling mercury particles from spreading out. Auxiliary electrodes 15, 16 at the top and bottom of the chamber may be momentarily supplied with a P.D. which will cause the mercury vapour to rise, so that the measurements can be repeated. The supply and measuring leads are interconnected via timing devices, and the whole apparatus may be airborne.

Atom interferometer with adaptive launch position

Launching atoms in an atom interferometer. The predicted trajectory of atoms for measurememnt in the atom interferometer after launch is determined, the positionof launch of the atoms within a volume of a Raman laser beam is contrlled based on the predicted trajectory, and measurements from the atoms are obtained. The atom interferometer is configured as an inertial sensor.

COLD ATOMIC INTERFEROMETRIC SENSOR

MEASUREMENT BY ATOMIC INTERFEROMETRY

Improvements to devices for measuring the acceleration of gravity

Method and device for measuring the amplitude and frequency of gravity waves or interface movements.

System and method for surveying underground density distributions

A method for geographical surveying includes the steps of determining an observation grid (24) comprising observation points (22) above a solution (16) volume in the ground; making gravitational measurements at the observation points (22) over a survey area; compiling a matrix having elements relating a set of gravitational accelerations and gravity gradient values at the points to the mass values for volume elements in the solution volume (16); and calculating the three-dimensional density distribution of the volume under the survey area based on the gravitational measurements and the inverse of the matrix. By measuring the magnetic field and gradient at the observation points, the three-dimensional magnetic susceptibility distribution of the volume under the survey area can be determined.

Laser equipped multipurpose sensor for geological research - measures gravity using laser levitation method and homogeneity using laser interferometry

A portable measurement sensor (1) for mineral research measures discontinuities, defects and variations or homogeneity of materials. It comprises a laser transmitter (10) and detectors together with ultrasonic and infrared equipment (11). A device for gravity measurements uses a laser beam to lift fine particles, pref. metallised, inside a partially evacuated enclosure. The height to which the particles are lifted depends on the gravity to which they are subjected. Another device (9) determines homogeneity by bringing a helium saturated atmosphere into contact with the surface of the material investigated. Laser interferometry gives the thickness of the liquified gas film on the surface.

A kind of 3 axis MEMS gravimeter

本发明提供了一种三轴MEMS重力仪，包括：敏感探头、位移传感结构，位移检测电路，腔体和水平调节基座；敏感探头包括：两个第一振子单元、一个第二振子单元和支撑结构，第一振子单元的敏感轴与第二振子单元的敏感轴相互正交；第一振子单元包括：正摆结构、倒摆结构、第一检验质量和第一外框，第一检验质量通过正摆结构和倒摆结构与第一外框相连，第一外框与腔体固联；第二振子单元包括：负刚度弹簧、正刚度弹簧、第二检验质量和第二外框，第二检验质量通过正刚度弹簧和负刚度弹簧与第二外框相连，第二外框与腔体固联；位移传感结构设置在第一检验质量和第二检验质量的表面；位移检测电路用于检测位移传感结构的位移信号；水平调节基座用于调节腔体的水平。

Cross-component superconducting gravity gradiometer with improved linearity and sensitivity and method for gravity gradient sensing

A cross-component superconducting gravity gradiometer sensitive to off-diagonal components of the gradient tensor includes, for each gradient axis, a pair of closely matched angular accelerometers coupled by superconducting circuitry, including sensing circuits designed to minimize the sensitivity of the instrument to angular acceleration of the platform at which the angular accelerometers are mounted; and a mode-splitting circuitry designed to reduce a nonlinear coupling of angular acceleration to the output of the gravity gradiometer and to attain the operability of the instrument in a broader range in the frequency domain.

System and method for surveying underground density distributions

Miniature freefall mechanism

A system for measuring differential gravity at two points is disclosed. In the illustrative embodiment, the system uses a pair of graspers which each repeatedly grasp, raise, and drop a test mass. The accelerations of the two free-falling test masses are monitored using optical interferometry. An output signal is provided that is based on a differential acceleration of the two test masses.

Gravitational gradiometer

FIELD: instrumentation. SUBSTANCE: present invention relates to a device for direct measurement of components of a gravitational gradiometer tensor, namely of nondiagonal components of the tensor, and to a method of measuring the said tensor components, and refers to navigation and exploration (for example, detection of cavities), to exploration works, to underwater navigation and exploration, ground and sea archaeology, medicine and space exploration (for example, to obtain density maps of asteroids and other orbital bodies of the Solar system). The proposed group of inventions includes a device to measure quasi-static gravity gradients comprising a stressed flexible tape being held by both ends, recording units intended to detect the transverse shift of the tape from an undisturbed position under the influence of the gravitational filed affecting the said tape and to generate a signal indicating the shift and output units connected to the said recording units and generating an output signal in response to the said signal, the output signal is the function of the tensor of the gravitational field gravity gradient; the tape is characterised by uneven distribution of stiffness and/or mass along its length, so in the course of operation the response of the tape shift is amplified by the gravitational field gravity gradient and/or the response of the tape shift is suppressed by the absolute gravity acceleration of the gravitational field, the method to measure quasi-static gravity gradients is proposed as well. EFFECT: provision for devices allowing for accurate and absolute measurements of different tensor components of gravity gradient T ij , ensuring maximal sensitivity of a gradiometer to the gravitational field gravity gradient. 25 cl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК G01V 7/00 (13) 2 517 954 C2 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011127380/28, 25.11.2009 (24) Дата ...

Systems and methods for processing geophysical data

A method of processing geophysical data from a survey of a surveyed region of the earth to provide a representation of the underlying geology of said surveyed region, the method comprising inputting 2-D seismic data for said surveyed region, generating a first representation depicting a plurality of reflection interfaces of said underlying geology of said surveyed region using said input seismic data, inputting potential field data for said surveyed region, generating a second representation depicting a plurality of density interfaces of said underlying geology of said surveyed region using said input potential field data; combining said representation of said plurality of density interfaces with said representation of said plurality of reflection interfaces to reposition at least one of said plurality of reflection interfaces and generating a final representation depicting said underlying geology of said surveyed region using said combined first and second representations.

A gravity gradiometer

The present invention provides a method of tuning properties of a gravity gradiometer for measuring components of the gravity gradient tensor. The gravity gradiometer comprises a pair of first and second transversely arranged sensor masses that are arranged for movement about an axis and relative to each other in response to a gravity gradient. The gravity gradiometer further comprises first and second capacitors for sensing and influencing the movement of the first and second sensor masses. The method comprising applying a bias voltage to at least one of the capacitors for generating an electrostatic force which acts on one of the sensor masses and thereby influences the movement of that sensor mass.

Passive ranging techniques in borehole surveying

A method for determining the location of a target subterranean structure from within an adjacent borehole is disclosed which uses first and second gravity measurement devices disposed at corresponding first and second positions in the adjacent borehole and a magnetic field measurement device disposed one of the first and second positions. The method includes processing a total local magnetic field, a reference magnetic field, and a local azimuth determined using the gravity measurement devices to determine a portion of the total magnetic field attributable to the subterranean structure multiple points in the adjacent borehole. The location of the subterranean structure is determined using the portion of the total magnetic field attributable thereto. A system adapted to execute the disclosed method and a computer system including computer-readable logic configured to instruct a processor to execute the disclosed method are also provided.

Gravity survey data processing

This invention relates to improved techniques for processing potential field measurement data from airborne surveys such as gravity surveys, and to improved techniques for data acquisition which are enabled by the improved data processing techniques. We describe a method of processing measured potential field data from a potential field survey of the earth to determine map data for mapping said field, the method comprising: inputting said measured potential field data, said measured potential field data comprising data defining a plurality of potential field measurements and associated positions, each said position defining a position of a said potential field measurement in three dimensions; determining a plurality relationships between said potential field measurements and said positions, each said relationship relating a said potential field measurement to a function of a said associated position in three dimensions multiplied by a field mapping parameter; and determining a substantially self-consistent set of said field mapping parameters for said plurality of relationships to thereby determine said map data.

Stratigraphic function

A method and apparatus for gravity gradient logging

A gravimetry survey of an earth formation is conducted by continuously traversing said earth formation with a gravity logging tool 10 having a column of fluid within the tool 10. A first pressure difference along a first interval within said column of fluid is then measured by a first detector 13, and a second pressure difference along a second interval within said column of fluid is measured by a second detector 14. The difference between the output of the first and second detectors 13, 14 is then measured by a third detector 15 to produce an output representative of the gravity gradient along said earth formation between said first and second intervals.

Gravity meter

Gravitational method and apparatus for measuring true vertical depth in a borehole

A method for measuring true vertical depth in a borehole, the method including: measuring gravitational acceleration in the borehole; and determining the true vertical depth from the measurement.

Gravity measurements using seismic streamers

A technique facilitates collection and use of data on subterranean formations. The technique comprises obtaining gravity measurements through the use of seismic streamers. At least one streamer is provided such that each streamer has multiple sensors, e.g. accelerometers. The at least one streamer is towed with a tow vessel, and gravity data are accumulated via the multiple sensors during towing.

For driving and/or detecting the opto-mechanical device of the movement of mechanical organ

一种用于驱动和/或检测机械元件的运动的光机械器件。光机械器件包括支座(20)，支座上具有：锚固到支座并且设计成相对于支座运动的至少一个机械元件(26)，以及驱动和/或检测机械元件的运动或运动频率变化的器件，其中，驱动和/或检测装置的至少一部分在机械元件和支座之间被布置在机械元件的全体或一部分下方，其中，驱动和/或检测装置包括相对于支座固定的光学器件(21)，光学器件包括在距机械元件确定距离处被布置在机械元件的全体或一部分下方的至少一个光波导(22)，且至少一个光波导设计成传播至少一个与机械元件相互作用的具有给定波长的光波，且其中，光波导在距机械元件确定距离处，使得光波导的渐逝场与机械元件相互作用。

Array type land time-varying gravity and gradient field observation method and system

本发明涉及一种阵列式陆地时变重力和梯度场的观测方法和系统，该方法设置特定的观测墩阵列和基准点，结合绝对重力测量步骤、定位步骤、相对重力测量步骤以及数据处理步骤，获取各测量点的重力点值、重力水平梯度和重力垂直梯度，本发明通过更高效的场地综合测量方式，得出高精度的重力场信号，并且更为精确地识别特定时空尺度的场源重力信号。

Based on strap down inertial navigation/GPS combination subsidiary level angular movement isolation Gravimetric Method

本发明涉及一种基于捷联惯性/GPS组合辅助水平角运动隔离的重力测量方法，包括如下步骤：在实测过程中，重力仪的IMU外部采用双轴稳定平台隔离载体的水平角运动，在动态条件下经导航解算产生水平施矩量来控制平台跟踪地理水平；在重力测量数据后期处理过程中，结合DGPS信息完成对残余水平误差的Kalman滤波估计，将IMU的比力测量值通过姿态旋转到地理坐标系方向。本发明在实测过程中，通过双轴惯性稳定平台控制，使IMU基本保持地理水平位置，在对实测IMU数据的后期处理过程中，结合高精度的差分GPS信息完成对残余水平误差的Kalman滤波估计，同时能够实现对重力敏感器元件误差的估计和补偿，从而提高重力测量的动态环境适应性和重力测量精度。

Supplemental referencing techniques in borehole surveying

A method for surveying a borehole is disclosed which uses first and second gravity measurement devices disposed at corresponding first and second positions in the borehole and a supplemental reference measurement device disposed at the first position. Exemplary supplemental reference measurement devices include magnetometers and gyroscopes. The method includes determining a reference borehole azimuth at the first position using the supplemental reference measurement device, determining a change in borehole azimuth between the first and second positions using the first and second gravity measurement devices and determining the borehole azimuth at the second position by applying the change in borehole azimuth the reference azimuth. A system adapted to execute the disclosed method and a computer system including computer-readable logic configured to instruct a processor to execute the disclosed method are also provided.

Gravity gradiometer

A gravity gradiometer and method for forming a pivot flexure web for a gradiometer is disclosed. The gradiometer has measurement bars 41, 43 supported in housings 45 and 47 and transducers 71 for measuring movement of the bars to provide an indication of the gravity gradient tensor. The bars 41, 43 are mounted on flexure webs. The webs are formed in separate elements to the housing and bars.

Gravitational gradiometer

Apparatus for the measurement of quasi-static gravity gradients comprising: a flexible ribbon held under tension at both ends; sensing means arranged to detect the transverse displacement of the ribbon from an undisturbed position due to the gravitational field acting on said ribbon and to generate a signal representing the displacement; and output means coupled to said sensing means and responsive to said displacement signal to generate an output signal which is a function of the gravitational gradient tensor of the gravitational field; wherein the ribbon has a non- uniform rigidity profile and/or mass profile along its length such that, in use, the displacement response of the ribbon due to the gravitational gradient of the gravitational field is enhanced and/or the displacement response of the ribbon due to the absolute gravitational acceleration of the gravitational field is suppressed.

Continuous gravity gradient logging

Detector of dynamic gravitational force gradient fields

The invention is an instrument for detecting and measuring dynamic gravitational force gradient fields having a characteristic frequency and includes a body of elastic material having distributed mass including a dynamic mass quadrupole moment responsive to dynamic gravitational force gradients by the excitation of a mechanical vibrational resonant mode in the body of elastic material. The resonant mode has a vibration node in the body of elastic material whereat the body is supported. An electrical output is provided by means of at least one piezoelectric transducer coupled to the body which in conjunction with the aforementioned vibrational resonant mode forms an electromechanical circuit which is resonant at a selected frequency corresponding to the characteristic frequency of the dynamic gravitational force gradient.

A kind of low star tracking satellite gravitational field measurement performance Analytic Calculation Method

一种低低星星跟踪卫星重力场测量性能解析计算方法，获取低低星星跟踪重力卫星系统参数；计算重力卫星载荷测量误差对地球引力非球形摄动位功率谱的影响，进而得到反演重力场模型的位系数阶误差方差；与Kaula准则给出的位系数阶方差比较；计算反演重力场模型的大地水准面阶误差及其累积误差、重力异常阶误差及其累积误差；将计算得到的重力场测量有效阶数、大地水准面阶误差及其累积误差、重力异常阶误差及其累积误差汇总，即为低低星星跟踪重力场测量性能。本发明可以快速、定量评估重力场测量效果，获取重力卫星系统参数对重力场测量性能的影响规律，避免了卫星重力场测量数值模拟所带来的计算时间长、无法获取系统参数影响规律等缺陷。

Gravimetric measurement method and system implementing the method

The invention relates to a method for measuring a gravitational field comprising at least two steps. A first step (101) uses at least one measurement antenna to define a table of measurements representing the gravitational field generated in the coverage area of the antenna, said antenna being made up of a plurality of gravimetric sensors, each gravimetric sensor being made up of at least one high-resolution three-axis gravimeter. A second step (102) defines an image of mass density distribution in the coverage area of the antenna by inverting the gravitational field measured and contained in the table of measurements. The invention also relates to a system implementing the method such as described in the claims.

Gravitational wave recorder

The invention relates to gravitational-wave astronomy, in particular to recording gravitational waves. In order to increase the efficiency, mirrors are arranged at an angle of 45° with respect to the internal side of a system. A second pair of tunnels, whose ends rest against a resonator, is arranged away from the tunnel ends in a perpendicular direction thereto. Mirrors whose plane is perpendicular with respect to sunbeams are mounted on the surface of said resonator which is made of a solid material and whose length and width are less the half-gravitational wave. The length of each straight tunnel must be by two times greater than the resonator length and width. In order to save the surface area used for arranging a square, additional mirrors are arranged at an angle 135° with respect to the already mounted mirrors on the ends of L-shaped tunnels, said resonator being arranged inside the system and provided with the mirrors whose plane is perpendicular to sunbeams and which are mounted on the surface thereof.

Water depth inversion method and device and computer readable storage medium

本发明提供了一种水深反演方法、装置和计算机可读存储介质。所述水深反演方法包括：确定预设的当前密度差；基于重力异常公式和重力正演模型，确定针对研究区的水深模型的目标函数，所述重力异常公式指示重力异常包括长波参考场部分和短波残差场部分，所述短波残差场部分包括密度差参数；利用所述目标函数，确定所述当前水深模型，以便获得多个水深模型，其中在所述当前水深模型中，所述当前密度差作为所述密度差参数；基于所述多个水深模型，确定最优水深模型。本发明实施例的水深反演方法和装置基于研究区进行，构建目标函数，从多个水深模型中确定最优水深模型，提高了水深反演的可信度，改善了反演效果，从而节省了勘探成本，降低了勘探风险。