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21. 发明授权

US11634866B2 Apparatus for measuring the dewatering of a paper machine at different points of the wet end and a method for implementing it 有权
公开(公告)号：US11634866B2
公开(公告)日：2023-04-25
申请号：US16483001
申请日：2018-01-25
申请人： RUNTECH SYSTEMS OY
发明人： Juha Karvinen
IPC分类号： D21G9/00 , B01D19/00 , D21F1/48 , D21F1/66 , G01F1/002 , G01F15/08 , G01F23/14
摘要： An apparatus for measuring dewatering in the wet end of a paper machine includes a measuring receptacle functioning at normal air pressure, in which receptacle the amount of the water of the negatively-pressurized dewatering points of the paper machine is measured by means of a pressure-difference transmitter and of a measuring weir.

22. 发明授权

US11624756B2 Optical fiber flow velocity measuring apparatus and method integrating high and low ranges 有权
公开(公告)号：US11624756B2
公开(公告)日：2023-04-11
申请号：US17451231
申请日：2021-10-18
申请人： Laser Institute of Shandong Academy of Science
发明人： Zhen Li , Jiqiang Wang , Yuhui Feng , Jiamin Wang , Tongyu Liu , Lin Zhao , Moyu Hou , Yuan Liu , Guofeng Dong
IPC分类号： G01P5/26 , G01F1/002
摘要： Disclosed is an optical fiber flow velocity measuring apparatus and method integrating high and low ranges. The apparatus includes an integrated optical fiber flow velocity sensor, the integrated optical fiber flow velocity sensor includes a sensor body; a fluid channel, a fluid through hole, a full-pressure channel, a static-pressure channel, a low-pressure chamber and a high-pressure chamber are provided inside the sensor body; a first optical fiber sensing element is provided between the low-pressure chamber and the high-pressure chamber; a second optical fiber sensing element is provided in the fluid through hole and is perpendicular to a flow direction of a fluid to be measured; the first optical fiber sensing element and the second optical fiber sensing element are sequentially connected in series through a single-mode optical fiber; both ends of the single-mode optical fiber are connected into a wavelength division multiplexer; a pump light source is connected with the wavelength division multiplexer through a common optical fiber; an optical fiber grating demodulator is connected with the wavelength division multiplexer through a common optical fiber; and a flow velocity arithmetic unit is electrically connected with a optical fiber grating demodulator. It's an object of the present disclosure to solve the problems that the electric circuit is too complicated and that it is not easy to integrate in one apparatus when flow velocity conversion devices based on different principles are integrated.

23. 发明授权

US11525317B2 Open channel flow from multiple pressure sensors 有权
公开(公告)号：US11525317B2
公开(公告)日：2022-12-13
申请号：US16912383
申请日：2020-06-25
申请人： Halliburton Energy Services, Inc.
发明人： Mathew Dennis Rowe
IPC分类号： E21B21/08 , E21B21/10 , G01F1/002 , G01F1/36 , G05D7/06
摘要： A fluid flow system may comprise an input line connected to a drilling system, one or more fluid flow lines connected to the input line, and an output line connected to the one or more fluid flow lines. The system may further include one or more valves disposed in each of the one or more fluid flow lines and one or more pressure sensors disposed in each of the one or more fluid flow lines. A method for controlling a fluid flow system may comprise moving a drilling fluid from a borehole into an input line of the fluid flow system, directing the drilling fluid through the input line into a fluid flow line, measuring a first pressure at a first pressure sensor in the fluid flow line, and measuring a second pressure at a second pressure sensor in the fluid flow line.

24. 发明授权

US11300430B2 Method for irrigating farmland 有权
公开(公告)号：US11300430B2
公开(公告)日：2022-04-12
申请号：US16304447
申请日：2016-06-30
申请人： China Institute of Water Resources and Hydropower Research
发明人： Shaohui Zhang , Di Xu , Wei Dai , Meijian Bai , Qunchang Liu , Fuxiang Li
IPC分类号： G01F1/00 , G01F23/00 , G01F1/002
摘要： A method for acquiring a canal flow rate, comprising: measuring an actual measure value of an upstream water depth and an actual measure value of a downstream water depth of a target canal; presetting the upstream canal flow rate and surface water infiltration rate of the target canal, and respectively acquiring preset values of each; substituting the actual measured value of the upstream water depth, the preset value of the upstream canal flow rate, and the preset value of the surface water infiltration rate into Saint-Venant equations, so as to solve the equations and obtain a downstream water depth simulation value of the target canal; when the relative error between the downstream water depth simulation value and the actual measured value of the downstream water depth is less than or equal to the preset threshold value, acquiring a viable upstream canal flow rate and a viable surface water infiltration rate; otherwise, optimizing the preset value of the upstream canal flow rate and the preset value of the surface water infiltration rate, and repeating the described process until the relative error between the two is less than or equal to the preset threshold value, so as to acquire the two viable results and acquire the canal flow rate at any measurement point of the target canal.

25. 发明公开

US20240344863A1 MULTIPOINT RADAR FLOW VELOCITY METER, BRAINY RTU, AND RIVER FLOW MEASUREMENT SYSTEM 审中-公开
公开(公告)号：US20240344863A1
公开(公告)日：2024-10-17
申请号：US18633640
申请日：2024-04-12
申请人： MIREROTACK CO., LTD
发明人： Seung Kyu LEE
IPC分类号： G01F1/663 , G01F1/002
CPC分类号： G01F1/663 , G01F1/002
摘要： Provided is a flow measurement system that creates distance information and flow velocity information of each of a plurality of measurement areas in a Field of View (FOV) zone of the surface of a river using radar electromagnetic waves by means of a multipoint radar flow velocity meter and that calculates a flow rate using the distance information and flow velocity information of each of the plurality of measurement areas, and meteorological observation information, level information, etc. of a river by means of an RTU.

26. 发明公开

US20240288290A1 APPARATUS FOR MONITORING FLUID FLOW IN A PIPE USING ELECTROMAGNETIC VELOCITY TOMOGRAPHY 审中-公开
公开(公告)号：US20240288290A1
公开(公告)日：2024-08-29
申请号：US18660545
申请日：2024-05-10
申请人： ENERCORP ENGINEERED SOLUTIONS, LLC
发明人： Gary Lucas , Ogheneochuko Obie
IPC分类号： G01F1/58 , G01F1/002 , G01F1/60 , G01F1/74
CPC分类号： G01F1/588 , G01F1/584 , G01F1/586 , G01F1/60 , G01F1/74 , G01F1/002
摘要： Apparatus for monitoring fluid flow in a pipe using electromagnetic velocity tomography An apparatus for monitoring a fluid flow in a pipe using electromagnetic velocity tomography (EVT), the apparatus comprising a pipe defining a flow conduit, a coil system comprising electrically conductive wires located externally of the flow conduit for generating composite magnetic fields within the flow conduit, a magnetic signal driving circuitry electrically connected to the coil system which is arranged to pass electrical current through the coil system thereby to transmit a magnetic field from the coil system into the flow conduit, a plurality of measurement electrodes located around the flow conduit for detecting voltages induced in an electrically conducting fluid flowing thorough the magnetic field, and a signal processing circuitry electrically connected to the plurality of measurement electrodes for receiving flow induced voltage signals from the electrodes, wherein the plurality of measurement electrodes is comprised in a flexible printed circuit board which is positioned circumferentially around the pipe, the printed circuit board comprising a first lamina, the first lamina comprising an electrically conductive layer which is patterned to form an annular serial array of mutually spaced measurement electrodes around the pipe which are separated from the flow conduit by at least a portion of a thickness of the pipe, wherein the pipe is comprised of an electrically non-conductive material whereby when, in use, an electrically conductive fluid is present in the flow conduit, each measurement electrode and a respective areal portion of the pipe thereunder, form, together with the electrically conductive fluid, a respective sensor which is capacitively coupled to a portion of the electrically conductive fluid in the fluid conduit.

27. 发明授权

US11982553B2 Apparatus for monitoring fluid flow in a pipe using electromagnetic velocity tomography 有权
公开(公告)号：US11982553B2
公开(公告)日：2024-05-14
申请号：US18550575
申请日：2022-03-15
申请人： ENERCORP ENGINEERED SOLUTIONS, LLC
发明人： Gary Lucas , Obie Ogheneochuko
IPC分类号： G01F1/58 , G01F1/002 , G01F1/60 , G01F1/74
CPC分类号： G01F1/588 , G01F1/584 , G01F1/586 , G01F1/60 , G01F1/74 , G01F1/002
摘要： An apparatus for monitoring a fluid flow in a pipe using electromagnetic velocity tomography (EVT) which can incorporate capacitively-coupled electrodes which avoid any direct physical and electrical contact between the process fluid to be monitored and the electronics for processing the flow induced voltages, yet which can provide highly accurate output data for processing using electromagnetic velocity tomography (EVT) to produce images of the fluid flow.

28. 发明申请

US20220404227A1 DEVICES, SYSTEMS AND METHODS FOR DETECTING LEAKS AND MEASURING USAGE 有权
公开(公告)号：US20220404227A1
公开(公告)日：2022-12-22
申请号：US17834904
申请日：2022-06-07
申请人： WATERX TECHNOLOGIES, INC.
发明人： Abraham Greenboim
IPC分类号： G01M3/04 , G01F1/002
摘要： Devices, systems and methods for leak detection are provided herein. Also provided are devices, systems and methods for monitoring and/or measuring fluid usage. In some aspects, a system comprising a sensor, a processing system, and a platform are provided. In some aspects, the sensor may be coupled to a spinning device. The sensor can be configured to detect fluid data, which can comprise, for example, displacement data of liquid and/or movement data associated with the liquid in a container and/or flow data associated with a flow of fluid in a conduit. The processing system can be coupled with the sensor and configured to communicate the fluid data. The platform can comprise an application communicatively coupled to one or more databases storing evaluation data (e.g., known pattern data) and configured to receive the fluid data and determine if there is a leak.

29. 发明授权

US11530939B2 Monitoring flow parameters with natural expressions 有权
公开(公告)号：US11530939B2
公开(公告)日：2022-12-20
申请号：US16460624
申请日：2019-07-02
申请人： Michael L. Bolan
发明人： Michael L. Bolan
IPC分类号： G01F1/684 , G01F23/296 , G01F23/2962 , G01F25/20 , G01F1/66 , G01F1/002
摘要： A monitoring apparatus is disclosed that includes a.) at least one acoustic pickup, b.) a sound pressure sensor acoustically coupled to the at least one acoustic pickup, and c.) a computing device interfaced to the sound pressure sensor. The at least one acoustic pickup may be submerged in or located in proximity to flowing fluid. The sound sensor is configured to acquire sound intensity waveforms naturally generated by the flowing fluid as a source of data patterns for training the apparatus as well stimuli used to generate responses about flow conditions. The computing device is configured to quantify flow parameters of the flowing fluid from sound utterances and visual appearances intrinsically expressed by the flow using machine learning models.

30. 发明授权

US11512989B2 System and method for determining slurry sand concentration and continuous calibration of metering mechanisms for transferring same 有权
公开(公告)号：US11512989B2
公开(公告)日：2022-11-29
申请号：US17167984
申请日：2021-02-04
申请人： Halliburton Energy Services, Inc.
发明人： Wesley John Warren , Bryan John Lewis , Tim H. Hunter
IPC分类号： G01F1/002 , E21B43/267 , E21B21/06
摘要： In accordance with presently disclosed embodiments, systems and methods for determining the amount of bulk material being choke-fed into an inlet of a blender from one or more bulk material containers placed on a support structure are disclosed. The system includes sensors placed on the support structure beneath the one or more containers for determining the amount of bulk material contained within the container at any given time. By monitoring the change in the mass of the material in the containers overtime the amount of material being fed into the blender can be determined. The material is metered into a mixer within the blender using a metering mechanism, such as a sand screw, which supplies a fixed capacity of bulk material into the blender. The ability to precisely measure the amount of bulk material being choke-fed into the blender enables operators to calibrate the sand screw continuously.

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