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公开(公告)号：US11547998B2
公开(公告)日：2023-01-10
申请号：US16768248
申请日：2018-08-30
摘要： An example device includes a microfluidic channel and a movable element retained in the microfluidic channel to move from a first position to a second position by fluid flow through the microfluidic channel. The device includes a sensor to take a sensor reading to determine fluid flow through the microfluidic channel. The device includes a microfluidic pump to return the movable element from the second position to the first position. The device includes a controller to actuate the microfluidic pump and to determine a flow rate of the fluid flow through the microfluidic channel based on the sensor reading.
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公开(公告)号：US11519248B2
公开(公告)日：2022-12-06
申请号：US16861167
申请日：2020-04-28
发明人： Joel David Shaw
摘要： Gas and liquid velocities of fluid in a lift gas assisted well system are estimated by adding liquid and gas tracers downhole and monitoring their travel time over a known distance. Based on estimated velocities, a slip factor is obtained that represents relative velocities of the gas and liquid in the fluid. A flow regime of the fluid is identified based on the slip factor. The flow regime is optionally altered by adjusting one or more operational parameters of the well.
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公开(公告)号：US20220232754A1
公开(公告)日：2022-07-28
申请号：US17155806
申请日：2021-01-22
申请人： DEERE & COMPANY
发明人： Andrew W. Harmon
摘要： A method for identifying a flow of commodity through a commodity distribution system. The method including providing a tank configured to contain a commodity, selectively distributing commodity from the tank to a drill assembly to be distributed to an underlying surface, and monitoring the flow of commodity from the tank to the drill assembly with a camera to identify flow characteristics.
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公开(公告)号：US11143536B2
公开(公告)日：2021-10-12
申请号：US16444507
申请日：2019-06-18
发明人： Hiroshi Imai , Koji Nakajima , Kazuo Abo
摘要： A thermal flowmeter including a measurement tube that has an inflow port into which a liquid flows and an outflow port that allows the liquid which flows in from the inflow port to flow out, and has an internal flow passage where the liquid flows formed to extend along an axis, and a plurality of detection sections each of which has a heating resistor and a temperature detecting resistor along the axis and is provided at the measurement tube, and a control section that calculates a flow rate of the liquid flowing through the internal flow passage based on signals from the plurality of detection sections, wherein the plurality of detection sections are respectively provided with predetermined intervals left in a circumferential direction with the axis as a center.
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公开(公告)号：US11060896B2
公开(公告)日：2021-07-13
申请号：US16690475
申请日：2019-11-21
申请人： GOVERNMENT OF THE UNITED STATES AS REPRESENTED BY THE ADMINISTRATOR OF THE U.S. ENVIRONMENTAL PROTECTION AGENCY , URBANALTA CORP
摘要： A flow imaging and monitoring system for synchronized management of wide area drainage that includes an interposer for supporting monitoring and management equipment in a manhole, a module for illuminating water flowing in pipes at the base of the manhole, a module for monitoring responses to reflected light, a sealed and rechargeable battery pack, and a data analysis and management system to interpret data streams in real time. The interposer can be adjusted to fit the diameter of the manhole and can be adjusted to be placed under the manhole cover. The module for illuminating the flowing water can be adjusted to generate various frequencies. The support structures for the modules can be adjusted for varying pitch, roll and yaw with respect to the manhole. The data analysis and management system is supported by cloud computing.
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公开(公告)号：US20210069708A1
公开(公告)日：2021-03-11
申请号：US16772350
申请日：2018-02-12
摘要： A microfluidic flow sensor may include a substrate having a microfluidic channel, a bubble generator to introduce a bubble into fluid that is directed through the microfluidic channel and a sensor element along the microfluidic channel and spaced from the bubble generator. The sensor element outputs a signal based upon a sensed passage of the bubble with respect to the sensor element. Portions of the microfluidic channel proximate the sensor element have a first size and wherein the bubble generated by the bubble generator is to have a second size greater than one half the first size.
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公开(公告)号：US10927667B2
公开(公告)日：2021-02-23
申请号：US15877588
申请日：2018-01-23
申请人： Silixa Ltd. , CHEVRON U.S.A. INC.
IPC分类号： E21B47/135 , G01P5/24 , G01N29/46 , E21B47/0224 , G01F1/708 , G01N29/024
摘要： Externally generated noise can be coupled into a fluid carrying structure such as a pipe, well, or borehole so as to artificially acoustically “illuminate” the pipe, well, or borehole, and allow fluid flow in the structure or structural integrity to be determined. In the disclosed system, externally generated noise is coupled into the structure being monitored at the same time as data logging required to undertake the monitoring is performed. This has three effects. First, the externally generated sound is coupled into the structure so as to “illuminate” acoustically the structure to allow data to be collected from which fluid flow may be determined, and secondly the amount of data that need be collected is reduced, as there is no need to log data when the structure is not being illuminated. Thirdly, there are signal processing advantages in having the data logging being undertaken only when the acoustic illumination occurs.
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公开(公告)号：US10914621B2
公开(公告)日：2021-02-09
申请号：US15749049
申请日：2016-07-28
申请人： NURON LIMITED
发明人： Michael Ainger
IPC分类号： G01P3/36 , G01F1/66 , G01L11/02 , G01F1/00 , G01L1/24 , G01F15/02 , G01F1/708 , G01F23/292 , G01D5/353
摘要： A method and system for monitoring fluid flow in an open channel system, using an optical fibre that extends along at least a portion of the open channel system within the channel below the surface of the fluid. The method comprising sending light pulses into the sensor optical fibre, receiving backscattered light from the sensor optical fibre, and analysing properties of the backscattered light to obtain data representing strain along the sensor fibre. The strain data can be processed to derive information about the fluid flow, such as fluid depth, flow velocity and flow volume. A containment system for the optical fibre sensor may be included to protect the fibre and convert the pressure of a fluid in the open channel to a strain in the fibre. The temperature of the fluid may also be measured and temperature compensation of the measured strain carried out. The system is particularly applicable to sewers, drains, culverts or levees, with the optical fibre sensor installed axially at the bottom of the channel.
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公开(公告)号：US20210010841A1
公开(公告)日：2021-01-14
申请号：US16926184
申请日：2020-07-10
申请人： Expro Meters, Inc.
摘要： An apparatus for measuring a parameter of a fluid flow passing within a pipe is provided. The apparatus includes a sensing device and a processing unit. The sensing device has a sensor array that includes at least one first macro fiber composite (MFC) strain sensor disposed at a first axial position, and at least one second MFC strain sensor disposed at a second axial position. The first axial position and the second axial position are spaced apart from one another. The at least one first MFC strain sensor and the at least one second MFC strain sensor are both configured to produce signals representative of pressure variations of the fluid flow passing within the pipe. The processing unit is configured to receive the signals from the sensor array and measure one or more fluid flow parameters based on the signals.
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公开(公告)号：US10852169B2
公开(公告)日：2020-12-01
申请号：US15512777
申请日：2015-09-18
摘要： A method to control an ultrasonic flowmeter, the ultrasonic flowmeter including a pipe segment; a first pair of transducers defining a first ultrasonic path; and a second pair of transducers defining a second ultrasonic path is provided. The method includes: a) transmitting a first code along the first ultrasonic path; b) simultaneously transmitting a second code along the second ultrasonic path, wherein the first and second code are non-correlated; c) receiving a first ultrasonic signal by the first pair of transducers; d) receiving a second ultrasonic signal by the second pair of transducers; e) correlating the transmitted first code with the first ultrasonic signal; and f) correlating the transmitted second code with the second ultrasonic signal.
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