公开(公告)号：US11579004B2

公开(公告)日：2023-02-14

申请号：US17208897

申请日：2021-03-22

申请人： Covidien AG

发明人： Tyler Bywaters Rice ,  Sean Michael White ,  Bruce Yee Yang

IPC分类号： G01F1/7086 ,  G01N21/47 ,  A61B5/026 ,  G01B9/02 ,  G01F1/712

摘要： Disclosed herein are systems, methods, and devices for calibrating contrast measurements from laser speckle imaging systems to accurately determine unknown particle motion characteristics, such as flow rate. The calibration stores to memory calibration data, which may include a set of measurements from samples with known particle characteristics and/or estimates of noise, including the effects on contrast arising from undesired signals unrelated to the unknown particle motion characteristics. The calibration data may be accessed and used to correct an empirical measurement of contrast and/or interpolate a value of the unknown particle motion characteristic. The system may include a light source, photodetector, processor, and memory, which can be combined into a single device, such as a wearable device, for providing calibrated flow measurements. The device may be used, for example, to measure blood flow, cardiac output, and heart rate, and can be used to amplify the pulsatile signal.

公开(公告)号：US11385096B2

公开(公告)日：2022-07-12

申请号：US16613698

申请日：2018-05-15

申请人： SENSIDYNE, L.P.

发明人： Stanislav Ivanov ,  William Evan Flanery ,  Oliver Justin Parker ,  Richard Terrence Reo

IPC分类号： G01F25/10 ,  G01F1/28 ,  G01F1/7086

摘要： An airflow calibrator 10 may generally comprise an inlet 15 in fluid communication with an outlet 20 to define a flow path 30 of a fluid through the airflow calibrator 10; a face seal valve 40 in fluid communication with the inlet 15; a removable flow cell 50 in fluid communication with the face seal valve 40; a variable restrictor valve 60 in fluid communication with the removable flow cell 50; and an optical sensor array 70 to determine the airflow, i.e., flow rate, of an air sampling pump in fluid communication with the airflow calibrator. Methods of using the airflow calibrator are also described.

公开(公告)号：US20240353247A1

公开(公告)日：2024-10-24

申请号：US18636672

申请日：2024-04-16

申请人： CKD CORPORATION

发明人： Shinichi Nitta

IPC分类号： G01F1/7086

CPC分类号： G01F1/7086

摘要： A flow rate measurement unit includes: an inflow passage; an outflow passage; a screening passage including an inlet and outlet; an injector that injects a substance into the inflow passage; a first detector that irradiates the inlet with the light having the predetermined wavelength, and detects a first intensity; a second detector that irradiates the outlet with the light having the predetermined wavelength, and detects a second intensity; and a first controller that calculates a flow rate of the liquid by dividing a predetermined volume of the screening passage from the inlet to the outlet by a time difference obtained by subtracting a first time from a second time. The first time is taken from when the substance is injected until the first intensity reaches a peak, and the second time is taken from when the substance is injected until the second intensity reaches a peak.

公开(公告)号：US11953358B2

公开(公告)日：2024-04-09

申请号：US17278937

申请日：2019-09-24

申请人： PROMECON PROCESS MEASUREMENT CONTROL GMBH

发明人： Hans-Georg Conrads

IPC分类号： G01F1/7086 ,  G01F1/704 ,  G01F1/712

CPC分类号： G01F1/7086 ,  G01F1/7044 ,  G01F1/712

摘要： The invention relates to a method for measuring a flow velocity (v) of a gas stream (14) featuring the steps: (a) time-resolved measurement of an IR radiation parameter (E) of IR radiation of the gas stream (14) at a first measurement point (P1) outside of the gas stream (14), thereby obtaining a first IR radiation parameter curve (Eg1,1(t)), (b)time-resolved measurement of an IR radiation parameter (E) at a second measurement point (P2) outside of the gas stream (14), thereby obtaining a second IR radiation parameter curve (Eg1,2(t)), (c) calculation of a transit time (τ1) from the first IR radiation parameter curve (Eg1,1(t)) and the second IR radiation parameter curve (Eg1,2(t)), in particular by means of cross-correlation, and (d) calculation of the flow velocity (vG) from the transit time (τ1), (e) wherein the IR radiation parameter (Eg1) is measured photoelectrically at a wavelength (g1) of at least 780 nm, and (f) a measurement frequency (f) is at least 1 kilohertz.

公开(公告)号：US20240044683A1

公开(公告)日：2024-02-08

申请号：US18486007

申请日：2023-10-12

申请人： GOVERNMENT OF THE UNITED STATES AS REPRESENTED BY THE ADMINISTRATOR OF THE U.S. ,  URBANALTA CORP

发明人： Ruben KERTESZ ,  Daniel J. MURRAY, JR. ,  Michael BOLAN ,  Ryan ANDERSON ,  Chunsheng FANG

IPC分类号： G01F1/66 ,  G01F1/661 ,  H01M10/42 ,  F16M13/02 ,  E03F7/00 ,  G01F1/002 ,  G01F1/704 ,  G01F1/7086 ,  H01M50/251

CPC分类号： G01F1/662 ,  G01F1/661 ,  G01F1/666 ,  H01M10/4257 ,  F16M13/02 ,  E03F7/00 ,  G01F1/002 ,  G01F1/704 ,  G01F1/7086 ,  H01M50/251 ,  Y10T137/8158 ,  Y10T137/8359 ,  G01F1/66 ,  E03F2201/20 ,  E03F2201/40 ,  H01M2010/4271

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.

公开(公告)号：US20230341359A1

公开(公告)日：2023-10-26

申请号：US18009953

申请日：2021-03-29

申请人： Thermo Fisher Scientific (Shanghai) Instruments Co., Ltd. ,  Thermo Fisher Scientific (Suzhou) Instruments Co., Ltd.

发明人： Hongfang Wang ,  Gang Li ,  Kun Fan

IPC分类号： G01N30/80 ,  G01F1/7086

CPC分类号： G01N30/80 ,  G01F1/7086

摘要： A method for determining the volume of a pipeline in a liquid chromatography system. The method comprises: inserting a detectable marker into a liquid flow of a liquid chromatograph; and by means of a time difference between a first moment at which a liquid chromatography detector detects the marker and a second moment at which a first sensor detects the marker, and a flow rate of the liquid flow, determining the total volume of pipelines between the liquid chromatography detector and the first sensor. By means of the method, a user can easily and flexibly determine the volume of a pipeline in a liquid chromatography system. In addition, further provided are a liquid chromatography system and a pipeline volume determination device.

公开(公告)号：US20230251119A1

公开(公告)日：2023-08-10

申请号：US18098155

申请日：2023-01-18

申请人： Chengdu Sea Pioneers Technology Co., Ltd.

发明人： Jige Chen ,  Bin Xu ,  Chao Luo

IPC分类号： G01F1/7086 ,  G01F1/74 ,  G01F1/661 ,  F17D3/18

CPC分类号： G01F1/7086 ,  F17D3/18 ,  G01F1/74 ,  G01F1/661

摘要： Disclosed are a method and a device for measuring a flux of a heavy oil-miscible phase fluid, the method including: flowing of the heavy oil-miscible phase fluid out of an oil and gas well through the pipeline, with the heavy oil-miscible phase fluid including at least two fluid media; measuring a total flux of throttling differential pressure of the heavy oil-miscible phase fluid flowing through the streamlined spindle; carrying out a measurement with a light quantum of at least four levels on the heavy oil-miscible phase fluid by the phase separator with light quantum of multi levels, such that a linear mass of each of the at least two fluid media is obtained; and obtaining a flux of each of the at least two fluid media from the total flux of throttling differential pressure and the linear mass of each of the at least two fluid media.

公开(公告)号：US20230213369A1

公开(公告)日：2023-07-06

申请号：US18182601

申请日：2023-03-13

申请人： Illinois Tool Works Inc.

发明人： Vladimir Krakhman

IPC分类号： G01F1/78 ,  G01F1/37 ,  G01F1/7086

CPC分类号： G01F1/78 ,  G01F1/37 ,  G01F1/7086

摘要： An example method to perform optical measurements involves: emitting a first light beam via a first light source; performing first measurements by detecting the first light beam via a first optical sensor; emitting a second light beam via a second light source; performing second measurements by detecting the second light beam via a second optical sensor, the first and second measurements comprising variable components; performing third measurements by detecting a third light beam emitted from the second light source via a third optical sensor, the third measurements comprising a first steady state component representative of light intensities of the first and second light sources; and compensating a first light output of the first light beam and a second light output of the second light beam by controlling one or more currents to the first and second light sources based on the first steady state component of the third measurements.

公开(公告)号：US11650090B2

公开(公告)日：2023-05-16

申请号：US17185050

申请日：2021-02-25

申请人： Feed Flow Limited

发明人： Marcelin Ragot Chopard ,  Casey Mitchell Forsyth

IPC分类号： G01F1/7082 ,  G01F1/7086 ,  F17D3/18 ,  G01F23/296 ,  A01K61/80 ,  G01F23/2962

CPC分类号： G01F1/7086 ,  F17D3/18 ,  G01F1/7082 ,  A01K61/80 ,  G01F23/2962

摘要： Apparatus is provided for estimating a flow rate of a fluent solid material in a generally horizontal pipe having a movable transportation element such as an auger in the pipe for transporting the material along the pipe including distance sensors mounted in the pipe in an upper part of the pipe and arranged to detect the distance of the material in a lower part of the pipe from the sensor. Another sensor is provided to detect the rate of movement of the transportation element for example by detecting the metal of the auger flight. The output from the sensors is fed to a control system for analyzing the output signals from the sensors over time to provide the estimate of flow rate. The sensors can be mounted in a pressurized enclosure to prevent escape of dust though openings for the sensors.

公开(公告)号：US20230041777A1

公开(公告)日：2023-02-09

申请号：US17963310

申请日：2022-10-11

申请人： Ventbuster Holdings Inc.

发明人： Robert Wayne Layher ,  Deanne Rose Layher ,  Scott Robert Layher

IPC分类号： G01F1/86 ,  G01F1/696 ,  G01F1/688 ,  G01F1/684 ,  G01F1/7086 ,  G01F15/04 ,  G01F25/10 ,  E21B47/06

摘要： A device which: optically detects the presence of, measures the flow rate of, and identifies the characteristics of venting fugitive gas emissions. Specifically the device provides a spectral analysis of emission gas constituents; selective detection of the presence of venting hydrocarbons; measurement of venting emissions flow rates, the measurement of shut-in and flowing venting system pressures and the venting system temperatures. The flow rates are corrected, relative to the detection of the gas constituents and standard temperature and pressure (STP). These devices are configured to collect such data electronically and transmit via various telemetry systems, to a secure remote data network for reporting, access, evaluation, real-time monitoring and archiving as required.