公开(公告)号：US11841253B2

公开(公告)日：2023-12-12

申请号：US17412906

申请日：2021-08-26

申请人： KROHNE Messtechnik GmbH

发明人： Helmut Brockhaus ,  Markus Dabrowski ,  Ralf Kaisler

IPC分类号： G01F1/58 ,  G01F1/60 ,  G01F25/10

CPC分类号： G01F1/588 ,  G01F1/584 ,  G01F1/60 ,  G01F25/10

摘要： A magnetic-inductive flowmeter includes a measuring tube for carrying an electrically conductive medium, a magnetic field generator for generating a magnetic field passing through the medium, two electrodes for tapping a measuring voltage induced in the medium, a ground element electrically connected to the medium, and an evaluation unit. The electrodes are connected to the evaluation unit via electrode lines. The ground element is connected to the evaluation unit via a first ground line for potential equalization between the medium and a reference potential of the evaluation unit. The ground element is connected to the evaluation unit at least indirectly via a second ground line. The first and second ground lines are part of a monitoring circuit for monitoring the connection between the ground element and the evaluation unit. The evaluation unit is designed such that it monitors the connection between the ground element and the evaluation unit.

公开(公告)号：US20230366721A1

公开(公告)日：2023-11-16

申请号：US17857563

申请日：2022-07-05

申请人： CHONGQING UNIVERSITY

发明人： Ke ZHANG ,  Yi CHAI ,  Yalin QIAN ,  Huaxiang PU ,  Jialu WANG ,  Qianqian SONG ,  Keyue QIU ,  Xichen LI ,  Yiyao AN

IPC分类号： G01F25/10 ,  G01F1/60

CPC分类号： G01F25/10 ,  G01F1/60

摘要： A method and system for detecting dirt on an electrode of an electromagnetic flowmeter are provided. The method includes: under three different conditions acquiring resistance values between the electrode and ground to form a first dataset, second datasets, and a sample set to be tested; extracting a positive definite feature matrix corresponding to each sample batch and calculating a Riemann center thereof; calculating a similarity index between the sample feature matrix and each of the first feature matrices and the second feature matrices; extracting l feature matrices with a largest similarity index, and calculating a local Riemann center thereof; and calculating proximity between the local Riemann center and each of the second Riemann centers, and determining that a Riemann center with the greatest proximity corresponds to dirt on the electrode corresponding to the sample set to be tested. The method can achieve a online rapid detection of dirt on the electrode.

公开(公告)号：US11815388B2

公开(公告)日：2023-11-14

申请号：US17108439

申请日：2020-12-01

申请人： Honeywell International Inc.

发明人： Christian Lampe-Juergens ,  Andreas Wuchrer ,  Ralf Schroeder Genannt Berghegger ,  Norbert Flerlage ,  Tobias Meimberg

IPC分类号： G01F3/22 ,  G01F25/10

CPC分类号： G01F3/22 ,  G01F25/10

摘要： Devices, methods, and systems for operating gas meters are described herein. The systems may include a gas measuring system connectable to a gas line, where the gas measuring system may include a flow rate sensor, a pressure sensor, and a controller in communication with the flow rate sensor and the pressure sensor. The flow rate sensor and the pressure sensor may be configured to sense measures of a gas passing through the gas line. The controller may repeatedly obtain pressure measurements at set pressure measurement times. Measures from the flow sensor may be monitored and when a measure from the flow sensor measure meets a flow rate criteria, the controller may trigger an extra pressure measurement without waiting for a next pressure measurement time. The controller may initiate closing of a gas valve when a measure from the pressure sensor exceeds a threshold value.

公开(公告)号：US20230341247A1

公开(公告)日：2023-10-26

申请号：US18002244

申请日：2021-06-15

申请人： Endress+Hauser Flowtec AG

发明人： Michael Kirst ,  Alfred Rieder

IPC分类号： G01F1/84 ,  G01F25/10

CPC分类号： G01F1/8431 ,  G01F1/8436 ,  G01F25/10

摘要： The measuring system comprises a vibration-type transducer (10) and measuring system electronics (20) electrically coupled to the transducer (10) for controlling the transducer and for evaluating vibration measurement signals (s1, s2) provided by the transducer. The exciter assembly comprises a vibration exciter (31) which is designed to convert electrical power with an electrical current that changes over time into mechanical power, in such a way that, at a drive point, formed by the vibration exciter on the tube that is mechanically connected to the vibration exciter, a drive force that changes over time acts on the tube, wherein the vibration exciter (31) is positioned and designed such that a drive offset (ΔE), namely a smallest distance between a drive cross-sectional area of the tube surrounded by a notional circumferential line of the tube intersecting the drive point and a predefined reference cross-sectional area of the tube, is no more than 3° mm and/or less than 0.5% of the tube length, and wherein a vibration node of vibration movements formed between two vibration antinodes of said vibration movements of the at least one tube in a vibration mode of a second or higher order (deviating from a vibration mode of a first order) lies within the reference cross-sectional area. The measuring system electronics (20) is designed to feed electrical power into the vibration exciter (31) by means of an electrical drive signal (e1), having an electrical current that changes over time, in such a way that the tube performs forced mechanical vibrations with one or more vibration frequencies specified by the drive signal (e1), wherein the measuring system electronics both provides the drive signal (e1) with sinusoidal (useful) current components (eN1, eN2) having an (alternating current) frequency (feN1) or an (alternating current) frequency (feN2), in such a way that the (alternating current) frequency (feN1) deviates from a resonant frequency (f2n+1) of a vibration mode of an odd-numbered order naturally intrinsic to the tube and the (alternating current) frequency (feN2) deviates from a resonant frequency (f2n+2) of a vibration mode of an even-numbered order naturally intrinsic to the tube by less than 1% and/or by less than 1 Hz, and also determines measurement values for at least one flow parameter of a measuring material guided in the transducer based on corresponding useful signal components (s1N1; s2N1; s1 N2; s2N2) of at least one of the vibration measurement signals (s1, s2).

公开(公告)号：US11768099B2

公开(公告)日：2023-09-26

申请号：US17433925

申请日：2020-02-04

申请人： PVTE COMPANY LIMITED

发明人： Tanunt Leelayoova ,  Uracha Poopakdee

IPC分类号： G01F25/10

CPC分类号： G01F25/14

摘要： A calibration method for a liquid flowmeter comprising: providing a first tank (12) for receiving said liquid to be measured and a liquid storage tank (14) connected to said first tank (12); providing a liquid delivering line (9) for conveying the liquid from said liquid storage tank (14) to an external device; providing a weighing sensor (22) for weighing the liquid contained in either the first tank (12) or the liquid storage tank (14), wherein during performing the calibration for the flowmeter (20): disconnecting the liquid delivering line (9) in a conveyance direction downstream of the liquid flowmeter (20) from the external device; connecting said liquid delivering line (9) in the conveyance direction downstream of said liquid flowmeter (20) to a calibrating line (7) connected to said first tank (12); and determining a flow rate of the conveyed liquid within a predetermined time interval based on the change in the liquid weight measured by said weighing sensor (22) in said predetermined time interval, wherein the liquid from said liquid storage tank (14) is delivered through the liquid delivering line back to said first tank (12), and the flow rate of the liquid from the liquid storage tank (14) to said first tank (12) is controlled so as to be substantially constant during calibration.

公开(公告)号：US11762040B2

公开(公告)日：2023-09-19

申请号：US17218060

申请日：2021-03-30

申请人： Rosemount Aerospace Inc.

发明人： Kaare Josef Anderson ,  Magdi A. Essawy

IPC分类号： G01R31/56 ,  G01R31/52 ,  G01P21/02 ,  G01F25/10 ,  B64D15/12 ,  B64D43/02 ,  G01P13/02 ,  G01P5/165

CPC分类号： G01R31/56 ,  G01P21/025 ,  G01R31/52 ,  B64D15/12 ,  B64D43/02 ,  G01F25/10 ,  G01P5/165 ,  G01P13/025

摘要： Apparatus and associated methods relate to predicting failure and/or estimating remaining useful life of an air-data-probe heater. Failure is predicted or useful life is estimated based on an electrical metric of the electrical operating power provided to a resistive heating element of the air-data-probe heater. The electrical metric of the air data probe heater is one or more of: i) phase relation between voltage across the resistive heating element and leakage current, which is conducted from the resistive heating element to a conductive sheath surrounding the resistive heating element; ii) a time-domain profile of leakage current through the heating element insulation during a full power cycle; and/or iii) high-frequency components of the electrical current conducted by the resistive heating element and/or the voltage across the resistive heating element.

公开(公告)号：US20230273063A1

公开(公告)日：2023-08-31

申请号：US17683006

申请日：2022-02-28

申请人： Saudi Arabian Oil Company

发明人： Ammal F. Al-Anazi ,  Wenrong Mei

IPC分类号： G01F25/10 ,  G01F1/84 ,  G01F15/063

CPC分类号： G01F25/10 ,  G01F1/84 ,  G01F15/063

摘要： Disclosed are methods, systems, and computer-readable medium to perform operations including: calculating a total gas flow rate in a testing trap, where the total gas flow rate includes a first gas flow rate in a liquid leg of the testing trap and a second gas flow rate in a gas leg of the testing trap; calculating a total oil flow rate in the testing trap, where the total oil flow rate includes a first oil flow rate in the liquid leg and a second oil rate in the gas leg; comparing the total gas flow rate and the total oil flow rate to a measured gas flow rate and a measured oil flow rate respectively, where the measured gas flow rate and the measured gas flow rate are measured by a multiphase flow meter; and determining, based on the comparison, whether the multiphase flow meter is calibrated.

公开(公告)号：US20230251158A1

公开(公告)日：2023-08-10

申请号：US18135320

申请日：2023-04-17

申请人： Johnson Controls Tyco IP Holdings LLP

发明人： John Scholten ,  Jon Douglas ,  Jack A. Peterson

IPC分类号： G01L27/00 ,  F15B19/00 ,  G01F1/36 ,  G01F25/10

CPC分类号： G01L27/005 ,  F15B19/005 ,  G01F1/36 ,  G01F25/10 ,  F24F2110/40

摘要： An airflow sensor assembly for an air duct is provided. The airflow sensor assembly includes the air duct having an interior wall and an exterior wall, a high pressure pickup device, a low pressure pickup device, a pressure redirection device, and a pressure sensor. The pressure redirection device is fluidly coupled to the high pressure pickup device and the low pressure pickup device and includes a low inlet, a high inlet, and a common outlet. The pressure sensor is selectively fluidly coupled to the high pressure pickup device and the low pressure pickup device and includes a first inlet and a second inlet. The second inlet is fluidly coupled to the common outlet of the pressure redirection device.

公开(公告)号：US20230243691A1

公开(公告)日：2023-08-03

申请号：US18295472

申请日：2023-04-04

申请人： MICRO MOTION, INC.

发明人： Timothy J. CUNNINGHAM ,  Andrew Timothy PATTEN ,  Mark James BELL

IPC分类号： G01F25/10 ,  G01F1/84

CPC分类号： G01F25/10 ,  G01F1/8422 ,  G01F1/8427 ,  G01F1/8436 ,  G01F1/8477 ,  G01N9/002

摘要： A meter electronics (20) for detecting and identifying a change in a vibratory meter (5) is provided. The meter electronics (20) includes a processing system (202) including a storage system (204) configured to store a central tendency value of a meter verification parameter and dispersion value of the meter verification parameter. The processing system (202) is configured to obtain the central tendency value and the dispersion value from the storage system (204) and determine a probability based on the central tendency value and the dispersion value to detect if the central tendency value is different than a baseline value.

公开(公告)号：US11692862B2

公开(公告)日：2023-07-04

申请号：US16949479

申请日：2020-10-30

申请人： ECOLAB USA INC.

发明人： Henry Louis Carbone, II ,  Richard J. Mehus ,  Kevin C. Tauer ,  Anatoly Skirda ,  Eugene Tokhtuev ,  William M. Christensen

IPC分类号： G01F25/00 ,  G01F15/063 ,  G01F25/10 ,  G01F3/10 ,  G05D11/13

CPC分类号： G01F25/0092 ,  G01F3/10 ,  G01F15/063 ,  G01F25/10 ,  G05D11/132

摘要： An apparatus, method and system providing for calibration and/or control of a liquid dispensing system is disclosed. The hand-held calibration auditing tool includes a flow meter (36-37) with inlets adapted for quick connection to one or more liquid inputs and/or liquid outputs of a liquid dispensing system (10). A sensor (94-95) having a data output of liquid flow information for a liquid input to the dispensing system (10) is operably connected to a controller (12) to receive the liquid flow information for the liquid input. The controller (12) provides a dilution rate and other liquid flow information for a liquid product input to a dispenser. The tool may include any number of flow meters, and may also include a flow meter connected to an outlet of a dispenser (22) for providing flow information.