公开(公告)号：US12098990B2

公开(公告)日：2024-09-24

申请号：US17885944

申请日：2022-08-11

Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION ,  CHUNGBUK NATIONAL UNIVERSITY INDUSTRY—ACADEMIC COOPERATION FOUNDATION

Inventor： Won Ho Jhe ,  Sang Min An ,  Man Hee Lee ,  Chung Man Kim

IPC: G01N11/16 ,  G01N21/65

CPC classification number: G01N11/16 ,  G01N21/65

Abstract: A rheometer according to an embodiment includes a substrate on which an object to be measured is placed, a vibration unit configured to provide a vibration to the substrate, a plurality of probe units each including a quartz tuning fork and a contact member fixed to the quartz tuning fork, the contact member being able to contact the object, the plurality of probe units having different types of the contact members. Any one of the plurality of probe units is selected and contacts the object, and a controller configured to calculate a viscoelastic force of the object based on a vibration of the vibration unit and a vibration transmitted to the quartz tuning fork through the object from the vibration of the vibration unit.

公开(公告)号：US12066451B2

公开(公告)日：2024-08-20

申请号：US17435316

申请日：2019-03-25

Applicant: MICRO MOTION, INC.

Inventor： George Alexander Macdonald

IPC: G01N9/00 ,  G01N11/16

CPC classification number: G01N9/002 ,  G01N11/16 ,  G01N2009/006

Abstract: A vibrating meter comprises a vibrating element with a longitudinal direction and a cross-sectional area in a plane perpendicular to the longitudinal direction. The vibrating element moves between a first position and a second position in a plane perpendicular to the longitudinal direction of the vibrating element. An electronics is operable to drive the vibrating element between the first position and the second position. A boundary element and the vibrating element define a fluid velocity boosting gap having an average gap distance between the boundary element and the vibrating element. The vibrating element includes a gap-facing perimeter section facing the fluid velocity boosting gap having a gap perimeter length. In embodiments, a ratio of the gap perimeter length to the average gap distance is at least 160. In further embodiments, the average gap distance is 0.25 mm or less.

公开(公告)号：US20240255334A1

公开(公告)日：2024-08-01

申请号：US18561313

申请日：2022-04-20

Applicant: Endress+Hauser Flowtec AG

Inventor： Michael Kirst

IPC: G01F1/84 ,  G01F25/10 ,  G01N9/00 ,  G01N11/16

CPC classification number: G01F1/8422 ,  G01F1/8427 ,  G01F1/8436 ,  G01F25/10 ,  G01N9/002 ,  G01N2009/006 ,  G01N11/16

Abstract: The measuring system comprises a vibration-type transducer having a tube assembly, an exciter assembly and a sensor assembly, and a measuring system electronics unit electrically coupled to the exciter assembly and the sensor assembly. The measuring system electronics unit is configured to energize vibration exciters of the exciter assembly in a first operating mode such that the tubes perform out-of-phase mechanical vibrations with a frequency predefined by the drive signal, and to receive and evaluate vibration measurement signals representing vibration movements of the useful vibrations. The measuring system electronics unit is further configured to energize the vibration exciters in a second operating mode such that the tubes perform in-phase forced mechanical vibrations with a frequency predefined by the drive signal, and to receive and evaluate vibration measurement signals representing vibration movements of the useful vibrations.

公开(公告)号：US20240011881A1

公开(公告)日：2024-01-11

申请号：US18219978

申请日：2023-07-10

Applicant: Northeastern University

Inventor： Hongwei Sun ,  Ilia Chiniforooshan Esfahani

IPC: G01N11/16 ,  G01N29/036 ,  G01N29/22

CPC classification number: G01N11/16 ,  G01N29/036 ,  G01N29/222 ,  G01N2011/0073

Abstract: A micropillar-enabled acoustic wave (μPAW) viscometer including a quartz crystal microbalance (QCM) substrate; at least one micropillar having a first end and a second end, defining a height therebetween, the at least one micropillar disposed on to the QCM substrate at the first end and extending perpendicular to the QCM substrate; and a film disposed between the at least one micropillar and the QCM substrate.

公开(公告)号：US11860077B2

公开(公告)日：2024-01-02

申请号：US17551031

申请日：2021-12-14

Applicant: Saudi Arabian Oil Company

Inventor： Robert Adams ,  Edwin Hulse ,  Miguel Gonzalez ,  Tim Thiel

IPC: G01N11/16 ,  E21B49/08

CPC classification number: G01N11/16 ,  E21B49/0875

Abstract: Systems and methods include a computer-implemented method for performing real-time measurements of drilling fluid in a well. A driver and a reference are monitored for responses by a measurement controller of a system for measuring fluid flow. The driver is configured as a driving electromechanical resonator for contacting the drilling fluid. The reference is configured as a reference electromechanical resonator for contacting the drilling fluid. The reference is of a similar construction as the driver and is in contact with the drilling fluid in a substantially same way. Real-time measurements are performed by the measurement controller based on information received from the driver and reference. A viscosity and density of the drilling fluid are determined based on the real-time measurements. The similar construction of the driver and reference enables mitigation of environmental sensitivities of the driver and reference, enhancing fluid property sensitivities to physical properties of the drilling fluid.

公开(公告)号：US11768094B2

公开(公告)日：2023-09-26

申请号：US16955165

申请日：2018-11-15

Applicant: TrueDyne Sensors AG

Inventor： Patrick Reith ,  Christof Huber

IPC: G01F1/36 ,  G01F1/50 ,  G01F5/00 ,  G01N9/00 ,  G01N11/16 ,  G01F1/00 ,  G01F1/88

CPC classification number: G01F1/00 ,  G01F1/363 ,  G01F1/50 ,  G01F5/005 ,  G01N9/002 ,  G01N11/16

Abstract: The present disclosure relates to a method for determining a volumetric and/or mass flow rate of a medium flowing in a tube, wherein a density and/or a viscosity of the fluid is/are determined using a MEMS sensor chip, wherein the medium flowing in the tube at least partially flows through a measuring channel of the MEMS sensor chip to determine the density and/or the viscosity of the fluid, and wherein the volumetric and/or mass flow rate of the medium is determined regardless of the medium based on a detected pressure drop over the measuring channel of the MEMS sensor chip and the density and/or viscosity determined by the MEMS sensor.

公开(公告)号：US11740170B2

公开(公告)日：2023-08-29

申请号：US17074801

申请日：2020-10-20

Applicant: DIEHL METERING GMBH

Inventor： Michael Mayle ,  Andreas Madinger ,  Alexander Hofmann ,  Markus Schmidt

IPC: G01N11/16 ,  G01N29/036 ,  G01N29/22

CPC classification number: G01N11/16 ,  G01N29/036 ,  G01N29/22

Abstract: A method operates a measuring device used to determine a fluid variable. The measuring devices contains a vibration transducer driven to excite a wave in the fluid due to a test excitation signal. The wave is guided along a propagation path back to the vibration transducer or to an additional vibration transducer, thereby exciting the (additional) vibration transducer to vibrate. An output signal relating to this vibration is acquired, and a frequency of that segment of the output signal that lies in an analysis interval is determined. The analysis interval starts once the driving of the vibration transducer to excite the wave has finished, and/or once a maximum of the amplitude of the vibration is reached. The determination of the fluid variable is performed based on the determined frequency. An error message or a notification is output to a user and/or to a device external to the measuring device.

公开(公告)号：US11714039B2

公开(公告)日：2023-08-01

申请号：US17091402

申请日：2020-11-06

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Miguel Gonzalez ,  Subhash Chandrabose Ayirala ,  Lyla Maskeen ,  Abdulkarim Sofi

IPC: G01N11/16 ,  G01N33/44 ,  G01N11/00

CPC classification number: G01N11/16 ,  G01N33/442 ,  G01N2011/0006 ,  G01N2011/0026 ,  G01N2011/0046

Abstract: An apparatus for measuring a viscosity of a fluid is disclosed. The apparatus includes a Parylene coated quartz tuning fork for immersion in the fluid and an electronic circuit to excite a vibration of the Parylene coated quartz tuning fork and measure one or more vibrational parameters of the Parylene coated quartz tuning fork. A computer processor is configured to determine a non-Newtonian viscosity from the vibration of the Parylene coated quartz tuning fork based, at least in part, on a Stokes flow hydrodynamic model. The computer processor is coupled to a memory for storing a calibration curve to determine a Newtonian viscosity of the fluid from the non-Newtonian viscosity of the fluid.

公开(公告)号：US20230184655A1

公开(公告)日：2023-06-15

申请号：US17551031

申请日：2021-12-14

Applicant: Saudi Arabian Oil Company

Inventor： Robert Adams ,  Edwin Hulse ,  Miguel Gonzalez ,  Tim Thiel

IPC: G01N11/16 ,  E21B49/08

CPC classification number: G01N11/16 ,  E21B49/0875

Abstract: Systems and methods include a computer-implemented method for performing real-time measurements of drilling fluid in a well. A driver and a reference are monitored for responses by a measurement controller of a system for measuring fluid flow. The driver is configured as a driving electromechanical resonator for contacting the drilling fluid. The reference is configured as a reference electromechanical resonator for contacting the drilling fluid. The reference is of a similar construction as the driver and is in contact with the drilling fluid in a substantially same way. Real-time measurements are performed by the measurement controller based on information received from the driver and reference. A viscosity and density of the drilling fluid are determined based on the real-time measurements. The similar construction of the driver and reference enables mitigation of environmental sensitivities of the driver and reference, enhancing fluid property sensitivities to physical properties of the drilling fluid.

公开(公告)号：US11662290B2

公开(公告)日：2023-05-30

申请号：US16466364

申请日：2017-12-07

Applicant: GALDERMA HOLDING SA

Inventor： Morgan Karlsson ,  Åke Öhrlund

IPC: G01N11/16 ,  A61L27/20 ,  A61L27/52 ,  A61L27/58 ,  G01N11/14 ,  G01N11/00 ,  A61K31/728 ,  G06F9/44 ,  A61L27/50

CPC classification number: G01N11/165 ,  A61L27/20 ,  A61L27/52 ,  A61L27/58 ,  G01N11/142 ,  G01N11/16 ,  G01N11/162 ,  A61K31/728 ,  A61L27/50 ,  A61L2400/06 ,  A61L2430/34 ,  G01N2011/0026 ,  G06F9/44

Abstract: A process for evaluating rheological characteristics of an injectable gel including measuring the flexibility, wherein the flexibility is evaluated by measuring the strain at the crossover point of the amplitude sweep. The process may include subjecting an injectable gel to oscillating mechanical stresses to determine G′ and G″ as a function of strain (γ) in an amplitude sweep, determining the crossover point as the point at which G′ and G″ have the same value, determining the strain γcross at the crossover point, and determining the flexibility of the injectable gel as γcross or proportional to γcross. Further, a method of comparison of dermal fillers by measuring their flexibility and a method of evaluation of dermal filler behavior in human skin by measuring the flexibility.