公开(公告)号：US11125668B2

公开(公告)日：2021-09-21

申请号：US16470884

申请日：2016-12-19

申请人： RHEONICS GMBH

发明人： Joseph H. Goodbread ,  Sunil Kumar ,  Klaus Haeusler ,  Bernhard Zybach

IPC分类号： G01N11/16 ,  G01N9/34

摘要： A resonant sensor 1908 is used to determine fluid properties, the resonant sensor 1908 comprising a resonator 108 defining a lengthwise axis and having a central vibrational node (140), and a pair of opposed lengthwise end-portions (125); a support structure including a frame (115) and a set of flexible supports (110) extending from the frame to the central vibrational node and thereby supporting the resonator at the lengthwise midpoint; a driving and sensing assembly, adapted to drive the resonator to resonant motion and to sense resultant motion of the resonator and producing a motion sensed signal, responsive thereto; and a control and signal processing network adapted to control the driving and sensing assembly to drive the lengthwise end-portions in rotation about the lengthwise axis, in opposed rotational directions, and responsive to the motion sensed signal to determine at least one fluid property of a fluid under test in response to the motion sensed signal.

公开(公告)号：US20200088619A1

公开(公告)日：2020-03-19

申请号：US16470884

申请日：2016-12-19

申请人： RHEONICS GMBH

发明人： Joseph H. Goodbread ,  Sunil Kumar ,  Klaus Haeusler ,  Bernhard Zybach

IPC分类号： G01N9/34 ,  G01N11/16

摘要： A resonant sensor 1908 is used to determine fluid properties, the resonant sensor 1908 comprising a resonator 108 defining a lengthwise axis and having a central vibrational node (140), and a pair of opposed lengthwise end-portions (125); a support structure including a frame (115) and a set of flexible supports (110) extending from the frame to the central vibrational node and thereby supporting the resonator at the lengthwise midpoint; a driving and sensing assembly, adapted to drive the resonator to resonant motion and to sense resultant motion of the resonator and producing a motion sensed signal, responsive thereto; and a control and signal processing network adapted to control the driving and sensing assembly to drive the lengthwise end-portions in rotation about the lengthwise axis, in opposed rotational directions, and responsive to the motion sensed signal to determine at least one fluid property of a fluid under test in response to the motion sensed signal.

公开(公告)号：US11781961B1

公开(公告)日：2023-10-10

申请号：US17214624

申请日：2021-03-26

申请人： RHEONICS GMBH

发明人： Joseph H. Goodbread ,  Sunil Kumar ,  Klaus Haeusler

IPC分类号： G01N11/16 ,  G01N29/24 ,  G01N29/036

CPC分类号： G01N11/16 ,  G01N29/036 ,  G01N29/24

摘要： A method for measuring the fluid properties of a sequence of fluids, including at least a first fluid and a second fluid. The methods utilize a monitoring assembly, having a fluid-properties measurement device that includes a resonator, and a set of resonator extensions, each one adapted to attach to the resonator in a manner such that the resonator's response to excitation is affected by immersion of the resonator extension. In the method a first one of the resonator extensions is attached to the resonator and the fluid-properties measurement device is used to measure at least one fluid property of the first fluid. Then he first one of the resonator extensions is removed from the resonator and a second one of the resonator extensions is attached to the resonator. Finally, the fluid-properties measurement device is used to measure at least one fluid property of the second fluid.

公开(公告)号：US09995715B2

公开(公告)日：2018-06-12

申请号：US14685365

申请日：2015-04-13

申请人： Rheonics GmbH

发明人： Joseph H. Goodbread

IPC分类号： G01N11/16 ,  G01N29/036 ,  G01N29/24 ,  G01D5/20

CPC分类号： G01N29/036 ,  G01D5/2006 ,  G01N11/16 ,  G01N11/162 ,  G01N29/2412 ,  G01N2291/014 ,  G01N2291/02818 ,  G01N2291/0426 ,  G01N2291/101

摘要： A fluid properties measurement device, including a magnetically excited and sensed resonator and a resonator electromagnetic excitation assembly, including an excitation coil driven by an electrical network, electrically connected to the excitation coil. The excitation coil is positioned so that a varying magnetic field produced by the excitation coil will drive the resonator in a pattern of resonating movement that has predetermined characteristics. Also, an electromagnetic sensing assembly, including a gradiometric sense coil is positioned so that an electromagnetic field originating due to movement of the resonator in a pattern having the predetermined characteristics, will create a time-varying gradient across the sense coil. Finally, a signal sensing electrical network is electrically connected to the sense coil.

公开(公告)号：US20210096050A1

公开(公告)日：2021-04-01

申请号：US17119789

申请日：2020-12-11

申请人： RHEONICS GMBH

发明人： KLAUS HAEUSLER ,  JOSEPH GOODBREAD ,  SUNIL KUMAR

IPC分类号： G01N11/16 ,  G01N9/00

摘要： An inline fluid properties measurement device that includes a tube defining an interior space that includes at least one non-cylindrical volume, and having a fluid entrance and exit, and capable of conducting fluid from the fluid entrance to the fluid exit, through the at least one non-cylindrical volume. An excitation and sensing transducer assembly is positioned to torsionally drive the tube and to sense torsional movement of the tube and a controller is programmed to drive the excitation and sensing transducer to drive the tube in torsion, thereby translating the fluid in the at least one non-cylindrical volume, and to sense torsional movement of the tube, thereby producing a sense signal. Finally, a signal analysis assembly responsive to the sense signal to form a measurement of at least one property of the fluid.

公开(公告)号：US10184881B2

公开(公告)日：2019-01-22

申请号：US15567017

申请日：2016-04-18

申请人： Rheonics GmbH

发明人： Joseph H. Goodbread ,  Sunil Kumar ,  Klaus Haeusler

IPC分类号： G01N17/04 ,  G01N29/265 ,  G01N29/02 ,  G01N29/036

摘要： A method of measuring the amount of corrosion of a target material caused exposure to a fluid, over a period of time, utilizing a corrosion measuring device, including a resonator having a first surface area made of a material having a corrosion profile like that of the target material and having a second surface area made of material having a corrosion profile unlike that of the target material; and a transducer assembly, positioned to drive the resonator and sense resultant resonator motion, thereby producing a sense signal. In the method, the resonator is exposed to the target fluid over the period of time and the sense signal is analyzed over the period of time to determine changes in how the resonator responds to being driven by the transducer assembly, over time.

公开(公告)号：US20190003947A1

公开(公告)日：2019-01-03

申请号：US15566675

申请日：2016-04-14

申请人： RHEONICS GMBH

发明人： JOSEPH H. GOODBREAD ,  SUNIL KUMAR ,  KLAUS HAEUSLER ,  BERNHARD ZYBACH

IPC分类号： G01N9/00

摘要： A fluid density measurement device (8) that includes a housing (54), defining a chamber (18) and an aperture; a resonator (10′) having length that is at least 5 times greater than its smallest diameter and having a longitudinal axis and a nodal plane, transverse to the longitudinal axis. The resonator further includes tube (44) having a first end and a second end; a second-end closure (52), closing the second end; and a drive rod (48) centrally attached to the second-end closure and extending to the tube first end. Further, the device includes a resonator transducer assembly (22) and the resonator is sealingly joined to the aperture at the nodal plane, so that an enclosed portion (10A′) extends into the chamber and an exposed portion (10B′) extends outside of the chamber, and wherein the chamber tends to assume the temperature of the exposed resonator portion, causing the resonator to be isothermal.

公开(公告)号：US20180120217A1

公开(公告)日：2018-05-03

申请号：US15567017

申请日：2016-04-18

申请人： Rheonics GmbH

发明人： JOSEPH H. GOODBREAD ,  SUNIL KUMAR ,  KLAUS HAEUSLER

IPC分类号： G01N17/04 ,  G01N29/12

CPC分类号： G01N17/04 ,  G01N29/022 ,  G01N29/036 ,  G01N29/265 ,  G01N2291/0258 ,  G01N2291/02818 ,  G01N2291/0426 ,  G01N2291/0427

摘要： A method of measuring the amount of corrosion of a target material caused exposure to a fluid, over a period of time, utilizing a corrosion measuring device, including a resonator having a first surface area made of a material having a corrosion profile like that of the target material and having a second surface area made of material having a corrosion profile unlike that of the target material; and a transducer assembly, positioned to drive the resonator and sense resultant resonator motion, thereby producing a sense signal. In the method, the resonator is exposed to the target fluid over the period of time and the sense signal is analyzed over the period of time to determine changes in how the resonator responds to being driven by the transducer assembly, over time.