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：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.