公开(公告)号：US11906339B2

公开(公告)日：2024-02-20

申请号：US17599270

申请日：2020-02-14

Applicant: Endress+Hauser Flowtec AG

Inventor： Benjamin Schwenter ,  Marc Werner ,  Claude Hollinger ,  Gebhard Gschwend

IPC: G01F1/84

CPC classification number: G01F1/8427 ,  G01F1/8422

Abstract: The invention relates to a Coriolis measuring transducer of a Coriolis measuring device comprising: at least one measuring tube; at least one exciter; at least two sensors; wherein at least one exciter or at least one sensor has a coil device and a magnet device, wherein the magnet device has a holder and at least a first magnet group and at least a second magnet group, wherein the holder has a body with a body length axis and a first end and a second end wherein the first end has an end surface, wherein the body has three recesses, wherein a central recess is separated, in each case, from an outer recess by, in each case, an intermediate wall, wherein each intermediate wall has an opening, and wherein the first magnet group is arranged in a first opening, and wherein the second magnet group is arranged in a second opening.

公开(公告)号：US11860013B2

公开(公告)日：2024-01-02

申请号：US17288739

申请日：2019-09-20

Applicant: Endress+Hauser Flowtec AG

Inventor： Heinz Rufer ,  Frank Voigt ,  Steffen Ziegler

IPC: G01F1/58

CPC classification number: G01F1/588 ,  G01F1/584 ,  G01F1/586

Abstract: A magnetically inductive flowmeter for determining flow velocity and/or volume flow of a medium includes a measuring tube for conveying the medium, a magnetic field generating device and at least one electrode assembly, which is installed in the measuring tube in such a manner that it forms a galvanic contact with the medium, wherein the electrode assembly has an electrode body, wherein the electrode body is stylus shaped and has a front end surface, wherein a pressure measuring transducer is coupled with the electrode body, and wherein the pressure measuring transducer is contactable with the pressure acting on the front end surface.

公开(公告)号：US11852514B2

公开(公告)日：2023-12-26

申请号：US17299987

申请日：2019-11-11

Applicant: Endress+Hauser Flowtec AG

Inventor： Simon Mariager

IPC: G01F1/58

CPC classification number: G01F1/588

Abstract: A magnetic-inductive flowmeter includes: a measuring tube; a magnetic field generator including a pole shoe for producing in the medium a magnetic field extending perpendicular to the longitudinal direction, wherein the pole shoe subtends a field central angle; and at least two measuring electrode components in galvanic contact with the medium, wherein the measuring electrode components have a circular arc length, which subtends an electrode central angle, wherein the field and electrode central angles are so adapted relative to one another that the flowmeter is insensitive to departures from a rotationally symmetric flow to a degree such that the magnetic-inductive flowmeter has in a test measurement a measurement error of flow velocity and/or a measurement error of volume flow of less than 0.2%.

公开(公告)号：US11841254B2

公开(公告)日：2023-12-12

申请号：US17413334

申请日：2019-11-21

Applicant: Endress+Hauser Flowtec AG

Inventor： Sascha Grunwald ,  Oliver Brumberg ,  Alexander Murray ,  Andreas Berger ,  Achim Wiest

IPC: G01F1/66

CPC classification number: G01F1/662 ,  G01F1/666

Abstract: An ultrasonic transducer arrangement for a clamp-on ultrasonic, flow measuring point includes a plurality of ultrasonic transducers, each adapted to radiate ultrasonic signals into the measuring tube and/or to receive ultrasonic signals emerging from the measuring tube, wherein a first group of first ultrasonic transducers is arranged on a first side of the measuring tube, and a second group of second ultrasonic transducer is arranged on a second side of the measuring tube opposite the first side, wherein at least one first/second ultrasonic transducer is adapted to receive ultrasonic signals of at least one second/first ultrasonic transducer, respectively, wherein adjoining ultrasonic transducers of the first group have, in each case, first separations from one another, and wherein adjoining ultrasonic transducers of the second group have, in each case, second separations from one another.

公开(公告)号：US20230392972A1

公开(公告)日：2023-12-07

申请号：US18249298

申请日：2021-09-13

Applicant: Endress+Hauser Flowtec AG

Inventor： Michael Kirst

IPC: G01F25/10 ,  G01F1/84

CPC classification number: G01F25/10 ,  G01F1/8422 ,  G01F1/8427

Abstract: A measuring transducer has a vibration element, an electromechanical oscillation exciter, and a sensor for registering mechanical oscillations at a first measuring point and providing oscillation signal representing movements of the vibration element, and a housing for the measuring transducer. The oscillation exciter, the first oscillation sensor and the vibration element are arranged within the housing. The method includes positioning a (test-)magnetic for producing a (test-)magnetic field causing vibration for producing a test signal, using the test signal for ascertaining a characterizing number value, which quantifies an oscillation characterizing number, and comparing the characterizing number value with threshold values for the oscillation characterizing number to detect a disturbance of the measuring system, when the characterizing number value exceeds a corresponding threshold value, or has left a value range bounded by the threshold value.

公开(公告)号：US11838041B2

公开(公告)日：2023-12-05

申请号：US17613571

申请日：2020-04-22

Applicant: Endress+Hauser Flowtec AG

Inventor： Lukas Tanner ,  Marc Fiedler

IPC: H04B1/3816

CPC classification number: H04B1/3816

Abstract: Disclosed is an electronic device comprising: a radio module designed to exchange information; an interface device designed to receive a SIM card, the interface device having a data interface, a clock interface, a reset interface and a supply interface designed to supply power to the SIM card; and a circuit board, on which the radio module and the interface device are arranged and electrically connected to one another; characterised in that the radio module has a voltage specification circuit and an associated voltage output, which voltage specification circuit is designed to specify an operating voltage for the SIM card, a fourth electrical connection having a decoupling circuit with power-limited output to the supply interface, which decoupling circuit is designed to decouple the voltage specification and energy supply of the SIM card from one another.

公开(公告)号：US20230341246A1

公开(公告)日：2023-10-26

申请号：US18002225

申请日：2021-06-16

Applicant: Endress+Hauser Flowtec AG

Inventor： Michael Kirst

IPC: G01F1/84 ,  G01F25/10

CPC classification number: G01F1/8431 ,  G01F1/8436 ,  G01F25/10

Abstract: A measuring system includes a vibration-type transducer including a tube and measuring system electronics electrically coupled to a vibration exciter and a sensor assembly, wherein at a drive point, the vibration exciter is positioned such that a drive offset is no more than 3 mm and/or less than 0.5% of the tube length, and wherein a vibration node of a second or higher order, lies within the reference cross-sectional area, and wherein the measuring system electronics is configured to both provide a drive signal with a sinusoidal current having a frequency such that the frequency deviates from a resonant frequency of a vibration mode of a second order naturally intrinsic to the tube by less than 1% of the resonant frequency and/or by less than 1 Hz, and to perform a self-diagnosis of the measuring system based on a corresponding signal component of at least one vibration measurement signal.

公开(公告)号：US11788875B2

公开(公告)日：2023-10-17

申请号：US16629071

申请日：2018-06-19

Applicant: Endress+Hauser Flowtec AG

Inventor： Hao Zhu ,  Rémy Scherrer

IPC: G01F1/84

CPC classification number: G01F1/8477 ,  G01F1/8422 ,  G01F1/8427 ,  G01F1/8436

Abstract: Disclosed is a measurement pickup for determining the mass flow rate of a liquid comprising: at least one measurement tube for carrying the liquid having an inlet-side end section and an outlet-side end section; a support body on which the measurement tube is mounted an exciter for exciting vibrations of the measurement tube; at least one vibration sensor for detecting vibrations of the measurement tube; an operating and evaluation circuit for driving the exciter, for receiving the signals of the vibration sensor, and for ascertaining a measured value representing the mass flow rate. The operating and evaluation circuit comprises an adaptive low-pass filter for filtering the sequence of measured values representing the mass flow rate, wherein the low-pass filter has at least one filter parameter dependent on at least one adaptive controlled variable that, for its part, is dependent on the gas content of the test medium.

公开(公告)号：US11711092B2

公开(公告)日：2023-07-25

申请号：US17756124

申请日：2020-11-09

Applicant: Endress+Hauser Flowtec AG

Inventor： Jannis Kappertz ,  Alexander Stutz ,  Markus Wucher

IPC: H03M1/12 ,  H03K7/04 ,  H04L25/03

CPC classification number: H03M1/1255 ,  H03K7/04 ,  H04L25/03006

Abstract: A method for determining an inverse impulse response of a communication channel by means of a PAM receiver comprises the following method steps: switching on the PAM receiver; if a second PAM transceiver is switched on, setting a difference between a clock frequency of the data signal and a sampling frequency of the first PAM transceiver; comparing a symbol that is output by the interpreter with a state that is supplied to the interpreter, and outputting an error value, wherein in each case a symbol associated with a sampling clock is compared with a state associated with the same sampling clock; adapting m filter coefficients of the equalizer to minimize error values; repeating the third method step and the fourth method step until an error limit value is reached.

公开(公告)号：US20230221157A1

公开(公告)日：2023-07-13

申请号：US17997888

申请日：2021-04-19

Applicant: Endress+Hauser Flowtec AG

Inventor： Ennio Bitto ,  Martin Josef Anklin ,  Benjamin Schwenter

IPC: G01F1/84

CPC classification number: G01F1/8431 ,  G01F1/8422 ,  G01F1/8427 ,  G01F1/8477 ,  G01N9/32

Abstract: The present disclosure relates to a method for putting a Coriolis flow meter into operation, in particular a Coriolis flow meter for pharmaceutical bioprocess applications, the method comprising the method steps of: inserting the measuring tube arrangement into the receptacle of the carrier device; causing the measuring tube to vibrate by means of the excitation signal arriving at the vibration exciter and provided by the operating circuit; determining a measurement value of a state variable that is used as a measure for checking whether the measuring tube in the carrier device is in a steady state; and determining the mass flow rate measurement value when a difference between the measurement value of the state variable and a reference value of a reference variable lies below an upper limit value and exceeds a lower limit value.