PRESSURE SENSOR, IN PARTICULAR FOR PRESSURES OF MORE THAN 100 BAR

    公开(公告)号:US20250027828A1

    公开(公告)日:2025-01-23

    申请号:US18684699

    申请日:2022-07-22

    Abstract: A pressure sensor for measuring high pressures includes: a housing having a sealed volume filled with a compressible fill liquid, wherein the housing includes an elastically deflectable diaphragm having a rear side facing the filled volume and a front side opposite the rear side such that the diaphragm transmits a pressure applied to the front side of the diaphragm to the fill liquid; and a measuring unit adapted to ascertain a variable dependent on velocity of sound in the fill liquid and, based on the measured variable, to determine a pressure measured value representing the pressure on the front side of the diaphragm, wherein the fill liquid contains an organic compound, which is present in the fill liquid at a volume fraction of greater than 99%.

    Vibronic mulitsensor
    2.
    发明授权

    公开(公告)号:US12203888B2

    公开(公告)日:2025-01-21

    申请号:US17907808

    申请日:2021-01-28

    Abstract: A device and a method for measuring and/or monitoring at least one process variable of a medium is provided. The device comprises a sensor unit with a mechanically vibrating unit, at least one reflection unit, a piezoelectric element which is attached to the membrane, and an electronic. The device is designed to excite the mechanically vibrating unit to mechanical vibrations using an excitation signal, to receive the mechanical vibrations of the vibrating unit and convert them into a first reception signal, to emit a transmission signal, and to receive a second reception signal. The electronic unit is designed to determine the at least one process variable of the medium based on the first and/or second reception signal.

    Vibronic multisensor
    3.
    发明授权

    公开(公告)号:US12153022B2

    公开(公告)日:2024-11-26

    申请号:US17618329

    申请日:2020-05-06

    Abstract: A device and a method for determining and/or monitoring at least one process variable of a medium include a sensor unit having a mechanically oscillatable unit, at least a first piezoelectric element, a temperature detection unit for determining and/or monitoring a temperature of the medium and an electronics unit. The device is embodied to excite the mechanically oscillatable unit by means of an excitation signal such that mechanical oscillations are executed, to receive mechanical oscillations of the oscillatable unit and convert them into a first received signal, to transmit a transmitted signal and to receive a second received signal. The electronics unit is embodied, based on the first and/or second received signal, to determine the at least one process variable and, based on a third received signal received from the temperature detection unit, to determine the temperature of the medium.

    VIBRONIC SENSOR
    5.
    发明申请

    公开(公告)号:US20230055786A1

    公开(公告)日:2023-02-23

    申请号:US17904411

    申请日:2021-01-28

    Abstract: A device for determining and/or monitoring at least one process variable of a medium in a container includes four, rod-shaped elements arranged on a membrane, three piezoelectric elements and an electronics system, wherein one first and one second rod-shaped element are arranged and configured such that they form a mechanically vibratable unit, wherein the device is configured to excite the vibratable unit via an excitation signal to create mechanical oscillations, to receive the mechanical oscillations of the vibratable unit, to convert them into a first received signal, to transmit a transmitted signal, and to receive a second received signal, and wherein the electronics system is configured to determine the at least one process variable based on the first and/or second received signal.

    PRESSURE TRANSDUCER
    6.
    发明申请

    公开(公告)号:US20250035501A1

    公开(公告)日:2025-01-30

    申请号:US18706963

    申请日:2022-09-27

    Abstract: A pressure transducer having a sensor module comprises a sensor body including a measuring cell chamber, in which a pressure measuring cell is contactable with a pressure via a first hydraulic path filled with a second pressure transfer liquid, and a transfer module for transferring a pressure to the first hydraulic path. The transfer module has, filled with a first pressure transfer liquid, a second hydraulic path, which extends from a process diaphragm through a transfer body to a transfer diaphragm. The transfer diaphragm is secured pressure-tightly on the transfer body. The sensor body is connected pressure-tightly with the transfer body in such a manner that the first hydraulic path is in communication with the transfer diaphragm such that the pressure of the second hydraulic path is transferable through the transfer diaphragm to the first hydraulic path.

    ASSEMBLY OF A FIELD DEVICE FOR DETERMINING OR MONITORING A PHYSICAL OR CHEMICAL PROCESS VARIABLE

    公开(公告)号:US20250003822A1

    公开(公告)日:2025-01-02

    申请号:US18709699

    申请日:2022-09-27

    Abstract: Assembly of a field device for determining or monitoring a physical or chemical process variable of a medium in automation technology, wherein the assembly comprises at least a first component and a second component, which are joined to one another in a connecting region, and wherein, at least in a subregion which in the installed state of the field device is in contact with the medium, at least the second component consists completely of a material selected from the group comprising copper, a silver alloy or a copper alloy with the exception of a nickel-copper alloy.

    VIBRONIC MULTISENSOR
    8.
    发明申请

    公开(公告)号:US20240385025A1

    公开(公告)日:2024-11-21

    申请号:US18695898

    申请日:2022-09-22

    Abstract: A method for determining and/or monitoring a predeterminable fill level of a medium in a containment with a sensor having a sensor unit with a mechanically oscillatable unit in the form of an oscillatory fork and at least one piezoelectric element comprises exciting the sensor unit with an excitation signal such that mechanical oscillations are executed, receiving the mechanical oscillations of the sensor unit and converting such into a first received signal, transmitting a transmitted signal from the sensor unit and receiving a second received signal and ascertaining information concerning the predeterminable fill level of medium in the containment based on the first received signal. Information concerning state of the sensor unit is ascertained based on the second received signal.

    VIBRONIC MULTISENSOR
    9.
    发明申请

    公开(公告)号:US20240377302A1

    公开(公告)日:2024-11-14

    申请号:US18686474

    申请日:2022-07-22

    Abstract: An apparatus for determining and/or monitoring a process variable of a medium comprises a sensor unit having a mechanically oscillatable unit and a first piezoelectric element, wherein the piezoelectric element is in an internal volume of the oscillatable unit, wherein the apparatus is embodied to excite the mechanically oscillatable unit using an excitation signal such that mechanical oscillations are executed, to receive the mechanical oscillations of the oscillatable unit and to convert them into a first received signal, and, based on the first received signal, to determine and/or to monitor the at least one process variable. A coupling element is arranged in the internal volume in such a manner that the coupling element is in mechanical contact with the piezoelectric element.

    Vibronic sensor
    10.
    发明授权

    公开(公告)号:US12181316B2

    公开(公告)日:2024-12-31

    申请号:US17904411

    申请日:2021-01-28

    Abstract: A device for determining and/or monitoring at least one process variable of a medium in a container includes four, rod-shaped elements arranged on a membrane, three piezoelectric elements and an electronics system, wherein one first and one second rod-shaped element are arranged and configured such that they form a mechanically vibratable unit, wherein the device is configured to excite the vibratable unit via an excitation signal to create mechanical oscillations, to receive the mechanical oscillations of the vibratable unit, to convert them into a first received signal, to transmit a transmitted signal, and to receive a second received signal, and wherein the electronics system is configured to determine the at least one process variable based on the first and/or second received signal.

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