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    VERFAHREN ZUR BESTIMMUNG ODER ÜBERWACHUNG EINES VORBESTIMMTEN FÜLLSTANDS, EINER PHASENGRENZE ODER DER DICHTE EINES MEDIUMS
    1.
    发明公开
    VERFAHREN ZUR BESTIMMUNG ODER ÜBERWACHUNG EINES VORBESTIMMTEN FÜLLSTANDS, EINER PHASENGRENZE ODER DER DICHTE EINES MEDIUMS 有权
    方法用于确定或监测预定水平时，一个相LIMIT或介质的密度

    公开(公告)号：EP2438407A1

    公开(公告)日：2012-04-11

    申请号：EP10720005.7

    申请日：2010-04-23

    申请人： Endress+Hauser GmbH+Co. KG

    发明人： FRÜHAUF, Dietmar ,  URBAN, Martin ,  HORTENBACH, Martin ,  RUHNAU, Frank ,  SIEGEL, Michael ,  Brengartner, Tobias

    IPC分类号： G01F23/296 ,  G01N9/00

    CPC分类号： G01F23/2961 ,  G01F23/2967

    摘要： The invention relates to a method and apparatus for determining or monitoring a predetermined filling level, the phase interface or the density of a medium in a container, comprising a vibratable unit, wherein the vibratable unit is disposed at the height of the predetermined filling level, wherein the vibratable unit is stimulated to vibrate by means of a frequency search (sweep) within a predetermined frequency band in the working region of the vibratable unit in a successive manner with subsequent discrete excitation frequencies, wherein the corresponding vibrations of the vibratable unit are received in the form of reception signals, wherein by way of the frequency search the excitation frequency is determined, at which the vibratable unit vibrates at a vibration frequency, which has a given phase shift between the transmission signal and the reception signal, and wherein the transmission/reception unit (S/E) stimulates the vibratable unit to vibrate by means of the determined vibration frequency.

    DRUCKSENSOR MIT INTERFEROMETRISCHEM WANDLER UND DRUCKMESSGERÄT MIT EINEM SOLCHEN DRUCKSENSOR
    2.
    发明公开
    DRUCKSENSOR MIT INTERFEROMETRISCHEM WANDLER UND DRUCKMESSGERÄT MIT EINEM SOLCHEN DRUCKSENSOR 审中-公开
    与干涉转换器和压力监测这样的压力传感器压力传感器

    公开(公告)号：EP2452173A1

    公开(公告)日：2012-05-16

    申请号：EP10727397.1

    申请日：2010-06-22

    申请人： Endress+Hauser GmbH+Co. KG

    发明人： GRITTKE, Udo ,  FRÜHAUF, Dietmar

    IPC分类号： G01L7/08 ,  G01L9/00

    CPC分类号： G01L7/086 ,  G01L9/0079

    摘要： The invention related to a pressure sensor (1) comprising a ceramic main body (2), a measuring membrane (3), which contains Al2O3 and is joined to the main body along a peripheral joint (4) in a pressure-tight manner, at least one sensor interferometer, wherein the at least one sensor interferometer comprises at least one first reflection surface (5, 6) and a second reflection surface (6, 7) for creating a measurement variable-dependent path difference between the first and the second reflection surfaces. The measuring membrane (3) comprises at least one of the reflection surfaces (5, 6, 7), at least one light path (9), through which light can pass through the main body (2) to the first and second reflection surfaces and which runs substantially perpendicular to the first and the second reflection surfaces and perpendicular to the plane of the measuring membrane.

    ELEKTROMAGNETISCHE ANTRIEBS-/EMPFANGSEINHEIT FÜR EIN FELDGERÄT DER AUTOMATISIERUNGSTECHNIK
    3.
    发明公开
    ELEKTROMAGNETISCHE ANTRIEBS-/EMPFANGSEINHEIT FÜR EIN FELDGERÄT DER AUTOMATISIERUNGSTECHNIK 审中-公开
    电磁场自动化技术的电磁驱动/接收装置

    公开(公告)号：EP3274668A1

    公开(公告)日：2018-01-31

    申请号：EP16704246.4

    申请日：2016-02-15

    申请人： Endress+Hauser GmbH+Co. KG

    发明人： KUHNEN, Raphael ,  FRÜHAUF, Dietmar

    IPC分类号： G01F23/296 ,  G01N9/00 ,  G01N11/16

    CPC分类号： G01N29/036 ,  G01F23/2968 ,  G01N9/002 ,  G01N11/16

    摘要： An electromechanical transducer unit (6) for a field device (1) of industrial control and automation, comprising at least: one membrane (9) that can be made to mechanically vibrate; two rods (10a, 10b) secured to the membrane (9) perpendicularly to a main surface of the membrane (9); a housing (8), the membrane (9) forming at least one sub-region of a wall of the housing (8) and the two rods (10a, 10b) extending into the housing interior; two magnets (11 a, 11 b), each magnet (11a,11b) being secured in the respective end region facing away from the membrane (9) of one of the two rods (10a, 10b); and a coil (12) with a core (13), which coil (12) is secured inside the housing (8) above the magnets (11a, 11b) and can be supplied with an electric alternating current signal. The coil (12) is designed to generate a magnetic field, which magnetic field induces mechanical vibrations in the two rods (10a, 10b) by means of the two magnets (11a, 11b) and the two rods (10a, 10b) are secured to the membrane (9) such that vibrations of the two rods (10a, 10b) result in vibrations of the membrane (9). The invention also relates to a device for determining and/or monitoring at least one process variable, said device comprising at least one electromechanical transducer unit according to the invention.

    FELDGERÄT ZUR BESTIMMUNG UND ÜBERWACHUNG EINER PROZESSGRÖßE IN DER PROZESSAUTOMATISIERUNG
    6.
    发明公开
    FELDGERÄT ZUR BESTIMMUNG UND ÜBERWACHUNG EINER PROZESSGRÖßE IN DER PROZESSAUTOMATISIERUNG 有权
    FIELD DEVICE FOR过程自动化确定和监测过程变量

    公开(公告)号：EP2082191A1

    公开(公告)日：2009-07-29

    申请号：EP07803359.4

    申请日：2007-09-10

    申请人： Endress+Hauser GmbH+Co. KG

    发明人： GRITTKE, Udo ,  HUMPERT, Axel ,  FRÜHAUF, Dietmar

    IPC分类号： G01D3/02 ,  G01D9/00

    CPC分类号： H03K19/17752 ,  G01D3/022 ,  G01D18/00 ,  H03K19/17732 ,  H03K19/17756

    摘要： The invention relates to a field device (3) for determining or monitoring a process variable in process automation systems. Said field device consists of a sensor (1), working according to a defined measuring principle, and a control/evaluation unit (2) that processes and evaluates the measurement data supplied by the sensor (1). The control/evaluation unit (2) is at least partially configured as a re-configurable logic device FPGA having a plurality of dynamically re-configurable functional modules (4). An interface (25) is provided via which the control/evaluation unit (2) receives sensor- and application-specific data on a defined sensor type in a respective defined process application. The control/evaluation unit (2) configures the functional modules (4) in accordance with the sensor- and application-specific data in such a manner that the field device (3) is optimally adapted to the process variable to be determined or to be monitored and to the current process application of the field device (3).

    VIBRONISCHER SENSOR MIT EINEM STELLELEMENT
    7.
    发明公开
    VIBRONISCHER SENSOR MIT EINEM STELLELEMENT 审中-公开
    具有控制元件的振动传感器

    公开(公告)号：EP3265762A1

    公开(公告)日：2018-01-10

    申请号：EP16705471.7

    申请日：2016-02-15

    申请人： Endress+Hauser GmbH+Co. KG

    发明人： KUHNEN, Raphael ,  IBRAHIM, Mohd Syafiq Affendi ,  FRÜHAUF, Dietmar

    IPC分类号： G01F23/296 ,  G01N11/16 ,  G01N9/00

    CPC分类号： G01F23/2967 ,  G01F23/2968 ,  G01N9/002 ,  G01N11/16 ,  G01N2009/006

    摘要： The invention relates to a vibronic sensor (1) for monitoring a process variable of a medium (2) in a container (3), at least comprising a unit (4) that can vibrate mechanically, a driving/receiving unit (5), and an electronic unit (6), wherein the unit (4) that can vibrate mechanically has two vibration bars (7, 8) and a control element (13), which is mechanically connected to at least one of the vibration bars (7, 8) and the stiffness of which can be varied, wherein at least one first, outer vibration bar (7) is tubular and coaxially surrounds a second, inner vibration bar (8), wherein each of the two vibration bars (7, 8) is fastened to a common support (9) in such a way that the vibration bar can perform vibrations transversely to the longitudinal direction of the vibration bar, wherein the driving/receiving unit (5) is designed to excite the two vibration bars (7, 8) to oppositely directed, transverse, mechanical, resonant vibrations by means of an electrical excitation signal (U
    a ) and to receive the vibrations of the unit (4) that can vibrate mechanically and to convert said vibrations into an electrical reception signal (U
    e ), wherein the electronic unit (6) is designed to set the stiffness of the control element (13) and to determine the at least one process variable at least from the electrical reception signal (U
    e ), and wherein the control element (13) comprises at least one component (15) composed of a material that has a giant delta-E effect.