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    Coil arrangement, and electrochemical switch, respectively measurement transmitter, formed therewith
    4.
    发明授权
    Coil arrangement, and electrochemical switch, respectively measurement transmitter, formed therewith 有权

    公开(公告)号：US10591513B2

    公开(公告)日：2020-03-17

    申请号：US15315034

    申请日：2015-05-27

    Applicant: Endress + Hauser Flowtec AG

    Inventor： Adrian Brunner ,  Matthias Brudermann ,  Christoph Werle

    IPC: G01R15/18 ,  H01H47/32 ,  H01H50/18 ,  H01H50/44

    Abstract: A coil arrangement has an electrical coil and an armature movable between a first and second end positions, an electronic switch switchable between at least two switch states, a control and monitoring circuit for producing a switching signal actuating the electronic switch and an operating circuit for providing an operating voltage and an electrical current measurement signal representing an electrical current flowing as a function of time in a coil electrical current circuit formed with the coil. The control and monitoring circuit is adapted to detect whether an inductance of the coil has a dependence on the switching signal as a function of time. The electromechanical has a first switch contact movable between first and second switch positions, a second switch contact and a coil arrangement of the invention, while the measurement transmitter has also a measuring circuit for receiving at least one transducer signal.

    Circuit for Signal Transfer and Galvanic Isolation
    5.
    发明申请
    Circuit for Signal Transfer and Galvanic Isolation 审中-公开
    信号传输和电隔离电路

    公开(公告)号：US20150222241A1

    公开(公告)日：2015-08-06

    申请号：US14422305

    申请日：2013-07-26

    Applicant: Endress + Hauser Flowtec AG

    Inventor： Matthias Brudermann ,  Daniel Kollmer ,  Christoph Werle

    IPC: H03H7/00 ,  H04B5/00

    CPC classification number: H03H7/004 ,  H04B5/0031 ,  H04L25/0266

    Abstract: A circuit for signal transfer and galvanic isolation between first and second digital signal processing units, wherein a first signal path is provided between the first and second signal processing units. The first signal path has a first section, which includes positive and negative signal lines and serves for transfer of a differential signal between the first and second signal processing units. At least one capacitor is provided in the positive signal line and at least one capacitor in the negative signal line. The capacitors serve for galvanic isolation between the first signal processing unit and the second signal processing unit, and the capacitors are embodied, in each case, according to the specifications of the ignition protection type, intrinsic safety.

    Abstract translation: 一种用于第一和第二数字信号处理单元之间的信号传输和电流隔离的电路，其中在第一和第二信号处理单元之间提供第一信号路径。 第一信号路径具有包括正和负信号线的第一部分，并且用于在第一和第二信号处理单元之间传送差分信号。 在正信号线中提供至少一个电容器和负信号线中的至少一个电容器。 这些电容器用于第一信号处理单元和第二信号处理单元之间的电隔离，并且在每种情况下，根据点火保护类型的规格，本质安全性实施电容器。

    Coil Arrangement, and Electrochemical Switch, Respectively Measurement Transmitter, Formed Therewith
    9.
    发明申请
    Coil Arrangement, and Electrochemical Switch, Respectively Measurement Transmitter, Formed Therewith 审中-公开

    公开(公告)号：US20170199231A1

    公开(公告)日：2017-07-13

    申请号：US15315034

    申请日：2015-05-27

    Applicant: Endress + Hauser Flowtec AG

    Inventor： Adrian Brunner ,  Matthias Brudermann ,  Christoph Werle

    IPC: G01R15/18 ,  H01H50/18 ,  H01H50/44 ,  H01H47/32

    CPC classification number: G01R15/183 ,  H01H47/001 ,  H01H47/002 ,  H01H47/32 ,  H01H47/325 ,  H01H50/18 ,  H01H50/44 ,  H01H2047/009

    Abstract: A coil arrangement comprises an electrical coil and an armature movable between a first end position (I) and a second end position, an electronic switch switchable between at least two switch states, a control and monitoring circuit for producing a switching signal actuating the electronic switch and an operating circuit for providing an operating voltage and an electrical current measurement signal representing an electrical current flowing as a function of time in a coil electrical current circuit formed with the coil. The control and monitoring circuit is additionally adapted using the electrical current measurement signal to perform a checking of the coil, for example, namely to detect, whether an inductance, of the coil has a dependence on the switching signal as a function of time, respectively a behavior as a function of time corresponding with the switching signal as a function of time. The electromechanical switch, in turn, comprises a first switch contact movable between a first switch position and a second switch position, a second switch contact and, for actuating the switch contact, a coil arrangement of the invention, while the measurement transmitter comprises, besides such an electromechanical switch, also a measuring circuit for receiving at least one transducer signal dependent on a physical or chemical, measured variable and/or representing the measured variable as a function of time.

    Field Device having a Protection Circuit
    10.
    发明申请
    Field Device having a Protection Circuit 审中-公开
    具有保护电路的现场设备

    公开(公告)号：US20160072278A1

    公开(公告)日：2016-03-10

    申请号：US14782646

    申请日：2014-02-17

    Applicant: ENDRESS+HAUSER FLOWTEC AG

    Inventor： Daniel Kollmer ,  Matthias Brudermann ,  Frank Bonschab ,  Heinz Muller ,  Nikolai Fink

    IPC: H02H9/02

    CPC classification number: H02H9/02 ,  H02H9/008 ,  H04L12/40 ,  H04L25/0266 ,  H04L2012/4026

    Abstract: A field device comprising a protection circuit between a communication interface and a signal processing unit. A communication interface is preferably an Ethernet connection of the field device, wherein between the communication interface and the signal processing unit a first system is provided, which serves for electrical current limiting, wherein between the first system for electrical current limiting and the signal processing unit a means is provided, which serves for voltage limiting, and wherein between the means for voltage limiting and the signal processing unit a second system is provided, which serves for energy limiting.

    Abstract translation: 一种现场设备，包括通信接口和信号处理单元之间的保护电路。 通信接口优选地是现场设备的以太网连接，其中在通信接口和信号处理单元之间提供用于电流限制的第一系统，其中在第一电流限制系统和信号处理单元之间 提供了用于电压限制的装置，并且其中在用于电压限制的装置和信号处理单元之间提供了用于能量限制的第二系统。

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