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    PROCESS FIELD DEVICE WITH RADIO FREQUENCY COMMUNICATION
    2.
    发明公开
    PROCESS FIELD DEVICE WITH RADIO FREQUENCY COMMUNICATION 审中-公开
    带有无线电频率通信的过程现场设备

    公开(公告)号：EP2985665A3

    公开(公告)日：2016-06-01

    申请号：EP15183050.2

    申请日：2005-06-21

    申请人： Rosemount Inc.

    发明人： KARSCHNIA, Robert J. ,  WILLCOX, Charles R. ,  BRODEN, David A ,  WESTFIELD, Brian L. ,  ORTH, Kelly M.

    IPC分类号： G05B19/418

    CPC分类号： G05B19/4185 ,  G05B2219/33192 ,  Y02P90/18 ,  Y02P90/86

    摘要： A field device for use in an industrial process control or monitoring system connects to a two-wire process control loop. The loop carries data and provides power to the field device. RF circuitry in the field device is provided for radio frequency communication. A power supply powers the RF circuitry using power received from the two-wire process control loop.

    摘要翻译： 用于工业过程控制或监控系统的现场设备连接到双线过程控制回路。 该循环传送数据并为现场设备供电。 现场设备中的射频电路用于射频通信。 电源使用从双线过程控制回路接收的功率为RF电路供电。

    PROCESS FIELD DEVICE WITH RADIO FREQUENCY COMMUNICATION
    3.
    发明公开
    PROCESS FIELD DEVICE WITH RADIO FREQUENCY COMMUNICATION 审中-公开
    PROZESSFELDVORRICHTUNG MIT FUNKKOMMUNIKATION

    公开(公告)号：EP2985665A2

    公开(公告)日：2016-02-17

    申请号：EP15183050.2

    申请日：2005-06-21

    申请人： Rosemount Inc.

    发明人： KARSCHNIA, Robert J. ,  WILLCOX, Charles R. ,  BRODEN, David A ,  WESTFIELD, Brian L. ,  ORTH, Kelly M.

    IPC分类号： G05B19/418

    CPC分类号： G05B19/4185 ,  G05B2219/33192 ,  Y02P90/18 ,  Y02P90/86

    摘要： A field device for use in an industrial process control or monitoring system connects to a two-wire process control loop. The loop carries data and provides power to the field device. RF circuitry in the field device is provided for radio frequency communication. A power supply powers the RF circuitry using power received from the two-wire process control loop.

    摘要翻译： 用于工业过程控制或监控系统的现场设备连接到两线过程控制回路。 环路携带数据并向现场设备供电。 现场设备中的RF电路被提供用于射频通信。 电源使用从两线制过程控制回路接收的功率为射频电路供电。

    PRESSURE TRANSMITTER WITH OVERPRESSURE PROTECTION
    7.
    发明公开
    PRESSURE TRANSMITTER WITH OVERPRESSURE PROTECTION 审中-公开

    公开(公告)号：EP3356777A1

    公开(公告)日：2018-08-08

    申请号：EP15905518.5

    申请日：2015-09-30

    申请人： Rosemount Inc.

    发明人： FETISOV, Aleksandr Vladimirovich ,  PETUKHOV, Pavel Aleksandrovich ,  CHERKASHINA, Galina Vladimirovna ,  WILLCOX, Charles R.

    IPC分类号： G01L7/08

    CPC分类号： G01L19/0618 ,  G01L9/0064 ,  G01L9/0072 ,  G01L19/0046 ,  G01L19/06

    摘要： A process fluid pressure transmitter is provided. The process fluid pressure transmitter includes a pressure sensor having an electrical characteristic that changes in response to a deformation of the pressure sensor in response to pressure. Measurement circuitry is coupled to the pressure sensor and is configured to provide an indication of the electrical characteristic. An isolation diaphragm is configured to contact the process fluid and deform in response to process fluid pressure. A substantially incompressible fill fluid fluidically couples the isolation diaphragm to the pressure sensor. An overpressure compliant structure is coupled to the fill fluid and is configured to be substantially rigid at pressures below a selected threshold, but to deform in response to pressure above the selected threshold.