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    DIFFERENTIAL PRESSURE SENSOR WITH LINE PRESSURE MEASUREMENT
    1.
    发明申请
    DIFFERENTIAL PRESSURE SENSOR WITH LINE PRESSURE MEASUREMENT 审中-公开
    带压力测量的差压传感器

    公开(公告)号：WO2011156185A1

    公开(公告)日：2011-12-15

    申请号：PCT/US2011/038688

    申请日：2011-06-01

    Applicant: ROSEMOUNT INC ,  SCHULTE, John, P. ,  TYSON, David, G. ,  KLOSINSKI, Andrew, J.

    Inventor： SCHULTE, John, P. ,  TYSON, David, G. ,  KLOSINSKI, Andrew, J.

    IPC: G01L9/00 ,  G01L13/02 ,  G01L15/00

    CPC classification number: G01L9/0072 ,  G01L13/025 ,  G01L15/00

    Abstract: A pressure sensor assembly for sensing a pressure of a process fluid includes a sensor body (56) having a cavity (132, 134) formed therein and first and second openings to the cavity configured to apply first and second pressures (PI, P2). A diaphragm (106) in the cavity separates the first opening from the second opening and is configured to deflect in response to a differential pressure between the first pressure and the second pressure. A capacitance based deformation sensor (59) is provided and configured to sense deformation of the sensor body in response to a line pressure applied to the sensor body.

    Abstract translation: 用于感测过程流体的压力的压力传感器组件包括具有形成在其中的空腔（132,134）的传感器主体（56），并且被配置为施加第一和第二压力（PI，P2）的空腔的第一和第二开口。 空腔中的隔膜（106）将第一开口与第二开口分开，并且构造成响应于第一压力和第二压力之间的压力而偏转。 基于电容的变形传感器（59）被设置和配置为响应于施加到传感器主体的管线压力来感测传感器主体的变形。

    LOW POWER PHYSICAL LAYER FOR A BUS IN AN INDUSTRIAL TRANSMITTER
    3.
    发明申请
    LOW POWER PHYSICAL LAYER FOR A BUS IN AN INDUSTRIAL TRANSMITTER 审中-公开
    工业变送器中的总线低功率物理层

    公开(公告)号：WO2004023423A2

    公开(公告)日：2004-03-18

    申请号：PCT/US2003/027561

    申请日：2003-09-03

    Applicant: ROSEMOUNT INC.

    Inventor： TRIMBLE, Steven, R. ,  ORTH, Kelly, M. ,  NELSON, Richard, L. ,  TYSON, David, G.

    IPC: G08C19/02

    CPC classification number: G01D11/24

    Abstract: A process variable transmitter (200) connects a serial bus (232) to an accessory load. A supply limiter circuit (234) provides a first supply current limit and provides a stored energy output (236). A recessive driver circuit (238) draws a drive current from the stored energy output (236) and couples the drive current to the serial bus (232). The recessive driver circuit (238) provides a drive current limit. A dominant driver circuit (242) has a dominant state in which it conducts the drive current, and an inactive state in which the drive current is available to the accessory load.

    Abstract translation: 过程变量变送器（200）将串行总线（232）连接到附件负载。 电源限制器电路（234）提供第一电源电流限制并提供储存的能量输出（236）。 隐性驱动器电路（238）从存储的能量输出（236）汲取驱动电流并将驱动电流耦合到串行总线（232）。 隐性驱动器电路（238）提供驱动电流限制。 主导驱动电路（242）具有传导驱动电流的主导状态和驱动电流可用于辅助负载的非主动状态。

    PROCESS TRANSMITTER HAVING A STEP-UP CONVERTER FOR POWERING ANALOG COMPONENTS
    4.
    发明授权
    PROCESS TRANSMITTER HAVING A STEP-UP CONVERTER FOR POWERING ANALOG COMPONENTS 有权
    变压器的过程，靶向变换器，用于后备电源的模拟组件HAVING

    公开(公告)号：EP1177484B1

    公开(公告)日：2008-07-16

    申请号：EP00926425.0

    申请日：2000-04-27

    Applicant: ROSEMOUNT INC.

    Inventor： WESTFIELD, Brian, L. ,  ROPER, Weston, T. ,  TYSON, David, G.

    IPC: G05B19/418 ,  G05B19/042

    CPC classification number: G05B19/042 ,  G05B19/4185

    Abstract: A process transmitter (100) suitable for coupling to a process loop (120) is disclosed. The process transmitter (100) includes a power regulator (210) adapted to receive a power signal on the process loop (120) and to provide a first signal (215) having a first voltage. Digital components (220) of the process transmitter (100) are electrically coupled to the power regulator (210) to receive power from the first signal (215). A step-up converter (230) is electrically coupled to the power regulator (210) and receives the first signal (215). The step-up converter (230) outputs a second signal (235) having a second voltage larger than the first voltage. Analog components (240) of the process transmitter (100) are electrically coupled to the step-up converter (230) to receive power from the second signal (235).

    MULTIPLE DIE INDUSTRIAL PROCESS CONTROL TRANSMITTER
    5.
    发明公开
    MULTIPLE DIE INDUSTRIAL PROCESS CONTROL TRANSMITTER 有权
    具有多层的工业过程控制站

    公开(公告)号：EP1307792A2

    公开(公告)日：2003-05-07

    申请号：EP01952634.2

    申请日：2001-07-12

    Applicant: ROSEMOUNT INC.

    Inventor： ROPER, Weston, R. ,  TYSON, David, G. ,  WESTFIELD, Brian, L. ,  GABOURY, Michael, J.

    IPC: G05B19/042

    CPC classification number: G05B19/4142 ,  G05B19/0423 ,  G05B2219/31121 ,  G05B2219/31126 ,  G05B2219/33197 ,  G05B2219/34309

    Abstract: A two-wire industrial process control transmitter includes a sensor (14), at least two integrated circuits (70, 72), and a level shift circuit (48). The first integrated circuit (70) contains the analog measurement circuit that includes a sensor detection circuit (16) and the analog portion (44) of a digital-to-analog convertor. The second integrated circuit (72) contains the digital system circuit that includes a modem (78) and the digital portion (46) of the analog-to-digital convertor. The first and second Ics may be powered at different voltage levels (Vdda, Vddd) to maximize the power of the analog circuit and improve resolution. Alternatively, the Ics may be powered at the same voltage level (Vddd), but the digital circuits are divided among several stacked dies (120, 122) to minimize the voltage for each digital circuit. In either case, the level shifting circuit (48) shifts the voltage level between the analog and digital circuits.

    DIFFERENTIAL PRESSURE SENSOR WITH LINE PRESSURE MEASUREMENT
    6.
    发明公开
    DIFFERENTIAL PRESSURE SENSOR WITH LINE PRESSURE MEASUREMENT 审中-公开
    本着压力测量差压传感器

    公开(公告)号：EP2580565A1

    公开(公告)日：2013-04-17

    申请号：EP11725284.1

    申请日：2011-06-01

    Applicant: Rosemount, Inc.

    Inventor： SCHULTE, John, P. ,  TYSON, David, G. ,  KLOSINSKI, Andrew, J.

    IPC: G01L9/00 ,  G01L13/02 ,  G01L15/00

    CPC classification number: G01L9/0072 ,  G01L13/025 ,  G01L15/00

    Abstract: A pressure sensor assembly for sensing a pressure of a process fluid includes a sensor body having a cavity formed therein and first and second openings to the cavity configured to apply first and second pressures. A diaphragm in the cavity separates the first opening from the second opening and is configured to deflect in response to a differential pressure between the first pressure and the second pressure. A capacitance based deformation sensor is provided and configured to sense deformation of the sensor body in response to a line pressure applied to the sensor body.

    PROCESS TRANSMITTER HAVING A STEP-UP CONVERTER FOR POWERING ANALOG COMPONENTS
    7.
    发明公开
    PROCESS TRANSMITTER HAVING A STEP-UP CONVERTER FOR POWERING ANALOG COMPONENTS 有权
    变压器的过程，靶向变换器，用于后备电源的模拟组件HAVING

    公开(公告)号：EP1177484A1

    公开(公告)日：2002-02-06

    申请号：EP00926425.0

    申请日：2000-04-27

    Applicant: ROSEMOUNT INC.

    Inventor： WESTFIELD, Brian, L. ,  ROPER, Weston, T. ,  TYSON, David, G.

    IPC: G05B19/418 ,  G05B19/042

    CPC classification number: G05B19/042 ,  G05B19/4185

    Abstract: A process transmitter (100) suitable for coupling to a process loop (120) is disclosed. The process transmitter (100) includes a power regulator (210) adapted to receive a power signal on the process loop (120) and to provide a first signal (215) having a first voltage. Digital components (220) of the process transmitter (100) are electrically coupled to the power regulator (210) to receive power from the first signal (215). A step-up converter (230) is electrically coupled to the power regulator (210) and receives the first signal (215). The step-up converter (230) outputs a second signal (235) having a second voltage larger than the first voltage. Analog components (240) of the process transmitter (100) are electrically coupled to the step-up converter (230) to receive power from the second signal (235).

    MULTIPLE DIE INDUSTRIAL PROCESS CONTROL TRANSMITTER
    9.
    发明授权
    MULTIPLE DIE INDUSTRIAL PROCESS CONTROL TRANSMITTER 有权
    具有多层的工业过程控制站

    公开(公告)号：EP1307792B1

    公开(公告)日：2010-10-27

    申请号：EP01952634.2

    申请日：2001-07-12

    Applicant: ROSEMOUNT INC.

    Inventor： ROPER, Weston, R. ,  TYSON, David, G. ,  WESTFIELD, Brian, L. ,  GABOURY, Michael, J.

    IPC: G05B19/042

    CPC classification number: G05B19/4142 ,  G05B19/0423 ,  G05B2219/31121 ,  G05B2219/31126 ,  G05B2219/33197 ,  G05B2219/34309

    Abstract: A two-wire industrial process control transmitter includes a sensor (14), at least two integrated circuits (70, 72), and a level shift circuit (48). The first integrated circuit (70) contains the analog measurement circuit that includes a sensor detection circuit (16) and the analog portion (44) of a digital-to-analog convertor. The second integrated circuit (72) contains the digital system circuit that includes a modem (78) and the digital portion (46) of the analog-to-digital convertor. The first and second Ics may be powered at different voltage levels (Vdda, Vddd) to maximize the power of the analog circuit and improve resolution. Alternatively, the Ics may be powered at the same voltage level (Vddd), but the digital circuits are divided among several stacked dies (120, 122) to minimize the voltage for each digital circuit. In either case, the level shifting circuit (48) shifts the voltage level between the analog and digital circuits.

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