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    PRESSURE SENSOR FAULT DETECTION
    4.
    发明申请
    PRESSURE SENSOR FAULT DETECTION 审中-公开
    压力传感器故障检测

    公开(公告)号：WO2007089463A2

    公开(公告)日：2007-08-09

    申请号：PCT/US2007001576

    申请日：2007-01-22

    Applicant: ROSEMOUNT INC ,  HARASYN DONALD E ,  WILLCOX CHARLES R ,  KLOSINSKI ANDREW J

    Inventor： HARASYN DONALD E ,  WILLCOX CHARLES R ,  KLOSINSKI ANDREW J

    CPC classification number: G01L27/007 ,  G01L9/12

    Abstract: A diagnostic system for a pressure sensor (56) having a cavity (132,134) configured to receive on applied pressure is provided. The cavity (132,134) has a first and a second wall. A deflectable diaphragm (106) is positioned in the cavity and configured to form a first and a second capacitance with the first wall and a third and a fourth capacitance with the second wall which change in response to the applied pressure . The capacitances form a first transfer function and a second transfer function. Changes in the first transfer function relative to the second transfer function are detected to provide a diagnostic output.

    Abstract translation: 提供一种用于压力传感器（56）的诊断系统，其具有构造成在施加的压力下接收的空腔（132,134）。 空腔（132,134）具有第一和第二壁。 可偏转隔膜（106）定位在空腔中并且被配置为与第一壁形成第一和第二电容，并且第三和第四电容与第二壁响应于所施加的压力而改变。 电容形成第一传递函数和第二传递函数。 检测第一传递函数相对于第二传递函数的变化以提供诊断输出。

    PRESSURE TRANSMITTER WITH IMPROVED ISOLATOR SYSTEM
    5.
    发明申请
    PRESSURE TRANSMITTER WITH IMPROVED ISOLATOR SYSTEM 审中-公开
    具有改进隔离系统的压力变送器

    公开(公告)号：WO0184101A3

    公开(公告)日：2002-05-30

    申请号：PCT/US0113993

    申请日：2001-05-01

    Applicant: ROSEMOUNT INC

    Inventor： NORD CHRISTINA A ,  HORKY DAVID A ,  GUTTSEN KENNETH G ,  JOHNSON THOMAS E ,  SHERIN MATTHEW G ,  SZAFRANSKI KEVIN P ,  BALLOT WILLIAM J ,  PATRICK RENAE M ,  HARASYN DONALD E ,  EIDENSCHINK RYAN R ,  SCHANSBERG TODD W ,  ROMO MARK G ,  BEHM STEVEN M ,  LOUWAGIE BENNETT L ,  HEDTKE ROBERT C ,  RUD STANLEY E JR ,  BREKKEN JEFFREY C

    IPC: G01L19/06 ,  G01L19/00

    CPC classification number: G01L19/0645 ,  G01L19/0618 ,  G01L19/0663

    Abstract: A pressure transmitter (10) with a fluid isolator (11) that includes a sensor tube (38) and a fill tube (50) that have "D" shaped ends (40, 54) that connect together in a port (18) internal to the transmitter (10). The shaped ends (40, 54) can be brazed into the port (18) for sealing. Fitting both the sensor tube (38) and the fill tube (50) in the same port provides a low cost isolator with reduced isolator liquid volume. The fluid isolator (11) has an isolator diaphragm (96) with a central diaphragm region (100) overlying a central backing plate (94) that includes an annular groove (111). The annular groove (111) avoids slow response of the isolator (11) after an overpressure condition.

    Abstract translation: 一种具有流体隔离器（11）的压力变送器（10），其包括传感器管（38）和填充管（50），所述传感器管（38）和填充管（50）具有在内部端口（18）中连接在一起的“D”形端 到发射机（10）。 成形端部（40,45）可以钎焊到端口（18）中用于密封。 将传感器管（38）和填充管（50）同时配合在同一个端口，提供了一种具有降低的隔离液体积的低成本隔离器。 流体隔离器（11）具有隔离隔膜（96），其中央隔膜区域（100）覆盖在包括环形凹槽（111）的中央背板（94）上。 环形槽（111）避免了超压状态后隔离器（11）的响应缓慢。

    LINE PRESSURE MEASUREMENT USING DIFFERENTIAL PRESSURE SENSOR
    6.
    发明申请
    LINE PRESSURE MEASUREMENT USING DIFFERENTIAL PRESSURE SENSOR 审中-公开
    使用差压传感器的线压测量

    公开(公告)号：WO2006130425A8

    公开(公告)日：2007-04-26

    申请号：PCT/US2006020254

    申请日：2006-05-25

    Applicant: ROSEMOUNT INC ,  HARASYN DONALD E ,  WILLCOX CHARLES R

    Inventor： HARASYN DONALD E ,  WILLCOX CHARLES R

    IPC: G01L9/00 ,  G01L9/12

    CPC classification number: G01L9/0072 ,  G01L13/025

    Abstract: A pressure sensor assembly (56) for sensing a pressure of a process fluid includes a sensor body (220) having a cavity (132,134) formed therein to couple to a process fluid pressure. A deflectable diaphragm (100) in the cavity deflects in response to the first and second process fluid pressures . A first primary electrode (144) couples to a wall (126) of the cavity and forms a first primary capacitor (Mx) between the first primary electrode and the deflectable diaphragm. A first secondary electrode (146) couples to the wall of the cavity to form a first secondary capacitor (Rx) between the first secondary electrode and the deflectable diaphragm. A second primary electrode (148) and second secondary electrode (150) are preferably coupled to a wall (128) of the cavity opposite the first. Line pressure of the process fluid is determined based upon variation in the secondary capacitors relative to the primary capacitors .

    Abstract translation: 用于感测过程流体的压力的压力传感器组件（56）包括传感器本体（220），其具有形成在其中的空腔（132,134），以耦合到过程流体压力。 空腔中的可偏转隔膜（100）响应于第一和第二工艺流体压力而偏转。 第一主电极（144）耦合到空腔的壁（126），并在第一主电极和可偏转膜片之间形成第一初级电容器（Mx）。 第一次级电极（146）耦合到空腔的壁，以在第一次级电极和可偏转膜片之间形成第一次级电容器（Rx）。 第二主电极（148）和第二辅助电极（150）优选地联接到与第一主电极相对的腔的壁（128）。 基于次级电容器相对于初级电容器的变化确定工艺流体的管路压力。

    PRESSURE SENSOR FAULT DETECTION
    7.
    发明专利
    PRESSURE SENSOR FAULT DETECTION 未知

    公开(公告)号：CA2640412C

    公开(公告)日：2016-04-26

    申请号：CA2640412

    申请日：2007-01-22

    Applicant: ROSEMOUNT INC

    Inventor： HARASYN DONALD E ,  WILLCOX CHARLES R ,  KLOSINSKI ANDREW J

    IPC: G01L27/00 ,  G01L9/00

    Abstract: A diagnostic system for a pressure sensor (56) having a cavity (132, 134) configured to receive on applied pressure is provided. The cavity (132, 134) has a first and a second wall. A deflectable diaphragm (106) is positioned in the cavity and configured to form a first and a second capacitance with the first wall and a third and a fourth capacitance with the second wall which change in response to the applied pressure. The capacitances form a first transfer function and a second transfer function. Changes in the first transfer function relative to the second transfer function are detected to provide a diagnostic output.

    LINE PRESSURE MEASUREMENT USING DIFFERENTIAL PRESSURE SENSOR
    8.
    发明专利
    LINE PRESSURE MEASUREMENT USING DIFFERENTIAL PRESSURE SENSOR 未知

    公开(公告)号：CA2609010C

    公开(公告)日：2015-04-28

    申请号：CA2609010

    申请日：2006-05-25

    Applicant: ROSEMOUNT INC

    Inventor： HARASYN DONALD E ,  WILLCOX CHARLES R

    IPC: G01L9/00 ,  G01L9/12

    Abstract: A pressure sensor assembly (56) for sensing a pressure of a process fluid includes a sensor body (220) having a cavity (132,134) formed therein to couple to a process fluid pressure. A deflectable diaphragm (100) in the cavity deflects in response to the first and second process fluid pressures . A first primary electrode (144) couples to a wall (126) of the cavity and forms a first primary capacitor (Mx) between the first primary electrode and the deflectable diaphragm. A first secondary electrode (146) couples to the wall of the cavity to form a first secondary capacitor (Rx) between the first secondary electrode and the deflectable diaphragm. A second primary electrode (148) and second secondary electrode (150) are preferably coupled to a wall (128) of the cavity opposite the first. Line pressure of the process fluid is determined based upon variation in the secondary capacitors relative to the primary capacitors .

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