1.
    发明专利
    未知

    公开(公告)号:BR0014360A

    公开(公告)日:2002-06-11

    申请号:BR0014360

    申请日:2000-09-26

    Applicant: ROSEMOUNT INC

    Abstract: A pressure transmitter with a transmitter housing having an outer wall providing thermal resistance. The outer wall extends from an isothermal island at a first end to a heat sink island at a second end. The isothermal island includes a fluid inlet, and pressure and temperature sensors. The heat sink island includes a primary heat load device that is heat sunk to an outer shell of an electrical connector. The connector contacts carry a current controlled by the transmitter, and a portion of the current is conducted by a primary heat load device. A circuit board controls the current to represent the pressure. A high accuracy, temperature compensated current output represents pressure.

    Pressure sensor and transmitter having a weld ring with a rolling hinge point

    公开(公告)号:GB2354074B

    公开(公告)日:2002-06-05

    申请号:GB0028368

    申请日:1999-04-22

    Applicant: ROSEMOUNT INC

    Abstract: A process control instrument adapted to provide an output indicative of a parameter of a process fluid is disclosed. The process control instrument is designed to be attachable to a flange having a first passageway filled with process fluid. A body of the process control instrument has an opening adjacent to the first passageway adapted to receive process fluid from the first passageway. An isolation diaphragm is positioned in the opening of the body and separates the opening and the first passageway from a second passageway. A weld ring positioned in the opening is adapted to evenly distribute an attachment force across a support surface such that damage to the isolation diaphragm is minimized.

    Thermal management in a pressure transmitter

    公开(公告)号:AU7720200A

    公开(公告)日:2001-04-30

    申请号:AU7720200

    申请日:2000-09-26

    Applicant: ROSEMOUNT INC

    Abstract: A pressure transmitter with a transmitter housing having an outer wall providing thermal resistance. The outer wall extends from an isothermal island at a first end to a heat sink island at a second end. The isothermal island includes a fluid inlet, and pressure and temperature sensors. The heat sink island includes a primary heat load device that is heat sunk to an outer shell of an electrical connector. The connector contacts carry a current controlled by the transmitter, and a portion of the current is conducted by a primary heat load device. A circuit board controls the current to represent the pressure. A high accuracy, temperature compensated current output represents pressure.

    6.
    发明专利
    未知

    公开(公告)号:DE19983169B4

    公开(公告)日:2007-08-02

    申请号:DE19983169

    申请日:1999-04-22

    Applicant: ROSEMOUNT INC

    Abstract: A process control instrument adapted to provide an output indicative of a parameter of a process fluid is disclosed. The process control instrument is designed to be attachable to a flange having a first passageway filled with process fluid. A body of the process control instrument has an opening adjacent to the first passageway adapted to receive process fluid from the first passageway. An isolation diaphragm is positioned in the opening of the body and separates the opening and the first passageway from a second passageway. A weld ring positioned in the opening is adapted to evenly distribute an attachment force across a support surface such that damage to the isolation diaphragm is minimized.

    PRESSURE TRANSMITTER WITH IMPROVED ISOLATOR SYSTEM
    10.
    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

    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。

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