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    OIL-LESS DIFFERENTIAL PRESSURE SENSOR
    5.
    发明公开
    OIL-LESS DIFFERENTIAL PRESSURE SENSOR 审中-公开
    ÖLFREIERDIFFERENZDRUCKSENSOR

    公开(公告)号：EP1254356A1

    公开(公告)日：2002-11-06

    申请号：EP01907145.5

    申请日：2001-02-09

    申请人： Rosemount, Inc.

    发明人： WILLCOX, Charles, R. ,  LUTZ, Mark, A. ,  ROMO, Mark, G. ,  RUD, Stanley, E., Jr.

    IPC分类号： G01L9/00

    CPC分类号： G01L9/0007 ,  G01L9/0055 ,  G01L9/0072 ,  G01L9/0073 ,  G01L9/0075 ,  G01L9/0076 ,  G01L11/02 ,  G01L13/026

    摘要： A pressure sensor (10) is provided for measuring a pressure difference between two fluids which does not require isolation fluid. The pressure sensor includes a diaphragm support member (12) having an outer periphery and diaphragms coupled thereto. Movement of the diaphragms (16A, 16B) are the movement of a moveable member (20). The movement can be sensed to determine the applied differential pressure. The coupling member is joined to the outer periphery with a web. The web is recessed from opposed outwardly facing surfaces of the outer periphery, and first and second diaphragms disposed on opposite sides of the diaphragm support member. Each diaphragm is joined to the outer periphery and to the coupling member.

    CORROSION RATE MEASUREMENT WITH MULTIVARIABLE SENSOR
    7.
    发明公开
    CORROSION RATE MEASUREMENT WITH MULTIVARIABLE SENSOR 审中-公开
    用多变量传感器测量腐蚀速率

    公开(公告)号：EP3314235A1

    公开(公告)日：2018-05-02

    申请号：EP16736266.4

    申请日：2016-05-12

    申请人： Rosemount Inc.

    发明人： HEDTKE, Robert, C. ,  WILLCOX, Charles, R.

    IPC分类号： G01N17/00

    CPC分类号： G01N17/04 ,  G01N17/00

    摘要： A corrosion measurement system includes a corrosion sensor having a corrosion sensor output related to corrosion due to exposure to a process fluid. A process variable sensor provides a process variable output related to a process variable of the process fluid. Measurement circuitry coupled to the corrosion sensor and the process variable sensor provides an output related to corrosion based upon the corrosion sensor output and the process variable output

    IN-LINE PROCESS FLUID PRESSURE TRANSMITTER FOR HIGH PRESSURE APPLICATIONS
    8.
    发明公开
    IN-LINE PROCESS FLUID PRESSURE TRANSMITTER FOR HIGH PRESSURE APPLICATIONS 审中-公开
    用于高压应用的在线过程流体压力变送器

    公开(公告)号：EP3278076A1

    公开(公告)日：2018-02-07

    申请号：EP16773855.8

    申请日：2016-03-25

    申请人： Rosemount Inc.

    发明人： STREI, David, M. ,  WILLCOX, Charles, R. ,  PETERSEN, Blake, T. ,  BRODEN, David, A.

    IPC分类号： G01L19/14 ,  F15B5/00 ,  G01L7/02

    CPC分类号： G01L9/0041 ,  B23K31/02 ,  B23K2103/05 ,  G01L19/003 ,  G01L19/086

    摘要： An in-line process fluid pressure transmitter is provided. The transmitter includes a process fluid connector configured to couple to a source of process fluid. A plug is coupled to the process fluid connector and has a passageway configured to convey fluid to a distal end of the plug. A pressure sensor subassembly is coupled to the plug at a weld. The pressure sensor subassembly has a pressure sensor operably coupled to the distal end of the passageway such that the pressure sensor reacts to process fluid pressure. The plug includes a sidewall encircling the weld. Transmitter electronics are coupled to the pressure sensor and configured to measure an electrical characteristic of the pressure sensor and provide a process fluid pressure value based on the measured electrical characteristic.

    CORROSION RATE MEASUREMENT
    9.
    发明公开
    CORROSION RATE MEASUREMENT 审中-公开
    KORROSIONSRATENMESSUNG

    公开(公告)号：EP3117202A1

    公开(公告)日：2017-01-18

    申请号：EP15714072.4

    申请日：2015-03-13

    申请人： Rosemount Inc.

    发明人： HEDTKE, Robert, C. ,  SITTLER, Fred, C. ,  WILLCOX, Charles, R.

    IPC分类号： G01N17/04 ,  G01L13/02 ,  G01L9/00

    CPC分类号： G01N17/043 ,  G01L9/0072 ,  G01L13/025 ,  G01L19/0645 ,  G01N17/04

    摘要： A corrosion rate measurement system includes a first membrane of a first material configured to be exposed to a corrosive material and deflect in response to corrosion. A second membrane is configured to be exposed to a corrosive material and deflect in response to corrosion. A pressure sensor is operably coupled to at least one of the first and second membranes and configured to measure deflection of at least one of the first and second membranes as a function of a pressure and an amount of corrosion at least one of the first and second membranes.

    摘要翻译： 腐蚀速率测量系统包括构造成暴露于腐蚀性材料并响应于腐蚀而偏转的第一材料的第一膜。 第二膜构造成暴露于腐蚀性材料并响应于腐蚀而偏转。 压力传感器可操作地耦合到第一和第二膜中的至少一个，并且被配置为测量作为压力和腐蚀量的函数的第一和第二膜中的至少一个的偏转，第一和第二膜中的至少一个 膜。