公开(公告)号：WO1995008758A1

公开(公告)日：1995-03-30

申请号：PCT/US1994008584

申请日：1994-07-29

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  LOUWAGIE, Bennett, L. ,  MUNSON, Gregory, S. ,  WIKLUND, David, E. ,  ZWEBER, Michael, J. ,  BRODEN, David, A. ,  BISCHOFF, Brian, J. ,  CORPRON, Gary, P.

IPC: G01L19/00

CPC classification number: G01F23/18 ,  G01F1/363 ,  G01F1/50 ,  G01F1/88 ,  G01F15/063 ,  G01L9/045 ,  G01L19/0007 ,  G01L19/0015 ,  G01L19/083

Abstract: A two-wire transmitter (2) senses differential pressure, absolute pressure, and process temperature of a process fluid. The information can be used to provide an output representative of mass flow through a pipe (4). The transmitter (2) has an electronics module housing (14) attached to a sensor module housing (16).

Abstract translation: 两线制变送器（2）感测工艺流体的压差，绝对压力和工艺温度。 该信息可用于提供代表通过管道（4）的质量流量的输出。 发射器（2）具有附接到传感器模块壳体（16）的电子模块壳体（14）。

公开(公告)号：WO1992017756A1

公开(公告)日：1992-10-15

申请号：PCT/US1992002396

申请日：1992-03-24

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  BRODEN, David, A. ,  BISCHOFF, Brian, J. ,  LOUWAGIE, Bennett, L.

IPC: G01L07/08

CPC classification number: G01L9/0073 ,  Y10T29/43

Abstract: A metal thin film (58) bonds a semiconductor bonding region (54, 56) of a diaphragm layer (50) to a ceramic bonding region (44) of a high modulus support block (40). The arrangement isolates a pressure sensing diaphragm (60) from undesired strain, improving sensor accuracy. A passageway (48) through the support block (40) couples the fluid pressure to the sensing diaphragm (60) to deflect it. Capacitive coupling between the diaphragm (60) and a capacitor plate (47) on the support block (40) sense the deflection and provide an output representative of pressure.

公开(公告)号：WO1995023361A1

公开(公告)日：1995-08-31

申请号：PCT/US1995001294

申请日：1995-02-02

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  BISCHOFF, Brian, J. ,  LENZ, Gary, A.

IPC: G05B19/042

CPC classification number: G05B19/0423 ,  G05B2219/25428

Abstract: A transmitter (22) in a process control loop (34) includes a sensor (40) for sensing a process variable. An analog-to-digital converter (42, 44) coupled to the sensor (40) provides a digitized process variable at various sample times. An interface (54) couples the transmitter to the control loop (34) and is used for communicating information and receiving power over the control loop (34). The transmitter (22) includes a clock (52) and a memory (50). A microprocessor (48) coupled to the clock (52) and the memory (50) stores digitized process variables and clock information in the memory (50). The storage is such that the sample time of a stored digitized process variable can be determined.

Abstract translation: 过程控制回路（34）中的发射器（22）包括用于感测过程变量的传感器（40）。 耦合到传感器（40）的模拟 - 数字转换器（42,44）在各种采样时间提供数字化的过程变量。 接口（54）将发射器耦合到控制回路（34），并用于在控制回路（34）上传送信息和接收电力。 发射器（22）包括时钟（52）和存储器（50）。 耦合到时钟（52）和存储器（50）的微处理器（48）将数字化的过程变量和时钟信息存储在存储器（50）中。 存储器可以确定存储的数字化过程变量的采样时间。

公开(公告)号：WO1997025595A1

公开(公告)日：1997-07-17

申请号：PCT/US1996020898

申请日：1996-12-31

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  WIKLUND, David, E. ,  BISCHOFF, Brian, J.

IPC: G01F01/46

CPC classification number: G01F1/46

Abstract: A transmitter (10) in a process control system for measuring flow rate measures total pressure (PTOT) and differential pressure (h) of process fluid flowing through a process pipe. The static pressure (PSTAT) is determined based upon the total pressure (PTOT). The calculated static pressure is used to determine the fluid density ( rho ) and the gas expansion factor (Y1) of the process fluid flowing in the pipe (12). This information is used to calculate flow rate (Q) of the process fluid.

Abstract translation: 用于测量流量的过程控制系统中的变送器（10）测量流过过程管道的工艺流体的总压力（PTOT）和压差（h）。 静压（PSTAT）是根据总压（PTOT）来确定的。 所计算的静压用于确定在管道（12）中流动的工艺流体的流体密度（rho）和气体膨胀系数（Y1）。 该信息用于计算过程流体的流量（Q）。

公开(公告)号：WO1996034264A1

公开(公告)日：1996-10-31

申请号：PCT/US1996005721

申请日：1996-04-24

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  OLSON, Mark, H. ,  JOST, Michael, B. ,  BISCHOFF, Brian, J. ,  MOSER, Thomas, M.

IPC: G01L09/00

CPC classification number: G01L19/148 ,  G01L19/0084 ,  G01L19/0636 ,  G01L19/0645 ,  G01L19/0663 ,  G01L19/143 ,  G01L19/147

Abstract: A pressure transmitter (10) includes an isolator mounting assembly (12, 150) for isolating process fluid from an interior cavity (22) of the pressure transmitter (10). The isolator mounting assembly (12, 150) includes an isolator plug (66, 152) for receiving the process fluid line pressure and coupling the line pressure to a sensor cavity (32) formed by a header (68, 154) joined to a distal end of the plug (66, 152). A ring member (70) is attached to the header (68, 154) and the distal end of the plug (66, 152) to reinforce the joint formed between the isolator plug (66, 152) and the header (68, 154). In another embodiment, the isolator mounting assembly (150) includes a base (154) and a support (181) having first and second opposed ends (190, 202). The first end (190) is rigidly bonded to the pressure sensor (184) while an epoxy joint (200) joins the second end (202) of the support (181) to the base (154).

Abstract translation: 压力变送器（10）包括用于将过程流体与压力变送器（10）的内部空腔（22）隔离的隔离器安装组件（12,150）。 隔离器安装组件（12,150）包括隔离器插头（66,152），用于接收过程流体管线压力，并将管路压力耦合到由连接到远端的集管（68,154）形成的传感器腔（32） 插头（66,152）的端部。 环形构件（70）附接到集管（68,154）和插塞（66,152）的远端，以加强形成在隔离器插头（66,152）和插头（68,154）之间的接头， 。 在另一个实施例中，隔离器安装组件（150）包括具有第一和第二相对端（190,202）的基座（154）和支撑件（181）。 第一端（190）刚性地结合到压力传感器（184），而环氧接头（200）将支撑件（181）的第二端（202）连接到基座（154）。

公开(公告)号：EP0577720B1

公开(公告)日：1996-10-30

申请号：EP92909243.5

申请日：1992-03-24

Applicant: ROSEMOUNT INC.

Inventor： BRODEN, David, A. ,  BISCHOFF, Brian, J. ,  LOUWAGIE, Bennett, L.

IPC: G01L7/08 ,  G01L9/12 ,  G01L9/00

CPC classification number: G01L9/0073 ,  Y10T29/43

Abstract: A metal thin film (58) bonds a semiconductor bonding region (54, 56) of a diaphragm layer (50) to a ceramic bonding region (44) of a high modulus support block (40). The arrangement isolates a pressure sensing diaphragm (60) from undesired strain, improving sensor accuracy. A passageway (48) through the support block (40) couples the fluid pressure to the sensing diaphragm (60) to deflect it. Capacitive coupling between the diaphragm (60) and a capacitor plate (47) on the support block (40) sense the deflection and provide an output representative of pressure.

公开(公告)号：EP0871848B1

公开(公告)日：2003-07-23

申请号：EP96945447.9

申请日：1996-12-31

Applicant: ROSEMOUNT INC.

Inventor： WIKLUND, David, E. ,  BISCHOFF, Brian, J.

IPC: G01F1/46

CPC classification number: G01F1/46

公开(公告)号：EP0871848A1

公开(公告)日：1998-10-21

申请号：EP96945447.0

申请日：1996-12-31

Applicant: ROSEMOUNT INC.

Inventor： WIKLUND, David, E. ,  BISCHOFF, Brian, J.

IPC: G01F1

CPC classification number: G01F1/46

Abstract: A transmitter (10) in a process control system for measuring flow rate measures total pressure (PTOT) and differential pressure (h) of process fluid flowing through a process pipe. The static pressure (PSTAT) is determined based upon the total pressure (PTOT). The calculated static pressure is used to determine the fluid density (ς) and the gas expansion factor (Y1) of the process fluid flowing in the pipe (12). This information is used to calculate flow rate (Q) of the process fluid.

公开(公告)号：EP0824675B1

公开(公告)日：2003-07-09

申请号：EP96913114.3

申请日：1996-04-24

Applicant: ROSEMOUNT INC.

Inventor： OLSON, Mark, H. ,  JOST, Michael, B. ,  BISCHOFF, Brian, J. ,  MOSER, Thomas, M.

IPC: G01L9/00

CPC classification number: G01L19/148 ,  G01L19/0084 ,  G01L19/0636 ,  G01L19/0645 ,  G01L19/0663 ,  G01L19/143 ,  G01L19/147

Abstract: A pressure transmitter (10) includes an isolator mounting assembly (12, 150) for isolating process fluid from an interior cavity (22) of the pressure transmitter (10). The isolator mounting assembly (12, 150) includes an isolator plug (66, 152) for receiving the process fluid line pressure and coupling the line pressure to a sensor cavity (32) formed by a header (68, 154) joined to a distal end of the plug (66, 152). A ring member (70) is attached to the header (68, 154) and the distal end of the plug (66, 152) to reinforce the joint formed between the isolator plug (66, 152) and the header (68, 154). In another embodiment, the isolator mounting assembly (150) includes a base (154) and a support (181) having first and second opposed ends (190, 202). The first end (190) is rigidly bonded to the pressure sensor (184) while an epoxy joint (200) joins the second end (202) of the support (181) to the base (154).

公开(公告)号：EP0746804B1

公开(公告)日：2001-09-05

申请号：EP95908768.5

申请日：1995-02-02

Applicant: ROSEMOUNT INC.

Inventor： BISCHOFF, Brian, J. ,  LENZ, Gary, A.

IPC: G05B19/042

CPC classification number: G05B19/0423 ,  G05B2219/25428

Abstract: A transmitter (22) in a process control loop (34) includes a sensor (40) for sensing a process variable. An analog-to-digital converter (42, 44) coupled to the sensor (40) provides a digitized process variable at various sample times. An interface (54) couples the transmitter to the control loop (34) and is used for communicating information and receiving power over the control loop (34). The transmitter (22) includes a clock (52) and a memory (50). A microprocessor (48) coupled to the clock (52) and the memory (50) stores digitized process variables and clock information in the memory (50). The storage is such that the sample time of a stored digitized process variable can be determined.