公开(公告)号：WO1984000062A1

公开(公告)日：1984-01-05

申请号：PCT/US1983000891

申请日：1983-06-06

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  MURRAY, Jean, P. ,  BOHN, David, C. ,  BENGTSON, Darroll, D.

IPC: G01F01/58

CPC classification number: G01F1/58

Abstract: An electromagnetic flowmeter (6, 7, 8) for measuring the flow of an electrically eliminate space conductive fluid through a flow system comprises a flow tube (3) adapted to be connected in the flow system for allowing the fluid to flow therethrough. Coils (5a, 5b) supported by the flow tube (3) are energized to provide magnetomotive force to produce a magnetic field, a portion of which interacts with the fluid to produce an electric field within the fluid. Electrodes (9a, 9b) supported by the flow tube (3) receive signals from the electric field representative of flow. The electrodes (9a, 9b) are coupled to a signal processing circuit which processes the signals and transmits an output signal representative of flow to suitable readout equipment. At least one magnetomotive force adjusting means (2a, 2b, 2c, 2d), such as a plurality of coil taps or connections that permit changing the number of energized turns in the coils (5a, 5b) allow selection of a desired magnitude of magnetomotive force to set the magnitude of the magnetic field such that signal variations resulting from manufacturing tolerances of the flow tube (3), coils (5a, 5b) and electrodes (9a, 9b) are substantially compensated for and the signals received by the electrodes (9a, 9b) are compatible with a calibration range of the signal processing circuit (8).

公开(公告)号：WO1983002004A1

公开(公告)日：1983-06-09

申请号：PCT/US1982001656

申请日：1982-11-24

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  FRICK, Roger, L.

IPC: G01L07/08

CPC classification number: G01L19/148 ,  G01L13/025 ,  G01L19/0038 ,  G01L19/0645 ,  G01L19/142 ,  G01L27/002

Abstract: Improved apparatus (16, 17) for conveying fluid pressures to a differential pressure transducer (14). The apparatus (16, 17) comprises a single flange (16) connected to and fluidly coupled to the differential pressure transducer for conveying the fluid pressures thereto. A further improvement comprises incorporating a three valve manifold (17) integral to the single flange for controlling the fluid pressures to the differential pressure transducer (14).

Abstract translation: 改进的用于将流体压力输送到压差传感器（14）的装置（16,17）。 装置（16,17）包括连接到压差传感器并流体耦合到压差传感器的单个凸缘（16），用于将流体压力传送到压力传感器。 进一步的改进包括将用于控制到压差传感器（14）的流体压力的三个阀歧管（17）结合到单个法兰上。

公开(公告)号：WO1998014764A1

公开(公告)日：1998-04-09

申请号：PCT/US1997016821

申请日：1997-09-23

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  PETERSON, Thomas, P.

IPC: G01L19/00

CPC classification number: G01L19/0645

Abstract: A process control instrument (10) 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 (13) having a first passageway (24) filled with process fluid. A body (14) of the process control instrument has an opening (28) adjacent to the first passageway (24) adapted to receive process fluid from the first passageway. A seal (48) positioned in the opening (28) and attached to the body (14) at a seal outer diameter is adapted to prevent process fluid from leaking from the first passageway (24) and the opening (28) past the flange (13).

Abstract translation: 公开了一种适于提供指示过程流体参数的输出的过程控制仪器（10）。 过程控制仪器设计成可附接到具有填充有过程流体的第一通道（24）的凸缘（13）。 过程控制仪器的主体（14）具有邻近第一通道（24）的开口（28），适于从第一通道接收过程流体。 定位在开口（28）中并以密封外径附接到主体（14）的密封件（48）适于防止工艺流体从第一通道（24）和开口（28）泄漏通过凸缘（ 13）。

公开(公告)号：WO1998014763A1

公开(公告)日：1998-04-09

申请号：PCT/US1997017738

申请日：1997-10-01

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  SMITH, Dennis, J.

IPC: G01F23/284

CPC classification number: G01F23/284 ,  G01L19/14

Abstract: An explosion proof electrical feedthrough assembly is provided in a process variable transmitter (10) which has a sensor (32) sensing a process variable and providing a sensor output signal indicative of the process variable. The transmitter (10) also includes a processing circuit (18) coupled to the sensor (32) to receive the sensor output signal and provide a transmitter output signal based on the sensor output signal. The feedthrough assembly includes a terminal block (20) which is coupled to the processing circuit (18) and includes power supply terminal connectors (54, 56) and communication signal connectors (40, 42). The communication signal connectors (40, 42) are arranged generally radially about the power supply terminal connectors (54, 56).

Abstract translation: 一种防爆电馈通组件设置在过程变量发射器（10）中，该过程变量发射器（10）具有感测过程变量并提供表示过程变量的传感器输出信号的传感器（32）。 发射器（10）还包括耦合到传感器（32）的接收传感器输出信号的处理电路（18），并且基于传感器输出信号提供发射器输出信号。 馈通组件包括耦合到处理电路（18）的端子块（20），并且包括电源端子连接器（54,56）和通信信号连接器（40,42）。 通信信号连接器（40,42）围绕电源端子连接器（54,56）大致径向地布置。

公开(公告)号：WO1997005588A1

公开(公告)日：1997-02-13

申请号：PCT/US1996012108

申请日：1996-07-23

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  SCHLESINGER, Morton, L. ,  KYRO, Bruce, E.

IPC: G08C19/02

CPC classification number: G08C19/02

Abstract: A transmitter (12) in a process control system (10) includes isolation circuitry (58) which isolates transmitter electronics (26) from a sensor bridge circuit (32). The isolation circuitry (58) includes high impedance isolators (114, 116) in series with high impedance buffers (106, 108) to electronically isolate the transmitter electronics (26) from the bridge (32). A power supply is isolated using a series of capacitors (174a-c; 178a-c) connected to a periodic signal.

Abstract translation: 过程控制系统（10）中的发射机（12）包括隔离电路（58），其将发射机电子设备（26）与传感器桥接电路（32）隔离。 隔离电路（58）包括与高阻抗缓冲器（106,108）串联的高阻抗隔离器（114,116），以将发射机电子器件（26）与桥接器（32）电隔离。 使用连接到周期信号的一系列电容器（174a-c; 178a-c）来隔离电源。

公开(公告)号：WO1996020393A1

公开(公告)日：1996-07-04

申请号：PCT/US1995016068

申请日：1995-12-12

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  PRICE, Timothy, D.

IPC: G01K01/08

CPC classification number: G01K7/16 ,  G01K3/005

Abstract: A temperature transmitter (10) includes a temperature probe (14), such as an RTD or thermocouple, and a transmitter housing (12). The temperature housing (12) has a first side (16) for coupling to the temperature probe (14) and a second side (18) which carries a plurality of electrical connections (26A, 26B, 26C, 26D). An elongated recess (22) on the first side (16) of the transmitter housing (14) conducts electrical wiring (20A, 20B, 20C, 20D) which connects to the temperature probe (14) in a direction away from the temperature probe (14) and toward the electrical connections (26A, 26B, 26C, 26D) carried on the second side (18) of the transmitter housing (12).

Abstract translation: 温度传感器（10）包括诸如RTD或热电偶的温度探测器（14）和发射器壳体（12）。 温度壳体（12）具有用于耦合到温度探针（14）的第一侧（16）和承载多个电连接（26A，26B，26C，26D）的第二侧（18）。 在变送器壳体（14）的第一侧（16）上的细长的凹部（22）在远离温度探针的方向上传导连接到温度探测器（14）的电线（20A，20B，20C，20D） 并且朝着承载在变送器外壳（12）的第二侧（18）上的电连接（26A，26B，26C，26D）。

公开(公告)号：WO1996010166A1

公开(公告)日：1996-04-04

申请号：PCT/US1995011433

申请日：1995-09-07

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  SCHWARTZ, Bradley, N. ,  KIRKPATRICK, William, R.

IPC: G01K15/00

CPC classification number: G01K7/20 ,  G01K7/13 ,  G01K15/00

Abstract: A transmitter (10) in a process control loop (12) measures temperature. A calibrator (60) includes a known calibration element (64) which is connected to the transmitter (10). Software in the transmitter (10) compares a measured value of the calibration element (64) with the actual value of the calibration element (64) and responsively calibrates the transmitter (10). The calibrator (60) includes a temperature calibration sensor (70) for coupling to a terminal block (14) of the transmitter (10). The temperature calibration sensor (70) provides an actual temperature input to the transmitter (10). The transmitter (10) measures actual temperature of the terminal block (14) and compares actual temperature with a temperature measured by an internal terminal block temperature sensor (34), and responsively calibrates the internal temperature sensor (34).

Abstract translation: 过程控制回路（12）中的发射器（10）测量温度。 校准器（60）包括已连接到发射器（10）的已知校准元件（64）。 发射器（10）中的软件将校准元件（64）的测量值与校准元件（64）的实际值进行比较，并且响应地校准发射器（10）。 校准器（60）包括用于耦合到发射器（10）的端子块（14）的温度校准传感器（70）。 温度校准传感器（70）向发射器（10）提供实际温度输入。 发射机（10）测量端子台（14）的实际温度，并将实际温度与内部端子块温度传感器（34）测量的温度进行比较，并响应校准内部温度传感器（34）。

公开(公告)号：WO1996005483A1

公开(公告)日：1996-02-22

申请号：PCT/US1995009673

申请日：1995-08-01

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  JOHNSON, John, D. ,  KIRKPATRICK, William, R.

IPC: G01D11/24

CPC classification number: H05K5/0213 ,  G01D11/245 ,  H05K5/069

Abstract: A transmitter (100) transmitting a sensed process variable over a conductor (134A, 134B) includes a cylindrical housing (102) having a terminal compartment (110) and an electronics compartment (108) separated by a bulkhead (106). The terminal compartment (110) used for conductor connection is subject to moisture accumulation. An access channel (136) fully intersects an internal surface of terminal compartment (110) such that the access channel (136) drains moisture from the terminal compartment (110) across a range of mounting orientations. The transmitter (100) includes a circuit (104) in the electronics compartment (108) for compensating a process variable and providing the compensated process variable via a feedthrough circuit assembly (142) in the bulkhead (106), which in one embodiment, includes an encapsulated radio frequency interference filter (144), to terminals (132A, 132B) in the terminal compartment (110) for coupling to a conductor (134A, 134B) that is connected to an external controller.

Abstract translation: 在导体（134A，134B）上传输感测到的过程变量的变送器（100）包括具有端子室（110）的圆柱形壳体（102）和由隔板（106）分开的电子室（108）。 用于导体连接的端子室（110）受到水分积聚。 进入通道（136）与端子室（110）的内表面完全相交，使得进入通道（136）在一定范围的安装方向上从端子室（110）排出水分。 发射器（100）包括在电子隔室（108）中的电路（104），用于补偿过程变量，并且经由隔板（106）中的馈通电路组件（142）提供经补偿的过程变量，在一个实施例中，馈送电路组件包括 封装的射频干扰滤波器（144）连接到连接到外部控制器的导体（134A，134B）上的端子室（110）中的端子（132A，132B）。

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：WO1995008757A1

公开(公告)日：1995-03-30

申请号：PCT/US1994008271

申请日：1994-07-22

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  FRICK, Roger, L.

IPC: G01L09/12

CPC classification number: G01L9/0073 ,  G01L9/0086

Abstract: A pressure sensor (40) includes a diaphragm assembly (54A) with a pair of diaphragms (58A, 60A) joined together along a rim and having spaced apart centers to form a cavity (62A) between them. A pressure input (50A) applies a pressurized fluid to external surfaces of the diaphragms. The diaphragm assembly (54A) is connected to a mounting block along a tab (82A) leaving the remainder of the diaphragm (54A) free from solid mounting. Deflection of the diaphragm assembly (54A) is sensed and is related to applied pressure.

Abstract translation: 压力传感器（40）包括具有沿着边缘连接在一起并具有间隔开的中心以在它们之间形成空腔（62A）的一对隔膜（58A，60A）的隔膜组件（54A）。 压力输入（50A）将加压流体施加到隔膜的外表面。 隔膜组件（54A）沿着突片（82A）连接到安装块，离开隔膜（54A）的其余部分不会牢固地安装。 感测到隔膜组件（54A）的偏转，并且与施加的压力有关。