公开(公告)号：WO1998014854A1

公开(公告)日：1998-04-09

申请号：PCT/US1997017611

申请日：1997-09-30

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  LONGSDORF, Randy, J. ,  EDWARDS, Grant, B. ,  NELSON, Richard, L. ,  PEDERSON, David, L.

IPC: G05B19/42

CPC classification number: G05B19/4185 ,  Y02P90/18

Abstract: A process transmitter communications circuit (20, 96) has link terminals (40) which are coupled to a process link (12), which supplies power to the circuit. A power source (38) is coupled to one of the link terminals and is independent from the power supplied from the process link (12). Communications circuitry (42) is coupled to the power source (38) and link terminals (40), which transmits a transmitter signal over the process link (12), through the link terminals (40). A power sensing component (44) is coupled to at least one of the link terminals (40) and the communications circuitry (42) and senses whether the power supplied by the process link (12) is inadequate to transmit the transmitter signal. A power control component (46) is coupled to the power source (38), the link terminals (40) and the communications circuitry (42) and selectively applies power from the power source (38) to the communications circuitry (42) for transmitting the transmitter signal when the power sensing component (44) senses there is inadequate power supplied by the process link (12).

Abstract translation: 过程变送器通信电路（20,96）具有连接端子（40），该连接端子（40）耦合到处理链路（12），该处理链路为电路供电。 电源（38）耦合到一个链路终端，并且独立于从处理链路（12）提供的电力。 通信电路（42）耦合到通过链路终端（40）通过过程链路（12）发送发射机信号的电源（38）和链路终端（40）。 功率感测组件（44）耦合到链路终端（40）和通信电路（42）中的至少一个，并且感测由过程链路（12）提供的功率是否不足以发送发射机信号。 功率控制部件（46）耦合到电源（38），链路端子（40）和通信电路（42），并且选择性地将来自电源（38）的功率施加到通信电路（42）以用于发射 当功率感测组件（44）感测到由处理链路（12）提供的功率不足时，发射机信号。

公开(公告)号：WO2005033639A2

公开(公告)日：2005-04-14

申请号：PCT/US2004/031678

申请日：2004-09-27

Applicant: ROSEMOUNT INC.

Inventor： LONGSDORF, Randy, J. ,  BLUMEYER, Chad, C.

IPC: G01H1/00

CPC classification number: G05B23/027

Abstract: An process device (12) for use in an industrial process control or monitoring system is configured to couple to a process. A vibration sensor (80) is configured to sense vibrations (70). Diagnostic circuitry (82) provides a diagnostic output based upon the sensed vibrations.

Abstract translation: 用于工业过程控制或监视系统的过程设备（12）被配置为耦合到过程。 振动传感器（80）构造成感测振动（70）。 诊断电路（82）基于感测到的振动提供诊断输出。

公开(公告)号：WO2006104712A2

公开(公告)日：2006-10-05

申请号：PCT/US2006/009604

申请日：2006-03-16

Applicant: ROSEMOUNT INC. ,  LONGSDORF, Randy, J. ,  HUISENGA, Garrie, D. ,  JOHNSON, James, A.

Inventor： LONGSDORF, Randy, J. ,  HUISENGA, Garrie, D. ,  JOHNSON, James, A.

IPC: G08C19/02

CPC classification number: G01R19/2509 ,  G05B19/0425 ,  G05B2219/25189 ,  G05B2219/25428 ,  G08C19/02

Abstract: A process device (12) is configured for coupling to a two wire process control loop (18) . Loop current output circuitry (60) is configured to apply an output current to the two wire process control loop (18) . Loop current verification circuitry (64) is coupled to the two wire process control loop (18) and configured to detect errors in the applied output current. At least a portion of the loop current verification circuitry (64) is independent from the loop current output circuitry (60) .

Abstract translation: 处理装置（12）被配置为耦合到双线过程控制回路（18）。 环路电流输出电路（60）被配置为向两线制过程控制回路（18）施加输出电流。 环路电流验证电路（64）耦合到两线制过程控制回路（18）并被配置为检测所施加的输出电流中的误差。 回路电流检测电路（64）的至少一部分与环路电流输出电路（60）无关。

公开(公告)号：WO2005017851A1

公开(公告)日：2005-02-24

申请号：PCT/US2004/025289

申请日：2004-08-05

Applicant: ROSEMOUNT INC.

Inventor： HUISENGA, Garrie, D. ,  LONGSDORF, Randy, J.

IPC: G08C19/02

CPC classification number: G08C19/02 ,  G01R19/2506 ,  G01R19/2509

Abstract: A process device (12) for use in a process control system includes output circuitry (60) configured to couple to a process control loop (18). The output circuitry controls electrical current through the loop (18). Loop override circuitry (62) is configured to override operation of the output circuitry (60) and set the electrical current in the loop (18) to a desired level.

Abstract translation: 一种用于过程控制系统的过程设备（12）包括被配置为耦合到过程控制回路（18）的输出电路（60）。 输出电路控制通过回路（18）的电流。 环路覆盖电路（62）被配置为覆盖输出电路（60）的操作并将环路（18）中的电流设置到期望的电平。

公开(公告)号：WO1996010734A1

公开(公告)日：1996-04-11

申请号：PCT/US1995012203

申请日：1995-09-12

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  KIELB, John, A. ,  LONGSDORF, Randy, J. ,  EDWARDS, Grant, B. ,  PALAN, Donald, F.

IPC: G01F23/284

CPC classification number: G01F23/284

Abstract: A level sensor (10) for use in a process application measures height (L) of a product (14) in a tank (12). The level meter (10) includes a microwave feedhorn (18) directed into the tank (12), an electronics housing (16) spaced apart from the feedhorn (18) and a microwave waveguide (20) extending therebetween. A microwave transducer (50) in the housing (16) couples to the waveguide (20) and sends and receives microwave signals. A microprocessor (30) in the housing (16) identifies echoes from the microwave signals which are generated and sensed by the microwave transducer (50). The microprocessor (30) determines height (L) of the product (14) based upon a microwave echo from the product (14) and a microwave echo from the feedhorn (18). The microprocessor (30) compensates for the effect of propagation delay through the waveguide (20) on height measurements with the feedhorn echo and provides (18). The microprocessor (30) compensates for the effect of propagation delay through the waveguide (20) on height measurements with the feedhorn echo and provides an output related to height (L) of the product (14) in the tank (12).

Abstract translation: 用于过程应用的液位传感器（10）测量罐（12）中的产品（14）的高度（L）。 液位计（10）包括引导到罐（12）中的微波馈电喇叭（18），与馈电喇叭（18）间隔开的电子器件壳体（16）和在它们之间延伸的微波波导（20）。 壳体（16）中的微波换能器（50）耦合到波导（20）并发送和接收微波信号。 壳体（16）中的微处理器（30）识别由微波换能器（50）产生和感测的微波信号的回波。 微处理器（30）基于来自产品（14）的微波回声和来自馈源（18）的微波回声来确定产品（14）的高度（L）。 微处理器（30）补偿通过波导（20）的传播延迟对带有反馈喇叭回波的高度测量的影响，并提供（18）。 微处理器（30）补偿通过波导（20）的传播延迟对具有馈源喇叭回波的高度测量的影响，并提供与罐（12）中的产品（14）的高度（L）相关的输出。

公开(公告)号：WO2008045258A2

公开(公告)日：2008-04-17

申请号：PCT/US2007/021242

申请日：2007-10-03

Applicant: ROSEMOUNT INC. ,  HUISENGA, Garrie, D. ,  LONGSDORF, Randy, J. ,  LATTIMER, Donald, R.

Inventor： HUISENGA, Garrie, D. ,  LONGSDORF, Randy, J. ,  LATTIMER, Donald, R.

IPC: H04L1/24

CPC classification number: H04L1/24

Abstract: A diagnostic device (50) for coupling to a process control loop (18) includes digital communication circuitry (52) configured to receive a digital communication signal from the process control loop (18). The digital communication signal is a digitally modulated analog signal on the process control loop (18) which is modulated to a plurality of discrete analog signal levels representative of digital values. Diagnostic circuitry (54) diagnoses operation of the process control loop (18) which may include field devices of the process control loop based upon the digitally modulated analog signal.

Abstract translation: 用于耦合到过程控制回路（18）的诊断装置（50）包括配置成从过程控制回路（18）接收数字通信信号的数字通信电路（52）。 数字通信信号是过程控制回路（18）上的数字调制的模拟信号，其被调制到表示数字值的多个离散模拟信号电平。 诊断电路（54）诊断过程控制回路（18）的操作，其可以包括基于数字调制的模拟信号的过程控制回路的现场设备。

公开(公告)号：WO2005124490A1

公开(公告)日：2005-12-29

申请号：PCT/US2005/020010

申请日：2005-06-07

Applicant: ROSEMOUNT INC. ,  PERRY, Dale, H. ,  SCHUMACHER, Mark, S. ,  HUISENGA, Garrie, D. ,  LONGSDORF, Randy, J.

Inventor： PERRY, Dale, H. ,  SCHUMACHER, Mark, S. ,  HUISENGA, Garrie, D. ,  LONGSDORF, Randy, J.

IPC: G05B23/02

CPC classification number: G05B23/0256 ,  Y10T137/0379 ,  Y10T137/0396 ,  Y10T137/7761

Abstract: A Safety Instrumented System (200) for use with a process control system receives pressure of process fluid in the process piping (206). A valve positioner (204) positions a valve (212) which controls flow of process fluid through the process piping (206). The valve positioner (204) is caused to perform a partial stroke of the valve (212) or otherwise introduce a perturbation into the process. A resulting change (214) in sensed pressure due to the perturbation is used to diagnose operation of the process.

Abstract translation: 与过程控制系统一起使用的安全仪表系统（200）接收过程管道（206）中的过程流体的压力。 阀定位器（204）定位控制工艺流体流过过程管道（206）的阀（212）。 导致阀门定位器（204）执行阀门（212）的部分行程，或以其他方式将干扰引入过程。 由于扰动导致的感测压力的结果变化（214）用于诊断过程的操作。

公开(公告)号：WO2005052881A2

公开(公告)日：2005-06-09

申请号：PCT/US2004/037289

申请日：2004-11-08

Applicant: ROSEMOUNT INC.

Inventor： LONGSDORF, Randy, J. ,  DAVIS, Dale, S. ,  HEDTKE, Robert, C. ,  NELSON, Scott, D.

IPC: G08C19/02

CPC classification number: G05B19/0425 ,  G05B9/02 ,  G05B2219/24008 ,  G05B2219/24125 ,  G05B2219/25006 ,  G05B2219/25014 ,  G05B2219/25428

Abstract: A process device (100) is configured to meet a desired Safety Integrity Level (SIL). A device interface (310) is configured to couple to the process device and provide an output related to operation of a component of the process device. A component monitor (314) monitors operation of the component with and identifies a safety event of the component. A safety response module (318) responds to a safety event of the component in accordance with a safety response.

Abstract translation: 处理装置（100）被配置为满足期望的安全完整性水平（SIL）。 设备接口（310）被配置为耦合到过程设备并且提供与处理设备的组件的操作相关的输出。 组件监视器（314）监视组件的操作并识别组件的安全事件。 安全响应模块（318）根据安全响应响应组件的安全事件。

公开(公告)号：WO1993004517A1

公开(公告)日：1993-03-04

申请号：PCT/US1992006595

申请日：1992-08-07

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  LONGSDORF, Randy, J. ,  NELSON, Richard, L.

IPC: H02H09/00

CPC classification number: H02H9/06

Abstract: A protection circuit is provided for protecting sensitive electrical field instruments from a transient voltage strike and for ensuring that the instruments will meet safety approval during high potential voltage testing. The first and second wires (52, 54) of a two-wire circuit are connected to a first and second terminal respectively. A first surge arrestor electrically couples a first path between the first and second terminal. An impedance (100, 102) and a transient suppressor (90) are connected in series and electrically couple a second path between the first and second terminal. The second path is coupled in parallel with the first path between the first and second terminal and is coupled closer to the internal components of the electrical instruments to be protected than is the first path. A second surge arrestor (106) is electrically coupled between the second terminal and ground, and has a higher voltage breakdown potential than the first surge arrestor (94).

Abstract translation: 提供了一种保护电路，用于保护敏感电场仪器免受瞬态电压冲击，并确保仪器在高电压电压测试期间将符合安全认证。 两线电路的第一和第二导线（52,54）分别连接到第一和第二端子。 第一浪涌抑制器电耦合第一和第二端子之间的第一路径。 阻抗（100,102）和瞬态抑制器（90）串联连接并电连接第一和第二端子之间的第二路径。 第二路径与第一和第二端子之间的第一路径并联耦合，并且比第一路径更靠近待保护的电气设备的内部部件耦合。 第二浪涌抑制器（106）电耦合在第二端子和地之间，并且具有比第一电涌放电器（94）更高的电压击穿电位。

公开(公告)号：WO1989003619A1

公开(公告)日：1989-04-20

申请号：PCT/US1988003459

申请日：1988-10-05

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  LONGSDORF, Randy, J.

IPC: H03M01/22

CPC classification number: G08C19/02

Abstract: A threshold detection circuit (30) for improving the output of a two-wire transmitter (10) is disclosed. The transmitter (10) comprises a sensing means (14) which has a sensor (16) responsive to a parameter (12) to be sensed by the transmitter (10) and an excitation means (18) which provides an excitation output to excite the sensor (16). A threshold detection circuit (30) is coupled to the sensor output and provides a detector output representative of an undesired change in excitation output which can produce a sensor output which is not substantially representative of the sensed parameter (12). An output means (24) is coupled to the sensor output and detector output and provides the transmitter output as a function of the sensor output and detector output. A distinctive transmitter output representative of an undesired change in excitation output thus detected is provided, thereby improving the transmitter output.