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37 条记录 (耗时 0.016 秒)

    LOW POWER TWO-WIRE SELF VALIDATING TEMPERATURE TRANSMITTER
    2.
    发明公开
    LOW POWER TWO-WIRE SELF VALIDATING TEMPERATURE TRANSMITTER 有权
    与自查和低功耗的两芯温度变送器

    公开(公告)号：EP1247268A1

    公开(公告)日：2002-10-09

    申请号：EP00943314.5

    申请日：2000-06-29

    申请人： ROSEMOUNT INC.

    发明人： ERYUREK, Evren

    IPC分类号： G08C19/02

    CPC分类号： G08C19/02

    摘要： A two-wire temperature transmitter (12) is coupleable to a two-wire process control loop for measuring temperature of a process. The transmitter includes an analog to digital converter (20) configured to provide digital output (22) in response to an analog input (24). A two-wire loop communicator (26) is configured to couple to the process control loop (16) and send information on the loop (16). A microprocessor (28) is coupled to the digital output (22) and configured to send temperature related information on the process control loop (16) with the two-wire loop communicator (26). A power supply (30) is configured to completely power the two-wire temperature transmitter (12) with power from the two-wire process control loop. A temperature sensor (34) comprises at least two (16) temperature sensitive elements having element outputs which degrade in accordance (60, 62, 64, 66, 68) with different degradation characteristics. The element outputs are provided to the analog to digital converter (20), such that the microprocessor (28) calculates temperature related information as a function of at least one element output from a first temperature sensitive element (60, 62, 64, 66, 68) and at least as a function of one degradation characteristic of a second temperature sensitive element (60, 62, 64, 66, 68).

    DEVICE IN A PROCESS SYSTEM FOR VALIDATING A CONTROL SIGNAL FROM A FIELD DEVICE
    3.
    发明授权
    DEVICE IN A PROCESS SYSTEM FOR VALIDATING A CONTROL SIGNAL FROM A FIELD DEVICE 失效
    设备用于测试的植物COMING控制信号在过程控制

    公开(公告)号：EP0948759B1

    公开(公告)日：2002-08-07

    申请号：EP97953328.8

    申请日：1997-12-29

    申请人： ROSEMOUNT INC.

    发明人： ERYUREK, Evren

    IPC分类号： G05B19/418 ,  G05B19/042

    CPC分类号： G05B13/0285 ,  G05B19/042 ,  G05B19/418 ,  G05B2219/25428 ,  Y02P90/02 ,  Y02P90/14

    摘要： A device (40) in a process control system (2) includes a memory (48) for storing a series of sensed process variables and command outputs representative of a learned process cycle. Comparison circuitry (80) compares recent process information to learned process information stored in the memory (48) and responsively provides a validity output signal. A method includes learning a cycle of a process to provide learned process information which comprises stored process variables and stored control signals over a time period, measuring a process variable in the process and responsively calculating the control output, storing the process variable in the control output to provide recent process information, and comparing the recent process information to the learned process information and responsively providing a validity output signal.

    TEMPERATURE TRANSMITTER WITH ON-LINE CALIBRATION USING JOHNSON NOISE
    4.
    发明公开
    TEMPERATURE TRANSMITTER WITH ON-LINE CALIBRATION USING JOHNSON NOISE 失效
    结合在线校准温度变压器使用约翰逊噪声

    公开(公告)号：EP0871851A1

    公开(公告)日：1998-10-21

    申请号：EP96945064.0

    申请日：1996-12-19

    申请人： ROSEMOUNT INC.

    发明人： ERYUREK, Evren ,  LENZ, Gary

    IPC分类号： G01K7 ,  G01K15

    CPC分类号： G01K15/00 ,  G01K7/30

    摘要： A temperature transmitter (10) and a process control system includes a sensor input (1, 2, 3, 4) for coupling to a temperature sensor (16) having a temperature dependent resistance. Resistance measuring circuitry (20, 26, 50) couples to the sensor input (1, 2, 3, 4) and provides a resistance output related to resistance of the temperature dependent resistance. Analog to digital conversion circuitry (78, 88) couples to the sensor input (1, 2, 3, 4) and provides a digital output related to AC signals across the sensor input. Digital signal processing circuitry (64) isolates a Johnson noise component of the AC signals and provides a digitized Johnson output. Temperature measurement circuitry provides a calibrated temperature output based upon the resistance output and the digitized Johnson noise output. Output circuitry (24) transmits the calibrated temperature output over the process control loop (11).

    PROCESS DEVICE DIAGNOSTICS USING PROCESS VARIABLE SENSOR SIGNAL
    7.
    发明授权
    PROCESS DEVICE DIAGNOSTICS USING PROCESS VARIABLE SENSOR SIGNAL 有权
    工艺设备故障诊断中的应用依赖于过程的传感器信号

    公开(公告)号：EP1190282B1

    公开(公告)日：2006-09-13

    申请号：EP00937914.0

    申请日：2000-05-30

    申请人： ROSEMOUNT INC.

    发明人： ERYUREK, Evren ,  KAVAKLIOGLU, Kadir ,  ESBOLDT, Steven, R.

    IPC分类号： G05B23/02

    CPC分类号： G05B23/024 ,  G01K15/00 ,  G05B9/03 ,  G07C3/00 ,  G08C19/02

    摘要： Process device diagnostic is provided for diagnosing the condition of a process by receiving a process variable sensor signal (146). The process variable sensor (138) senses vibration noise signals (132) carried in a process fluid of the process. The vibration noise signals (132) are generated by the process, such as by operation of process control elements. The diagnostics isolates the process noise signals (132) in the process variable sensor signal (146) and evaluates the isolated signal to diagnose the process and the process devices.

    DIAGNOSTICS FOR INDUSTRIAL PROCESS CONTROL AND MEASUREMENT SYSTEMS
    8.
    发明授权
    DIAGNOSTICS FOR INDUSTRIAL PROCESS CONTROL AND MEASUREMENT SYSTEMS 有权
    DIAGNOSEFÜRDIE INDUSTRIELLE PROZESSSTEUERUNG UND MESSSYSTEME

    公开(公告)号：EP1390822B1

    公开(公告)日：2005-09-28

    申请号：EP02769691.3

    申请日：2002-05-08

    申请人： Rosemount, Inc.

    发明人： ERYUREK, Evren ,  BORGESON, Dale, W. ,  PELUSO, Marcos ,  ROME, Gregory, H. ,  ROPER, Weston, T.

    IPC分类号： G05B23/02

    CPC分类号： H04L12/40006 ,  G05B23/0213 ,  G05B2219/31129 ,  H04L43/18 ,  H04L2012/4026

    摘要： A field device (20, 200) includes diagnostic circuitry (36) adapted to measure a characteristic related to a process control and measurement system (10). The measured characteristic is used to provide a diagnostic output indicative of a condition of the process control and measurement system (10). The measured characteristic can be provided to a diagnostic module that operates upon the measured characteristic to predict, or otherwise model, a condition of the process control and measurement system (10).

    摘要翻译： 现场设备包括适于测量与过程控制和测量系统相关的特性的诊断电路。 测量的特性用于提供指示过程控制和测量系统的状况的诊断输出。 测量的特性可以提供给诊断模块，该诊断模块根据测量的特性来预测或以其他方式模拟过程控制和测量系统的状况。

    FLOW DIAGNOSTIC SYSTEM
    10.
    发明公开
    FLOW DIAGNOSTIC SYSTEM 有权
    流量诊断系统

    公开(公告)号：EP1407233A1

    公开(公告)日：2004-04-14

    申请号：EP02725990.2

    申请日：2002-05-08

    申请人： ROSEMOUNT INC.

    发明人： ERYUREK, Evren ,  KAVAKLIOGLU, Kadir

    IPC分类号： G01F1/36 ,  G01F25/00

    CPC分类号： G01F1/50 ,  G01F1/363 ,  G01F25/0007 ,  G05B13/0275 ,  G05B21/02 ,  G05D7/0635

    摘要： A flow diagnostic system (100) for a flow sensing element and impulse line (104). A pressure transmitter (102) coupled to the impulse lines (104) provides digital pressure data to a control system (112). The control system (112) provides the pressure data and real time clock readings to a diagnostic application (130,132 or 134). The diagnostic application (130,132 or 134) calculates a difference between current pressure data and its moving average. A condition of the primary element or impulse lines is diagnosed from a current pressure data set relative to an historical data set. The application can run on the control system (112), a remote computer (122) or an ASP application service provider (126).

    摘要翻译： 一种用于流量感测元件和脉冲管线（104）的流量诊断系统（100）。 耦合到脉冲管线（104）的压力变送器（102）将数字压力数据提供给控制系统（112）。 控制系统（112）将压力数据和实时时钟读数提供给诊断应用程序（130,132或134）。 诊断应用（130,132或134）计算当前压力数据与其移动平均值之间的差值。 根据相对于历史数据集的当前压力数据集来诊断主要元素或脉冲线的状况。 该应用可以在控制系统（112），远程计算机（122）或ASP应用服务提供商（126）上运行。