PREDICTION OF ERROR MAGNITUDE IN A PRESSURE TRANSMITTER
    1.
    发明申请
    PREDICTION OF ERROR MAGNITUDE IN A PRESSURE TRANSMITTER 审中-公开
    压力变送器中误差检测的预测

    公开(公告)号:WO0116571A9

    公开(公告)日:2002-09-06

    申请号:PCT/US0023402

    申请日:2000-08-25

    Applicant: ROSEMOUNT INC

    CPC classification number: G01L27/007 G01D3/022 G01D18/008 G01L19/0092

    Abstract: A pressure transmitter (50) with an output (88) predicting the magnitude of error in the pressure transmitter's output (57). A pressure sensor (72) is adapted to sense a process pressure (74). A controller (76) coupled to the pressure sensor (72) generates a transmitter output (78) representing the process pressure (74). A memory (80) stores predetermined data predicting magnitudes (82) of transmitter output error as a function of cumulative excessive sensor output levels, and also stores a record of cumulative excessive sensor output levels (86). The controller (76) calculates a predicted present magnitude of transmitter output error as a function of the accumulated record and the predetermined data, and generates the prediction output (88).

    Abstract translation: 具有预测压力变送器输出(57)中的误差大小的输出(88)的压力变送器(50)。 压力传感器(72)适于感测过程压力(74)。 耦合到压力传感器(72)的控制器(76)产生表示过程压力(74)的变送器输出(78)。 存储器(80)存储预测数据,该预定数据预测发射器输出误差的大小(82)作为累积过量传感器输出电平的函数,并且还存储累积过量传感器输出电平(86)的记录。 控制器(76)根据累积记录和预定数据计算发射机输出误差的预测当前幅度,并产生预测输出(88)。

    TWO-WIRE FIELD-MOUNTED PROCESS DEVICE
    2.
    发明申请
    TWO-WIRE FIELD-MOUNTED PROCESS DEVICE 审中-公开
    双线现场安装工艺设备

    公开(公告)号:WO0188644A2

    公开(公告)日:2001-11-22

    申请号:PCT/US0114719

    申请日:2001-05-08

    Applicant: ROSEMOUNT INC

    Abstract: A two-wire field-mounted process device (16) with multiple isolated channels includes a channel that can be an input channel or an output channel. The given input or output channel can be coupled to multiple sensors or actuators (32, 34), respectively. The process device (16) is wholly powered by the two-wire process control loop (14). The process device (16) includes a controller (40) adapted to measure one or more characteristics of sensors (20, 22, 24, 26, 28, 30) coupled to an input channel (42, 44, 46) and to control actuators coupled to an output channel (48). The controller can be further adapted to execute a user generated control algorithm relating process input information with process output commands. The process device also includes a loop communicator (36) that is adapted to communicate over the two-wire loop.

    Abstract translation: 具有多个隔离通道的双线现场安装处理装置(16)包括可以是输入通道或输出通道的通道。 给定的输入或输出通道可以分别耦合到多个传感器或致动器(32,34)。 处理装置(16)由两线制过程控制回路(14)完全供电。 处理装置(16)包括适于测量耦合到输入通道(42,44,46)的传感器(20,22,24,26,28,30)的一个或多个特性的控制器(40),并且控制致动器 耦合到输出通道(48)。 控制器还可以适于执行用于生成的控制算法,其将过程输入信息与过程输出命令相关联。 处理装置还包括适于通过双线环通信的环路通信器(36)。

    3.
    发明专利
    未知

    公开(公告)号:BR0110762B1

    公开(公告)日:2014-07-08

    申请号:BR0110762

    申请日:2001-05-08

    Applicant: ROSEMOUNT INC

    Abstract: A two-wire field-mounted process device (16) with multiple isolated channels includes a channel that can be an input channel or an output channel. The given input or output channel can be coupled to multiple sensors or actuators (32, 34), respectively. The process device (16) is wholly powered by the two-wire process control loop (14). The process device (16) includes a controller (40) adapted to measure one or more characteristics of sensors (20, 22, 24, 26, 28, 30) coupled to an input channel (42, 44, 46) and to control actuators coupled to an output channel (48). The controller can be further adapted to execute a user generated control algorithm relating process input information with process output commands. The process device also includes a loop communicator (36) that is adapted to communicate over the two-wire loop.

    Field transmitter for storing information

    公开(公告)号:SG50698A1

    公开(公告)日:1998-07-20

    申请号:SG1996009047

    申请日:1995-02-02

    Applicant: ROSEMOUNT INC

    Abstract: A transmitter in a process control loop includes a sensor for sensing a process variable. An analog-to-digital converter coupled to the sensor provides a digitized process variable at various sample times. An interface couples the transmitter to the control loop and is used for communicating information and receiving power over the control loop. The transmitter includes a clock and a memory. A microprocessor coupled to the clock and the memory stores digitized process variables and clock information in the memory. The storage is such that the sample time of a stored digitized process variable can be determined.\!

    TRANSMISOR CON COMPENSACION MEJORADA.

    公开(公告)号:MX9602017A

    公开(公告)日:1997-05-31

    申请号:MX9602017

    申请日:1995-01-17

    Applicant: ROSEMOUNT INC

    Abstract: Un circuito (58) para compensar las variables en un transmisor (2) de medicion. Dentro del transmisor, un censor (54) detecta una variable del proceso primaria tal como una presion diferencial, y un convertidor (56) digitiza la variable del proceso detectada. El censor (54) detecta las presiones dentro de un lapso de valores de presiones. Una memoria (68) dentro del transmisor almacena por lo menos dos funciones de afiliacion. La memoria (68) también almacena un juego de formulas de compensacion, cada formula corresponde a una funcion de afiliacion. Un circuito (64) de seleccion en el transmisor (2) selecciona aquellas funciones de afiliacion que tienen un valor que no es de cero en la PV digitizada, y un circuito (66) de correccion proporciona por lo menos un valor de correccion calculado de una formula de compensacion que corresponde a una funcion de afiliacion seleccionada. Un circuito (70) de ponderacion multiplica cada valor de correccion mediante su funcion de afiliacion seleccionada correspondiente, y combina los multiplicandos para proporcionar una PV compensada. La PV compensada se acopla a un circuito (6) de control que conecta el transmisor (2) con un sistema (4) de control.

    Two-wire field-mount process device

    公开(公告)号:SG128486A1

    公开(公告)日:2007-01-30

    申请号:SG200502950

    申请日:2001-05-08

    Applicant: ROSEMOUNT INC

    Abstract: A two-wire field-mounted process device (16) with multiple isolated channels includes a channel that can be an input channel or an output channel. The given input or output channel can be coupled to multiple sensors or actuators (32, 34), respectively. The process device (16) is wholly powered by the two-wire process control loop (14). The process device (16) includes a controller (40) adapted to measure one or more characteristics of sensors (20, 22, 24, 26, 28, 30) coupled to an input channel (42, 44, 46) and to control actuators coupled to an output channel (48). The controller can be further adapted to execute a user generated control algorithm relating process input information with process output commands. The process device also includes a loop communicator (36) that is adapted to communicate over the two-wire loop.

    10.
    发明专利
    未知

    公开(公告)号:BR0110762A

    公开(公告)日:2003-05-06

    申请号:BR0110762

    申请日:2001-05-08

    Applicant: ROSEMOUNT INC

    Abstract: A two-wire field-mounted process device (16) with multiple isolated channels includes a channel that can be an input channel or an output channel. The given input or output channel can be coupled to multiple sensors or actuators (32, 34), respectively. The process device (16) is wholly powered by the two-wire process control loop (14). The process device (16) includes a controller (40) adapted to measure one or more characteristics of sensors (20, 22, 24, 26, 28, 30) coupled to an input channel (42, 44, 46) and to control actuators coupled to an output channel (48). The controller can be further adapted to execute a user generated control algorithm relating process input information with process output commands. The process device also includes a loop communicator (36) that is adapted to communicate over the two-wire loop.

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