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    TESTING EQUIPMENT BUILT-IN A TRANSMITTER
    1.
    发明专利
    TESTING EQUIPMENT BUILT-IN A TRANSMITTER 未知

    公开(公告)号：CZ71796A3

    公开(公告)日：1996-11-13

    申请号：CZ71796

    申请日：1994-08-15

    Applicant: ROSEMOUNT INC

    Inventor： VOEGELE KEVIN D ,  WESTFIELD BRIAN L ,  LANCTOT JANE B

    IPC: G01R27/14 ,  G01R31/28

    Abstract: An improved error detection for microprocessor-based transmitters in two-wire process control loops operating in the process control industry. In particular, techniques are shown which are useful in solving malfunctions or failures of microprocessor-based transmitters. When the transmitter is energized, the impedance of the process loop cabling is resolved and stored, displayed or transmitted as desired. The loop impedance is used to calculate potential of a power supply used to power the control loop. This information is used in testing the two-wire loop.

    3.
    发明专利
    未知

    公开(公告)号：BR9407400A

    公开(公告)日：1996-11-05

    申请号：BR9407400

    申请日：1994-08-12

    Applicant: ROSEMOUNT INC

    Inventor： BRODEN DAVID A ,  ORTH KELLY M ,  BORGESON DALE W ,  LANCTOT JANE B ,  VOEGELE KEVIN D

    IPC: G08C19/02

    Abstract: In this invention, a multivariable transmitter providing an output representative of mass flow has a dual microprocessor structure. The first microprocessor compensates digitized process variables and the second microprocessor computes the mass flow as well as arbitrating communications between the transmitter and a master. In a second embodiment of the present invention, a first microprocessor compensates digitized process variables, a second microprocessor computes an installation specific physical parameter such as mass flow and a third microprocessor arbitrates real-time communications between the transmitter and a master.

    POWER SUPPLY FOR FIELD MOUNTED TRANSMITTER
    4.
    发明申请
    POWER SUPPLY FOR FIELD MOUNTED TRANSMITTER 审中-公开
    现场安装变送器电源

    公开(公告)号：WO9602874A2

    公开(公告)日：1996-02-01

    申请号：PCT/US9508198

    申请日：1995-06-28

    Applicant: ROSEMOUNT INC

    Inventor： VOEGELE KEVIN D ,  PIECHOWSKI TODD A

    IPC: G08C19/02 ,  G05B15/02 ,  G05B11/00

    CPC classification number: G05B15/02

    Abstract: A field mounted transmitter (10) for use in a two-wire process control loop (16a/16b) includes a sensor (12), measurement circuitry (18) and a power supply (20). The sensor (12) senses a process variable of a process which is transmitted over the control loop (16a/16b) by the measurement circuitry (18). The power supply (20) is powered by a current flowing through the control loop (16a/16b) and powers the measurement circuitry (18). The power supply (20) includes an inductive element (70) coupled to the measurement circuitry (18) and a switch (64) which selectively couples the inductive element (70) to the control loop (16a/16b).

    Abstract translation: 用于二线过程控制回路（16a / 16b）的现场安装式变送器（10）包括传感器（12），测量电路（18）和电源（20）。 传感器（12）通过测量电路（18）感测由控制回路（16a / 16b）传输的过程的过程变量。 电源（20）由流过控制回路（16a / 16b）的电流供电，并为测量电路（18）供电。 电源（20）包括耦合到测量电路（18）的电感元件（70）和选择性地将感应元件（70）耦合到控制回路（16a / 16b）的开关（64）。

    Field transmitter built-in test equipment
    6.
    发明专利
    Field transmitter built-in test equipment 未知

    公开(公告)号：SG45362A1

    公开(公告)日：1998-01-16

    申请号：SG1996004649

    申请日：1994-08-15

    Applicant: ROSEMOUNT INC

    Inventor： WESTFIELD BRIAN L ,  LANCTOT JANE B ,  VOEGELE KEVIN D

    IPC: G01R27/14 ,  G01R31/28

    Abstract: An improved error detection for microprocessor-based transmitters in two-wire process control loops operating in the process control industry. In particular, techniques are shown which are useful in solving malfunctions or failures of microprocessor-based transmitters. When the transmitter is energized, the impedance of the process loop cabling is resolved and stored, displayed or transmitted as desired. The loop impedance is used to calculate potential of a power supply used to power the control loop. This information is used in testing the two-wire loop.

    SUMINISTRO DE POTENCIA PARA UN TRANSMISOR MONTADO EN EL CAMPO.
    7.
    发明专利
    SUMINISTRO DE POTENCIA PARA UN TRANSMISOR MONTADO EN EL CAMPO. 未知

    公开(公告)号：MX9700253A

    公开(公告)日：1997-05-31

    申请号：MX9700253

    申请日：1995-06-28

    Applicant: ROSEMOUNT INC

    Inventor： VOEGELE KEVIN D ,  PIECHOWSKI TODD A

    IPC: G08C19/02 ,  G05B15/02 ,  G05B19/042

    Abstract: Un transmisor (10) montado en el campo, para su uso en un circuito de control (15a/16b) del proceso, de dos alambres, incluye un sensor (12), un sistema de circuitos (18) de evaluacion y un suministro de potencia (20). El sensor (12) detecta una variable del proceso de un proceso el cual se transmite sobre el circuito (16a/16b) de control, por el sistema de circuitos (18) de evaluacion. El suministro de potencia (20) es impulsado por una corriente que fluye a través del circuito (16a/16b) de control e impulsa este sistema de circuitos (18) de evaluacion. El suministro de potencia (29) incluye un elemento inductivo (70) acoplado al sistema de circuitos (18) de evaluacion y un interruptor (64), el cual acopla selectivamente el elemento inductivo (70) al circuito (16a/16b) de control.

    Field transmitter built-in test equipment
    8.
    发明专利
    Field transmitter built-in test equipment 未知

    公开(公告)号：AU7526694A

    公开(公告)日：1995-04-03

    申请号：AU7526694

    申请日：1994-08-15

    Applicant: ROSEMOUNT INC

    Inventor： VOEGELE KEVIN D ,  LANCTOT JANE B ,  WESTFIELD BRIAN L

    IPC: G01R27/14 ,  G01R31/28

    Abstract: An improved error detection for microprocessor-based transmitters in two-wire process control loops operating in the process control industry. In particular, techniques are shown which are useful in solving malfunctions or failures of microprocessor-based transmitters. When the transmitter is energized, the impedance of the process loop cabling is resolved and stored, displayed or transmitted as desired. The loop impedance is used to calculate potential of a power supply used to power the control loop. This information is used in testing the two-wire loop.

    Field transmitter built-in test equipment
    10.
    发明专利
    Field transmitter built-in test equipment 未知

    公开(公告)号：AU678596B2

    公开(公告)日：1997-06-05

    申请号：AU7526694

    申请日：1994-08-15

    Applicant: ROSEMOUNT INC

    Inventor： VOEGELE KEVIN D ,  LANCTOT JANE B ,  WESTFIELD BRIAN L

    IPC: G01R27/14 ,  G01R31/28

    Abstract: An improved error detection for microprocessor-based transmitters in two-wire process control loops operating in the process control industry. In particular, techniques are shown which are useful in solving malfunctions or failures of microprocessor-based transmitters. When the transmitter is energized, the impedance of the process loop cabling is resolved and stored, displayed or transmitted as desired. The loop impedance is used to calculate potential of a power supply used to power the control loop. This information is used in testing the two-wire loop.

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