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    Field transmitter for storing information
    1.
    发明专利
    Field transmitter for storing information 未知

    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

    Inventor： BISCHOFF BRIAN J ,  LENZ GARY A

    IPC: G05B15/02 ,  G05B19/04 ,  G05B19/042 ,  G05B23/02

    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 DE PRESION CON GRUPO DE MONTAJE AISLADOR DE ALTA PRESION.
    6.
    发明专利
    TRANSMISOR DE PRESION CON GRUPO DE MONTAJE AISLADOR DE ALTA PRESION. 未知

    公开(公告)号：MX9707606A

    公开(公告)日：1997-12-31

    申请号：MX9707606

    申请日：1996-04-24

    Applicant: ROSEMOUNT INC

    Inventor： OLSON MARK H ,  JOST MICHAEL B ,  BISCHOFF BRIAN J ,  MOSER THOMAS M

    IPC: G01L9/04 ,  G01L9/00 ,  G01L19/06 ,  G01L09/00

    Abstract: Un transmisor de presion (10) incluye un conjunto de montaje aislador (12, 150) para aislar el fluido de proceso de una cavidad interior (22) del transmisor de presion (10). El conjunto de montaje aislador (12, 150) incluye un enchufe de asilar (66, 152) para recibir la presion de la línea de fluido de proceso y acoplar la presion de la línea de fluido de proceso y acoplar la presion de la línea a una cavidad de sensor (32) formada por una colector (68, 154) unido a un extremo distante del enchufe (66, 152). Un miembro anular (70) se une al colector (68, 154) y el extremo distante del enchufe (66, 152) para reforzar la union formada entre el enchufe aislador (66, 152) y el colector (68, 154). En otra modalidad, el conjunto de montaje de aislar (150) incluye una base (154) y un soporte (181) que tiene primero y segundo extremos opuestos (190, 202). El primer extremo (190) se enlaza rígidamente al sensor de presion (184) mientras que una union de epoxia (200) une el segundo extremo (202) del soporte (181) hacia la base (154).

    FLOWMETER WITH PITOT TUBE WITH AVERAGE PRESSURE
    7.
    发明专利
    FLOWMETER WITH PITOT TUBE WITH AVERAGE PRESSURE 未知

    公开(公告)号：CA2239497A1

    公开(公告)日：1997-07-17

    申请号：CA2239497

    申请日：1996-12-31

    Applicant: ROSEMOUNT INC

    Inventor： WIKLUND DAVID E ,  BISCHOFF BRIAN J

    IPC: G01F1/46 ,  G01F1/88 ,  G05D7/06

    Abstract: A transmitter (10) in a process control system for measuring flow rate measures total pressure (PTOT) and differential pressure (h) of process fluid flowing through a process pipe. The static pressure (PSTAT) is det ermined based upon the total pressure (PTOT). The calculated static pressure is used to determine the fluid density (p) and the gas expansion factor (Y1) of the process fluid flowing in the pipe (12). This information is used to calculate flow rate (Q) of the process fluid.

    PRESSURE TRANSMITTER WITH HIGH PRESSURE ISOLATOR MOUNTING ASSEMBLY
    9.
    发明专利
    PRESSURE TRANSMITTER WITH HIGH PRESSURE ISOLATOR MOUNTING ASSEMBLY 未知

    公开(公告)号：CA2217019A1

    公开(公告)日：1996-10-31

    申请号：CA2217019

    申请日：1996-04-24

    Applicant: ROSEMOUNT INC

    Inventor： JOST MICHAEL B ,  MOSER THOMAS M ,  BISCHOFF BRIAN J ,  OLSON MARK H

    IPC: G01L9/04 ,  G01L9/00 ,  G01L19/06 ,  G01L19/00 ,  G01L13/00

    Abstract: A pressure transmitter (10) includes an isolator mounting assembly (12, 150) for isolating process fluid from an interior cavity (22) of the pressure transmitter (10). The isolator mounting assembly (12, 150) includes an isolator plug (66, 152) for receiving the process fluid line pressure and coupling the line pressure to a sensor cavity (32) formed by a header (68, 154) joined to a distal end of the plug (66, 152). A ring member (70) is attached to the header (68, 154) and the distal end of the plug (66, 152) to reinforce the joint formed between the isolator plug (66, 152) and the header (68, 154). In another embodiment, the isolator mounting assembly (150) includes a base (154) and a support (181) having first and second opposed ends (190, 202). The first end (190) is rigidly bonded to the pressure sensor (184) while an epoxy joint (200) joins the second end (202) of the support (181) to the base (154).

    FIELD TRANSMITTER FOR STORING INFORMATION
    10.
    发明专利
    FIELD TRANSMITTER FOR STORING INFORMATION 未知

    公开(公告)号：CA2181687A1

    公开(公告)日：1995-08-31

    申请号：CA2181687

    申请日：1995-02-02

    Applicant: ROSEMOUNT INC

    Inventor： BISCHOFF BRIAN J ,  LENZ GARY A

    IPC: G05B19/04 ,  G05B15/02 ,  G05B19/042 ,  G05B23/02 ,  G05B19/02

    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.

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