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Patent Agency Ranking
公开(公告)号：AU7408394A
公开(公告)日：1995-04-10
申请号：AU7408394
申请日：1994-07-29
Applicant: ROSEMOUNT INC
Inventor： LOUWAGIE BENNETT L , MUNSON GREGORY S , WIKLUND DAVID E , ZWEBER MICHAEL J , BRODEN DAVID A , BISCHOFF BRIAN J , CORPRON GARY P
IPC: G01F1/36 , G01F1/88 , G01F15/06 , G01F23/14 , G01F23/18 , G01L7/08 , G01L9/04 , G01L19/00 , G01L19/08
Abstract: A two-wire transmitter senses a pressure using an internal pressure sensor. The transmitter includes an input for receiving a process variable from a remote sensor which is separated from the transmitter. Circuitry in the transmitters transmits information on a two-wire process control loop which is related to the sensed pressure and the process variable.
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公开(公告)号：CA2105483A1
公开(公告)日：1992-09-30
申请号：CA2105483
申请日：1992-03-24
Applicant: ROSEMOUNT INC
Inventor： BRODEN DAVID A , BISCHOFF BRIAN J , LOUWAGIE BENNETT L
Abstract: A metal thin film bonds a semiconductor bonding region of a diaphragm layer to a ceramic bonding region of a high modulus support block. The arrangement isolates a pressure sensing diaphragm from undesired strain, improving sensor accuracy. A passageway through the support block couples the fluid pressure to the sensing diaphragm to deflect it. Capacitive coupling between the diaphragm and a capacitor plate on the support block sense the deflection and provide an output representative of pressure.
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公开(公告)号：BR9608026A
公开(公告)日：1999-05-04
申请号：BR9608026
申请日：1996-04-24
Applicant: ROSEMOUNT INC
Inventor： OLSON MARK H , JOST MICHAEL B , BISCHOFF BRIAN J , MOSER THOMAS M
Abstract: A pressure transmitter includes an isolator mounting assembly for isolating process fluid from an interior cavity of the pressure transmitter. The isolator mounting assembly includes an isolator plug for receiving the process fluid line pressure and coupling the line pressure to a sensor cavity formed by a header joined to a distal end of the plug. A ring member is attached to the header and the distal end of the plug to reinforce the joint formed between the isolator plug and the head. In another embodiment, the isolator mounting assembly includes a base and a support having first and second opposed ends. The first end is rigidly bonded to the pressure sensor while an epoxy joint joins the second end of the support to the base.
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公开(公告)号：MX9602687A
公开(公告)日：1997-05-31
申请号：MX9602687
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: Un transmisor (22) en un circuito de control de proceso (34) incluye un sensor (40) para detectar una variable del proceso. Un convertidor analogico a digital (42, 44) acoplado con el sensor (40) proporciona una variable del proceso digitizada durante los distintos tiempos de muestreo. Una interfaz (54) acopla el transmisor con el circuito de control (34) y si se usa para comunicar la informacion y recibir la energía a través del circuito de control (34). El transmisor (22) incluye un reloj (52) y una memoria (50). Un microprocesador (48) acoplado con el reloj (52) y la memoria (50) almacena las variables del proceso digitizadas y la informacion de reloj en la memoria (50). El almacenamiento es de manera tal que puede determinarse el tiempo de muestreo de una variable de proceso digital almacenada.
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公开(公告)号：CA2169444A1
公开(公告)日：1995-03-30
申请号：CA2169444
申请日：1994-07-29
Applicant: ROSEMOUNT INC
Inventor： LOUWAGIE BENNETT L , MUNSON GREGORY S , WIKLUND DAVID E , ZWEBER MICHAEL J , BRODEN DAVID A , BISCHOFF BRIAN J , CORPRON GARY P
IPC: G01F1/36 , G01F1/88 , G01F15/06 , G01F23/14 , G01F23/18 , G01L7/08 , G01L9/04 , G01L19/00 , G01L19/08 , G01L13/00
Abstract: A two-wire transmitter senses differential pressure, absolute pressure, and process temperature of a process fluid. The information can be used to provide an output representative of mass flow through a pipe. The transmitter has an electronics module housing attached to a sensor module housing.
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