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公开(公告)号：CA2910810A1
公开(公告)日：2014-11-27
申请号：CA2910810
申请日：2014-05-21
Applicant: ROSEMOUNT INC
Inventor： HEDTKE ROBERT C , DAVIS DALE SCOTT , SCHULTE JOHN P
IPC: G06F21/30
Abstract: During manufacturing a unique encrypted authentication code is created for each product 12 based upon device specific information relating to that product 12. The unique encrypted authentication code together with the device specific information is stored in a database 23, and a representation 14 of the unique encrypted authentication code is stored on the product. To determine whether a product in question is authentic, the readable representation 14 of the unique encrypted authentication code is read and sent to a server 22 along with a request for product authentication. The server 22 provides an indication of authenticity of the product 14 in question based upon the unique encrypted authentication code received and the device specific information associated with that unique encrypted authentication code in the database 23.
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公开(公告)号：CA2849392A1
公开(公告)日：2013-04-04
申请号：CA2849392
申请日：2012-06-14
Applicant: ROSEMOUNT INC
Inventor： HEDTKE ROBERT C , SCHULTE JOHN , BRODEN DAVID A
Abstract: A process fluid pressure transmitter has a remote pressure sensor (204). The transmitter includes an electronics housing (104) and a loop communicator (300) disposed in the electronics housing (104) and being configured to communicate in accordance with a process communication protocol. A controller (304) is disposed within the electronics housing (104) and is coupled to the loop communicator (300). Sensor measurement circuitry (306) is disposed within the electronics housing (104) and is coupled to the controller (300). A remote pressure sensor housing is configured to couple directly to a process and is spaced from the electronics housing. A pressure sensor (100, 120) is disposed within the remote pressure sensor housing. The pressure sensor (100, 120) forms at least one electrical component having an electrical characteristic that varies with process fluid pressure. Portions of the electrical component are coupled directly to a multiconductor cable (106) that operably connects the pressure sensor (100, 120) to the sensor measurement circuitry (306).
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公开(公告)号：GB2337331A
公开(公告)日：1999-11-17
申请号：GB9921315
申请日：1998-03-26
Applicant: ROSEMOUNT INC
Inventor： KLEVEN LOWELL A , HEDTKE ROBERT C , WIKLUND DAVID E
Abstract: A vortex sensor (11) senses generated vortices and provides a vortex signal. A filtering circuit (68) is coupled to the vortex sensor (11) to receive the vortex signal and provide an output indicative of fluid flow. A temperature sensor (82) senses a temperature of the fluid and provides a temperature value, while a pressure sensor (86) senses a pressure of the fluid and provides a pressure value. A processor (70, 70A) is operably coupled to the filtering circuit (68), the temperature sensor (82), and the pressure sensor (86) for receiving the output, the temperature value, and the pressure value, respectively. The processor (70, 70A) calculates a calibration factor as a function of the output, the temperature value, and the pressure value for use in calculating the output value indicative of the flow rate of the fluid.
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公开(公告)号：CA1269861A
公开(公告)日：1990-06-05
申请号：CA513695
申请日：1986-07-14
Applicant: ROSEMOUNT INC
Inventor： HEDTKE ROBERT C
Abstract: A pressure transmitter housing for mounting an internal sensing cell , and having two sections that provide integral pressure connecting flanges for differential pressure sensing, and provide proper clamping pressure and seals on the sensing cell . The housing sections also provide a space for all transmitter circuitry in a toroidal chamber defined in the housing and surrounding the sensing cell . Each of the housing sections has a sealing surface for sealing against the outer ends of a differential pressure sensing cell , and clamping the ends of the cell together under compressive load using external clamping bolts . One of the housing sections has a terminal strip to connect to external power supply wires. The housing sections are easily cast and machined, and will accommodate the necessary dimensional tolerances needed for manufacturing processes in making the sensing cells. Low cost manufacturing is achieved by combining the function of the sensing cell, clamping flanges and circuit housing, and at the same time providing the necessary pressure connection flange functions.
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公开(公告)号：EP3049782A4
公开(公告)日：2017-05-03
申请号：EP14847779
申请日：2014-09-26
Applicant: ROSEMOUNT INC
Inventor： HEDTKE ROBERT C , PETERSEN ERIC
CPC classification number: G01L19/0046
Abstract: An isolator system for a pressure transmitter includes a port internal to the transmitter, a sensor tube, and a fill tube. The sensor tube is connected to the port to fluidly connect a passageway through a transmitter body to a pressure sensor. The sensor tube includes a first end disposed in the port. The first end has a first cross-sectional area. The fill tube is internal to the transmitter and connected to the port to fluidly connect to the passageway. The fill tube includes a second end disposed in the port. The second end of the fill tube has a second cross-sectional area that is less than the first cross-sectional area of the sensor tube.
Abstract translation: 用于压力变送器的隔离器系统包括变送器内部的端口，传感器管和填充管。 传感器管连接到端口以将通过发送器主体的通道流体连接到压力传感器。 传感器管包括设置在端口中的第一端。 第一端具有第一横截面积。 填充管位于变送器内部并连接到端口以流体连接到通道。 填充管包括设置在端口中的第二端。 填充管的第二端具有小于传感器管的第一横截面积的第二横截面积。
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Patent Agency Ranking116.发明公开
公开(公告)号：EP2467679A4
公开(公告)日：2016-03-16
申请号：EP10815726
申请日：2010-08-16
Applicant: ROSEMOUNT INC
Inventor： HEDTKE ROBERT C
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117.发明公开
公开(公告)号：EP2132532A4
公开(公告)日：2011-03-30
申请号：EP08725653
申请日：2008-02-15
Applicant: ROSEMOUNT INC
Inventor： HEDTKE ROBERT C
IPC: G01F1/42
CPC classification number: G01F1/42 , G01L19/0007
Abstract: An industrial pressure transmitter, for use in industrial process control systems, comprises a differential pressure sensor and an integrated process connector connected to the differential pressure sensor. A process fluid flow duct extends through the process connector and receives an industrial process fluid. A primary element is positioned in the process fluid flow duct for producing a pressure differential in the process fluid across the primary element. The differential pressure sensor is connected to the process fluid flow duct to sense the pressure differential across the primary element.
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公开(公告)号：EP3049711A4
公开(公告)日：2017-05-17
申请号：EP14847191
申请日：2014-09-26
Applicant: ROSEMOUNT INC
Inventor： HEDTKE ROBERT C
CPC classification number: F16K37/005 , F16K17/168 , F16K17/19 , G01L19/003 , G01L19/0609 , G01L19/0618 , Y10T137/8326
Abstract: An isolation manifold includes a manifold body, a process connection at a first end of the manifold body, a pressure transmitter connection at a second end of the manifold body, a passageway through the manifold body, an isolation valve, and a pressure limiting device. The process connection is for fluidly connecting the isolation manifold to a process vessel or conduit containing a process fluid. The pressure transmitter connection is for fluidly connecting the isolation manifold to a pressure transmitter. The passageway fluidly connects the process connection to the pressure transmitter connection. The isolation valve is operable to selectively block the passageway to isolate the process connection from the pressure transmitter connection. The pressure limiting device fluidly connects to the passageway between the isolation valve and the pressure transmitter connection. The manifold may preferably include a pressure snubber within the passageway to increase the flow impedance of the passageway.
Abstract translation: 隔离歧管包括歧管本体，歧管本体的第一端处的过程连接件，歧管本体的第二端处的压力变送器连接件，穿过歧管本体的通道，隔离阀和压力限制装置。 过程连接用于将隔离歧管流体连接到包含过程流体的过程容器或导管。 压力变送器连接用于将隔离歧管流体连接到压力变送器。 通道流体连接过程连接到压力变送器连接。 隔离阀可操作以选择性地阻塞通道以将过程连接与压力变送器连接隔离。 压力限制装置流体连接到隔离阀和压力变送器连接之间的通道。 歧管可以优选地包括通道内的压力缓冲器以增加通道的流动阻抗。
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公开(公告)号：EP2113073A4
公开(公告)日：2015-11-11
申请号：EP07870822
申请日：2007-10-26
Applicant: ROSEMOUNT INC
Inventor： HEDTKE ROBERT C
CPC classification number: G01L27/007
Abstract: A process transmitter for sensing a process variable of a process fluid includes a process sensor, transmitter circuitry, a transmitter housing and a transmitter mounting component. The process sensor senses the process variable of the process fluid and the transmitter circuitry processes a signal from the process sensor. The transmitter housing receives the process sensor and transmitter circuitry, and the transmitter mounting component isolates the sensor or the transmitter circuitry from the process fluid or external environment. The mechanical integrity sensor validates assembly of the transmitter housing and transmitter mounting component.
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120.发明公开PROCESS FLUID PRESSURE TRANSMITTER WITH SEPARATED SENSOR AND SENSOR ELECTRONICS 审中-公开与隔离传感器和传感器电子过程流体压力转换器
公开(公告)号：EP2761264A4
公开(公告)日：2015-06-24
申请号：EP12835022
申请日：2012-06-14
Applicant: ROSEMOUNT INC
Inventor： HEDTKE ROBERT C , SCHULTE JOHN , BRODEN DAVID A
IPC: G01L7/08 , G01F1/34 , G01F1/36 , G01F1/38 , G01F1/42 , G01F15/06 , G01L19/00 , G01L19/06 , G01L19/08
CPC classification number: G01L19/0061 , G01F1/34 , G01F1/36 , G01F1/38 , G01F1/42 , G01F15/06 , G01F15/061 , G01L19/0046 , G01L19/0084 , G01L19/0681 , G01L19/08
Abstract: A process fluid pressure transmitter has a remote pressure sensor. The transmitter includes an electronics housing and a loop communicator disposed in the electronics housing and being configured to communicate in accordance with a process communication protocol. A controller is disposed within the electronics housing and is coupled to the loop communicator. Sensor measurement circuitry is disposed within the electronics housing and is coupled to the controller. A remote pressure sensor housing is configured to couple directly to a process and is spaced from the electronics housing. A pressure sensor is disposed within the remote pressure sensor housing. The pressure sensor forms at least one electrical component having an electrical characteristic that varies with process fluid pressure. Portions of the electrical component are coupled directly to a multiconductor cable that operably connects the pressure sensor to the sensor measurement circuitry.
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