公开(公告)号：US09124096B2

公开(公告)日：2015-09-01

申请号：US13285307

申请日：2011-10-31

Applicant: James A. Johnson ,  Richard L. Nelson

Inventor： James A. Johnson ,  Richard L. Nelson

IPC: H02H3/00 ,  H02H11/00 ,  H02J7/00 ,  H02H3/20 ,  H02H3/18

CPC classification number: H02H11/002 ,  H02H3/18 ,  H02H3/202 ,  H02H11/003 ,  H02H11/006 ,  H02J7/0034

Abstract: A wireless field device for use in an industrial process control system includes a power source having a power source output. Field device is circuitry powered by the power source output. A protection circuit is configured to protect the field device circuitry. The protection circuit include reverse polarity protection circuit coupled to the power source output that electrically isolates the power source output from the field device circuitry in response to a reverse polarity connection between the power source output and the field device circuitry. An overvoltage protection circuit disconnects the power source output from the field device circuitry is a voltage of the power source output exceeds a threshold.

Abstract translation: 用于工业过程控制系统的无线现场设备包括具有电源输出的电源。 现场设备是由电源输出供电的电路。 保护电路被配置为保护现场设备电路。 保护电路包括耦合到电源输出端的反向极性保护电路，电源输出响应于电源输出和现场设备电路之间的反极性连接，将来自现场设备电路的电源输出电隔离。 过电压保护电路断开现场设备电路的电源输出是电源输出的电压超过阈值。

公开(公告)号：US09112354B2

公开(公告)日：2015-08-18

申请号：US13768821

申请日：2013-02-15

Applicant: Rosemount Inc.

Inventor： Douglas Wayne Arntson

IPC: H02J4/00 ,  H05B33/08 ,  H05B37/02 ,  G05B19/042

CPC classification number: H02J4/00 ,  G05B19/0423 ,  H05B33/0815 ,  H05B37/0254 ,  Y10T307/406 ,  Y10T307/414

Abstract: A process instrument includes a transducer, a two wire interface, a microprocessor, a digital to analog converter, a first control circuit, and a second control circuit. A current passing through the two wire interface indicates a condition of the transducer. The microprocessor is interfaced with the transducer. The digital to analog converter receives a signal from the microprocessor indicating a current value. The first control circuit is coupled to the digital to analog converter and adapted to control the current passing through the two wire interface to the current value. The second control circuit is coupled to the digital to analog converter and supplies current to a secondary load.

Abstract translation: 处理仪器包括换能器，双线接口，微处理器，数模转换器，第一控制电路和第二控制电路。 通过两线接口的电流表示换能器的状态。 微处理器与传感器接口。 数模转换器从微处理器接收指示当前值的信号。 第一控制电路耦合到数模转换器，并且适于将通过两线接口的电流控制到当前值。 第二控制电路耦合到数模转换器并且将电流提供给次级负载。

公开(公告)号：US09109937B2

公开(公告)日：2015-08-18

申请号：US13565305

申请日：2012-08-02

Applicant: Jay Scheldorf ,  Gokhan Aydar ,  Blake Becker ,  Derek Poehlmann ,  Bruce Muske

Inventor： Jay Scheldorf ,  Gokhan Aydar ,  Blake Becker ,  Derek Poehlmann ,  Bruce Muske

IPC: G01F23/00 ,  G01F23/14 ,  G01F23/16 ,  G01L7/06

CPC classification number: G01F23/14 ,  G01F23/164 ,  G01L7/06

Abstract: An apparatus is provided for measuring level of a process fluid in a container opening. The apparatus includes a remote seal configured to be inserted into the container through an opening and configured to receive a pressure related to the level of process fluid in the container. A capillary tube filled with a fill fluid extends from the remote seal to the opening and is configured to convey the pressure therebetween. A pressure sensor coupled to the capillary tube senses the pressure from the capillary tube and responsively determines the level of the process fluid in the container. The remote seal includes a bellows portion arranged to isolate the process fluid from the fill fluid in the capillary tube and convey the pressure therebetween.

Abstract translation: 提供了一种用于测量容器开口中的工艺流体的水平的装置。 该装置包括远程密封件，该密封件构造成通过开口插入到容器中并且构造成接收与容器中的过程流体水平相关的压力。 填充有填充流体的毛细管从远程密封件延伸到开口，并且构造成在其间输送压力。 耦合到毛细管的压力传感器感测来自毛细管的压力并且响应地确定容器中的过程流体的水平。 远程密封件包括波纹管部分，其布置成将过程流体与毛细管中的填充流体隔离并传送其间的压力。

公开(公告)号：US09086167B2

公开(公告)日：2015-07-21

申请号：US14037856

申请日：2013-09-26

Applicant: Rosemount Inc.

Inventor： Robert C. Hedtke

IPC: F16K17/168 ,  F16K37/00 ,  F16K17/19 ,  G01L19/06

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: 隔离歧管包括歧管主体，在歧管主体的第一端处的过程连接，在歧管主体的第二端处的压力变送器连接，通过歧管主体的通道，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。 通道将过程连接流体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。 压力限制装置流体地连接到隔离阀和压力变送器连接件之间的通道。 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。

公开(公告)号：US20150177356A1

公开(公告)日：2015-06-25

申请号：US14138684

申请日：2013-12-23

Applicant: Rosemount Inc.

Inventor： Nathan Len Wiater

IPC: G01R35/00 ,  G01R1/20

CPC classification number: G01R35/005 ,  G01D18/00 ,  G01R1/203 ,  G05B19/0423 ,  G05B2219/21127 ,  G05B2219/23374

Abstract: A process variable transmitter for measuring a process variable includes a process variable sensor configured to sense a process variable and provide a sensor output. Measurement circuitry receives the sensor output and provides a measured output related to the process variable. Output circuitry provides a device output on a two-wire process control loop based upon the measured output. The output circuitry has a transfer function that is a function of an adjustable analog circuit component. A motorized actuator is configured to adjust the adjustable analog circuit component to thereby change the transfer function of the output circuitry. An optional calibration controller is also provided.

Abstract translation: 用于测量过程变量的过程变量发送器包括被配置为感测过程变量并提供传感器输出的过程变量传感器。 测量电路接收传感器输出并提供与过程变量相关的测量输出。 输出电路根据测量的输出在两线制过程控制回路中提供器件输出。 输出电路具有作为可调模拟电路部件的功能的传递函数。 电动致动器被配置为调节可调模拟电路部件，从而改变输出电路的传递功能。 还提供了可选的校准控制器。

公开(公告)号：US09020768B2

公开(公告)日：2015-04-28

申请号：US13210662

申请日：2011-08-16

Applicant: Douglas W. Arntson ,  Jason H. Rud

Inventor： Douglas W. Arntson ,  Jason H. Rud

IPC: G01R31/00 ,  G05B15/02 ,  G05B23/02 ,  G08C25/00

CPC classification number: G08C25/00

Abstract: A process variable transmitter controls a signal on a communication loop. A diagnostic component on the transmitter compares an expected signal level on the communication loop with an actual value to detect on-scale errors.

Abstract translation: 过程变量发送器控制通信环路上的信号。 发射机上的诊断部件将通信环路上的预期信号电平与实际值进行比较，以检测标度误差。

公开(公告)号：US08982989B2

公开(公告)日：2015-03-17

申请号：US13930165

申请日：2013-06-28

Applicant: Rosemount Inc.

Inventor： Peter J. Flanagan ,  David G. Tyson ,  John P. Schulte ,  Eugene Korolev

IPC: H04L27/00 ,  H04L25/08 ,  H04L7/00 ,  H04L25/06

CPC classification number: H04L25/08 ,  G01D21/00 ,  G05B21/02 ,  G05B23/0221 ,  H04L7/0091 ,  H04L25/06 ,  H04L25/068

Abstract: In a process variable transmitter, a sensor signal is sampled, using a clock signal, at a sensor sampling frequency. Interference is also sampled at the sensor sampling frequency. A comparison is made to determine whether the interference at the sensor sampling frequency or harmonics of the sensor sampling frequency exceed a threshold level. If so, the clock signal is changed to adjust the sensor sampling frequency away from the frequency of the interference.

Abstract translation: 在过程变量发送器中，使用时钟信号以传感器采样频率对传感器信号进行采样。 传感器采样频率也采样干扰。 进行比较以确定传感器采样频率处的干扰或传感器采样频率的谐波是否超过阈值水平。 如果是这样，则更改时钟信号以调整传感器采样频率远离干扰频率。

公开(公告)号：US08963735B2

公开(公告)日：2015-02-24

申请号：US13307125

申请日：2011-11-30

Applicant: James A. Johnson ,  Richard Nelson

Inventor： James A. Johnson ,  Richard Nelson

IPC: G08B23/00

CPC classification number: G01F1/075 ,  G01F1/115 ,  G01F1/60 ,  G01F15/063

Abstract: An electronic circuit for converting higher-frequency output signals from a sensor into lower-frequency input signals for a discrete input wireless transmitter. The circuit includes a differential amplifier, a digital comparator, a digital frequency divider, and a transistor switch. The differential amplifier amplifies the sensor signals as a function of a frequency of the sensor signals. The digital comparator generates a square wave signal by comparing the amplified sensor signals to a fixed reference voltage. The digital frequency divider generates a lower-frequency signal by dividing the square wave signal. The transistor switch generates the lower-frequency input signals for the discrete input wireless transmitter by switching as a function of the lower-frequency signal from the digital frequency divider.

Abstract translation: 一种用于将来自传感器的较高频率输出信号转换为用于离散输入无线发射机的较低频率输入信号的电子电路。 该电路包括差分放大器，数字比较器，数字分频器和晶体管开关。 差分放大器将传感器信号放大为传感器信号频率的函数。 数字比较器通过将放大的传感器信号与固定参考电压进行比较来产生方波信号。 数字分频器通过划分方波信号来产生低频信号。 晶体管开关根据来自数字分频器的低频信号的切换产生离散输入无线发射机的低频输入信号。

公开(公告)号：US08929948B2

公开(公告)日：2015-01-06

申请号：US12485169

申请日：2009-06-16

Applicant: Joel D. Vanderaa ,  Christina A. Grunig ,  Ronald F. Hurd

Inventor： Joel D. Vanderaa ,  Christina A. Grunig ,  Ronald F. Hurd

IPC: H04W24/00 ,  H01R9/22 ,  G05B19/418 ,  G01D21/00 ,  G01D11/24

CPC classification number: G01D11/245 ,  G01D21/00 ,  G05B19/4185 ,  G05B2219/31121 ,  G05B2219/33192 ,  G05B2219/34481 ,  Y02P90/18

Abstract: A wireless process communication adapter is provided. The adapter includes a housing having a plurality of openings. An end cap is coupled to a first opening of the plurality of openings. A field device coupling is disposed at the second of the plurality of openings. The housing, end cap and field device coupling define a chamber therein. At least one circuit board is disposed within the chamber, the circuit board has wireless communication circuitry disposed thereon and is coupleable to a field device through the field device coupling. In one aspect, substantially all remaining volume in the chamber is filled with a solid material. In another aspect, an explosion-proof barrier is provided in the field device coupling. Combinations of the aspects are also provided.

Abstract translation: 提供无线过程通信适配器。 适配器包括具有多个开口的壳体。 端盖连接到多个开口的第一开口。 现场设备联接设置在多个开口中的第二个处。 壳体，端盖和现场设备联接器在其中限定室。 至少一个电路板设置在室内，电路板具有设置在其上的无线通信电路，并且可通过现场设备耦合耦合到现场设备。 在一个方面，室中的基本上所有的剩余体积都填充有固体材料。 另一方面，在现场设备联接中提供防爆屏障。 还提供了这些方面的组合。

公开(公告)号：US08892034B2

公开(公告)日：2014-11-18

申请号：US13532947

申请日：2012-06-26

Applicant: Chad Michael McGuire ,  Brett Robert Morrison

Inventor： Chad Michael McGuire ,  Brett Robert Morrison

IPC: H04B5/00

CPC classification number: G05B19/0423 ,  G01D21/00 ,  G05B2219/25428

Abstract: A terminal module is configured to fit inside an internal power source receptacle in a housing of a process field device, and comprises a wired power source connection, power conditioning electronics, and a field device connection. The wired power source connection is configured to receive power from an external source. The power conditioning electronics are capable of conditioning power from the wired power source connection for reception by the industrial field device. The field device connection is configured to provide power conditioned by the power conditioning electronics to the process field device via a terminal configured to receive and mate with the internal power source.

Abstract translation: 终端模块被配置为装配在过程现场设备的外壳内的内部电源插座内，并且包括有线电源连接，功率调节电子设备和现场设备连接。 有线电源连接被配置为从外部源接收电力。 功率调节电子器件能够调节来自有线电源连接的电力，以便由工业现场设备接收。 现场设备连接被配置为经由被配置为接收和与内部电源相配合的终端来将由功率调节电子器件调节的功率提供给过程现场设备。