公开(公告)号：US20050182501A1

公开(公告)日：2005-08-18

申请号：US10781372

申请日：2004-02-18

Applicant: Brian Franchuk ,  Roger Benson

Inventor： Brian Franchuk ,  Roger Benson

IPC: G05B9/02 ,  G05B23/02 ,  G06F3/00 ,  G06F9/44 ,  G06F9/46 ,  G06F13/00 ,  G06K5/04 ,  G11B5/00 ,  G11B20/20

CPC classification number: G05B23/0229

Abstract: A diagnostic tool has a packet based network medium attachment unit, a measurement interface, a network interface, and a microprocessor for reading DLPDUs from a network segment and for taking simultaneous measurements of DLPDUs on the segment. The measurement data is associated with a stored DLPDU if the DLPDU is still active on the network segment when the measurement data is read by the microprocessor. The diagnostic tool utilizes a currently active attribute to determine the status of a DLPDU.

Abstract translation: 诊断工具具有基于分组的网络介质附接单元，测量接口，网络接口和用于从网段读取DLPDU并用于同时测量该段上的DLPDU的微处理器。 如果微处理器读取测量数据时DLPDU在网段上仍然有效，则测量数据与存储的DLPDU相关联。 诊断工具利用当前活动的属性来确定DLPDU的状态。

公开(公告)号：US20050180466A1

公开(公告)日：2005-08-18

申请号：US10781374

申请日：2004-02-18

Applicant: Brian Franchuk ,  Roger Benson

Inventor： Brian Franchuk ,  Roger Benson

IPC: H04J3/06 ,  H04Q11/00

CPC classification number: H04J3/0697 ,  H04J3/0638 ,  H04J3/0655 ,  H04J3/0664

Abstract: The system has a control center, a time master device and a plurality of distributed, time slave field devices in synchronization with a master clock of the time master device. The time master device periodically transmits a time distribution data unit. Each time slave field device has a timer adjustment element, a fixed rate clock and a variable clock. The timer adjustment element calculates a frequency ratio between the master clock and the fixed rate clock and uses the frequency ratio to calculate adjustment coefficients to adjust a local sense of time for each field device, such that a time stamp of each field device is synchronized to the master clock.

Abstract translation: 该系统具有与时间主设备的主时钟同步的控制中心，时间主设备和多个分布式时间从站现场设备。 时间主设备周期性地发送时间分布数据单元。 每个从站现场设备具有定时器调整元件，固定速率时钟和可变时钟。 定时器调整元件计算主时钟和固定速率时钟之间的频率比，并使用频率比来计算调整系数，以调整每个现场设备的局部时间感，使得每个现场设备的时间戳同步到 主时钟。

公开(公告)号：US06904476B2

公开(公告)日：2005-06-07

申请号：US10407292

申请日：2003-04-04

Applicant: Robert C. Hedtke

Inventor： Robert C. Hedtke

IPC: G05B19/418 ,  G06F13/12 ,  G06F13/42

CPC classification number: G05B19/4185 ,  G05B2219/25012 ,  G05B2219/31126 ,  Y02P90/18

Abstract: A two-wire process transmitter for use in monitoring an industrial process includes HART® communication circuitry and Fieldbus communication circuitry to couple to a two-wire process control loop. A first pair of electrical terminals is provided to couple the HART® communication circuitry to the two-wire process control loop in a first configuration, and a second pair of electrical terminals is provided to couple the Fieldbus communication circuitry to the two-wire process control loop in an alternative second configuration.

Abstract translation: 用于监测工业过程的两线制过程变送器包括HART（R）通信电路和现场总线通信电路，以耦合到两线过程控制回路。 提供第一对电端子以将HART通信电路以第一配置耦合到双线过程控制回路，并且提供第二对电端子以将现场总线通信电路耦合到两线 过程控制回路在替代的第二配置。

公开(公告)号：US06901803B2

公开(公告)日：2005-06-07

申请号：US10677209

申请日：2003-10-02

Applicant: Mark C. Fandrey

Inventor： Mark C. Fandrey

IPC: G01L7/08 ,  G01L9/00 ,  G01L19/00 ,  G01L19/06 ,  G01L7/00

CPC classification number: G01L19/0007 ,  G01L19/0645 ,  G01L19/0672

Abstract: A pressure module includes a sensor assembly with tubes extending from a pressure sensor to fluid isolator members. The pressure sensor is contained in a cavity in a module housing. The module housing includes support members joined by joints to the fluid isolator members to provide barriers to leakage of process fluids into the cavity. Threaded process inlets on a bottom outside surface of the module housing couple the process fluids to the fluid isolator members through process passageways in the module housing.

Abstract translation: 压力模块包括具有从压力传感器延伸到流体隔离器构件的管的传感器组件。 压力传感器被容纳在模块壳体中的空腔中。 模块壳体包括通过接头连接到流体隔离器构件的支撑构件，以提供过程流体泄漏到空腔中的障碍。 在模块壳体的底部外表面上的螺纹过程入口通过模块壳体中的过程通道将过程流体耦合到流体隔离器构件。

公开(公告)号：US06901101B2

公开(公告)日：2005-05-31

申请号：US09996143

申请日：2001-11-28

Applicant: Roger L. Frick

Inventor： Roger L. Frick

IPC: G01D5/26 ,  G01D5/353 ,  H01S3/00 ,  H01S3/06 ,  H01S3/08 ,  H01S3/083 ,  H01S3/091 ,  H01S3/0933 ,  H01S3/10 ,  H01S5/14 ,  H01S5/183

CPC classification number: G01D5/35312 ,  G01D5/35341

Abstract: An optical medium having a cavity that defines a variable gap is provided. The optical medium is used in an optical sensor, laser, and variable frequency resonator, by way of example. The cavity is physically altered in response to changes in a measurable parameter like pressure, temperature, force, flow rate, and material composition. The optical medium is characterized in some embodiments by having a cavity disposed near or within a high Q optical resonator. The optical resonator can be formed by various structures of which Bragg reflector cavities, ring resonators, microdiscs, and microspheres are examples. The optical resonator is preferably coupled to a laser source. The altering of the cavity affects the resonance condition within the optical resonator and thereby the laser signal of the system. If the laser source is a mode locked laser, the repetition rate of the pulse train changes in response to changes in the measurable parameter. If the laser source is a CW source the frequency of the laser signal is dependent upon a measurable parameter.

Abstract translation: 提供了具有限定可变间隙的空腔的光学介质。 作为示例，光学介质用于光学传感器，激光器和可变频率谐振器中。 响应于诸如压力，温度，力，流速和材料成分的可测量参数的变化，空腔被物理地改变。 在一些实施例中，光学介质的特征在于具有设置在高Q光学谐振器附近或内部的空腔。 光学谐振器可以通过布拉格反射器腔，环形谐振器，微型芯片和微球体的各种结构形成。 光学谐振器优选地耦合到激光源。 空腔的改变影响光学谐振器内的谐振状态，从而影响系统的激光信号。 如果激光源是锁模激光器，则脉冲串的重复率响应于可测量参数的变化而改变。 如果激光源是CW源，则激光信号的频率取决于可测量的参数。

公开(公告)号：US20050066104A1

公开(公告)日：2005-03-24

申请号：US10931165

申请日：2004-08-31

Applicant: Robert Train ,  Marcos Peluso ,  Robert Karschnia ,  Eric Rotvold

Inventor： Robert Train ,  Marcos Peluso ,  Robert Karschnia ,  Eric Rotvold

IPC: G05B20060101 ,  G05B19/18 ,  G05B19/418 ,  G06F13/14 ,  G06F13/40

CPC classification number: G05B19/4186 ,  G05B2219/31122 ,  G05B2219/31138 ,  G05B2219/31326 ,  G05B2219/31335 ,  H04L12/40013 ,  H04L2012/40221 ,  Y02P90/185

Abstract: An interface module is operatively connected to a Fieldbus process control network and to at least one non-Fieldbus process control network to facilitate the exchange of process control information between the networks. The interface module stores a database in which the process control parameters of the function blocks in the field devices of the Fieldbus process control network are mapped to corresponding process control parameters of the non-Fieldbus process control network. Once the Fieldbus process control parameters are mapped to the non-Fieldbus process control parameters, the interface module is adapted to transmit request messages on the Fieldbus process control network to the Fieldbus field devices for the current values of the process control parameters, receive response messages from the Fieldbus field devices, and store the current values of the process control parameters in the database. The interface module may also function in the other direction to map non-Fieldbus process control parameters to corresponding Fieldbus process control parameters.

Abstract translation: 接口模块可操作地连接到现场总线过程控制网络和至少一个非现场总线过程控制网络，以便于在网络之间交换过程控制信息。 接口模块存储一个数据库，其中现场总线过程控制网络的现场设备中的功能块的过程控制参数映射到非现场总线过程控制网络的相应过程控制参数。 一旦现场总线过程控制参数映射到非现场总线过程控制参数，接口模块就适用于将现场总线过程控制网络上的请求消息传送到现场总线现场设备，以了解过程控制参数的当前值，接收响应消息 从现场总线现场设备中，将过程控制参数的当前值存储在数据库中。 接口模块还可以在另一个方向上工作，将非现场总线过程控制参数映射到相应的现场总线过程控制参数。

公开(公告)号：US20050016286A1

公开(公告)日：2005-01-27

申请号：US10922350

申请日：2004-08-20

Applicant: David Broden ,  David Horky

Inventor： David Broden ,  David Horky

IPC: G01L13/06 ,  G01L9/00 ,  G01L13/02 ,  G01L19/06 ,  G01L19/04

CPC classification number: G01L9/0072

Abstract: A capacitive pressure transmitter is provided. In one aspect, the transmitter includes a capacitive pressure sensor coupled directly to the measured media without any intervening fluid isolation. A filter is preferably used to keep particulates from reaching the measuring diaphragm. In another aspect, a capacitive pressure transmitter is provided with at least one self-contained isolator interposed between a process connection and the capacitive pressure sensor. In both aspects, the capacitive pressure transmitter is relatively small and preferably constructed from materials that facilitate low-cost manufacture.

公开(公告)号：US06843133B2

公开(公告)日：2005-01-18

申请号：US10438446

申请日：2003-05-15

Applicant: David A. Broden ,  David A. Horky

Inventor： David A. Broden ,  David A. Horky

IPC: G01L13/06 ,  G01L9/00 ,  G01L13/02 ,  G01L19/06 ,  G01L9/02

CPC classification number: G01L9/0072

Abstract: A capacitive pressure transmitter is provided. In one aspect, the transmitter includes a capacitive pressure sensor coupled directly to the measured media without any intervening fluid isolation. A filter is preferably used to keep particulates from reaching the measuring diaphragm. In another aspect, a capacitive pressure transmitter is provided with at least one self-contained isolator interposed between a process connection and the capacitive pressure sensor. In both aspects, the capacitive pressure transmitter is relatively small and preferably constructed from materials that facilitate low-cost manufacture.

Abstract translation: 提供电容式压力变送器。 在一个方面，发射机包括直接耦合到测量介质的电容式压力传感器，而没有任何中间的流体隔离。 优选使用过滤器来保持微粒到达测量隔膜。 在另一方面，电容式压力变送器设置有插入在过程连接和电容式压力传感器之间的至少一个独立的隔离器。 在两个方面，电容式压力变送器相对较小，并且优选地由便于低成本制造的材料构成。

公开(公告)号：US06839546B2

公开(公告)日：2005-01-04

申请号：US10128769

申请日：2002-04-22

Applicant: Robert C. Hedtke

Inventor： Robert C. Hedtke

IPC: G08C19/00 ,  G01D1/00 ,  G01D3/08 ,  G01D5/12 ,  G08C19/02 ,  H04B17/00

CPC classification number: G01D3/08 ,  G01D5/12

Abstract: A process transmitter is configured to measure a process variable of an industrial process. A housing has a first cavity which houses first transmitter electronic circuitry and provides a barrier between the first transmitter electronic circuitry and second transmitter electronic circuitry. A non-physical electromagnetic link between the first transmitter electronic circuitry and the second transmitter electronic circuitry configured to carry data therebetween.

公开(公告)号：US6089097A

公开(公告)日：2000-07-18

申请号：US807999

申请日：1997-03-03

Applicant: Roger L. Frick ,  Bennett L. Louwagie ,  Adrian C. Toy

Inventor： Roger L. Frick ,  Bennett L. Louwagie ,  Adrian C. Toy

IPC: G01L9/00 ,  G01L9/12 ,  G01L13/06

CPC classification number: G01L9/0075 ,  G01L9/125 ,  Y10T29/49142

Abstract: A transmitter in a process control system transmits a pressure over a process control loop. The transmitter includes I/O circuitry, compensation circuitry and an absolute pressure sensor. The I/O circuitry transmits information over the process control loop. Compensation circuitry receives a pressure related signal and responsively controls the I/O circuitry to transmit pressure information on the loop. The absolute pressure sensor includes a cavity which deforms as the sensor deflects in response to an applied pressure. A sensor in the cavity provides the pressure related signal to the compensation circuitry in response to the deformation.

Abstract translation: 过程控制系统中的变送器通过过程控制回路传送压力。 变送器包括I / O电路，补偿电路和绝对压力传感器。 I / O电路通过过程控制回路传输信息。 补偿电路接收与压力相关的信号，并且响应地控制I / O电路传送环路上的压力信息。 绝对压力传感器包括当传感器响应于施加的压力而偏转时变形的空腔。 空腔中的传感器响应于变形而将补偿电路的压力相关信号提供给补偿电路。