公开(公告)号：US08160535B2

公开(公告)日：2012-04-17

申请号：US12125187

申请日：2008-05-22

申请人： John A. Kielb ,  Robert J. Karschnia ,  Brian L. Westfield ,  Kelly M. Orth ,  David A. Broden

发明人： John A. Kielb ,  Robert J. Karschnia ,  Brian L. Westfield ,  Kelly M. Orth ,  David A. Broden

IPC分类号： H04B1/16 ,  G08B23/00 ,  G05F1/00

CPC分类号： G05B19/4185 ,  G01D21/00 ,  G05B2219/31121 ,  G05B2219/33192 ,  G05B2219/34313 ,  G08C17/02 ,  Y02P80/114 ,  Y02P90/18 ,  Y02P90/86

摘要： An adapter for coupling to a process control transmitter of the type used to monitor a process variable in an industrial process is provided. The adapter includes I/O circuitry configured to couple to a two wire process control loop and to the process control transmitter and communicate on the process control loop. Wireless communication circuitry couples to the two wire process control loop and is configured to transmit an RF signal. Power supply circuitry provides power to the wireless communication circuitry.

摘要翻译： 提供了用于耦合到用于监视工业过程中的过程变量的类型的过程控制发送器的适配器。 适配器包括被配置为耦合到两线制过程控制回路和过程控制变送器并且在过程控制回路上进行通信的I / O电路。 无线通信电路耦合到两线制过程控制回路并被配置为发送RF信号。 电源电路为无线通信电路提供电力。

公开(公告)号：US20080253058A1

公开(公告)日：2008-10-16

申请号：US11787048

申请日：2007-04-13

申请人： Swapan Chakraborty ,  David A. Broden

发明人： Swapan Chakraborty ,  David A. Broden

IPC分类号： G01L7/08

CPC分类号： G01L9/0072

摘要： Pressure and mechanical sensors include a sensing component formed of a titanium and tantalum alloy having an elastic (Young's) modulus of less than about 80 GPa and a tensile strength of greater than about 1,000 MPa. The high strength and low elastic modulus, together with very low temperature dependence of the elastic modulus and very low linear thermal expansion, result in high resolution and precise measurement over a large temperature range.

公开(公告)号：US20080223140A1

公开(公告)日：2008-09-18

申请号：US12080532

申请日：2008-04-03

申请人： David A. Broden

发明人： David A. Broden

IPC分类号： G01L9/12

CPC分类号： G01L13/025 ,  G01L19/0046

摘要： A capacitive pressure sensor for an industrial process transmitters comprises a housing, a sensing diaphragm, an electrode and a fill fluid. The housing includes an interior cavity and a channel extending from an exterior of the housing to the cavity. The sensing diaphragm is disposed within the interior cavity opposite the electrode. The fill fluid occupies the interior cavity such that a pressure from the channel is conveyed to the sensing diaphragm to adjust a capacitance between the electrode and the sensing diaphragm. The fill fluid has a dielectric constant higher than about 3.5. In various embodiments, the pressure sensor has a diameter less than approximately 3.175 centimeters (˜1.25 inches), the electrode has a diameter less than approximately 1 cm (˜0.4 inches), the pressure sensor has a capacitance of approximately 5 to approximately 10 pico-farads, and the fill fluid is comprised of hydraulic fluid having a liquid additive.

摘要翻译： 用于工业过程变送器的电容式压力传感器包括外壳，感测隔膜，电极和填充流体。 壳体包括内部空腔和从壳体的外部延伸到空腔的通道。 传感膜片设置在与电极相对的内腔内。 填充流体占据内部空腔，使得来自通道的压力被传送到感测膜片以调节电极和感测膜片之间的电容。 填充液的介电常数高于约3.5。 在各种实施例中，压力传感器的直径小于约3.175厘米（〜1.25英寸），电极具有小于约1厘米（〜0.4英寸）的直径，压力传感器具有约5至约10皮克的电容 并且填充流体由具有液体添加剂的液压流体组成。

公开(公告)号：US6009758A

公开(公告)日：2000-01-04

申请号：US974614

申请日：1997-11-19

申请人： William E. Petrich ,  David A. Broden ,  Paul C. Sundet ,  Scott D. Nelson

发明人： William E. Petrich ,  David A. Broden ,  Paul C. Sundet ,  Scott D. Nelson

IPC分类号： F16K27/02 ,  G01L7/00 ,  G01L19/00

CPC分类号： F16K27/0263 ,  G01L19/0015 ,  Y10T137/87249 ,  Y10T137/87885

摘要： A manifold includes a body having generally planar inlet surface. The inlet surface includes a first inlet and a second inlet adapted for coupling to a pressurized process fluid. An outlet surface on the manifold is adapted for coupling to a co-planar transmitter and is at angle relative to the inlet surface. The manifold includes an equalizing valve surface opposite the outlet surface, and a perimeter therebetween. The outlet surface includes first and second outlets in fluid communication with the first and second inlets, respectively.

公开(公告)号：US5870695A

公开(公告)日：1999-02-09

申请号：US804613

申请日：1997-02-24

申请人： Gregory C. Brown ,  David A. Broden

发明人： Gregory C. Brown ,  David A. Broden

IPC分类号： G01F1/36 ,  G01F1/88 ,  G01F15/06 ,  G01F23/14 ,  G01F23/18 ,  G01L7/08 ,  G01L9/04 ,  G01L19/00 ,  G01L19/08 ,  G01L7/00

CPC分类号： G01F23/18 ,  G01F1/363 ,  G01F1/50 ,  G01F1/88 ,  G01F15/063 ,  G01L19/0007 ,  G01L19/0015 ,  G01L19/083 ,  G01L9/045

摘要： A master transmitter couples to first and second slave units through a bus. The slave units provide outputs to the bus related to first and second pressures of a process. The bus provides power to the units and carries signals. The master transmitter is adapted to couple to a two-wire process control loop which wholly powers the system.

摘要翻译： 主发送器通过总线耦合到第一和第二从属单元。 从属单元向总线提供与过程的第一和第二压力相关的输出。 总线为单元供电并携带信号。 主发送器适于耦合到完全为系统供电的两线制过程控制回路。

公开(公告)号：US5668322A

公开(公告)日：1997-09-16

申请号：US661302

申请日：1996-06-13

申请人： David A. Broden

发明人： David A. Broden

IPC分类号： G01L19/00 ,  G01L7/00 ,  E03B11/00

CPC分类号： G01L19/0015 ,  Y10T137/9029

摘要： A transmitter of the type used in the process control industry includes a sensor for sensing a process variable and a transmitter body having a sensor coupling. A sensor extension couples to the sensor coupling and includes a sensor coupling face. A first flange interface has a process face which provides a process connection and a sensor face which provides a sensor connection. A passageway couples the process connection to the sensor connection. The first flange interface is coupled to the sensor extension by a coupling mechanism. The sensor extension and the first flange interface may be moved throughout, a range of positions relative to one another.

摘要翻译： 在过程控制行业中使用的类型的发射器包括用于感测过程变量的传感器和具有传感器耦合的发射器主体。 传感器延伸件耦合到传感器联轴器并且包括传感器联接面。 第一法兰接口具有提供过程连接的工艺面和提供传感器连接的传感器面。 通道将过程连接耦合到传感器连接。 第一法兰接口通过联接机构联接到传感器延伸部。 传感器延伸部分和第一法兰接口可以遍及各个位置相对移动。

公开(公告)号：US5606513A

公开(公告)日：1997-02-25

申请号：US258262

申请日：1994-06-09

申请人： Bennett L. Louwagie ,  Gregory S. Munson ,  David E. Wiklund ,  Michael J. Zweber ,  David A. Broden ,  Brian J. Bischoff ,  Gary P. Corpron

发明人： Bennett L. Louwagie ,  Gregory S. Munson ,  David E. Wiklund ,  Michael J. Zweber ,  David A. Broden ,  Brian J. Bischoff ,  Gary P. Corpron

IPC分类号： G01F1/36 ,  G01F1/88 ,  G01F15/06 ,  G01F23/14 ,  G01F23/18 ,  G01L7/08 ,  G01L9/04 ,  G01L19/00 ,  G01L19/08 ,  G01C25/00

CPC分类号： G01F23/18 ,  G01F1/363 ,  G01F1/50 ,  G01F1/88 ,  G01F15/063 ,  G01L19/0007 ,  G01L19/0015 ,  G01L19/083 ,  G01L9/045

摘要： 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.

摘要翻译： 双线变送器使用内部压力传感器感测压力。 发射机包括用于接收来自与发射机分离的远程传感器的过程变量的输入。 发射机中的电路在与感测的压力和过程变量相关的两线过程控制回路上发送信息。

公开(公告)号：US5287746A

公开(公告)日：1994-02-22

申请号：US868451

申请日：1992-04-14

申请人： David A. Broden

发明人： David A. Broden

IPC分类号： G01L13/02 ,  G01L7/08 ,  G01L9/00 ,  G01L19/06 ,  G01L19/14

CPC分类号： G01L19/0663 ,  G01L13/026 ,  G01L19/142 ,  G01L19/147

摘要： A transmitter with a flame arresting header senses a pressure of a process fluid with a diaphragm which is sealed to the header. The diaphragm transfers the pressure of the process fluid acting an outer surface of the diaphragm to a fill fluid that isolates an inner surface of the diaphragm, and a pressure sensor enclosed in the transmitter senses the pressure of the fill fluid providing an output representative of the pressure of the process fluid. The header includes a chamber on the header's outer face and a passageway extending from the chamber to a tapered opening inside the transmitter with a first portion adjacent to the tapered opening shaped to receive an inlet tube leading to the sensor and a second flame isolating portion open to the chamber. The fill fluid fills the chamber, the passageway, and the inlet tube and is sealed in with a tapered seal pressed into the tapered opening around the inlet tube. The second passageway portion is shaped for flame isolating the tapered seal from the process fluid.

摘要翻译： 具有阻火头的变送器用密封到集管的隔膜感测工艺流体的压力。 隔膜将作用于隔膜的外表面的工艺流体的压力传递到隔离隔膜内表面的填充流体，并且包封在发射器中的压力传感器感测填充流体的压力，从而提供代表 工艺流体的压力。 集管包括在集管的外表面上的腔室和从腔室延伸到发射器内部的锥形开口的通道，其中第一部分与锥形开口相邻，该第一部分成形为接收通向传感器的入口管，第二火焰隔离部分打开 到房间 填充流体填充腔室，通道和入口管，并且被密封成锥形密封件，压入入口管周围的锥形开口中。 第二通道部分成形为将锥形密封件与工艺流体隔离。

公开(公告)号：USD318432S

公开(公告)日：1991-07-23

申请号：US184696

申请日：1988-04-22

申请人： David A. Broden ,  David W. Lee ,  Timothy A. Miller ,  Debra K. Zeller

设计人： David A. Broden ,  David W. Lee ,  Timothy A. Miller ,  Debra K. Zeller

公开(公告)号：US4612812A

公开(公告)日：1986-09-23

申请号：US766123

申请日：1985-08-15

申请人： David A. Broden

发明人： David A. Broden

IPC分类号： F16K7/17 ,  F16K7/12 ,  G01L7/08 ,  G01L9/00 ,  G01L9/12

CPC分类号： G01L9/0072 ,  G01L19/0046 ,  G01L19/0618 ,  G01L9/0048

摘要： A sensing cell for sensing pressures which includes a housing and a diaphragm that deflects relative to a housing surface under pressure differentials, the movement of the diaphragm is sensed to provide indications of pressure changes. The diaphragm has a center disc like deflecting portion, an outer peripheral support ring that is clamped for supporting the diaphragm in a housing, and an integral, reduced section web joining the center portion and the support ring. The reduced cross section web causes the diaphragm to act as a free edge diaphragm during deflection. The housing and/or the diaphragm are configured so that at near a rated overpressure stop means support the central disc portion at its annular edge where the web joins the central disc portion to reduce the maximum stress on the web and thus prevent over stressing of the web portion of the diaphragm under maximum overpressures, to reduce hysteresis and innaccuracies.

摘要翻译： 用于感测压力的感测单元，其包括在压力差下相对于壳体表面偏转的壳体和隔膜，感测到隔膜的移动以提供压力变化的指示。 隔膜具有中心盘状偏转部分，被夹紧以将隔膜支撑在壳体中的外周支撑环，以及连接中心部分和支撑环的整体的减小截面腹板。 减小的横截面网使得隔膜在偏转期间用作自由边缘隔膜。 壳体和/或隔膜被构造成使得在接近额定的过压停止装置的情况下，在其环形边缘处支撑中心盘部分，其中腹板连接中心盘部分以减小幅材上的最大应力，从而防止 在最大超压下隔膜的腹板部分，以减少滞后和无差错。