公开(公告)号：US08578783B2

公开(公告)日：2013-11-12

申请号：US13245306

申请日：2011-09-26

Applicant: Robert C. Hedtke ,  John Schulte ,  David A. Broden

Inventor： Robert C. Hedtke ,  John Schulte ,  David A. Broden

IPC: G01L9/00 ,  G01L19/00

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.

Abstract translation: 过程流体压力变送器具有远程压力传感器。 发射机包括电子设备壳体和设置在电子设备壳体中并被配置为根据过程通信协议进行通信的环路通信器。 控制器设置在电子设备外壳内并耦合到环路通信器。 传感器测量电路设置在电子设备外壳内并耦合到控制器。 远程压力传感器壳体被配置为直接耦合到过程并且与电子器件壳体间隔开。 压力传感器设置在远程压力传感器壳体内。 压力传感器形成至少一个具有随过程流体压力变化的电特性的电气部件。 电气部件的部分直接连接到可操作地将压力传感器连接到传感器测量电路的多导体电缆。

公开(公告)号：US08042401B2

公开(公告)日：2011-10-25

申请号：US12137648

申请日：2008-06-12

Applicant: David A. Broden

Inventor： David A. Broden

IPC: G01L9/00

CPC classification number: G01L19/0046 ,  G01L19/0645

Abstract: A process fluid pressure transmitter includes a pressure sensor, transmitter electronics, and an isolation system. The pressure sensor has an electrical characteristic that changes with pressure. The transmitter electronics are coupled to the pressure sensor to sense the electrical characteristic and calculate a pressure output. The isolation system includes a base member, and isolation diaphragm, and a fill-fluid. The isolation diaphragm is mounted to the base member and interposed between the pressure sensor and a process fluid. The fill-fluid is disposed between the isolation diaphragm and the pressure sensor. The base member and the isolation diaphragm are constructed from different materials such that the coefficient of thermal expansion of the isolation diaphragm is larger than the coefficient of thermal expansion of the base member.

Abstract translation: 过程流体压力变送器包括压力传感器，变送器电子部件和隔离系统。 压力传感器具有随压力而变化的电气特性。 发射器电子器件耦合到压力传感器以感测电特性并计算压力输出。 隔离系统包括基座构件和隔离隔膜以及填充流体。 隔离隔膜安装在基座构件上并插入在压力传感器和工艺流体之间。 填充流体设置在隔离膜片和压力传感器之间。 基座部件和隔离膜片由不同的材料构成，使隔离膜片的热膨胀系数大于基体部件的热膨胀系数。

公开(公告)号：US07437939B1

公开(公告)日：2008-10-21

申请号：US11787048

申请日：2007-04-13

Applicant: Swapan Chakraborty ,  David A. Broden

Inventor： Swapan Chakraborty ,  David A. Broden

IPC: G01L7/08

CPC classification number: G01L9/0072

Abstract: 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.

Abstract translation: 压力和机械传感器包括由具有小于约80GPa的弹性（杨氏）模量和大于约1,000MPa的拉伸强度的钛和钽合金形成的感测部件。 高强度和低弹性模量以及弹性模量的非常低的温度依赖性和非常低的线性热膨胀导致在大的温度范围内的高分辨率和精确的测量。

公开(公告)号：US20080245152A1

公开(公告)日：2008-10-09

申请号：US11697399

申请日：2007-04-06

Applicant: Bennett L. Louwagie ,  Christopher L. Eriksen ,  David A. Broden

Inventor： Bennett L. Louwagie ,  Christopher L. Eriksen ,  David A. Broden

IPC: G01L7/00

CPC classification number: G01L19/04 ,  G01L19/0645

Abstract: A pressure monitoring system provides a pressure sensor and a body that has a first coefficient of thermal expansion and includes at least one opening for accessing a process fluid. At least one isolation diaphragm is coupled to the body and positioned in the at least one opening. The at least one isolation diaphragm has a first surface in communication with the process fluid. At least one passageway is located in the body and configured to contain a fill fluid in communication with a second surface of the first isolation diaphragm. The at least one passageway is positioned between the first isolation diaphragm and the pressure sensor. At least one expansion chamber is coupled to the first passageway and includes an insert having a second coefficient of thermal expansion. The first coefficient of thermal expansion of the body is greater than the second coefficient of thermal expansion of the insert.

Abstract translation: 压力监测系统提供压力传感器和具有第一热膨胀系数的主体，并且包括至少一个用于进入工艺流体的开口。 至少一个隔离隔膜联接到主体并且定位在至少一个开口中。 所述至少一个隔离隔膜具有与所述工艺流体连通的第一表面。 至少一个通道位于主体中并且构造成容纳与第一隔离隔膜的第二表面连通的填充流体。 至少一个通道位于第一隔离隔膜和压力传感器之间。 至少一个膨胀室联接到第一通道并且包括具有第二热膨胀系数的插入件。 身体的第一热膨胀系数大于插入件的第二热膨胀系数。

公开(公告)号：US20080087335A1

公开(公告)日：2008-04-17

申请号：US11580512

申请日：2006-10-13

Applicant: Bennett L. Louwagie ,  David A. Broden

Inventor： Bennett L. Louwagie ,  David A. Broden

IPC: F16K37/00

CPC classification number: F16K1/04 ,  F16K24/04 ,  G01L19/0015 ,  Y10T137/8326 ,  Y10T137/87249 ,  Y10T137/87885

Abstract: A process fluid pressure measurement system includes a process fluid pressure transmitter coupled to a coplanar manifold. The coplanar manifold includes a first bore coupleable to a source of process fluid, and a vent passageway connected to the first bore and terminating in a vent hole. The coplanar manifold includes at least one port configured to receive a valve stem. Directly engaging the valve stem with the coplanar manifold selectively vents the coplanar manifold. Aspects of the present invention also include a coplanar manifold for coupling fluid to a process fluid pressure transmitter, and a method of venting such a coplanar manifold.

Abstract translation: 过程流体压力测量系统包括耦合到共面歧管的过程流体压力变送器。 共面歧管包括可连接到过程流体源的第一孔和连接到第一孔并且终止于通气孔中的通气通道。 共面歧管包括构造成接收阀杆的至少一个端口。 直接接合阀杆与共面歧管选择性地排出共面歧管。 本发明的方面还包括用于将流体耦合到过程流体压力变送器的共面歧管以及排放这种共面歧管的方法。

公开(公告)号：US07115118B2

公开(公告)日：2006-10-03

申请号：US10408743

申请日：2003-04-07

Applicant: David A. Broden

Inventor： David A. Broden

IPC: A61K9/22

CPC classification number: A61M5/14276 ,  A61M2005/14513 ,  A61M2205/0244

Abstract: An implantable pressure-activated microvalve is disclosed. The valve includes a chamber that can be coupled to an external reservoir. A deflectable diaphragm is fluidically coupled to the chamber and arranged such that pressure of an in vivo fluid will bear against the deflectable diaphragm. When the pressure exceeds a selected threshold, the diaphragm deflects and allows material within the chamber to mix with the in vivo fluid.

Abstract translation: 公开了一种可植入的压力激活微型阀。 该阀包括可联接到外部储存器的室。 可偏转膜片流体耦合到腔室并且布置成使得体内流体的压力将抵靠可偏转膜片。 当压力超过选择的阈值时，隔膜偏转并允许室内的材料与体内流体混合。

公开(公告)号：US5157972A

公开(公告)日：1992-10-27

申请号：US677309

申请日：1991-03-29

Applicant: David A. Broden ,  Brian J. Bischoff ,  Bennett L. Louwagie

Inventor： David A. Broden ,  Brian J. Bischoff ,  Bennett L. Louwagie

IPC: G01L7/08 ,  G01L9/00 ,  G01L9/12 ,  G01L13/00

CPC classification number: G01L9/0073 ,  Y10T29/43

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.

Abstract translation: 金属薄膜将隔膜层的半导体接合区域结合到高模量支撑块的陶瓷接合区域。 该装置将压力感测隔膜与不期望的应变隔离，从而提高传感器精度。 通过支撑块的通道将流体压力耦合到感测膜片以使其偏转。 隔膜和支撑块上的电容器板之间的电容耦合感测偏转并提供代表压力的输出。

公开(公告)号：US07956738B2

公开(公告)日：2011-06-07

申请号：US11842356

申请日：2007-08-21

Applicant: Robert J. Karschnia ,  Charles R. Willcox ,  David A. Broden ,  Brian L. Westfield ,  Kelly M. Orth

Inventor： Robert J. Karschnia ,  Charles R. Willcox ,  David A. Broden ,  Brian L. Westfield ,  Kelly M. Orth

IPC: H04Q11/04 ,  G08B29/00 ,  G08B1/08

CPC classification number: G05B19/4185 ,  G05B2219/33192 ,  Y02P90/18 ,  Y02P90/86

Abstract: A field device for use in an industrial process control or monitoring system includes terminals configured to connect to a two-wire process control loop. The loop carries data and provides power to the field device. RF circuitry in the field device is provided for radio frequency communication. A power supply powers the RF circuitry using power received from the two-wire process control loop.

Abstract translation: 用于工业过程控制或监测系统的现场设备包括被配置为连接到二线过程控制回路的终端。 环路承载数据，并向现场设备提供电源。 提供现场设备中的RF电路用于射频通信。 电源使用从两线制过程控制回路接收的功率为射频电路供电。

公开(公告)号：US07918134B2

公开(公告)日：2011-04-05

申请号：US12287106

申请日：2008-10-06

Applicant: Robert C. Hedtke ,  Charles R. Willcox ,  David A. Broden ,  Andrew Juri Klosinski ,  John P. Schulte

Inventor： Robert C. Hedtke ,  Charles R. Willcox ,  David A. Broden ,  Andrew Juri Klosinski ,  John P. Schulte

IPC: G01L9/12

CPC classification number: G01L27/005 ,  G01L27/007 ,  Y02P80/114

Abstract: A process transmitter for measuring a process variable in an industrial process comprises a sensor module, a heating device and transmitter circuitry. The sensor module has a sensor for sensing a process variable of an industrial process and generating a sensor signal. The heating device is connected to the sensor module for generating a heat pulse to influence generation of the sensor signal. The transmitter circuitry is connected to the sensor and the heating device. The transmitter circuitry verifies operation of the sensor by measuring a change in the sensor signal due to the heat pulse. In one embodiment of the invention, the heat pulse thermally expands a volume of a fill fluid within the process transmitter. In another embodiment, the heat pulse changes a physical property, such as dielectric, of a fill fluid within the process transmitter.

Abstract translation: 用于测量工业过程中的过程变量的过程变送器包括传感器模块，加热装置和发射器电路。 传感器模块具有用于感测工业过程的过程变量并产生传感器信号的传感器。 加热装置连接到传感器模块，用于产生热脉冲以影响传感器信号的产生。 发射机电路连接到传感器和加热装置。 发射机电路通过测量由于热脉冲引起的传感器信号的变化来验证传感器的操作。 在本发明的一个实施例中，热脉冲热膨胀过程变送器内的填充流体的体积。 在另一个实施例中，热脉冲改变过程变送器内的填充流体的物理性质，例如电介质。

公开(公告)号：US07819014B1

公开(公告)日：2010-10-26

申请号：US12428968

申请日：2009-04-23

Applicant: David A. Broden

Inventor： David A. Broden

IPC: G01L9/12

CPC classification number: G01L9/0072

Abstract: A field device includes a capacitive gauge pressure sensor configured to measure a gage pressure of a process media. A sensor body of the pressure sensor includes first and second chambers. The second chamber is under vacuum and forms a vacuum dielectric for the pressure sensor. An atmospheric reference port is formed in the sensor body and maintains the first chamber in equilibrium with ambient atmospheric pressure. A process media inlet port of the sensor is configured to couple to a process media source. The sensor includes a conductive deflectable diaphragm between the second chamber and the media inlet port. A capacitive plate is disposed in the second chamber in relation to the diaphragm such that deflection of the diaphragm generates a change in capacitance. The field device also includes sensor circuitry which generates a sensor signal indicative of the gage pressure of the process media, and transmitter circuitry which transmits information relative to the sensor signal over a process communication loop.

Abstract translation: 现场设备包括配置成测量处理介质的量具压力的电容式表压传感器。 压力传感器的传感器体包括第一和第二腔室。 第二室处于真空状态，并形成用于压力传感器的真空电介质。 大气参考端口形成在传感器主体中，并保持第一室与环境大气压力平衡。 传感器的过程介质入口端口被配置为耦合到处理介质源。 该传感器包括在第二室和介质入口之间的导电可偏转隔膜。 电容板相对于隔膜设置在第二室中，使得隔膜的偏转产生电容的变化。 现场设备还包括生成表示过程介质的量具压力的传感器信号的传感器电路以及通过过程通信环路相对于传感器信号发送信息的发射机电路。