公开(公告)号：WO1989002580A1

公开(公告)日：1989-03-23

申请号：PCT/US1988003129

申请日：1988-09-12

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  KLEVEN, Lowell, A. ,  CORPRON, Gary, P.

IPC: G01F01/32

CPC classification number: G01F1/3263

Abstract: A vortex sensor (20) in a vortex flowmeter (10) that has a single sensing diaphragm (35) parallel to the direction of flow that is sensitive to differential pressures caused by vortices shed by a vortex shedding bar (19) associated with the sensing diaphragm (35). A beam (36) is attached to the sensing diaphragm (35) and it transfers the deflecting motion of the sensing diaphragm (35) to a sensor (48) external to the flow passageway (14). The sensor (48) provides an output indicating motions of the beam (36) caused by the beam pivoting when the sensing diaphragm (35) deflects. The beam (36) is pivoted on a relatively rigid, fluid-tight isolator diaphragm (40) with one end of the beam (36) on the outside of the isolator diaphragm (40). The sensing diaphragm (35) rejects variations in the static pressure, that is, increases and decreases of the static pressure on both sides of the diaphragm (35).

公开(公告)号：WO2007126731A2

公开(公告)日：2007-11-08

申请号：PCT/US2007/007395

申请日：2007-03-26

Applicant: ROSEMOUNT INC. ,  KLEVEN, Lowell, A.

Inventor： KLEVEN, Lowell, A.

CPC classification number: G01D3/028 ,  G01D5/24

Abstract: A circuit (100) that senses a process variable (PROC. VAR.), comprises a voltage divider (106) that includes first (102) and second (104) capacitances. At least one of the capacitances is varied by the process variable. Divider ends (128,130) receive modulated potentials (El, E2), and a divider center tap (108) coupled to a detector. The detector has a detector output (118) representing carrier frequency range components. A control circuit (120) controls a baseband envelope of the modulated potentials as a function of the detector output.

Abstract translation: 感测过程变量（PROC。VAR。）的电路（100）包括包括第一（102）和第二（104）电容的分压器（106）。 至少一个电容由过程变量变化。 分频器端（128,130）接收调制电位（E1，E2）和耦合到检测器的分频器中心抽头（108）。 检测器具有表示载波频率范围分量的检测器输出（118）。 控制电路（120）控制调制电位的基带包络作为检测器输出的函数。

公开(公告)号：WO2003019205A1

公开(公告)日：2003-03-06

申请号：PCT/US2002/026266

申请日：2002-08-16

Applicant: ROSEMOUNT INC.

Inventor： KLEVEN, Lowell, A.

IPC: G01R19/22

CPC classification number: G01F1/3263 ,  G01F1/329 ,  G01F25/0076 ,  G01R19/22

Abstract: A diagnostic device for testing a piezoelectric sensor (10) includes an AC source (32) configured to apply an AC signal to the piezoelectric sensor (10) at two or more different frequencies. The response of the piezoelectric sensor (10) can be measured (48) and used for diagnostics (52).

Abstract translation: 用于测试压电传感器（10）的诊断装置包括被配置为以两个或更多个不同频率向压电传感器（10）施加AC信号的AC源（32）。 可以测量压电传感器（10）的响应（48）并用于诊断（52）。

公开(公告)号：WO2013081758A3

公开(公告)日：2013-06-06

申请号：PCT/US2012/062559

申请日：2012-10-30

Applicant: ROSEMOUNT INC.

Inventor： KLEVEN, Lowell, A.

IPC: G01K1/08 ,  G01K13/02

Abstract: A sensor tube (12, 120) for protecting a sensor (13) inserted into a moving process fluid is provided. The sensor tube (12, 120) includes a process interface section (16) for mounting to a process vessel and an extended section extending from the process interface section (16) to a sealed end (22, 404). The extended section includes a twisted section (20) having a longitudinal axis. The process interface section (16) and the extended section define a sensor bore (36) configured to receive a sensor (13) therein. The twisted section (20) has a cross section that includes at least three equally sized walls and wherein the walls form helixes along the longitudinal axis of the twisted section.

公开(公告)号：WO2012112339A1

公开(公告)日：2012-08-23

申请号：PCT/US2012/024101

申请日：2012-02-07

Applicant: ROSEMOUNT, INC. ,  KLEVEN, Lowell, A.

Inventor： KLEVEN, Lowell, A.

IPC: F16T1/48 ,  G01N29/14

CPC classification number: G01N29/14 ,  F16T1/48 ,  G01N29/04 ,  G01N29/228 ,  G01N29/2462 ,  G01N29/28 ,  G01N29/326 ,  G01N2291/0234 ,  G01N2291/0289 ,  G01N2291/2695

Abstract: A transducer assembly (50) includes an acoustic sensor element (1) and an acoustic waveguide (4). The acoustic waveguide (4) includes a rotatable acoustic coupler, a tube (4B), and a foot (4C). The foot (4C) has a mounting surface (11) that is mountable on a fluid conduit. A circuit assembly (3) couples to acoustic sensor element (1) and provides a diagnostic output.

Abstract translation: 换能器组件（50）包括声学传感器元件（1）和声波导（4）。 声波导（4）包括可旋转的声耦合器，管（4B）和脚（4C）。 脚（4C）具有可安装在流体导管上的安装表面（11）。 电路组件（3）耦合到声学传感器元件（1）并提供诊断输出。

公开(公告)号：WO2009143447A1

公开(公告)日：2009-11-26

申请号：PCT/US2009/045016

申请日：2009-05-22

Applicant: ROSEMOUNT, INC. ,  WIKLUND, David, E. ,  KLEVEN, Lowell, A.

Inventor： WIKLUND, David, E. ,  KLEVEN, Lowell, A.

IPC: G01F1/34 ,  G01N33/22 ,  G05B19/00

CPC classification number: G01F1/363 ,  G01F1/50 ,  G01F1/88 ,  G01F15/046 ,  G01K17/06

Abstract: A process fluid flow device (12) includes a power supply module (24), a process communication module (20), a processor (26) and measurement circuitry (28). The process communication circuitry (20) is coupled to the power supply module (24) and to the processor (26). The measurement circuitry (28) is operably coupleable to plurality of process variable sensors to obtain an indication of differential pressure, static pressure and process fluid temperature. The processor (26) is configured to compute process fluid mass flow, and to use the static pressure and process fluid temperature to obtain an energy per unit mass value relative to the process fluid and to provide an energy flow indication.

Abstract translation: 过程流体流动装置（12）包括电源模块（24），过程通信模块（20），处理器（26）和测量电路（28）。 过程通信电路（20）耦合到电源模块（24）和处理器（26）。 测量电路（28）可操作地耦合到多个过程变量传感器以获得差压，静压和过程流体温度的指示。 处理器（26）被配置为计算过程流体质量流量，并且使用静态压力和过程流体温度来获得相对于过程流体的每单位质量值的能量并提供能量流量指示。

公开(公告)号：WO2010062583A1

公开(公告)日：2010-06-03

申请号：PCT/US2009/062177

申请日：2009-10-27

Applicant: ROSEMOUNT, INC. ,  KLEVEN, Lowell, A. ,  WIKLUND, David, E.

Inventor： KLEVEN, Lowell, A. ,  WIKLUND, David, E.

IPC: G01F1/34 ,  G05D7/06

CPC classification number: G01F1/363 ,  G01F1/50 ,  G01F1/88

Abstract: A process fluid flow device (12) includes process communication circuitry (20), a processor (26), and measurement circuitry (28). The process communication circuitry (20) is configured to communicate with at least one additional process device. The processor (26) is coupled to the process communication circuitry (20) and is configured to execute instructions to provide a plurality of cycles, wherein each cycle includes a number of flow- related calculations. Measurement circuitry (28) is operably coupleable to a plurality of process variable sensors to obtain an indication of differential pressure during each cycle, and to obtain static pressure, and process fluid temperature. The processor (26) is configured to compute a process fluid flow value using a current differential pressure sensor indication and at least one flow-related value calculated during a previous cycle. The process communication circuitry (20) communicates the computed process fluid flow value to the at least one additional process device.

Abstract translation: 过程流体流动装置（12）包括过程通信电路（20），处理器（26）和测量电路（28）。 过程通信电路（20）被配置为与至少一个附加过程设备进行通信。 处理器（26）耦合到处理通信电路（20），并且被配置为执行指令以提供多个周期，其中每个周期包括多个与流量有关的计算。 测量电路（28）可操作地耦合到多个过程变量传感器以获得在每个循环期间的差压指示，并获得静压力和处理流体温度。 处理器（26）被配置为使用电流差压传感器指示和在先前循环期间计算的至少一个流量相关值来计算过程流体流量值。 过程通信电路（20）将所计算的过程流体流值传送到至少一个附加过程设备。

公开(公告)号：WO2009035583A3

公开(公告)日：2009-03-19

申请号：PCT/US2008/010522

申请日：2008-09-09

Applicant: ROSEMOUNT INC. ,  KLEVEN, Lowell, A. ,  SCHULTE, John, P.

Inventor： KLEVEN, Lowell, A. ,  SCHULTE, John, P.

IPC: G01D21/00

Abstract: A process transmitter (200) includes at least one sensor (202) which monitors a process variable, and analog-to-digital (A/D) converter circuitry (204) coupled to the at least one sensor and configured to provide process variable data indicative of process variable values. A digital signal processor (DSP) (210) is coupled to the A/D converter circuitry (204) to receive the process variable data. The DSP comprises a co-processor (215) configured to receive and perform calculations on the process variable data from the A/D converter circuitry (204) to generate output data. Communications circuitry (250, 280) of the process transmitter is configured either to control communication over loop wiring (145) which can be coupled to the process transmitter, or to control wireless communications with the process transmitter. A microprocessor (230), separate from the co-processor of the DSP (210), is coupled between the co-processor (215) and the communications circuitry to control movement of the output data from the DSP to the communications circuitry.

公开(公告)号：WO2008115346A3

公开(公告)日：2008-09-25

申请号：PCT/US2008/002849

申请日：2008-03-04

Applicant: ROSEMOUNT INC. ,  KLEVEN, Lowell, A. ,  ROMO, Mark, G.

Inventor： KLEVEN, Lowell, A. ,  ROMO, Mark, G.

IPC: G01L9/00 ,  G01L19/00 ,  G01L19/14

Abstract: A pressure transmitter (100) comprises a metal wall (102) separating a process pressure chamber (104) from an electronics compartment (106). The metal wall (102) has a stepped bore (108) with a bore shelf (110) facing the process pressure chamber (104). A metal header (112) has a stepped outer rim (114) with a header shelf that contacts the bore shelf. The metal header (112) includes at least one electrical feedthrough (122,124) with a glass-to-metal seal (126,128) adjacent the stepped outer rim (114). A welded seal (130) seals the stepped outer rim to the stepped bore.

公开(公告)号：WO1997012209A1

公开(公告)日：1997-04-03

申请号：PCT/US1996015444

申请日：1996-09-26

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  KLEVEN, Lowell, A. ,  LESMEISTER, Brad, L.

IPC: G01F01/58

CPC classification number: G01F1/64 ,  G01F1/58 ,  G01F1/584

Abstract: A flow tube (10) has a metal outer tube (12) and is lined (26) with an ETFE fluoropolymer that is resistant to corrosive chemicals and mechanical damage even at high temperatures. The inner surface (22) of the metal tube (12) is coated with a bonding metal (28) that can be securely bonded to the outer metal tube (12) and also forms a strong bond with ETFE fluoropolymer. After the bonding metal (28) has been applied, a layer (26) of a desired thickness of the ETFE fluoropolymer is molded in place to form an inner liner for the flow tube (10).

Abstract translation: 流管（10）具有金属外管（12），并且衬有（26）ETFE含氟聚合物，即使在高温下也能耐腐蚀性化学物质和机械损伤。 金属管（12）的内表面（22）涂覆有能够牢固地结合到外金属管（12）上并且与ETFE含氟聚合物形成牢固结合的粘合金属（28）。 在施加粘合金属（28）之后，将ETFE含氟聚合物所需厚度的层（26）成型到位，以形成流管（10）的内衬。