公开(公告)号：WO2007126731A3

公开(公告)日：2008-01-17

申请号：PCT/US2007007395

申请日：2007-03-26

Applicant: ROSEMOUNT INC ,  KLEVEN LOWELL A

Inventor： KLEVEN LOWELL A

IPC: G01D3/028

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：WO2008115346A2

公开(公告)日：2008-09-25

申请号：PCT/US2008002849

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

CPC classification number: G01L19/003 ,  G01L19/0061 ,  G01L19/0084 ,  G01L19/0645

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.

Abstract translation: 压力变送器（100）包括将过程压力室（104）与电子室（106）分开的金属壁（102）。 金属壁（102）具有带有朝向过程压力室（104）的孔架（110）的阶梯孔（108）。 金属头部（112）具有阶梯式外边缘（114），头部搁架接触钻架。 金属头部（112）包括至少一个电馈通件（122,124），其具有邻近阶梯状外缘（114）的玻璃 - 金属密封件（126,128）。 焊接密封件（130）将阶梯式外边缘密封到阶梯孔。

公开(公告)号：WO9843051A2

公开(公告)日：1998-10-01

申请号：PCT/US9806008

申请日：1998-03-26

Applicant: ROSEMOUNT INC

Inventor： KLEVEN LOWELL A ,  HEDTKE ROBERT C ,  WIKLUND DAVID E

IPC: G01F1/32 ,  G01F15/02

CPC classification number: G01F15/024 ,  G01F1/3254 ,  G01F1/329

Abstract: A vortex sensor (11) senses generated vortices and provides a vortex signal. A filtering circuit (68) is coupled to the vortex sensor (11) to receive the vortex signal and provide an output indicative of fluid flow. A temperature sensor (82) senses a temperature of the fluid and provides a temperature value, while a pressure sensor (86) senses a pressure of the fluid and provides a pressure value. A processor (70, 70A) is operably coupled to the filtering circuit (68), the temperature sensor (82), and the pressure sensor (86) for receiving the output, the temperature value, and the pressure value, respectively. The processor (70, 70A) calculates a calibration factor as a function of the output, the temperature value, and the pressure value for use in calculating the output value indicative of the flow rate of the fluid.

Abstract translation: 涡流传感器（11）感测产生的涡流并提供涡流信号。 过滤电路（68）耦合到涡流传感器（11）以接收涡流信号并提供指示流体流动的输出。 温度传感器（82）感测流体的温度并提供温度值，而压力传感器（86）感测流体的压力并提供压力值。 处理器（70,70A）可操作地耦合到过滤电路（68），温度传感器（82）和压力传感器（86），用于分别接收输出，温度值和压力值。 处理器（70,70A）根据用于计算表示流体流量的输出值的输出，温度值和压力值来计算校准因子。

公开(公告)号：WO2013081758A2

公开(公告)日：2013-06-06

申请号：PCT/US2012062559

申请日：2012-10-30

Applicant: ROSEMOUNT INC

Inventor： KLEVEN LOWELL A

IPC: G01K13/02

CPC classification number: G01K1/16 ,  G01K1/08 ,  G01K13/02 ,  Y10T29/49826

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.

Abstract translation: 提供一种用于保护插入到移动过程流体中的传感器（13）的传感器管（12,120）。 传感器管（12,120）包括用于安装到处理容器的过程接口部分（16）和从过程接口部分（16）延伸到密封端（22,404）的延伸部分。 延伸部分包括具有纵向轴线的扭曲部分（20）。 过程接口部分（16）和延伸部分限定了传感器孔（36），其构造成在其中接收传感器（13）。 扭转部分（20）具有包括至少三个相等尺寸的壁的横截面，并且其中所述壁沿着扭转部分的纵向轴线形成螺旋线。

公开(公告)号：WO2009035583A2

公开(公告)日：2009-03-19

申请号：PCT/US2008010522

申请日：2008-09-09

Applicant: ROSEMOUNT INC ,  KLEVEN LOWELL A ,  SCHULTE JOHN P

Inventor： KLEVEN LOWELL A ,  SCHULTE JOHN P

CPC classification number: 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.

Abstract translation: 过程变送器（200）包括监视过程变量的至少一个传感器（202）和耦合到该至少一个传感器并被配置成提供过程变量数据的模数（A / D）转换器电路（204） 指示过程变量值。 数字信号处理器（DSP）（210）耦合到A / D转换器电路（204）以接收过程变量数据。 DSP包括协处理器（215），其被配置为接收来自A / D转换器电路（204）的过程变量数据并对其执行计算以生成输出数据。 过程变送器的通信电路（250,280）被配置为控制可以耦合到过程变送器的环路布线（145）上的通信，或者控制与过程变送器的无线通信。 与DSP（210）的协处理器分离的微处理器（230）耦合在协处理器（215）和通信电路之间，以控制从DSP到通信电路的输出数据的移动。

公开(公告)号：IN877MUN2014A

公开(公告)日：2015-04-17

申请号：IN877MUN2014

申请日：2014-05-09

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：AU2012346409B2

公开(公告)日：2015-02-19

申请号：AU2012346409

申请日：2012-10-30

Applicant: ROSEMOUNT INC

Inventor： KLEVEN LOWELL A

IPC: G01K13/02 ,  G01K1/08

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：GB2337331A8

公开(公告)日：2000-01-11

申请号：GB9921315

申请日：1998-03-26

Applicant: ROSEMOUNT INC

Inventor： KLEVEN LOWELL A ,  HEDTKE ROBERT C ,  WIKLUND DAVID E

IPC: G01F1/32 ,  G01F15/02

Abstract: A method and apparatus measures a fluid flow using generated vortices. A flow rate is calculated from at least the frequency of the vortices. Warnings are generated for other characteristics of the vortices and fluid measure.

公开(公告)号：BR8807545A

公开(公告)日：1990-04-17

申请号：BR8807545

申请日：1988-06-02

Applicant: ROSEMOUNT INC

Inventor： KLEVEN LOWELL A

IPC: G01W1/00 ,  G08B19/02 ,  B64D15/00 ,  G01D1/16

Abstract: An ice detector circuit for sensing an ice deposition on a sensing surface of an ice detector probe from an air mass flowing relative to the probe. The probe includes a heater to heat the sensing surface and a temperature sensor for sensing the sensing surface temperature during heating. The temperature sensor provides the circuit with an output having a level varying as a function of the sensing surface temperature. The circuit includes a controller which selectively energizes the heater, a timer which provides a timing output representative of a time interval elapsed between selected temperature sensor output levels, and computing means, such as a microprocessor, which computes an output representative of ice deposition as a function of a predetermined relationship between ice deposition and the timing output.

公开(公告)号：DE19882239B3

公开(公告)日：2015-03-12

申请号：DE19882239

申请日：1998-03-26

Applicant: ROSEMOUNT INC

Inventor： KLEVEN LOWELL A ,  HEDTKE ROBERT C ,  WIKLUND DAVID

IPC: G01F1/32 ,  G01F15/02

Abstract: Verfahren zum Betreiben eines Durchflussmessers zum Messen eines Massendurchflusses eines Fluids mit den Schritten: Erzeugen von Wirbeln im Fluid; Überwachen (105) einer Frequenz und einer Amplitude, die mit den Wirbeln in Beziehung stehen; Berechnen (109) der Durchflussrate mindestens aus der überwachten Frequenz; Bereitstellen (107) eines ersten Dichtewertes als Funktion mindestens der überwachten Amplitude; Überwachen (102) mindestens einer Temperatur des Fluids; Überwachen (102) eines Drucks des Fluids; Bereitstellen (106) eines zweiten Dichtewertes als Funktion mindestens der überwachten Temperatur und des überwachten Drucks; und Vergleichen des ersten Dichtewertes mit dem zweiten Dichtewert zum Berechnen (110) eines Kalibrierungsfaktors; Korrigieren der berechneten Durchflussrate und Bestimmen des Massendurchflusses.