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公开(公告)号：WO1988009980A1
公开(公告)日：1988-12-15
申请号：PCT/US1988001869
申请日：1988-06-02
Applicant: ROSEMOUNT INC.
Inventor： ROSEMOUNT INC. , KLEVEN, Lowell, A.
IPC: G08B19/02
Abstract: An ice detector circuit (10) for sensing an ice deposition on a sensing surface (14) of an ice detector probe (12) from an air mass flowing relative to the probe (12). The probe (12) includes a heater (16) to heat the sensing surface (14) and a temperature sensor (18) for sensing the sensing surface temperature during heating. The temperature sensor (18) provides the circuit (10) with an output having a level varying as a function of the sensing surface temperature. The circuit (10) includes a controller (24) which selectively energizes the heater (16), a timer (26) which provides a timing output representative of a time interval elapsed between selected temperature sensor output levels, and computing means (28), 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.
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公开(公告)号：WO1988009941A1
公开(公告)日：1988-12-15
申请号：PCT/US1988001870
申请日：1988-06-02
Applicant: ROSEMOUNT INC.
Inventor： ROSEMOUNT INC. , KLEVEN, Lowell, A.
IPC: G01W01/00
Abstract: An ice detector probe (10) senses an ice deposition from an air mass flowing relative to the probe (10). The probe (10) includes a support (12) for installation of the probe (10) to receive the airflow and an element (30) formed on a substrate having a sensing surface (32) which directly receives the airflow. The element (30) heats the sensing surface (32) to melt an ice deposition formed thereon. The element (30) also senses the sensing surface temperature during heating and provides an output representative of such temperature.
Abstract translation: 冰检测器探针（10）感测来自相对于探针（10）流动的空气质量的冰沉积。 探针（10）包括用于安装探针（10）以容纳气流的支撑件（12）和形成在具有直接接收气流的感测表面（32）的基底上的元件（30）。 元件（30）加热感测表面（32）以熔化其上形成的冰沉积物。 元件（30）还在加热期间感测感测表面温度，并且提供代表这种温度的输出。
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公开(公告)号：WO1988008959A1
公开(公告)日：1988-11-17
申请号：PCT/US1988001552
申请日：1988-05-11
Applicant: ROSEMOUNT INC.
Inventor： ROSEMOUNT INC. , CORPRON, Gary, P. , KLEVEN, Lowell, A. , JOHNSON, Lawrence, Alan
IPC: G01B11/00
CPC classification number: G01D5/268 , G01F1/3245 , G01P13/00
Abstract: The optical displacement sensor (10) modulates intensity of the light beam as a function of the physical displacement. The sensor includes a reflector (24) positioned in a path of the light beam between a light source (12) and a light detector (14). The reflector (24) has a non-reflective portion (28) surrounded by a reflective portion (26). Relative movement (displacement) of the beam and the reflector occurs as a function of a parameter which is being sensed. In a normal (no displacement) condition, the non-reflective portion (28) can be positioned with respect to the light beam so that intensity of the light beam received by the detector (14) is at a minimum, and the sensor (14) is operating in a darkfield mode. Displacement from the normal position causes an increase in the light intensity received by the detector (14).
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公开(公告)号：EP2132546B1
公开(公告)日：2015-08-26
申请号：EP08726392.7
申请日：2008-03-04
Applicant: Rosemount, Inc.
Inventor： KLEVEN, Lowell, A. , ROMO, Mark, G.
CPC classification number: G01L19/003 , G01L19/0061 , G01L19/0084 , G01L19/0645
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公开(公告)号：EP2676065A1
公开(公告)日：2013-12-25
申请号：EP12706741.1
申请日：2012-02-07
Applicant: Rosemount Inc.
Inventor： KLEVEN, Lowell, A.
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 includes an acoustic sensor element and an acoustic waveguide. The acoustic waveguide includes a rotatable acoustic coupler, a tube, and a foot. The foot has a mounting surface that is mountable on a fluid conduit. A circuit assembly couples to acoustic sensor element and provides a diagnostic output.
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Patent Agency Ranking16.发明公开
公开(公告)号：EP2283324A1
公开(公告)日：2011-02-16
申请号：EP09751675.1
申请日：2009-05-22
Applicant: Rosemount, Inc.
Inventor： WIKLUND, David, E. , KLEVEN, Lowell, A.
CPC classification number: G01F1/363 , G01F1/50 , G01F1/88 , G01F15/046 , G01K17/06
Abstract: A process fluid flow device includes a power supply module, a process communication module, a processor and measurement circuitry. The process communication circuitry is coupled to the power supply module and to the processor. The measurement circuitry is operably coupleable to plurality of process variable sensors to obtain an indication of differential pressure, static pressure and process fluid temperature. The processor 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.
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公开(公告)号：EP0394256A1
公开(公告)日：1990-10-31
申请号：EP88906309.0
申请日：1988-06-02
Applicant: ROSEMOUNT INC.
Inventor： KLEVEN, Lowell, A.
Abstract: Le circuit détecteur de glace (10) permet de détecter un dépôt de glace sur une surface de détection (14) d'une sonde de détection de glace (12) à partir d'un écoulement d'une masse d'air. La sonde (12) comprend un élément de chauffage (16) qui chauffe la surface de détection (14) et un détecteur de température (18) pour détecter la température de la surface de détection pendant le chauffage. Le détecteur de température (18) fournit au circuit (10) un signal de sortie ayant un niveau variant en fonction de la température de la surface de détection. Le circuit (10) comprend un organe de commande (24) qui excite sélectivement l'élément de chauffage (16), une minuterie (26) qui fournit un signal de minutage représentatif d'un intervalle de temps qui s'est écoulé entre les niveaux de sortie sélectionnés du détecteur de température, ainsi que des moyens de calcul (28) tels qu'un microprocesseur qui calcule une sortie représentative du dépôt de glace en fonction d'une relation prédéterminée entre le dépôt de glace et la sortie de minutage.
Abstract translation: 冰检测器电路（10）根据气团的流动来检测冰检测探针（12）的检测表面（14）上的积冰。 探头（12）包括加热感测表面（14）的加热元件（16）和用于在加热期间感测感测表面的温度的温度传感器（18）。 温度检测器（18）根据感测表面的温度向电路（10）提供具有变化电平的输出信号。 所述电路（10）包括选择性地激励所述加热器（16）的控制器（24），定时器（26），所述定时器提供表示已经过去的时间间隔的定时信号 温度检测器的所选输出水平以及诸如微处理器的计算装置（28），该计算装置根据积冰和定时输出之间的预定关系来计算表示积冰的输出。
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公开(公告)号：EP2188596B1
公开(公告)日：2016-11-16
申请号：EP08830216.1
申请日：2008-09-09
Applicant: Rosemount Inc.
Inventor： KLEVEN, Lowell, A. , SCHULTE, John, P.
IPC: G01D21/00
CPC classification number: G01D21/00
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公开(公告)号：EP2786106A2
公开(公告)日：2014-10-08
申请号：EP12787275.2
申请日：2012-10-30
Applicant: Rosemount Inc.
Inventor： KLEVEN, Lowell, A.
CPC classification number: G01K1/16 , G01K1/08 , G01K13/02 , Y10T29/49826
Abstract: A sensor tube for protecting a sensor inserted into a moving process fluid is provided. The sensor tube includes a process interface section for mounting to a process vessel and an extended section extending from the process interface section to a sealed end. The extended section includes a twisted section having a longitudinal axis. The process interface section and the extended section define a sensor bore configured to receive a sensor therein. The twisted section 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.
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公开(公告)号：EP2188596A2
公开(公告)日：2010-05-26
申请号：EP08830216.1
申请日：2008-09-09
Applicant: Rosemount, Inc.
Inventor： KLEVEN, Lowell, A. , SCHULTE, John, P.
IPC: G01D21/00
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.
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