MULTIVARIABLE PROCESS FLUID FLOW DEVICE WITH ENERGY FLOW CALCULATION
    3.
    发明公开
    MULTIVARIABLE PROCESS FLUID FLOW DEVICE WITH ENERGY FLOW CALCULATION 审中-公开
    与能量流计算多变量型工艺流程设备

    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

    申请人: Rosemount, Inc.

    IPC分类号: G01F1/34 G01N33/22 G05B19/00

    摘要: 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.

    ICE DETECTOR CIRCUIT
    4.
    发明公开
    ICE DETECTOR CIRCUIT 失效
    冰探测器电路

    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

    申请人: ROSEMOUNT INC.

    IPC分类号: G01W1 G08B19

    CPC分类号: G08B19/02 B64D15/20

    摘要: 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.

    摘要翻译: 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。

    TWISTED SENSOR TUBE
    6.
    发明公开
    TWISTED SENSOR TUBE 审中-公开
    扭转管SENSOR

    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

    申请人: Rosemount Inc.

    IPC分类号: G01K1/08 G01K13/02

    摘要: 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.

    HIGH PERFORMANCE ARCHITECTURE FOR PROCESS TRANSMITTERS
    7.
    发明公开
    HIGH PERFORMANCE ARCHITECTURE FOR PROCESS TRANSMITTERS 有权
    高性能架构,用于过程变送器

    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

    申请人: Rosemount, Inc.

    IPC分类号: G01D21/00

    CPC分类号: G01D21/00

    摘要: 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.