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    PROCEDE ET DISPOSITIF POUR DETECTER AU SOL L'OBSTRUCTION D'UNE PRISE DE PRESSION D'UN CAPTEUR DE PRESSION STATIQUE D'UN AERONEF
    54.
    发明授权
    PROCEDE ET DISPOSITIF POUR DETECTER AU SOL L'OBSTRUCTION D'UNE PRISE DE PRESSION D'UN CAPTEUR DE PRESSION STATIQUE D'UN AERONEF 有权
    的方法和设备，用于确定静压传感器的飞行器DRUCKABGRIFFS对接地阻挡

    公开(公告)号：EP1848976B1

    公开(公告)日：2012-05-02

    申请号：EP06709220.5

    申请日：2006-02-02

    申请人： AIRBUS OPERATIONS (SAS)

    发明人： FONTOVA, Laurent ,  FREISSINET, Sébastien

    IPC分类号： G01L27/00 ,  G01D3/08 ,  G05B9/03 ,  G05D1/00

    CPC分类号： G01L27/007 ,  G01P5/14 ,  G01P13/0006 ,  G05B9/02

    摘要： The invention relates to a method and device for detecting, on the ground, the obstruction of a pressure tap of a static pressure sensor of an aircraft. The device (1) comprises a pressure sensor (2) provided for measuring the pressure inside a probe (4), which has a heating system (9) for heating the probe (4) and which, when the heating system (9) is activated, carries out a first measurement of at least one parameter dependent on the pressure inside the probe (4), and a predetermined duration after the activation of the heating system (9), carries out a second measurement of said parameter. The inventive device also comprises at least one central processing unit (11) for calculating the difference between the first and second measurements and for comparing this difference to a predetermined value, and comprises warning means (13) for emitting a warning signal indicating the detection of an obstruction if the difference is greater than said predetermined value.

    VERFAHREN ZUR DIAGNOSE EINER VERSTOPFUNG EINER IMPULSLEITUNG BEI EINEM DRUCKMESSUMFORMER SOWIE DRUCKMESSUMFORMER
    55.
    发明授权
    VERFAHREN ZUR DIAGNOSE EINER VERSTOPFUNG EINER IMPULSLEITUNG BEI EINEM DRUCKMESSUMFORMER SOWIE DRUCKMESSUMFORMER 有权
    于诊断梗阻脉冲线的制备方法在压力变送器和压力变送器

    公开(公告)号：EP2044406B1

    公开(公告)日：2011-11-30

    申请号：EP06818241.9

    申请日：2006-07-20

    申请人： SIEMENS AKTIENGESELLSCHAFT

    发明人： PAULITSCH, Christoph

    IPC分类号： G01L13/00 ,  G01L15/00 ,  G01L27/00

    CPC分类号： G01L27/007 ,  G01F1/36

    摘要： A method for the detection or diagnosis of a blockage of an impulse line in a pressure measurement transducer (14), and a corresponding pressure measurement transducer (14), are disclosed, in which at least one characteristic value (32) is compared with at least one reference value (34) for the analysis of at least one measurement signal (24, 26) and, depending on the result of the comparison, an action (40) is triggered, wherein the, or every, characteristic value (32) is produced, with the aid of at least single parameters (52) of a model (48) describing the transmission behavior of impulse lines (18, 20) with which the pressure measurement transducer (14) is coupled to a line (12) traversed by a fluid (10).

    THERMAL-BASED DIAGNOSTIC SYSTEM FOR PROCESS TRANSMITTER
    56.
    发明公开
    THERMAL-BASED DIAGNOSTIC SYSTEM FOR PROCESS TRANSMITTER 审中-公开
    诊断系统的热基础过程传送器

    公开(公告)号：EP2344935A2

    公开(公告)日：2011-07-20

    申请号：EP09819536.5

    申请日：2009-09-29

    申请人： Rosemount, Inc.

    发明人： HEDTKE, Robert, C. ,  WILLCOX, Charles, R. ,  BRODEN, David, A. ,  KLOSINSKI, Andrew, Juri ,  SCHULTE, John, P.

    IPC分类号： G05B19/042 ,  G05B19/418

    CPC分类号： G01L27/005 ,  G01L27/007 ,  Y02P80/114

    摘要： 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.

    INDICATOR ARRANGEMENT
    59.
    发明公开
    INDICATOR ARRANGEMENT 有权
    INDIKATORENANORDNUNG

    公开(公告)号：EP2150793A2

    公开(公告)日：2010-02-10

    申请号：EP08761661.1

    申请日：2008-05-13

    申请人： Wärtsilä Finland Oy

    发明人： SAIKKONEN, Ari ,  LAAKSO, Perri ,  KALLIO, Markku ,  SALOJÄRVI, Antero

    IPC分类号： G01L23/22 ,  G01L27/00

    CPC分类号： G01L23/225 ,  G01L27/007 ,  G01R31/2829

    摘要： An indicator arrangement according to the invention also comprises a resistor (4) the first end of which is connected to between a passive acceleration sensor (1) and a filtering means (2) and the other end is connected to a basic voltage level. An output (5) is also connected to the connection of the first end of the resistor. The indicator arrangement also comprises a direct voltage source (3) the first end of which is connected to a passive acceleration sensor (1) while the other end is connected to a basic voltage level. Voltage can be detected from the output (5) of the indicator arrangement for detecting a fault in the indicator arrangement.