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    • 2. 发明公开
    • IMPROVED ELECTROMAGNETIC BOAT SPEEDOMETER HAVING REMOVABLE ELECTRODES
    • 随着对艇可拆卸PADS改进的电磁车速传感器
    • EP3139177A1
    • 2017-03-08
    • EP16192922.9
    • 2013-07-31
    • Brickhouse Innovations, LLC
    • MARSCH, Lawrence, B.
    • G01P5/08G01F1/58
    • G01P5/08G01F1/588G01F25/0007G01P5/083G01P5/086
    • The invention relates to:
      An electromagnetic speedometer for a boat, comprising:
      (a) a horizontal boat hull (4) having a lower exterior surface exposed to the water, and an upper interior surface;
      (b) an annular coil (504) mounted on said boat hull upper interior surface for establishing an electromagnetic field in the water adjacent said hull lower surface;
      (c) a plurality of electrodes (514) having tips at one end;
      (d) a plurality of generally vertical guide tubes (507) containing guide passages for removably supporting said electrodes within corresponding through openings (4a) contained in said hull concentrically within and separate from said annular coil, thereby to effect engagement of the electrode tips with the water adjacent said electromagnetic field, and to permit removal of the electrodes and cleaning of the electrode tips when the boat is in the water;
      (e) a velocity measuring circuit arranged above said hull interior surface, said velocity measuring circuit means including a plurality of conductors respectively connected with the other ends of said electrodes; and
      (f) closure means (512) for closing said guide passages upon removal of said electrodes therefrom.
    • 本发明涉及:用于船的电磁速度计,包括:(A)的水平船体(4),其具有暴露于水的下外表面,并且在上内表面; 环形设计线圈的(B)(504)安装在所述船体上的内表面在水邻近所述船体下表面上的电磁场的建立; 在一端具有尖端(C)的电极的多个(514); (D)基因反弹垂直导向管的多个(507)包含导向通道用于可拆卸地支承内通过同心地内并包含在所述船体的开口(4a)的相应的所述电极从所述环形设计线圈分开,从而实现电极尖端的接合 水邻近所述电磁场,并且允许去除电极和清洁电极尖端的当船在水中; (E)以上所述船体的内表面设置有速度测量电路,所述速度测量电路装置,其包括分别与所述电极的另一端连接的导线的多个; 和(f)的封闭装置(512),用于从在去除所述电极的关闭所述导向通路那里。
    • 5. 发明公开
    • VERFAHREN UND ANORDNUNG ZUR KONTAKTLOSEN BESTIMMUNG VON GESCHWINDIGKEITSVERTEILUNGEN EINES FLÜSSIGEN METALLS IN EINER STRANGGIESSKOKILLE
    • 飞车接触地确定的方法和系统分布的液态金属连铸
    • EP2379991A2
    • 2011-10-26
    • EP09810746.9
    • 2009-12-21
    • Helmholtz-Zentrum Dresden - Rossendorf e.V.
    • STEFANI, FrankWONDRAK, ThomasGUNDRUM, ThomasTIMMEL, KlausGERBETH, Gunter
    • G01F1/58G01P5/00
    • G01P5/086B22D11/186C22C28/00
    • The present invention is used for the non-contact determination of velocity distributions of a liquid metal in a continuous casting die. A preferred field of application of the device is the velocity determination in the continuous casting of steel and aluminum, in particular during slab casting. The determination is carried out in that a primary magnetic field penetrates the liquid metal volume in the die, the magnetic fields induced by the movement of the fluid is measured, and based thereon the velocity is calculated by solving an inverse problem. The calculation employs the principle of least squares, wherein the mean square deviations of the magnetic fields induced by the assumed velocity from the measured values is used as the functional to be minimized. In the process, the Tikhonov regularization is used, wherein the mean square curvature of the velocity field or the mean square velocity is used as the regularization functional. Furthermore, the divergence freedom of the velocity field is ensured by utilizing an additional functional. The array comprises a coil system generating a magnetic field, a measuring and control unit for the fluxes in said coil system, by which the direction of the magnetic field in the fluid can be changed, a plurality of magnetic field sensors in the outer region of the fluid for determining the magnetic fields induced by the movement of the fluid, and means for signal forwarding, processing and representation.
    • 本发明是用于在连续铸造的所述液态金属的速度分布的非接触确定。 所述装置的应用的一个优选字段是板坯铸造过程中速度确定在钢和铝的连铸中,尤其如此。 该确定是在做了初级磁场穿透模具中的液体金属体积中进行,通过流体的运动感应的磁场被测量,并且基于其的速度由解决问题的逆计算。 计算采用最小二乘法,通过worin从测量值的假定速度感应的磁场的均方偏差用作功能性被最小化的原则。 在该过程中,Tikhonov正则化被使用,worin速度场或均方速度的均方曲率被用作正则化功能。 进一步,在速度场的发散自由通过附加的功能的利用保证。 所述阵列包括线圈系统产生磁场,用于在所述线圈系统中的磁通,由此在流体中的磁场的方向是可以改变的测量和控制单元,磁场传感器中的外区域中的多个 流体确定性采矿通过流体的运动引起的magneticfields装置,以及用于信号转发,处理和表示。