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14 条记录 (耗时 0.016 秒)

    Mass flowmeter
    1.
    发明授权
    Mass flowmeter 有权
    质量流量计

    公开(公告)号：US06637264B2

    公开(公告)日：2003-10-28

    申请号：US09820851

    申请日：2001-03-30

    申请人： Joost Conrad Lötters ,  Hendrik Jan Boer ,  Wybren Jouwsma

    发明人： Joost Conrad Lötters ,  Hendrik Jan Boer ,  Wybren Jouwsma

    IPC分类号： G01F168

    CPC分类号： G01F1/699 ,  G01F1/6847 ,  G01F1/698

    摘要： Mass flowmeter comprising a hollow conduit of a heat-conducting material for transporting in a determined flow direction a fluid with a mass flow rate to be measured, a first temperature-sensitive resistor element at a first position in thermal contact with this conduit for supplying heat to said fluid, a temperature sensor and measuring and control means connectable to the resistor element and the temperature sensor, wherein the temperature sensor is provided in thermal contact with the conduit at a second position upstream in relation to said first position, and the measuring and control means are adapted to maintain a constant difference in temperature at said first and second positions.

    摘要翻译： 质量流量计包括导热材料的中空管道，用于在确定的流动方向上输送具有要测量的质量流量的流体;第一温度敏感电阻器元件，在与该导管热接触的第一位置处，用于供应热量 所述流体，温度传感器以及可连接到所述电阻元件和所述温度传感器的测量和控制装置，其中所述温度传感器在相对于所述第一位置的上游的第二位置处与所述导管热接触，并且所述测量和 控制装置适于在所述第一和第二位置处保持恒定的温度差。

    Coriolis mass flowmeter
    3.
    发明申请
    Coriolis mass flowmeter 有权
    科里奥利质量流量计

    公开(公告)号：US20080115588A1

    公开(公告)日：2008-05-22

    申请号：US11984253

    申请日：2007-11-15

    申请人： Jan Marinus Zwikker ,  Aditya Mehendale ,  Wybren Jouwsma

    发明人： Jan Marinus Zwikker ,  Aditya Mehendale ,  Wybren Jouwsma

    IPC分类号： G01F1/84

    CPC分类号： G01F1/8486 ,  G01F1/8413 ,  G01F1/8427 ,  G01F1/844 ,  G01F1/8472

    摘要： Coriolis mass flowmeter including a flow tube, at least one tube position sensor provided with a light source and with a light detector for receiving light from the light source, and drive elements for causing the tube to move about an axis, the above being arranged such that the tube or a projection fastened to the tube, for example a vane, moves through a light path between the light source and the light detector, wherein a first screen with a first light-transmitting opening is placed at the side of the light source and a second screen with a second light-transmitting opening is placed at the side of the light detector, wherein the first and the second opening are identical and are correspondingly oriented, and wherein the openings are mutually parallel and aligned so as to form a prismatic light beam on the detector.

    摘要翻译： 科里奥利质量流量计包括流量管，至少一个管位置传感器，其设置有光源，并具有用于接收来自光源的光的光检测器以及用于使管围绕轴移动的驱动元件， 固定在管上的管子或突起，例如叶片，通过光源和光检测器之间的光路移动，其中具有第一透光开口的第一屏幕被放置在光源的一侧 并且具有第二透光开口的第二屏幕被放置在所述光检测器的侧面，其中所述第一和第二开口相同并相应地定向，并且其中所述开口相互平行并对准，以便形成棱镜 光束在探测器上。

    Coriolis mass flowmeter with optical position sensors
    6.
    发明授权
    Coriolis mass flowmeter with optical position sensors 有权
    科里奥利质量流量计带光学位置传感器

    公开(公告)号：US07617740B2

    公开(公告)日：2009-11-17

    申请号：US11984253

    申请日：2007-11-15

    申请人： Jan Marinus Zwikker ,  Aditya Mehendale ,  Wybren Jouwsma

    发明人： Jan Marinus Zwikker ,  Aditya Mehendale ,  Wybren Jouwsma

    IPC分类号： G01F1/84

    CPC分类号： G01F1/8486 ,  G01F1/8413 ,  G01F1/8427 ,  G01F1/844 ,  G01F1/8472

    摘要： Coriolis mass flowmeter comprising a flow tube, at least one tube position sensor provided with a light source and with a light detector for receiving light from the light source, and drive means for causing the tube to move about an axis, the above being arranged such that the tube or a projection fastened to the tube, for example a vane, moves through a light path between the light source and the light detector, wherein a first screen with a first light-transmitting opening is placed at the side of the light source and a second screen with a second light-transmitting opening is placed at the side of the light detector, wherein the first and the second opening are identical and are correspondingly oriented, and wherein the openings are mutually parallel and aligned so as to form a prismatic light beam on the detector.

    摘要翻译： 科里奥利质量流量计包括流量管，至少一个管位置传感器，其设置有光源，并具有用于接收来自光源的光的光检测器，以及用于使管围绕轴线移动的驱动装置， 固定在管上的管子或突起，例如叶片，通过光源和光检测器之间的光路移动，其中具有第一透光开口的第一屏幕被放置在光源的一侧 并且具有第二透光开口的第二屏幕被放置在所述光检测器的侧面，其中所述第一和第二开口相同并相应地定向，并且其中所述开口相互平行并对准，以便形成棱镜 光束在探测器上。

    Coriolis measuring system with at least three sensors
    10.
    发明授权
    Coriolis measuring system with at least three sensors 有权
    科里奥利测量系统至少有三个传感器

    公开(公告)号：US07685888B2

    公开(公告)日：2010-03-30

    申请号：US12205066

    申请日：2008-09-05

    申请人： Wybren Jouwsma ,  Aditya Mehendale

    发明人： Wybren Jouwsma ,  Aditya Mehendale

    IPC分类号： G01F1/84

    CPC分类号： G01F1/8481 ,  G01F1/8413 ,  G01F1/8427 ,  G01F1/8431 ,  G01F1/8436

    摘要： A flow measuring system of the Coriolis type for measuring a mass flow, with a flow tube and with excitation elements for causing the flow tube to rotate about an axis of rotation, with at least three sensors arranged free of the flow tube for generating analog signals that correspond to the movement of the tube, and with elements for digitizing the analog signals and for computing the mass flow from the digitized sensor signals. The computation elements are arranged for using exclusively the time information from the sensor signals. The accurate time information of the sensors is used by algorithms in digital electronic circuits for accurately determining the ratio between amplitudes due to excitation and those due to Coriolis forces. The mass flow is derived from this ratio.

    摘要翻译： 用于测量质量流量的科里奥利流量测量系统，具有流管和用于使流管围绕旋转轴线旋转的激励元件，至少三个传感器布置成没有流管用于产生模拟信号 其对应于管的运动，以及用于将模拟信号数字化并用于从数字化的传感器信号计算质量流的元件。 计算元件被安排为专门用于来自传感器信号的时间信息。 传感器的准确时间信息由数字电子电路中的算法用于精确地确定由激励引起的振幅与科里奥利力之间的比值之间的比率。 质量流量来自该比例。