公开(公告)号：EP2028455A3

公开(公告)日：2012-01-04

申请号：EP08012769.9

申请日：2008-07-15

申请人： ROSEMOUNT AEROSPACE INC.

发明人： Spivak, Alexander ,  Eriksen, Odd Harald Steen ,  Goldenberg, Felix ,  Grichener, Alexander ,  Sanden, Christopher ,  McTighe, Joe ,  Lin, Chuang-Chia

IPC分类号： G01F1/28 ,  G01F1/78

CPC分类号： G01F1/28 ,  G01F1/78

摘要： A force balanced mass flow meter is disclosed that includes a cylindrical sensor housing having an interior bore, an impeller body supported for axial rotation within the interior bore of the sensor housing , and including structure for converting fluid inertia into flow induced torque when fluid flows relative to the impeller body, a proximity sensor for measuring a rotation angle of the impeller body relative to the sensor housing, an electromagnet for generating a magnetic field about the sensor housing to prevent rotation of the impeller body, electronics for determining electrical values from the proximity sensor when fluid flows relative to the impeller body and a controller for controlling current supplied to the electromagnet in response to electrical values determined from the proximity sensor, to generate a magnetic field sufficient to prevent impeller rotation.

公开(公告)号：EP2028455A2

公开(公告)日：2009-02-25

申请号：EP08012769.9

申请日：2008-07-15

申请人： ROSEMOUNT AEROSPACE INC.

发明人： Spivak, Alexander ,  Eriksen, Odd Harald Steen ,  Goldenberg, Felix ,  Grichener, Alexander ,  Sanden, Christopher ,  McTighe, Joe ,  Lin, Chuang-Chia

IPC分类号： G01F1/28 ,  G01F1/78

CPC分类号： G01F1/28 ,  G01F1/78

摘要： A force balanced mass flow meter is disclosed that includes a cylindrical sensor housing having an interior bore, an impeller body supported for axial rotation within the interior bore of the sensor housing , and including structure for converting fluid inertia into flow induced torque when fluid flows relative to the impeller body, a proximity sensor for measuring a rotation angle of the impeller body relative to the sensor housing, an electromagnet for generating a magnetic field about the sensor housing to prevent rotation of the impeller body, electronics for determining electrical values from the proximity sensor when fluid flows relative to the impeller body and a controller for controlling current supplied to the electromagnet in response to electrical values determined from the proximity sensor, to generate a magnetic field sufficient to prevent impeller rotation.

摘要翻译： 公开了一种力平衡质量流量计，其包括具有内孔的圆柱形传感器壳体，被支撑用于在传感器壳体的内孔内轴向旋转的叶轮体，并且包括当流体相对流动时将流体惯性转换为流动感应扭矩的结构 到叶轮本体，用于测量叶轮本体相对于传感器壳体的旋转角度的接近传感器，用于在传感器壳体周围产生磁场以防止叶轮本体旋转的电磁体，用于确定来自接近的电气值的电子装置 当流体相对于叶轮本体流动时，传感器和控制器，用于响应于从接近传感器确定的电值来控制供应给电磁体的电流，以产生足以防止叶轮旋转的磁场。