公开(公告)号：US20070044570A1

公开(公告)日：2007-03-01

申请号：US11213576

申请日：2005-08-26

Applicant: Helmut Brockhaus ,  Boudewijn Poortmann ,  Wilhelm Florin ,  Arnould Willigen

Inventor： Helmut Brockhaus ,  Boudewijn Poortmann ,  Wilhelm Florin ,  Arnould Willigen

IPC: G01F1/58

CPC classification number: G01F1/586 ,  G01F25/0007

Abstract: A magnetoinductive flowmeter and a method for operating same utilizing a measuring tube through which flows an electrically conductive medium, as well as two measuring electrodes and a magnet with two field coils positioned parallel to each other on mutually opposite sides of the measuring tube. The measuring electrodes are so positioned that their connecting line extends along an essentially perpendicular vector relative to the direction of flow and to the magnetic field as well as through the cross-sectional center of the measuring tube. For normal flow-measuring operation, the two field coils are so energized that an essentially homogeneous magnetic field is generated, permeating the medium flowing through the measuring tube, while for determining the flow rate the voltage present between the two measuring electrodes is collected at one or both measuring electrodes and measured against a reference potential. The normal flow-measuring operation is intermittently interrupted and the two field coils are energized in a manner as to generate an inhomogeneous magnetic field that permeates the medium flowing through the measuring tube, and the voltage present between the two measuring electrodes is collected. This permits a diagnosis of the flowmeter.

Abstract translation: 一种磁感应流量计和一种使用测量管进行操作的方法，测量管通过该测量管使导电介质以及两个测量电极和具有两个场线圈的磁体在测量管的相互相对的两侧彼此平行地定位。 测量电极被定位成使得它们的连接线沿着相对于流动方向和磁场以及通过测量管的横截面中心的基本上垂直的矢量延伸。 对于正常的流量测量操作，两个励磁线圈被通电，使得产生基本均匀的磁场，渗透流过测量管的介质，同时为了确定流量，在两个测量电极之间存在的电压被收集在一个 或两个测量电极并相对于参考电位测量。 正常的流量测量操作被间歇地中断，并且以产生渗透通过测量管的介质的不均匀磁场的方式激励两个励磁线圈，并且收集在两个测量电极之间存在的电压。 这允许诊断流量计。

公开(公告)号：US20050229714A1

公开(公告)日：2005-10-20

申请号：US11105070

申请日：2005-04-13

Applicant: Arnould Willigen

Inventor： Arnould Willigen

IPC: G01F1/00 ,  G01F1/58 ,  G01F1/60 ,  G01F15/02 ,  G01V3/00

CPC classification number: G01F1/60

Abstract: A magnetoinductive flow measuring method serves to measure the flow rate of a medium traveling through a measuring tube, while with the aid of at least one field coil a magnetic field is generated with a magnetic field component that extends in a direction perpendicular to the axis of the measuring tube. The electrical resistance of the field coil is measured and the temperature of the field coil, constituting a first temperature, is calculated based on the measured resistance of the field coil. A temperature measurement, constituting the second temperature, is taken at a location other than that of the field coil and the temperature of the flowing medium is calculated on the basis of the first and second temperatures. This provides the user of the flow measuring method an added benefit in that it gives the possibility, in simple fashion, to determine the temperature of the flowing medium. A flowmeter for measuring flow according to the method is also disclosed.

Abstract translation: 磁感应流量测量方法用于测量通过测量管行进的介质的流速，借助于至少一个励磁线圈，产生磁场，磁场分量沿垂直于轴线的方向延伸的磁场分量 测量管。 测量励磁线圈的电阻，并且基于所测量的励磁线圈的电阻来计算构成第一温度的励磁线圈的温度。 构成第二温度的温度测量在不同于场线圈的位置处进行，并且基于第一和第二温度计算流动介质的温度。 这为流量测量方法的用户提供了附加的益处，因为它以简单的方式提供了确定流动介质的温度的可能性。 还公开了一种用于根据该方法测量流量的流量计。