公开(公告)号：US20090064797A1

公开(公告)日：2009-03-12

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 means 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 means for digitizing the analog signals and for computing the mass flow from the digitized sensor signals. The computation means 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装置，其中至少三个传感器布置成没有流管用于产生模拟信号 这对应于管的移动，并且具有用于数字化模拟信号和用于从数字化的传感器信号计算质量流的装置。 计算装置被布置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。