公开(公告)号：EP3486642A1

公开(公告)日：2019-05-22

申请号：EP18203825.7

申请日：2018-10-31

申请人： Technologies Holdings Corporation

发明人： HANES JR., Robert E. ,  PETTYS JR., Richard L. ,  NICHOLS, Daniel T. ,  VOIGT, Richard B. ,  HENRY, Joel R. ,  MONTIFAR, Roma M. ,  HEADLEY, David M. ,  REYNOLDS, Dustin R.

IPC分类号： G01N27/08 ,  A01J5/01 ,  G01F25/00 ,  G01F1/64 ,  G01F1/708

摘要： An apparatus includes a tube, first and second pairs of electrodes, a reference device, and a processor. The processor determines a speed of a fluid traveling between the first and second pairs of electrodes and determines a reference conductance of the fluid using the reference device. The processor also determines a measured conductance of the fluid using at least one of the first and second pairs of electrodes and determines, based on the reference conductance and the measured conductance, a cross-sectional area of the fluid at an electrode. The processor further adds a correction factor to the determined speed to produce a bulk speed of the fluid. The processor further determines a volumetric flow rate of the fluid based on the bulk speed and the determined area and determines a volume of the fluid based on the determined volumetric flow rate.