公开(公告)号：US10697813B2

公开(公告)日：2020-06-30

申请号：US16346629

申请日：2017-10-27

申请人： PROMECON process measurement control GmbH

发明人： Hans Georg Conrads ,  Christian Dippner, I ,  Theodoros Tsifotidis

IPC分类号： G01F1/66 ,  G01F1/74 ,  G01N22/00 ,  G01F1/50

摘要： Microwave measuring arrangement for determining loading two-phase flow with gaseous carrier medium in tube of channel system (1) with small solid and/or liquid particles. Microwaves with frequencies between 0.95 and 1.05 times the frequency of waveguide fundamental wave, are coupled into an electrically conductive section of the tube/channel system (1), section being delimited by filed rods (4,4′) and acting as resonator, the shift in the resonant frequency of the resonator on account of loading of the medium with solid and/or liquid particles is determined. To suppress interference (reflected, diffracted and/or superimposed) in the tube/or channel system (1), two auxiliary field rods (6, 7 and 6′, 7′) assigned to each filed rod (4,4′) are provided, Auxiliary filed rods (6, 7 and 6′, 7) are arranged at an angle α with respect to the field rod (4, 4′) of α=+45°±10 and/or α=−45°±10° and/or α=+135°±10° and/or α=−135°±.