Device for contactless measurement procedure of the mass flow rate in the conveying lines in the case of two-phase flows by means of microwaves.

摘要

problem $a, the invention relates to a device for the rohrquerschnitt mittelnden coverage of the attenuation of microwave in the transported good. it is through the measurement of the attenuation and the duration between two sensors of the mass throughput through the pipe to be determined.the turbulence caused by strong fluctuation of loading on the rohrquerschnitt is a linienintegrierende measurement between two opposite points on the surface of the tube to be inaccurate for many applications as a representative meu00dfort on the surface can be found.$a $a, the device is used to change the cross-section of mittelnden measurement of mass and the massedurchsatzes. this is a rohrstu00fcck transmit and empfangsschlitzantenne.it will be in the rohrwandung introduced microwave slots azimutal evenly from a cavity, removed, so an optimal averaging of the rohrquerschnitt different beladungsdichten is obtained. another schlitzmuster takes the tube, the medium low microwave again.$a $a kohlenstaubleitungen indications indications in which the fuel is transported by means of tragluft and pneumatic compensation in which solids with some residual moisture or an increased specific attenuation compared with microwave by compressed air or a carrier gas are transported. similarly,...