Patent ID: 7040181
Filing Date: 2006-05-09
Classification: G01F,G01N

Abstract:
1. A coriolis mass flow measuring device, especially a Coriolis mass flow rate/density measuring device, or a Coriolis mass flow rate/viscosity measuring device, for measuring the mass flow rate of a medium flowing in a pipeline, especially a medium of two or more phases, which Coriolis mass flow measuring device comprises: a vibratory transducer and measuring device electronics electrically coupled to said vibratory transducer, wherein said vibratory transducer has: at least one measuring tube to be interposed in the pipeline, especially an essentially straight measuring tube, for guiding the medium to be measured, in communication with the connected pipeline, an exciter arrangement acting on said at least one measuring tube for causing said at least one measuring tube to vibrate with lateral oscillations, especially bending oscillations, at least at times, and/or at least in part, during operation, and a sensor arrangement for registering vibrations of said at least one measuring tube, which delivers at least one, first oscillation measurement signal (s said measuring device electronics delivers, at least at times, an exciter current (i