Patent ID: 8573026
Filing Date: 2013-11-05
Classification: G01F

Abstract:
1. A sound entrainment method for ascertaining volume- or mass-flow of a medium in a pipeline, or measuring tube, of radius (r) comprising the steps of: transmitting and/or receiving ultrasonic measuring signals along a plurality of defined sound paths (m); establishing, during a calibration phase, successive, different flow profiles (v(r)) of a measured medium in the pipeline, or in the measuring tube; ascertaining for each flow profile (v(r)), a defined volume flow, or a defined mass flow; describing, on the basis of measured values (v calculating, for each flow profile (V(r)), on the basis of the defined volume- or mass-flow and on the basis of the measured volume- or mass-flow, a flow-profile-dependent correction factor MF(a correcting, subsequently in measurement operation, a volume- or mass-flow ascertained via the parameter set (a during the calibration phase, the velocities v