Patent ID: 7729885
Filing Date: 2010-06-01
Classification: G01F

Abstract:
1. A Coriolis type flow measuring system for measuring the mass flow of a flowing medium, comprising: a flow tube; drive means for causing the flow tube to oscillate about an axis of rotation; sensors associated with the flow tube for generating analog signals in positions in accordance with the movement of the tube; analog to digital conversion (ADC) means for converting the analog signals into digitized signals by means of a sampling process, and means for calculating a measuring signal from the digitized signals, which measuring signal is representative of the mass flow; means for enabling in the sampling process the sampling of each sensor signal to take place at different frequencies; flow rate change determining means for determining the rate at which the flow rate changes; and selection means for selecting in the sampling process a predefined low sampling frequency in case a low rate of change of the flow rate is determined by the flow rate change determining means and for selecting a predefined high sampling rate in case a high rate of change of the flow rate is determined.