Patent ID: 6212975
Filing Date: 2001-04-10
Classification: G01F

Abstract:
A digital signal processing system for processing a flowmeter signal from a vortex flowmeter, said system comprisinga decimator for downsampling said flowmeter signal, said decimator having a first decimator output corresponding to said flowmeter signal downsampled to a first sampling frequency and a second decimator output corresponding to said flowmeter signal downsampled to a second sampling frequency,an on-line channel configured to monitor said first decimator output and to filter said first decimator output with an adaptive bandpass filter having a passband responsive to said first decimator output, thereby generating a first component of said flowmeter signal, andan off-line channel configured to filter said second decimator output with a-filter having a dynamically selectable passband, thereby generating a second component of said flowmeter signal.