Title:
DEVICE FOR DETERMINING AND/OR MONITORING THE VOLUME FLOW RATE AND/OR MASS FLOW RATE OF A MEDIUM TO BE MEASURED
Document Type and Number:
WIPO Patent Application WO2005064284
Kind Code:
A9
Abstract:
The invention relates to an ultrasonic flow meter (1) which is characterized in that it uses a low amount of power. According to the invention, a control/evaluation unit (11) determines several sampled values ([coded mathematical formula], wherein i = 1, 2, 3, ...) of a received test signal at defined points in time (t) within a given interval and interpolates the sampled values by means of a constant function (f(t)), said constant function (f(t)) being formed by the sum of a given number (n [encoded mathematical formula] N) of wavelets (W). Each wavelet (W) corresponds to the product of a sampled value and a fractional function ([coded mathematical formula]) with a Gaussian curve ([coded mathematical formula], [coded mathematical formula] [coded mathematical formula] R).
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Inventors:
SIMON ANTOINE (FR)
Application Number:
PCT/EP2004/053515
Publication Date:
August 25, 2005
Filing Date:
December 15, 2004
Export Citation:
Assignee:
FLOWTEC AG (CH)
SIMON ANTOINE (FR)
SIMON ANTOINE (FR)
International Classes:
G01F1/66; (IPC1-7): G01F/
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