EP 1697699 A2 20060906 - DEVICE FOR DETERMINING AND/OR MONITORING THE VOLUME FLOW RATE AND/OR MASS FLOW RATE OF A MEDIUM TO BE MEASURED
Title (en)
DEVICE FOR DETERMINING AND/OR MONITORING THE VOLUME FLOW RATE AND/OR MASS FLOW RATE OF A MEDIUM TO BE MEASURED
Title (de)
VORRICHTUNG ZUR BESTIMMUNG UND/ODER BERWACHUNG DES VOLUMEN- UND/ODER MASSENDURCHFLUSSES EINES MESSMEDIUMS
Title (fr)
DISPOSITIF POUR DETERMINER ET/OU SURVEILLER LE DEBIT VOLUMIQUE ET/OU MASSIQUE D'UNE SUBSTANCE A MESURER
Publication
Application
Priority
- EP 2004053515 W 20041215
- DE 10361464 A 20031223
Abstract (en)
[origin: WO2005064284A2] 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).
IPC 8 full level
G01F 1/66 (2006.01)
CPC (source: EP US)
G01F 1/66 (2013.01 - US); G01F 1/662 (2013.01 - EP)
Citation (search report)
See references of WO 2005064284A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005064284 A2 20050714; WO 2005064284 A3 20051103; WO 2005064284 A9 20050825; DE 10361464 A1 20050728; EP 1697699 A2 20060906; US 2008059085 A1 20080306; US 7426443 B2 20080916
DOCDB simple family (application)
EP 2004053515 W 20041215; DE 10361464 A 20031223; EP 04804864 A 20041215; US 58414904 A 20041215