Global Patent Index - EP 1097355 A1

EP 1097355 A1 2001-05-09 - MULTICHORD ULTRASONIC FLOWMETER

Title (en)

MULTICHORD ULTRASONIC FLOWMETER

Title (de)

ULTRASCHALLDURCHFLUSSMESSER MIT EINER MEHRZAHL VON PFADEN

Title (fr)

DEBITMETRE A ULTRASONS MULTICORDE

Publication

EP 1097355 A1 (FR)

Application

EP 99929413 A

Priority

  • FR 9901628 W
  • FR 9808893 A

Abstract (en)

[origin: FR2781047A1] The invention concerns an ultrasonic measuring device for reducing errors in measurements and the number of transducers, comprising at least three transducers (31, 32, 33) forming at least two sets (31; 32, 33) each including at least one transducer, the sets are mutually offset in the direction of the fluid flow main axis. The invention is characterised in that the radiation diagram of at least one transducer (31) of at least one of the sets covers at least two transducers (32, 33) of the other set. The invention enables to reduce the number of transducers while improving the quality of the measurement. The invention is useful for measuring flow rates and speeds.

IPC 1-7 (main, further and additional classification)

G01F 1/66

IPC 8 full level (invention and additional information)

G01F 1/66 (2006.01)

CPC (invention and additional information)

G01F 1/662 (2013.01); G01F 1/667 (2013.01)

Citation (search report)

See references of WO 0003206A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

FR 2781047 A1 20000114; FR 2781047 B1 20000901; EP 1097355 A1 20010509; JP 2002520583 A 20020709; NO 20010139 A 20010131; NO 20010139 D0 20010109; RU 2226263 C2 20040327; WO 0003206 A1 20000120

INPADOC legal status


2003-10-29 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030425

2002-08-14 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020628

2002-07-10 [RTI1] TITLE (CORRECTION)

- Free text: MULTIPATH ULTRASONIC FLOWMETER

2001-05-09 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010212

2001-05-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE