Patent ID: 8336394

Claim:
A device ( 10 ) for measuring the flow rate of a fluid flowing in a pipe, especially for a transaction between a hydrocarbon supplier and a purchaser, comprising: a substantially cylindrical main body ( 11 ) to be interposed between two sections of said pipe, ultrasound-beam transducers ( 15 ) mounted on the main body ( 11 ) and intended to measure at least a speed of displacement of the fluid when the fluid passes through said device ( 10 ), and at least one converter intended to transform the signals emitted by the transducers into a flow rate signal, characterized in that the transducers ( 15 ) are mounted and distributed in a regular manner around first and second coaxial parallel rings ( 12 , 13 ), the transducers ( 15 ) of the first ring ( 12 ) being offset angularly with respect to the transducers of the second ring ( 13 ).