Centre National De La Recherche Scientifique

Universite Claude Bernard – Lyon1

Institut National Des Sciences Appliquees De Lyon

Ecole Centrale De Lyon

Efs Sa

Philippe Blanc-Benon

Pascal Gucher

Sébastien Ollivier

Julian Robin

Alexandre Huchon

An apparatus for ultrasonically measuring the flow rate of a fluid in a measuring channel including fluid supply passages at its ends, this measuring channel forming a waveguide made into a solid body, comprising at each end a transducer capable of emitting or receiving ultrasounds circulating in the axis of the channel, where each transducer includes a shell transmitting the ultrasounds, comprising a waveguide facing the measuring channel, and outside this waveguide shapes orientating the ultrasounds in directions different from that of the channel.

Apparatus for ultrasonically measuring the flow rate of a fluid in a measuring channel, achieving an attenuation of the parasitic signals

A control method for an apparatus for ultrasonically measuring the flow rate of a fluid in a measuring channel, including a measuring channel whose one end is equipped with a first transducer and the other end is equipped with a second transducer, each transducer emitting ultrasonic waves to the other transducer, and receiving waves generated by the other transducer, where, in a first step, the first transducer emits waves to the second transducer, and in a second step, which can be simultaneous with the first one, the second transducer emits waves prior to the reception of the waves emitted by the first transducer.

Method for controlling an apparatus for ultrasonically measuring the flow rate of a fluid in a measuring channel

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Lyons, France

Philippe Blanc-Benon