Abstract: The invention concerns a method for measuring the displacement of a fluid in a conduit, by measuring the transit time of ultrasounds between two transducers (12, 13), in one direction and in the other, characterised in that it consists in: simultaneously exciting (16) both transducers; then simultaneously measuring (17, 18) the signals received on each of the transducers coming from the other transducer. The measured signals can then be digitised and correlated to determine the difference between the transit times. The invention enables to obtain faster and more reliable, measurement of transit times between transducers.
Abstract: An apparatus for measuring the flow rate of a fluid with the use of a measurement transducer. A memory containing the measurement characteristics of the transducer as arranged in close proximity to the transducer. A dialogue module is provided in an electronic computer assembly. The dialogue module is capable of initially reading the data of the transducer memory in order to transfer the data to a memory of the electronic assembly. Thereafter the transducer memory is isolated and processing of the measurement signals from the transducer is effected by means of the transducer characteristics transferred to the memory of the electronic assembly.