System and method of remote monitoring of the integrity of pressurised pipes by means of vibroacoustic sources

A system of monitoring a pipe for the transportation of a fluid at a predefined pressure value (P), the system comprising:

• at least one pressure pulses generator device hydraulically connected to the fluid transported by the pipe, wherein each pressure pulses generator device comprises:
• at least one first tank, designed to contain a first predefined quantity of fluid coming from the pipe and designed to maintain the first predefined quantity of fluid at a first pressure value (P1) which is smaller than the predefined pressure value (P) of the fluid transported by the pipe;
• at least one second tank designed to contain a predefined quantity of fluid coming from the pipe and designed to maintain the second predefined quantity of fluid at a second pressure value (P2) which is greater than the predefined pressure value (P) of the fluid transported by the pipe, wherein the first tank and the second tank generate respectively a negative pressure pulse, caused by the passage of fluid from the pipe to the first tank, and a positive pressure pulse, caused by the passage of fluid from the second tank to the pipe;
• and
• at least one pressure transducer, designed to measure the first and second pressure values of the fluid and designed to convert the first and second pressure values into respective recorded acoustic signals (s(t)), and
• at least one measurement station placed along the pipe and provided with one or more vibroacoustic sensors configured to record acoustic signals (sA(t), sB(t)) generated by the at least one pressure pulses generator device.