How does the system recognize accidental ruptures that occurred with the normal opening of valves?
Please refer to the above answer. The ALDS is capable of detecting multiple leaks. As long as the leaks are more than about half to 1 second apart, they will always be detected. • The success of the system is dependent on the sensitivity of the sensors which in turn depends on a multitude of parameters such as pipe diameter, fluid characteristics, distance between sensors, distance from the line break etc. etc. Also the signal being detected appears to be just above background noise. Is the system really robust or does it require continuous tuning and maintenance? No, one of the unique features of this ALDS is its minimum maintenance requirements. Since it only uses the dynamic acoustic signals, it does NOT even require any accurate absolute measurements. That is, there is no periodic re-calibration of instrument required. The system will report any leak without any operator or engineer interpretation of the data or verification of the leak.
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