Correlation Leak Detection is a technique to find leaks in
pressurised water pipes with pinpoint accuracy. A leaking
pipe creates a sound which travels along the pipe wall
material.
A Leak Noise Correlator works by attaching two sensors on
the pipe.
The sensors emit and record a sound via radio to a separate
processing unit. The correlator then calculates the
location of
the leak using a mathematical algorythm.
The calculation is composed of:
- Signal Delay
- Sensor Distance
- Sound Velocity
The calculation tells the operative how far along the pipe the
leak
is from each sensor.
