Enigma®-hyQ is
a variant of the standard Enigma multi-point
correlation logger that has been further optimized
for leak location in large diameter pipes and
over longer distances. A high sensitivity hydrophone
is used (directly detects the pressure wave
in the water) coupled with the application
of narrow band filtering.
System features:
High sensitivity hydrophone
Narrow band filtering
technique
Very low electronic 'noise
floor'
Records acoustic data
at night
Multiple recording 'epochs'
Leak on 800mm diameter iron main over 267 metres (London,
UK)
