Description
ENIGMA® SMART, POWERFUL, AND BUILT TO LISTEN WHERE & when IT MATTERS MOST.
The Enigma 3 Hybrid combines the Enigma 3 Standard and Enigma 3 Hydrophone systems into a single package. The system includes three vibration-sensing loggers for external pipe acoustic measurements and three hydrophone-equipped loggers for direct pressure-wave measurements within the water column.
This configuration allows the operator to select either standard vibration sensing or hydrophone sensing depending on pipe material, diameter, and field conditions. Both logger types are operated and processed using the same host software platform. Standard vibration loggers and hydrophone loggers are not intended to be mixed within the same correlation deployment.
A single deployment supports up to three standard correlations when using vibration loggers, or up to three hydrophone correlations when using hydrophone loggers.
MULTI-POINT NETWORK CORRELATION
After retrieval, the recorded leak sound data is transferred to the host software for correlation analysis. The software processes the acoustic data from each logger pair to calculate and display leak locations between all deployed loggers. Pipe sections, logger positions, and calculated leak locations are displayed graphically to provide a visual representation of the survey area and correlation results.
SEPARATING GENUINE WATER USAGE
Each logger records during three sample periods, typically spaced one hour apart. A characteristic of leak noise is that it is always constant and so if the correlation peak is not present during all three samples then it is due to water use and not leakage.
OPTIMUM LEAK SENSING
Overnight use provides ideal conditions for leak detection. This is because background acoustic noise from traffic, water usage and other sources, is lowest and, at the same time, water system pressure can be higher which greatly aids leak sound propagation.
