Leak detection by
Multi Spectral Correlation
Aquarius’ Multi Spectral Correlation automatically calculates correlation at optimal frequency bands.
Benefits
- Highly sensitive
- Accurate leak location – pinpointing leaks
- Intensity estimation
- Leak classification
Aquarius offers the best leak detection technology
| Parameters | Aquarius Spectrum – Correlating Sensors | Noise Loggers |
|---|---|---|
| Technology | Requires time synchronization of all the sensors Requires transmitting the vibration recording for analysis on the server |
Very simple technology |
| High Quality Sample | Automatically records and sends 20 seconds of wave file to the server for analysis. The sound file can be downloaded and listened to. | Requires a few seconds of compressed data – the outcome is mostly one number (the level of noise). |
| Detection Method | Multi Spectral Correlation (Low false positive rate): – 3-15 correlations are needed before alerting. – Capable of detecting small leaks (below background noise). |
Detection by Noise (High false positive rate): – Only one noise sample is needed before alerting. – Capable of detecting only high noises which are above the background noise. |
| Spacing | Large distance between sensors (1,000 ft / 330 m) | Shorter distance between loggers (500 ft /150 m ) |
| Leak Location | Up to 10 ft / 3 m deviation | Provides a wide radius that requires a field team with mobile correlators for pinpointing |
| Installation | Multiple choices: Aboveground and belowground | Only one method |
| Material | No limitation | Does not support PE pipes, limited range with PVC pipes |
| Diameter | No limitation (ACC up to 24” and hydrophones above 24”) | Up to 12” pipes |
| Size of Leak | Good estimation. Supports 0.5 mm leaks | No estimation |
| Integration with Mobile sensors | Seamless integration | No integration |