Automated system for continuous monitoring of seepage flow rates using high-precision vibrating wire technology.
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Automated system for continuous monitoring of seepage flow rates using high-precision vibrating wire technology.
The Geolook G90-V500 VW Seepage Monitoring System is the automated evolution of the manual weir. It is designed to provide high-frequency, real-time data on water leakage in dams, tunnels, and deep excavations. The system typically consists of a V-notch weir plate and a specialized Vibrating Wire (VW) pressure transducer mounted in a stilling well. As the water level behind the weir changes, the transducer measures the exact hydrostatic head with millimeter precision. This data is then automatically converted into flow rate (liters per second or gallons per minute) by a data logger, allowing for immediate detection of structural anomalies.
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In a manual system, an operator must physically visit the weir and read a staff gauge. This is often done weekly or monthly. The G90-V500 replaces the human eye with a VW pressure sensor located in a 'Stilling Well'—a vertical pipe that protects the sensor from surface ripples and debris.
The sensor tracks the water height 24/7. Because the relationship between height and flow for a V-notch is mathematically fixed, a data logger can provide a live feed of the seepage rate, which is much more effective for identifying seasonal trends or sudden structural shifts.
Seepage is one of the most critical health indicators for a dam. While some seepage is normal, a sudden 'spike' in flow can indicate the start of internal erosion (piping).
By integrating the G90-V500 with a Geolook GL-DL series data logger, alarm thresholds can be set. If the seepage exceeds a safety limit, the system can automatically trigger an SMS or email alert, providing engineers with critical time to inspect the structure and mitigate risks.
Because seepage monitoring involves measuring very small changes in water height (head), atmospheric pressure changes (weather fronts) could normally cause errors in the reading.
The G90-V500 uses a 'Vented' sensor. A small capillary tube runs inside the cable, allowing the sensor to automatically subtract atmospheric pressure. This ensures that a rise in the recorded data is truly caused by more water, not just a change in the weather.
The system is designed for the damp, dark, and often inaccessible environments of dam inspection galleries. The 316L stainless steel housing is highly resistant to corrosion, and the vibrating wire technology ensures the sensor won't need recalibration for years, even in continuous immersion.
In a manual system, an operator must physically visit the weir and read a staff gauge. This is often done weekly or monthly. The G90-V500 replaces the human eye with a VW pressure sensor located in a 'Stilling Well'—a vertical pipe that protects the sensor from surface ripples and debris.
The sensor tracks the water height 24/7. Because the relationship between height and flow for a V-notch is mathematically fixed, a data logger can provide a live feed of the seepage rate, which is much more effective for identifying seasonal trends or sudden structural shifts.
Because seepage monitoring involves measuring very small changes in water height (head), atmospheric pressure changes (weather fronts) could normally cause errors in the reading.
The G90-V500 uses a 'Vented' sensor. A small capillary tube runs inside the cable, allowing the sensor to automatically subtract atmospheric pressure. This ensures that a rise in the recorded data is truly caused by more water, not just a change in the weather.
Seepage is one of the most critical health indicators for a dam. While some seepage is normal, a sudden 'spike' in flow can indicate the start of internal erosion (piping).
By integrating the G90-V500 with a Geolook GL-DL series data logger, alarm thresholds can be set. If the seepage exceeds a safety limit, the system can automatically trigger an SMS or email alert, providing engineers with critical time to inspect the structure and mitigate risks.
The system is designed for the damp, dark, and often inaccessible environments of dam inspection galleries. The 316L stainless steel housing is highly resistant to corrosion, and the vibrating wire technology ensures the sensor won't need recalibration for years, even in continuous immersion.
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