Dafnozonara Dam

Quick Facts
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Challenge
Provide continuous monitoring of the dam’s structural integrity under seismic activity, water-level variations, and environmental stresses. Detect anomalies early to protect downstream communities and comply with regulatory requirements.
Solution
The project was implemented using the xDAS Sentry system, consisting of:
- 3 xWave triaxial accelerometers (9 channels total) to monitor vibrations and dynamic responses.
- xPlorer Premium with Voyager software as the central acquisition and data management module.
- Observer software suite for advanced Operational Modal Analysis (OMA), enabling engineers to track natural frequencies, damping ratios, and mode shapes under real operating conditions.
- FTP redundancy to automatically transfer measurement data to a secure remote server in Athens, ensuring reliable backup and continuous access even if local connectivity is interrupted.
Outcomes
The upgrade equips operators with continuous, high-precision monitoring of the dam’s dynamic behavior. The integration of Observer enables advanced OMA analysis for early detection of subtle structural changes, while FTP redundancy guarantees data security and long-term reliability in this remote mountain environment. Together, these measures enhance operational safety, support compliance, and ensure the sustainable operation of the hydropower facility.
Tech Stack
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