High-dynamic range seismic recorder designed for permanent earthquake monitoring and structural response analysis.
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High-dynamic range seismic recorder designed for permanent earthquake monitoring and structural response analysis.
The Geolook G88-Y320 is a professional-grade Strong Motion Accelerograph designed for the permanent monitoring of critical infrastructure in seismically active zones. It is engineered to capture high-intensity earthquake data without signal saturation, providing the "golden record" needed for post-event structural safety assessments. The system combines a force-balance triaxial accelerometer with a high-resolution 24-bit digitizer and internal storage. It is designed to remain in a low-power "trigger" mode for years, instantly waking up to record full-waveform data the moment a seismic threshold is crossed. It serves as a vital component in Earthquake Early Warning (EEW) networks and dam safety programs.
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Unlike standard MEMS sensors, the G88-Y320 utilizes force-balance (servo) technology. This system uses an electromagnetic feedback loop to keep the internal mass centered at all times.
This results in a massive dynamic range. It is sensitive enough to record the tiny 'P-waves' that arrive first, yet rugged enough to stay perfectly linear during the violent shaking of a major earthquake, ensuring the peak acceleration values are accurately captured.
For large-scale monitoring—such as a bridge with 20 sensors—it is vital that all units record data at the exact same microsecond. The G88-Y320 uses an internal GPS/GNSS receiver to keep its internal clock synchronized to UTC time.
This synchronization allows engineers to track the 'wave front' as it travels through the structure, enabling complex modal analysis and the identification of structural resonance shifts.
To manage data efficiently, the unit can be configured in two ways. In 'Continuous' mode, it streams data 24/7 to a central server. In 'Trigger' mode, it uses STA/LTA algorithms to detect an event.
When a trigger occurs, the system records the event including a 'pre-event buffer' (capturing the seconds leading up to the shake). This ensures that the very start of the seismic wave is never missed.
Following a significant earthquake, the immediate question is: 'Is the building safe to enter?' The G88-Y320 provides the answer. By comparing the floor-by-floor acceleration response against the building's design model, the system can automatically generate a 'Red/Yellow/Green' safety status report within minutes of the event.
Unlike standard MEMS sensors, the G88-Y320 utilizes force-balance (servo) technology. This system uses an electromagnetic feedback loop to keep the internal mass centered at all times.
This results in a massive dynamic range. It is sensitive enough to record the tiny 'P-waves' that arrive first, yet rugged enough to stay perfectly linear during the violent shaking of a major earthquake, ensuring the peak acceleration values are accurately captured.
To manage data efficiently, the unit can be configured in two ways. In 'Continuous' mode, it streams data 24/7 to a central server. In 'Trigger' mode, it uses STA/LTA algorithms to detect an event.
When a trigger occurs, the system records the event including a 'pre-event buffer' (capturing the seconds leading up to the shake). This ensures that the very start of the seismic wave is never missed.
For large-scale monitoring—such as a bridge with 20 sensors—it is vital that all units record data at the exact same microsecond. The G88-Y320 uses an internal GPS/GNSS receiver to keep its internal clock synchronized to UTC time.
This synchronization allows engineers to track the 'wave front' as it travels through the structure, enabling complex modal analysis and the identification of structural resonance shifts.
Following a significant earthquake, the immediate question is: 'Is the building safe to enter?' The G88-Y320 provides the answer. By comparing the floor-by-floor acceleration response against the building's design model, the system can automatically generate a 'Red/Yellow/Green' safety status report within minutes of the event.
We are currently updating the specific model configurations and technical datasheets for this product category.