Engineering summary
Specs and applications of the QL-SeismoSense AE monitoring system: 4, 8 or 16 channels, 1.25 MS/s at 18-bit, FPGA processing, GPS sync under 1 µs, IP68, -40 to +85 °C.
In short: An acoustic emission monitoring system detects the high-frequency stress waves released when material cracks, deforms or fatigues, revealing internal damage before it reaches the surface. QuakeLogic's QL-SeismoSense offers 4, 8 or 16 channels at 1.25 MS/s (18-bit) or 5 MS/s (16-bit), FPGA real-time processing, GPS timing under 1 µs for event localization, an IP68 housing rated -40 °C to +85 °C, and web-based remote access.
Critical infrastructure, industrial assets, and geotechnical structures face constant environmental and operational stress. Consequently, identifying internal material degradation before it becomes a catastrophic failure is a major engineering challenge. Therefore, implementing a proactive acoustic emission monitoring system is essential to detect deep-seated damage before it surfaces on the material.
Fortunately, the QuakeLogic QL-SeismoSense AE Monitoring System offers a highly advanced and proactive solution for modern industries. By utilizing continuous, real-time data acquisition, this advanced system captures the micro-seismic activity and structural changes that occur deep within materials. As a result, operators can now assess structural health with unprecedented precision, reliability, and technical confidence.
Why Choose This Acoustic Emission Monitoring System?
The QL-SeismoSense is a high-performance acoustic emission monitoring solution engineered for uninterrupted, long-term performance in demanding environments. At its core, the system utilizes high-sensitivity AE sensors to capture high-frequency stress waves caused by material deformation, cracking, or fatigue. For more comprehensive insights into technical architectures, you can also explore external structural engineering guidelines regarding non-destructive testing methods.
Furthermore, the hardware architecture features multi-channel data acquisition paired with high-speed FPGA-based signal processing. This powerful combination ensures that micro-seismic events are detected, filtered, and analyzed in real time without any data loss. To support distributed monitoring networks, the system also incorporates an integrated GPS synchronization module, delivering high-precision time alignment ($<1$ µs) for precise event localization across wide areas. To see how this fits into broader facility safety protocols, check out our internal structural safety overview.
Core System Configurations & Specs
The QL-SeismoSense system is highly scalable and available in multiple channel configurations to match different project scales. Whether you are monitoring a localized industrial component or a massive suspension bridge, the hardware adapts to your requirements. All technical details can be verified in the official “QL-SeismoSense AE Monitoring System-Datasheet.pdf” document.
| Feature | Technical Specification |
| System Configurations | 4-Channel, 8-Channel, or 16-Channel options |
| Sampling Performance | 1.25 MS/s @ 18-bit, 5 MS/s @ 16-bit |
| Time Accuracy | $<1$ µs with GPS Synchronization |
| Operating System | Embedded Linux with ARM-Based Processor |
| Protection Class | IP68 (Dust and waterproof) |
| Operating Temperature | -40°C to +85°C |
| Power Supply & Draw | 9-28 V DC ($<10$ W for 8-Channel configuration) |
Key Benefits of an Acoustic Emission Monitoring System
Implementing the QL-SeismoSense acoustic emission monitoring system brings clear operational and financial advantages to infrastructure management.
- Improved Monitoring Efficiency: The system provides automated, real-time event detection and continuous data acquisition, enabling rapid structural assessments.
- Reduced Maintenance Costs: By enabling the early identification of material fatigue, structural defects, and critical changes, operators can intervene before costly failures occur.
- Enhanced Operational Reliability: With synchronized multi-channel monitoring and precise event localization, data remains accurate and actionable.
- Seamless Remote Access: Built-in Ethernet and Wi-Fi—along with an optional cellular communication module—allow secure remote configuration, alarm management, and real-time data visualization via a web interface.
Additionally, the system tracks and extracts crucial acoustic emission parameters. These include amplitude, duration, rise time, energy, counts, and advanced B-value & Beta analysis. This comprehensive data suite allows engineers to perform deep engineering analysis and export clean PDF reports directly from the system.
Versatile Industry Applications
Because of its rugged IP68 design and flexible web-based software, the QL-SeismoSense is deployed across a wide spectrum of industries:
- Structural Health Monitoring: Continuous safety assessments for bridges, tunnels, and buildings.
- Geotechnical & Mining Monitoring: Tracking micro-seismic activity, slope stability, and rockburst hazards.
- Industrial Equipment Monitoring: Detecting early fatigue or structural degradation in high-value industrial machinery.
- Seismic Research: Utilizing laboratory testing and field deployment data for advanced geophysical studies.
Why QuakeLogic
This project demonstrates QuakeLogic’s ability to deliver full-cycle engineering solutions that combine hardware, software, and AI into a unified system. From concept to commissioning, every component is designed for precision, reliability, and long-term performance.
Let’s build the future of your facility together. Contact QuakeLogic today to discuss your custom project needs.
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Key Takeaways
- QL-SeismoSense is available in 4-, 8- and 16-channel configurations.
- Sampling reaches 1.25 MS/s at 18-bit or 5 MS/s at 16-bit with FPGA-based real-time processing.
- Integrated GPS synchronization aligns channels to under 1 µs for event localization across distributed networks.
- IP68 housing, -40 °C to +85 °C operation, 9–28 V DC input, under 10 W for the 8-channel unit.
- Extracted AE parameters: amplitude, duration, rise time, energy, counts, plus B-value and Beta analysis.
Frequently Asked Questions
An acoustic emission monitoring system detects the transient high-frequency stress waves that a material releases when it cracks, deforms or fatigues under load. Because these micro-seismic events originate inside the material, the system can flag internal degradation in bridges, tunnels, rock slopes or machinery before any damage is visible on the surface. High-sensitivity AE sensors feed multi-channel data acquisition and real-time processing so events are detected, filtered and analyzed as they occur.
Locating an acoustic emission source depends on comparing the arrival times of the same stress wave at several sensors. The QL-SeismoSense includes an integrated GPS module that aligns all channels, and separate units in a distributed network, to better than 1 µs. That timing accuracy lets the software triangulate event positions reliably across a large structure such as a suspension bridge or a wide geotechnical site.
Acoustic emission signals are high-frequency stress waves, so the acquisition system must sample far faster than a seismic datalogger. The QL-SeismoSense samples at 1.25 MS/s with 18-bit resolution or 5 MS/s with 16-bit resolution, and uses FPGA-based signal processing so that events are detected and filtered in real time without data loss. Higher resolution favors small-amplitude events; higher rate favors waveform detail.
Acoustic emission monitoring is used for structural health monitoring of bridges, tunnels and buildings; geotechnical and mining monitoring of micro-seismic activity, slope stability and rockburst hazards; industrial equipment monitoring to catch early fatigue in high-value machinery; and seismic research combining laboratory and field data. The QL-SeismoSense's IP68 rating, -40 °C to +85 °C range and web-based software allow it to be deployed across all of these environments.
The QL-SeismoSense tracks the standard acoustic emission parameters for each detected event: amplitude, duration, rise time, energy and counts, and adds B-value and Beta analysis for trend interpretation. Engineers can review these through the web interface, manage alarms remotely over Ethernet, Wi-Fi or an optional cellular module, and export clean PDF reports directly from the system for documentation and further engineering analysis.
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Topic cluster
Related engineering knowledge areas
- Earthquake EngineeringSeismic hazard, ground motion, structural response, fragility, and resilience guidance.
- Structural Health MonitoringMonitoring for bridges, buildings, dams, tunnels, industrial facilities, and resilient infrastructure.
- Earthquake Early WarningOn-site detection, alerting workflows, seismic switches, and critical infrastructure warning systems.
- Infrasound MonitoringLow-frequency acoustic sensing for environmental noise, blast, UAV, volcano, and defense applications.
Definitions and references
Terms, standards, and source cues
- seismic hazard: related to Earthquake Engineering in this QuakeLogic knowledge cluster.
- ground motion: related to Earthquake Engineering in this QuakeLogic knowledge cluster.
- SHM: related to Structural Health Monitoring in this QuakeLogic knowledge cluster.
- damage detection: related to Structural Health Monitoring in this QuakeLogic knowledge cluster.
- earthquake early warning: related to Earthquake Early Warning in this QuakeLogic knowledge cluster.
- seismic switch: related to Earthquake Early Warning in this QuakeLogic knowledge cluster.
- infrasound sensors: related to Infrasound Monitoring in this QuakeLogic knowledge cluster.
- low-frequency noise: related to Infrasound Monitoring in this QuakeLogic knowledge cluster.
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