Smart Sensing Solutions for Structural Health Monitoring
About QUAD-S Monitoring
At the core of our identity is a promise to the industry
Our Name
QUAD-S Monitoring stands for the four pillars that define our approach to modern engineering:
Smart Sensing for Safe StructuresThis acronym reflects our commitment to delivering intelligent, data-driven insights that ensure the safety and longevity of civil infrastructure.
Our Logo: Bridging the Gap
Our logo symbolizes our role as the vital link between technology and engineering. In the era of big data, there is often a disconnect between data scientists and the civil engineers on the ground. QUAD-S Monitoring exists to close that distance.
Our Mission: Democratizing SHM
We believe that keeping structures safe should not be complicated or exclusive. Our mission is to democratize Structural Health Monitoring (SHM) through a blend of relentless innovation and genuine curiosity.
Our Services
From problem analysis to implementing complex monitoring systems, QUAD-S Monitoring offers end-to-end solutions for infrastructure health monitoring.
At QUAD-S Monitoring, we specialize in turnkey solutions in civil engineering and structural health monitoring that help engineers, asset managers, and owners of critical infrastructure make data-driven decisions about their assets.
Our experienced team of engineers utilizes state-of-the-art sensing technologies, including fiber optic sensors, wireless sensor networks, and advanced data acquisition systems. We develop tailored solutions for a wide range of infrastructure types including bridges, buildings, tunnels, dams, and historical monuments.
Through our real-time monitoring, clients detect anomalies early, implement predictive maintenance, extend asset service life, and enhance infrastructure safety. Whether you need short-term monitoring for a specific issue or continuous long-term surveillance, QUAD-S Monitoring provides reliable, actionable insights.
Problem Analysis
Detailed analysis of structural issues to identify monitoring needs and develop tailored solutions.
Feasibility Studies
Comprehensive feasibility studies and cost-benefit evaluations to ensure optimal monitoring strategies.
Monitoring System Design
Custom design of SHM systems from periodic auscultation to continuous high surveillance configurations.
Sensor Integration
Expert assembly and application of sensors, both embedded and surface-mounted, with integration of complementary systems.
Data Analysis
Advanced data analysis and assessment to transform sensor data into actionable insights for infrastructure management.
Engineering Reports & Insights
Turn post-processed data into smart decisions. QUAD-S Monitoring delivers actionable insights that go beyond instrumentation—empowering you to maintain and protect your structures with confidence.
Our Applications
Comprehensive Solutions for Infrastructure Monitoring and Testing
Instrumentation & Monitoring
Auscultation & On-Site Testing
Laboratory Testing & Measurements
Where We Intervene
QUAD-S Monitoring provides monitoring solutions for a wide range of infrastructure types across various sectors.
Bridges
Cable-stayed, suspension, beam, arch, and truss bridges require specialized monitoring solutions.
Tunnels
Underground and underwater passages demand careful monitoring for safety and structural integrity.
Buildings
Commercial, residential, and high-rise buildings benefit from smart sensing technologies.
Roads
Highways, overpasses, and critical road infrastructure require continuous assessment.
Dams
Water retaining structures requiring precise monitoring to ensure safety and performance.
Industrial Structures
Manufacturing facilities, warehouses, and industrial complexes with unique monitoring needs.
Our Equipment
We utilize cutting-edge technology and specialized equipment to deliver accurate structural health monitoring and analysis.
Traditional Systems
Wired monitoring solutions providing high precision and reliability for structural health monitoring
Advantages
- •High precision measurements (±0.1% to ±0.01%)
- •Reliable long-term performance
- •Robust in harsh environments
- •High sampling rates (up to 1000Hz)
- •Direct integration with structural elements
Suppliers
Accelerometer
Measures vibration and acceleration in structures
Strain Gauges
Small sensors for precise localized strain measurement
Long Gauge Strain Sensor
Measures strain over extended distances
Laser Distancemeter
Measures precise distances using laser technology
Crackmeter
Monitors crack width and movement over time
Continuous Dynamic Measuring DAQ
High-precision data collection and processing unit
Portable High Frequency NI DAQ
High-frequency data acquisition with 102.4 kHz per channel sampling rate
Our Clients
We are proud to work with industry leaders who trust our expertise in structural health monitoring.
Artelia
CETIM
Logirep
Case Studies
Explore our successful projects and see how we apply advanced monitoring in real-world scenarios
Bridge Hanger Inspection Using Ultrasonic Testing
Suspension Bridge
Non-destructive ultrasonic inspection of suspension bridge hanger collars and tightening rods in Loire Region. EPOCH 600 OLYMPUS flaw detector with 0.1% accuracy and thermal compensation inspected 50 collars and 400+ rods in 4 days with no defects detected.
Challenge
Inspecting 50 hanger collars and over 400 tightening rods for potential defects while ensuring structural integrity.
Solution
QUAD-S Monitoring utilized the EPOCH 600 OLYMPUS ultrasonic flaw detector with high-precision measurements (0.1% accuracy) and thermal compensation to assess rod condition and detect potential breakages.
Results
Comprehensive inspection completed in 4 days with no defects detected. All measurements showed consistency with baseline data, confirming satisfactory structural condition.
Smart Structures Blog
Insights, updates, and expert perspectives on structural health monitoring and smart infrastructure.
From Cable‑to‑Cloud: How DFOS Tech Is Re‑shaping Structural Health Monitoring
Distributed Fibre Optic Sensing (DFOS) is flipping the SHM play book: one hair thin glass fibre can replace thousands of discrete gauges...
Advances in Wireless Sensor Technologies for Structural Health Monitoring
Wireless Sensor Networks (WSNs) have evolved from experimental gadgets to essential tools for smart infrastructure...
Get in Touch
Ready to enhance your infrastructure monitoring? Contact us to discuss your project requirements.
Address
60 bis boulevard du Maréchal Joffre
92340 Bourg-la-Reine, France
Phone
+33 7 60 56 88 86
contact@quad-s.eu