Q1S Laser RADAR for fixed structural monitoring
Ommatidia Q1S is a fixed, non-contact Laser RADAR system for structural monitoring. Its 128 parallel channels capture a geometry-aware view of vibration, short-term deflection, and long-term displacement—without placing sensors across the structure.
Use the data to plan inspections, prioritise maintenance, and track how an asset behaves over time.
128 parallel channels for vibration, deflection, strain analysis, and long-term displacement monitoring from one fixed system.
Monitor the structure, not a handful of instrumented points
Choose Q1S when you need repeatable evidence from a fixed position and cannot—or should not—cover the asset in conventional sensors. It is built for large, difficult-to-access structures and long-term monitoring programmes.
Bridges and transport assets
Capture operational vibration and deflection behaviour without closing lanes or distributing sensors across the span.
Buildings and complex structures
Understand how wind, traffic, occupancy, or seismic events affect structural response and resilience.
Tunnels, dams, and water infrastructure
Track movement and dynamic response where installation is difficult, disruptive, or not appropriate for the asset.
Vibration now. Displacement over time.
Q1S pairs high-rate vibrometry for operational modal analysis with absolute interferometric displacement measurement for long-term surveys. From one fixed position, you can see how a structure responds in the moment and how it changes over time.
- Vibration and deflection curves with sub-micron noise levels
- 40 kHz vibrometry sampling for dynamic response
- Absolute interferometry for long-term structural displacement
Evidence that moves maintenance forward
Operational modal insight
See resonance frequencies and mode shapes from ambient or operational vibration.
Displacement trends
Separate short-term load response from longer-term movement, so the next inspection starts with the right question.
Digital-twin-ready context
Bring geometry, vibration, and other sensor data together in a model your team can use.
Bridge strain starts with the deflection profile
Q1S captures dense displacement profiles along a bridge from a remote position. For beam-like spans where bending dominates, engineers can derive curvature and surface-strain estimates from that measured shape using Euler-Bernoulli beam theory.
The result is a practical route from live bridge movement to strain insight, with the measurement geometry and structural model made explicit.
One dynamic event, shown as velocity, displacement, and the resulting strain estimate.
When the workflow is a fit
- Remote capture of a dense line of bridge response
- Strain-ready analysis for bending-led spans
- A second view when axial or local effects matter
For a fixed-monitoring context, the same spatial evidence helps teams interpret live-load behaviour and compare repeatable structural response over time.
A fixed-monitoring system that fits the field workflow
Built for outdoor, long-term deployment, Q1S brings IP54 protection, Gigabit Ethernet, GPS synchronisation, and environmental compensation into a compact system.
It works alongside accelerometers, strain gauges, and distance sensors—adding a dense, non-contact view where access to the surface is limited.
- IP54 environmental protection
- GPS and Gigabit Ethernet interfaces
- Atmospheric compensation for pressure, temperature, and humidity
Technical details for the monitoring plan
Measurement
| Measurement range | 0.5–50 m |
|---|---|
| Points per line | 128 |
| Optical focus | Fixed (0.5–50 m) |
| Acquisition speed | 128–25,600 points/s |
| Measurement accuracy | 20 µm + 6 µm/m |
| Angular range | 12°, 30° or 62° |
Vibrometry
| Sampling frequency | 40 kHz |
|---|---|
| Max. in-band velocity | ±155 mm/s |
| Velocity sensitivity | <50 nm/s/√Hz |
| Strain sensitivity | <1 µstrain |
| Displacement sensitivity | <0.1 µm |
| Integrated accelerometer | IMU (attitude only) |
Deployment and integration
| Power consumption | 45 W |
|---|---|
| External battery operation | 240 min |
| Interfaces | Gigabit Ethernet / GPS antenna |
| Mount | Thread 3.5″–8 TPI |
| Dimensions (without battery) | 382 × 228 × 150 mm |
| Weight (without battery) | 7.5 kg |
| Pointing aid | Red (650 nm) pointer laser |
| Atmospheric compensation | Pressure, temperature, humidity |
| Operational temperature | 0–40°C |
| Environmental protection | IP54 |
| Laser classification | 1550 nm (Class 1M) |
| Calibration | ISO 16063-41-aligned calibration protocol |
Specifications are subject to change without notice.
Q1S FAQs
Q1S captures structural vibration, deflection and long-term displacement remotely across 128 simultaneous measurement channels. Its fixed installation turns bridges, buildings, towers and other large assets into repeatable measurement programmes without distributing contact sensors across the structure.
Laser Doppler vibrometry captures vibration and short-term deflection curves at up to 40 kHz. Absolute interferometry tracks long-term structural displacement, bringing fast dynamics and slow movement into one monitoring platform.
Gigabit Ethernet and GPS synchronize Q1S with accelerometers, strain gauges and distance sensors. IP54 protection and atmospheric compensation support permanent outdoor measurement while preserving a shared time base across optical and reference channels.
The 128-channel measurement line delivers synchronized time histories, deflection curves, modal data and long-term displacement trends for operational modal analysis, condition assessment and engineering reporting.
Need a different Q-Series measurement route?
Q1
For field-ready remote metrology and 128-beam vibrometry on large or difficult-to-access targets.
Q2
For dense full-field vibration characterization, complex geometry, and integrated 3D motion analysis.
Compare the Q-Series
See QMini, Q1S, Q1, and Q2 side by side and choose the system around the required outcome.
Plan the monitoring system around your asset
Tell us about the structure, access conditions, and the behaviour you need to understand. We’ll help map the measurement line, deployment approach, and outputs your team needs.
Ommatidia Upgrade & Trade-In Program
Upgrade to Ommatidia’s latest Laser RADAR technology and unlock more capability for your next measurement challenge. Whether you are expanding an existing setup or replacing an older system, we offer tailored upgrade options with discounts of up to 40%.
If you are currently using another manufacturer’s system, send us your model and measurement requirements. We will review your trade-in possibilities, identify the best Ommatidia configuration, and outline a practical upgrade path for your team.