Evaluation units
Interrogator for dynamic events
Evaluation unit designed for dynamic measurement of FBG sensors. The system is based on a unique nonlinear optical source combined with fast optical detectors, which enable measurements with a very fast response of up to 100 kHz. The device is designed for dynamic evaluation of strain in various mechanical structures (bridges, roads, railways, tunnels, etc.). Thanks to its integrated interface, the unit allows to set event properties, measurements, and communication settings. Detected events can be stored in the unit or sent in real time to the cloud via the MQTT protocol.
TECHNICAL PARAMETERS |
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| Measuring range | 4000 µε |
| Measuring frequency | 100 kHz (simultaneously on all channels) |
| Number of measuring channels | 4 (up to 8 as required) |
| Number of sensors per channel | 1 |
| Resolution | 5 µε |
| Absolute precision | 40 µε |
| Optical interface | LC/APC |
| Power supply | 230 VAC / 50 Hz |
| Power consumption | Max. 20 W, typical 15 W |
| Communication interface | Ethernet (RJ-45) |
| Operating temperature | 5 °C – 45 °C (humidity max. 90 %) |
| Weight | 1.5 kg |
| Software | Web configuration interface, automated measurement with event settings, data collection, evaluation, and communication via MQTT protocol |
| Dimensions | 230 × 115 × 80 mm |
Key features
- Compact evaluation system with unique hardware
- High measurement frequency up to 100 kHz
- Configuration via web interface
- Event detection and evaluation
- Data storage and transmission to the cloud using the MQTT protocol
Application
- Critical infrastructure security
- Measurements on bridges, tunnels, etc.
- Detection and counting of rail vehicle axles
- Weigh-in-motion (WIM) measurements
This product was developed with the support of the Technology Agency of the Czech Republic as part of the Trend program.
