Catenary Measurement
Catenary Measurement
Measurement of catenary position and stagger along the track
The Catenary Measurement System is a high-performance, non-contact solution for the measurement and monitoring of overhead catenary geometry. Designed for integration on any type of railway vehicle, it operates reliably both in open track and tunnel environments, at speeds up to 350 km/h and in all light conditions, day or night.
The system measures key parameters such as catenary height, stagger, slope and optionally wire wear, providing accurate and repeatable results even in curves or under dynamic vehicle motion.


Technical Data
Height accuracy Roof referenced | ± 3 mm (2sigma, for 95% of measures) |
Stagger accuracy Roof referenced | ± 3 mm (2sigma, for 95% of measures) |
Height accuracy Rail referenced (compensated) | ± 8 mm |
Stagger accuracy Rail referenced (compensated) | ± 8 mm |
Sampling Speed | Up to 8000 Hz |
Stagger Operating Range | ± 500 mm |
Height Operating Range | ± 1500 mm |
Wire Detected | Up to 2 wires |
Position Synchronization
Each measurement is precisely geo-referenced thanks to an integrated tracking system that combines:
- GPS (for use in open-air sections)
- Wheel-mounted encoder (for accurate tracking inside tunnels)
This dual-source localization ensures uninterrupted position tracking and reliable mapping of measurement data to the track layout.
