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
(2sigma, for 95% of measures)
With optimum car body stiffness

Stagger accuracy
Rail referenced (compensated)

± 8 mm
(2sigma, for 95% of measures)
With optimum car body stiffness

Sampling SpeedUp to 8000 Hz
Stagger Operating Range± 500 mm
Height Operating Range± 1500 mm
Wire DetectedUp 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.

Railway Catenary Measurement software

Catenary Detector has been adopted by:

Our Projects

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