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Wave Reflection based Speed Sensors

HaslerRail has been supplying speed indicators and data recording systems, including wave reflection speed sensors, to the rail industry since 1887. Today, tens of thousands of our devices and systems are in service around the globe.

Wave Reflection based Speed Sensors

HaslerRail has been supplying speed indicators and data recording systems, including wave reflection speed sensors, to the rail industry since 1887. Today, tens of thousands of our devices and systems are in service around the globe.

Features / Benefits

  • Track-independent, dynamic measurement on railhead
  • Measurement range of 0.5 km/h to 400 km/h
  • Reliable data acquisition during braking and acceleration
  • Direction detection
  • High-reliability optical soiling detection
  • Long-lasting, high-power infrared LED lighting
  • Measurement uncertainty under 0.05%
  • Robust design for mounting on boogie
  • Standstill detection (< 0.2 km/h)
  • Low maintenance and service costs

HaslerRail developed the CORRail 1000 sensor to deliver track-bed-independent direct measurement of a rail vehicle’s speed and direction, using the railhead as a reference. The sensor, which outperforms other measurement technologies, is designed to facilitate maintenance and to withstand operation in even the harshest environments. The sensor is slip and slide resistant.

Robust, high-power infrared LEDs are used as a light source, and an optical channel indicates soiling on the front glass; the glass is also designed for easy replacement if damaged.

The sensor is designed to deliver an objective measurement of longitudinal dynamics for the following applications:
– Drive Systems: slip-free measurement of speed, acceleration, wheel slip
– Measurement of braking distance: navigation/positioning

Product Description

  • Power supply: wide range, U_ = 20 .. 32 V
  • Power consumption: < 36 W
  • Reference surface: railhead
  • Working distance: 125 +/- 50 mm
  • Pulse output: configurable range 1 .. 1’000 pulses per meter
  • Alternative speed interface: RS485
  • Protection degree: IP 67
  • Weight of the whole system: approx. 4.5 kg
  • Standards: EN 50155
  • Software and configuration update in the field through service interface
  • Several diagnostic functions available
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