Tracks & Rail traffic

In order to check the structural geometry of bridges and tunnels, these are regularly inspected by maintenance trains. The latter are equipped with optoNCDT ILR series laser time-of-flight sensors. These sensors detect the vertical distance from…

In contrast to conventional railways, in magnetic railways the drive is not installed in the vehicle but in the track. In the Transrapid, wheels and rails of the conventional railway are replaced by a non-contact electromagnetic carrying, guiding…

In order to test brake systems of wagons and railcars, test benches are used where infrared pyrometers or thermal imaging cameras are installed. These temperature measuring devices detect the passing train and measure laterally on the brake…

The company Mills CNC is a supplier of machine tools. They use MicroEpsilon laser sensors for the automatic inspection of large, hot-rolled railway fishplates made of steel. These fishplates join two rails together and must be as straight and…

For the inspection of diesel locomotives, regular inspection of the combustion chamber and documentation are required. Inadequate quality inspection or failures such as faulty valve seats or defective running surfaces can cause serious…

Especially in the case of high-speed railway lines, preventive inspection of the overhead lines is important in order to ensure that the lines are passable. optoCONTROL laser micrometers are used to enable reliable wear inspection. These are…

optoCONTROL laser micrometers are used to selectively check railway tracks for flatness and deflection. These are integrated in a test trolley and detect the track at three points with high accuracy, regardless of the condition of the track…

During maintenance and servicing, it is often necessary to lift entire trains. Synchronous heavy-duty lifting systems are used for this purpose. In order to synchronize the lifting height of the individual columns, optoNCDT ILR laser…

An inductive EDS displacement sensor is used for stroke measurement of hydraulic cylinders in diesel-hydraulic drives. The inductive long-stroke sensor monitors the unintended traction of the locomotive and is thus a safety-relevant component in…

In high-speed trains, the oil gap in axle bearings is permanently checked. The oil film in the lubricating gap prevents direct contact between the bearing surface and the shaft. The improved sliding properties of the bearing increase the…

Inductive EDS displacement sensors are integrated in high-speed trains to determine the inclination of the coach body required for cornering. This data is passed on to the control units in the following wagons, which tilt the coach body…

Tread surfaces of wheel tires are exposed to enormous loads. In order to determine the overall condition, to detect defects and to take timely repair measures, the wheel discs must be inspected regularly. The wheel sets are first tested in…

Blue laser scanners from Micro-Epsilon are used to monitor the dimensional accuracy of wheel tires during forging. Conventional laser scanners reach their limits with red-hot glowing steel, as its radiation intensity is too high for the sensor…

Increasing utilization of trams causes increased wear on the rails. In order to document the rail wear, measurement wagons equipped with scanCONTROL laser scanners are used to detect, automatically evaluate and analyse the profile data. Laser…

Axle measuring machines are used to check the ovality or diameter of wheels, bearings and gears. These are equipped with 4 optoCONTROL laser micrometers that measure on the rotating axle. Thanks to their high accuracy, ovality or diameter can be…

Rail milling trains are used for repair work on tracks. In order to detect the rail profile before and after the milling head, scanCONTROL laser profile sensors are used immediately before and after the grinding wheel. The target and actual…

Wheel wear on rail vehicles caused by high mileage affects safety and driving characteristics and generates high maintenance costs. Laser sensors from Micro-Epsilon, which are integrated in a test bench in the track bed, are used to preventively…

The Vossloh company is a global leader in the field of rail technology. One of its business units focuses on maintaining the value of the infrastructure, which also includes the maintenance of rails. For this purpose, Vossloh uses, among other…

Track-bound welding robots are used for maintenance and for the construction of new tracks. Thanks to the high degree of automation, the robots achieve rail welds of consistently high quality. scanCONTROL laser profile sensors are used to align…

Wear and tear in the wheelset and bogie can cause natural vibrations that can be felt in the passenger area. Acceleration sensors from Micro-Epsilon are used to record these vibrations.Inertial sensors detect the vibration at various points in…

When turning the wheel tires, laser triangulation sensors monitor the distance to the rotating wheel tire. This means that the ablation is detected with high precision. High-performance sensors detect the dimensional accuracy of the wheel tires…

The load on rails and sleepers is very high, especially in highly frequented curves. Magneto-inductive displacement sensors are used to test the movement and deformation of concrete sleepers in curves. The sensors are fixed in the foundations and…

In order to detect the wear on high-speed railway lines, special measurement wagons inspect the tracks. The measurement wagon contains two optoNCDT 1900 laser displacement sensors. These measure the distance to the track at a high measuring rate.…

The wear of the rail head is an important parameter in the reliable assessment of the condition of the tracks. In order to check the profile of the rail head, scanCONTROL laser profile scanners are used, which are integrated in measurement…

For the inspection of conductor rails, a measurement wagon is used which contains a total of six scanCONTROL laser profile scanners. These scanners detect the profile of the conductor rails from below, above and from the side. The large measuring…