Safety & stability - the indispensable service of sensors in rail traffic
Micro-Epsilon solves numerous measurement tasks in railroad transport with its in-depth industry knowledge. The sensor technologies, which are both innovative and robust, make a significant contribution to the safety and stability of railcars, wagons, wheel tires, brakes, track and rails. Various sensor technologies are used, such as inductive sensors, eddy current sensors, laser scanners, inclination and acceleration sensors. Measurements are taken under sometimes adverse conditions with weather, grinding dust and vibrations.
Profile measurement and distance control during forging of wheel tires
Blue laser scanners from Micro-Epsilon are used to monitor the dimensional accuracy of wheel tires during forging. In contrast, conventional laser scanners reach their limits with red-hot glowing steel. But the Blue Laser Technology from Micro-Epsilon is patented for measurement tasks with glowing steel. This allows the wheel tire profile to be continuously monitored during forging in order to feed the measurement data to the control system. In addition, the position of the wheel tire during handling is detected by laser time-of-flight sensors.
Measuring the bearing gap in axle bearings
In high-speed trains, eddy current sensors permanently check the oil gap in axle bearings. 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 turbine’s effectiveness while prolonging its service life.
Measuring the profile of wheel tires in the test bench
Wheel wear on rail vehicles caused by high mileage affects safety and driving characteristics and generates high maintenance costs. Laser sensors detect the profile sets of entire trains as a preventive measure. The maintenance dates for reprofiling are determined on the basis of the profile data.
Deformation measurement of concrete joints and railway sleepers
The load on rails and sleepers is very high, especially in highly frequented curves. Thanks to their robust design, magneto-inductive sensors are ideal for outdoor use and provide long-term stable measurement results that allow statements to be made about the deformation pf railway sleeprs in curves.
Measuring the tilt angle in passenger trains
Inductive induSENSOR EDS displacement sensors are integrated into high-speed trains to measure the inclination of the coach body. This reduces the effect of lateral acceleration forces on passengers.
Details about the measurement tasks and further applications in rail traffic can be found here: