Abstract: A sensor arrangement for a railway system may include a rail claw that is connectable to a rail of the railway system, and a sensor that is configured to measure a spatial position of at least a segment of a movable railway element of the railway system by a contactless measurement and to differentiate between at least two different spatial positions of the segment of the movable railway element. The sensor may be mechanically connected with the rail claw. Furthermore, a method for monitoring a railway system is provided.

Abstract: A monitoring unit for monitoring a railway track is provided. The monitoring unit may include a processing unit, at least one wheel sensor connectable to a rail of the railway track, and a sensor arrangement connectable to a railway switch of the railway track. The wheel sensor and the sensor arrangement may be connected with the processing unit, and the processing unit may include an output that is connectable to a signaling system. Furthermore, a method for monitoring a railway track is provided.

Abstract: A method for monitoring a railway system is provided. The method may include arranging a sensor below a movable railway element of the railway system, and measuring a spatial position of at least a segment of the movable railway element by a contactless measurement by the sensor. The sensor may be configured to differentiate between at least two different spatial positions of the segment of the movable railway element, and the respective spatial position may relate to the distance between the segment of the movable railway element and a rail of the railway system. Furthermore, a sensor arrangement for a railway system is provided.

Abstract: A sensor arrangement for a railway system is provided. The sensor arrangement may include a plurality of sensors, each sensor having a coil. The sensors may be arranged in a two-dimensional arrangement, each sensor may have a sensing range within which the respective sensor is configured to detect movement of electrically conductive material, and for each position along a sensing distance within the two-dimensional arrangement, the sensor arrangement may include at least two sensors of the plurality of sensors whose sensing range extends over the respective position.

Abstract: A method for measuring wear of a rail (20) comprises detecting a first set of wheel signals (SW1) by a wheel sensor (21) mounted to the rail (20), determining a first average wheel signal (AV1) of the first set of wheel signals (SW1), detecting at least one second set of wheel signals (SW2) by the wheel sensor (21), where the second set of wheel signals (SW2) is detected after detecting the first set of wheel signals (SW1), determining a second average wheel signal (AV2) of the second set of wheel signals (SW2), and determining a difference signal (DIF) given by the difference between the second average wheel signal (AV2) and the first average wheel signal (AV1), wherein a wheel signal is detected when a wheel (22) of a rail vehicle passes the wheel sensor (21). Furthermore, an evaluation system (23) for measuring wear of a rail (20) is provided.

Abstract: A sensor arrangement (20) comprises a wheel sensor (21) which is arranged to detect wheels of rail vehicles, a carrier (22), and a connector (23), wherein the wheel sensor (21) is fixed on the carrier (22), the connector (23) is fixed to the carrier (22), and the connector (23) is electrically connected with at least one electrical contact (24) of the wheel sensor (21).

Abstract: A monitoring unit for monitoring a linear asset includes a connection to a data output of a distributed sensor arranged along the linear asset, where the linear asset has a length which is different from the length of the distributed sensor, and a processing unit which is configured to receive a data signal provided by the distributed sensor, to apply a transfer function, to evaluate the data signal and to provide a tracking output signal. Evaluating the data signal includes running an evaluation algorithm, the transfer function is applied to the data signal or to the evaluation algorithm, and by applying the transfer function, the data signal or the evaluation algorithm is normalized. Furthermore, a method for monitoring a linear asset is provided.

Abstract: A detector (10) for detecting electrically conductive material is provided. The detector (10) comprises at least one transmitter (11) having a transmitter coil (12) and a supply source (13), a receiver (14) having a receiver coil (15), and an evaluation unit (16), wherein the transmitter coil (12) is connected to the supply source (13), the supply source (13) is configured to provide an alternating voltage or an alternating current when in use, the receiver (14) is designed as a resonant-circuit-free receiver, the receiver (14) is connected to the evaluation unit (16), and the evaluation unit (16) is configured to detect a signal induced in the receiver coil (15).

Abstract: An evaluation unit 10 for a sensor arrangement for railway monitoring is described, the evaluation unit 10 comprising a connection to a position sensor 11 and a connection to a tracking sensor 12. The position sensor 11 is capable of detecting rail vehicles 19 passing over the position of the position sensor 11 on a railway track 14 and provides a position output signal 15. The tracking sensor 12 comprises a fibre optic sensor 16, which is capable of detecting the position of noise along the railway track 14 and the tracking sensor 12 provides a tracking output signal 18. The evaluation unit 10 provides an output signal 13 that depends on the position output signal 15 and the tracking output signal 18. Further, a sensor arrangement for railway monitoring and a method for evaluation of railway monitoring signals are described.