For the Netherlands railway company a system for inspection of the degree of wear of the contact wires is being developed. With an active sensor the reflective under-surface of the overhead wire is illuminated with a laserbeam and reflected radiation is detected by fast CCD detectors. With the sensor at a train speed of 90 km/hr. every cm of max. 4 overhead wires will be inspected, determining the wire thickness and the appearance of holes caused by local sparks. For illumination and detection a special optical system has been developed. From the railway inspection waggon measurements have been perfomed with a prototype system, demonstrating the feasibility of the measuring principle.


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    Title :

    Automatic inspection of railway overhead wires


    Additional title:

    Automatische Pruefung von Eisenbahnhochleitungen


    Contributors:


    Publication date :

    1989


    Size :

    11 Seiten, 10 Bilder


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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