Automatic inspection of railway overhead wires
conference paper
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 performed with a prototype system, demonstrating the feasibility of the measuring principe.
TNO Identifier
246235
Publisher
SPIE
Source title
Industrial Inspection, ECO1, 19-20 September 1988, Hamburg, Federal Republic of Germany
Collation
11 p.
Pages
107-117