We provide a variety of configurations for use of linescan cameras to image track seamlessly at speeds varying between 10 to 200 mph. The systems are capable of imaging at up to 0.1 mm per pixel and provide an extremely good quality image of the track. We use uniform LED lighting to provide illumination greater than 60,000 Lux on the ground. Our typical camera configurations use 5 or 7 cameras for downward imaging. The following three images show camera positions under the rail vehicle.
The above image shows two rail-head imaging cameras. The images from these cameras are used for analysis of cracks, broken rails, squats, wheelburns, shelling, corrugation marks, missing fasteners, defects on baseplates, expansion joint measurements and analysis of fishplate joints (abnormal gaps, defects). We next show the center camera configuration.
The above image shows the center camera which images the track area in between the two rails. These images can be used to analyse ballast problems, switch area defects, and recognise various signalling assets including AWS magnets, Train Protection Warning System, and cables. We next show the angular camera configuration.
The above image shows two angular cameras imaging the inside of the rail and web area. Additional cameras can be mounted to the outside of the rails imaging inwards. Angular imaging requires dedicated extra LED lighting to cover the web area. Angular camera images are used to detect defects on fishplates such as missing bolts, cracks, missing T pieces, weld defects and any form of breaks on web area.