RDSO Develops Improved Ultrasound Scan Method for Detection of Rail Defects
On Indian Railways, rails are manually scanned through Ultrasonic Single Rail Tester or Double Rail Tester using A-Scan method, in which the operator detects any rail defects by viewing Ultra Sonic image on the screen. In this method, there is no automatic recording of the data and, if the operator is not careful, a defect may be missed out.
Now RDSO has developed an improved B-Scan method of Ultra Sonic Single Rail or Double Rail testing. In this system, the scan is continuously recorded (along with precise GPS location & time data) and kept safe for future viewing. Comparison of any scan with previous scan of the same location will be possible to find out any changes taking place. The B-Scan recording data can also be converted into A-Scan data. Considering these advantages, it has been decided to introduce this improved B-scan method on Indian Railways. RDSO has issued equipment specification to Zonal Railways and is developing vendors for supply of new system for better detection of any track defect. The new machines are likely to be available for testing of Rail defects within next 2-3 months.