DB’s Ultrasonic Trolley: Germany’s Rail Inspection Advancement

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Introduction

DB InfraGO has approved the use of a mobile ultrasonic testing trolley for rail inspection, a decision that follows compliance verification from DB Systemtechnik. This clearance allows for the deployment of the system across Deutsche Bahn’s network.

Operational History and Development

The approval follows three years of successful operation by various European and Asian railways. The trolley was developed in collaboration with the Fraunhofer Institute for Ceramic Technologies and Systems (IKTS) in Dresden.

Inspection Capabilities

The trolley is designed for highly accurate and efficient rail inspections. It can identify and locate internal flaws, corrosion in the rail base, and irregularities in weld seams in a single pass. This makes it suitable for monitoring track sections, switches, crossings, level crossings, and station tracks. The technology can also pinpoint the exact position of previously identified defects to support targeted maintenance interventions.

Data Management and Portability

Inspection results are displayed in real time via A and B scan options and can be combined with camera imagery. Data can be transferred using USB, SD card, or directly via LTE/WiFi. The trolley weighs around 20 kilograms and can be transported in a standard estate car. It can be carried to the track by a single person.

System Features and Maintenance

The system includes a rugged tablet computer for the main control unit, which displays inspection data, supported by nine ultrasonic probes integrated into the test wheel. The probes can be activated or deactivated individually. The trolley can operate in either direction and capture optional surface images during inspections. An all-round maintenance service based in Leipzig provides servicing and inspection.

Conclusion

The mobile ultrasonic testing trolley represents an advancement in technology and ergonomics for ultrasonic testing within rail networks.

Company Summary

DB InfraGO: Approved the use of the mobile ultrasonic testing trolley for rail inspection.

DB Systemtechnik: Issued compliance verification for the mobile ultrasonic testing trolley.

Deutsche Bahn: The trolley is approved for deployment across Deutsche Bahn’s network.

Fraunhofer Institute for Ceramic Technologies and Systems (IKTS): Developed the trolley in partnership.

Leipzig: Location of the all-round maintenance service for the trolley.

Technology

LTE/WiFi: Data transfer options for the trolley.

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