KRATOS Robot

Autonomous NDT Weld Inspections

KRATOS is a magnetic-coupling robotic platform used for high-precision Ultrasonic NDT weld inspections. Designed to navigate metallic surfaces omnidirectionally with surgical accuracy, it offers a faster, safer and more cost-effective alternative to traditional platform-based inspections.

By integrating an Olympus PAUT system with a 16:128 channel configuration, KRATOS performs advanced NDT using both Phased Array and Time-of-Flight Diffraction (TOFD) technologies to detect surface and subsurface weld defects with microscopic precision. Every inspection is calibrated on-site by certified UT experts, ensuring total data integrity and regulatory compliance.

This inspection provides the critical insights required for informed life-extension planning and long-term structural asset management.

FAQ´s

What type of couplant liquid does the KRATOS robot use?

The system utilizes clean water as the acoustic couplant. This ensures an eco-friendly operation that leaves a clean tower.

Is it necessary to stop the wind turbine to perform this inspection?

Yes. It is necessary to stop the turbine during the time that inspections are performed.

How long does it take to perform a weld inspection with KRATOS?

The inspection time depends mainly on the height of the tower and number of welds seams. On average, an inspection of 8 welds can be achieved within 2 to 3 hours.

Could this inspection cause any damage to the tower?

No. Using NDT ultrasound equipment and rubber wheels on the robotic platform, it navigates the tower´s surface without compromising protective coating or structural integrity.

Does the system include a safety mechanism?

Yes. KRATOS features a safety tethering system anchored to the top of the nacelle, ensuring the device remains securely in position under normal operating conditions and during unexpected events. This system works synchronously with the robot, continuously monitoring its status at all times.