Lifelike Mock Samples and Probes
Mock samples have been re-created from real samples from TWI’s Training School, including calibration blocks, delamination plates and butt weld samples. They were ultrasonically re-created in fine detail with 1mm and 1° resolution. Each mock sample was either machined or injection-moulded and can be projected with an unlimited number of real ones. Replica calibration blocks are used to teach the measurement of probe index points and setting sensitivity; while weld samples are used to train students on learning the echo dynamics of the flaws.
Two mock probes have been 3D printed, based on straight and angled probes and they can be projected with different frequencies and angles. Customised circuits are fitted at the bottom of the dummy probes, so that the presence of couplant can be detected. The tracking markers are fitted on top, to maximise their visibility to the cameras.
Applications and Benefits
TrainNDT can be used for NDT training, as well as to check the competency of an NDT inspector.
It offers many benefits, including:
- Flexibility in location and class sizes
- Reduction in the cost of manufacturing metallic samples with flaws
- Access to a wider range of flaws, including in-service flaws
- Sharing of live scan data
- Tracking and recording of trainee’s scanning behaviour, for example probe position and orientation
- Simple to set up and dismantle
- Ability to be permanently fixed to structures, like ceilings, in a training class room
TrainNDT is a collaboration between Applied Inspection Ltd, InnoTec UK, Eastpoint Software Ltd and TWI Ltd. TrainNDT is a result of a research project funded by Innovate UK. Reference no. 103614.