Fibre composite parts can be damaged inside without any visible sign. For monitoring, waves are sent through the part and measured. On curved parts this requires many measuring positions around the circumference.
- Setting: research on structural health monitoring, Otto von Guericke University Magdeburg
- Tools: 3D CAD, stepper motor control, Polytec measurement software
My contribution
- Design and construction: shaft, bearings, gearing, slip ring
- Selection and programming of the stepper motor control
- Connection to the vibrometer software: rotation in defined angular steps, a measurement after each step
Outcome
- Fully automated measurement cycles around the whole circumference instead of manual repositioning
- A low-cost setup that can be extended with further axes