Magneto-Haptics: Embedding Magnetic Force Feedback for Physical Interactions
summary
A design workflow converts the spatial distribution of magnetic force from arrays of permanent magnets into a computed haptic potential along a motion path, visualized in 3D and exported to OpenSCAD for 3D printing. Calculation uses an upgraded Dipole Method with GPGPU matrix ops to run about ten times faster than CPU and matches FEM results for potential. Physical prototypes are blocks with embedded magnets producing four distinct sensation profiles; a nine-person study (avg age 35.6) shows above-chance distinction and sensible sensitivity ratings.
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chapters (14)
- 0:00Introduction to Magneto-Haptics
- 1:59Concept and motivation behind magnet haptics
- 3:07Comparison with traditional haptics
- 4:52Research questions and goals
- 5:57Designing haptic sensation with magnets
- 7:59Creating Lego-like blocks with haptics
- 8:22Physics and electromagnetism basics
- 9:52Dipole Method for calculations
- 10:58Estimating haptic potential
- 13:31Speeding up calculations with GPGPU
- 13:52Validation against FEM
- 14:17User study and results
- 16:05Acknowledgments and closing
- 16:26Q&A session
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