Development of a Directional Vibrator Using Shape-Memory Alloy Wires
Yuto Kawahara, Renke Liu, Hideyuki Sawada · MDPI AG · 2026
This paper proposes a compact directional vibrator using Shape-Memory Alloy wires for enhanced haptic feedback in virtual and augmented reality applications.
Plain English summary
Why this matters
Key findings
- The device generates two-dimensional directional acceleration.
- Acceleration can be adjusted through the duty ratio at a fixed frequency.
- The vibrator uses four SMA wires to suspend a moving part.
- It can target eight directions spaced at 45° intervals.
- The device offers continuous vibration rather than single-shot impacts.
What's new
The proposed device allows for continuous directional vibration control using a compact design with Shape-Memory Alloy wires, addressing limitations of existing haptic devices.
Limitations
The perceptual evaluation of the presented direction is not included and is left for future work.
Commercial context
The device is still in the experimental phase and requires further evaluation and development before commercial application.
Publication
- Publisher
- MDPI AG
- Publication date
- July 8, 2026
- Research type
- Paper
- License
- https://creativecommons.org/licenses/by/4.0/
Tags
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