HapSense: A Soft Haptic I/O Device with Uninterrupted Dual Functionalities of Force Sensing and ...
summary
A compact device uses PBDF ferroelectric electroactive polymer in a multilayer stack to combine single-volume soft haptic I/O with concurrent vibrotactile actuation and capacitance-based force sensing. Prototypes reach 5 × 5 × 0.7 mm minimum, 2 mm bending radius, drive up to 350 V from a 3.7 V battery at ~300–600 mW, and detect pressure from 0–45 kPa sensing range with perceptible vibration above ≈150 V threshold. User tests show different trigger-force preferences on rigid versus body mounts; durability over many cycles remains uncharacterized.
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chapters (9)
- 0:00Introduction and motivation
- 1:11Proposed PVDF-based solution
- 3:02Fabrication process
- 5:05System design and principles
- 6:45Operational modes and power
- 8:36Device performance evaluation
- 10:27User study and design factors
- 13:18Applications and use cases
- 14:54Future work and Q&A
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