Abstract
We discuss the design and performance of a new haptic surface capable of controlling shear force on a bare finger. At the heart of the ShiverPaD is the TPaD variable friction device. It modulates the friction of a glass surface by using 39 kHz out-of-plane vibrations to reduce friction. To generate shear forces, the TPaD is oscillated in-plane (i.e., shivered) while alternating between low and high friction within each cycle. In previous research, the ShiverPaD produced shear forces using in-plane vibrations below 100 Hz. In this research, we develop a new ShiverPaD that produces force using 854 Hz vibrations, where human sensitivity to vibration is diminished. The new device is used to display a virtual toggle switch and a variety of virtual edges. A human subject study is conducted to demonstrate that users can easily trace virtual edges displayed on the surface of the ShiverPaD.
Original language | English (US) |
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Article number | 5438990 |
Pages (from-to) | 189-198 |
Number of pages | 10 |
Journal | IEEE Transactions on Haptics |
Volume | 3 |
Issue number | 3 |
DOIs | |
State | Published - 2010 |
Keywords
- Haptics
- tactile interface
- variable friction
ASJC Scopus subject areas
- Human-Computer Interaction
- Computer Science Applications