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) |
|---|---|
| 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 |
Funding
The authors would like to acknowledge the US National Science Foundation (NSF) (grant IIS-0941581) and a gift from Research in Motion Ltd for support of this work. Thanks go to Daniel C. Johnson for his help in the design and construction of the finger positioning system.
Keywords
- Haptics
- tactile interface
- variable friction
ASJC Scopus subject areas
- Human-Computer Interaction
- Computer Science Applications