Research Article
Haptic Stylus and Empirical Studies on Braille, Button, and Texture Display
Table 4
Experimental results for force feedback (%).
| | Force feedback | | 1 | 2 | 3 | 4 | 5 |
| | Group I | 1 | 95.0 | 2.5 | — | 2.5 | — | | 2 | — | 75.0 | 5.0 | 12.5 | 7.5 | | 3 | 7.5 | 5.0 | 85.0 | 2.5 | — | | 4 | — | — | 5.0 | 95.0 | — | | 5 | 15.0 | 2.5 | — | — | 82.5 |
| | Group II | 1 | 82.5 | 2.5 | 7.5 | 7.5 | — | | 2 | 2.5 | 67.5 | — | 12.5 | 17.5 | | 3 | 12.5 | 10.0 | 75.0 | — | 2.5 | | 4 | — | 12.5 | — | 82.5 | 5.0 | | 5 | 2.5 | 20.0 | 5.0 | 12.5 | 60.0 |
| | Group III | 1 | 55.0 | 15.0 | 12.5 | 17.5 | — | | 2 | 22.5 | 60.0 | 15.0 | — | 2.5 | | 3 | 25.0 | 7.5 | 55.0 | 12.5 | — | | 4 | 7.5 | 5.0 | 10.0 | 67.5 | 10.0 | | 5 | 7.5 | 15.0 | — | 12.5 | 65.0 |
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