Table 2 Results of curvature amplitude \({\tilde{A}}\) and spatial period \({\tilde{T}}\) estimated using the haptic sensor when only the spatial period is changed, and the respective error rates
\({\tilde{A}}\) (1/m) | \({\tilde{T}}\) (mm) | Conventional sensor | Proposed sensor | ||||||
|---|---|---|---|---|---|---|---|---|---|
Estimated \({\tilde{A}}\) | Error (%) | Estimated \({\tilde{T}}\) | Error (%) | Estimated \({\tilde{A}}\) | Error (%) | Estimated \({\tilde{T}}\) | Error (%) | ||
3.95 | 10 | 1.85 | 53.2 | 9.84 | 1.7 | 4.26 | 8.02 | 9.26 | 1.8 |
3.95 | 20 | 1.70 | 57.0 | 18.2 | 9.7 | 4.57 | 15.8 | 18.2 | 9.7 |
3.95 | 40 | 1.45 | 63.3 | 37.6 | 6.5 | 3.80 | 3.67 | 37.6 | 6.5 |