Table 1 Comparison of different tactile sensor skins.
From: Artificially innervated self-healing foams as synthetic piezo-impedance sensor skins
Sensors | Single substrate with single electrode layer | Sensing mechanism | Normal force | Shear force | Proximity sensing | Sensitivity (pressure range) | Self-healing | Reference |
|---|---|---|---|---|---|---|---|---|
AiFoam | √ | R & C | √ | √ | √ | R: 0.0982 kPa−1 (P < 10 kPa) C: 0.378 kPa−1 (P < 10 kPa) | √ | This work |
Hill and micro-pyramidal structure | N | C | √ | √ | N | 0.19 kPa−1 (P < 1 kPa) | N | |
Hairy skin electronics | N | R | √ | √ | N | 0.25 kPa−1 (P < 100 kPa) | N | |
3D microelectromechanical sensor | N | R | √ | √ | N | ~0.08 kPa−1 (P < 50 kPa) | N | |
Laminated structure with four electrodes | N | C | √ | √ | N | 0.53 kPa−1 (0.5 < P < 2 kPa) | N | |
Bump on sensor | N | R | √ | √ | N | ~0.0065 kPa−1 (P < 270 kPa) | N | |
Multifunctional matrix network | N | C | √ | - | √ | 0.0224 kPa−1 (P < 16 kPa) | N |
