| Sensing Concept | Product | Company |
|---|---|---|
| Inductive | 1 | Aidin Robotics |
| Air pressure | AirSkinTM | Blue Danube Robotics |
1 T. D. Nguyen, T. S. Kim, J. Noh, H. Phung, H. R. Choi and G. Kang, “Skin-type proximity sensor by using the change of electromagnetic field,” in IEEE Transactions on Industrial Electronics.
Tests show that the sensor can detect humans from up to 30 centimeters away. It has an accuracy of 90 percent when on a flat surface. However, the electric and magnetic fields become weaker and more dispersed when the sensor is laid over
a curved surface. Therefore, the sensor’s accuracy decreases as the underlying surface becomes increasingly curved.