Unlike with some other tactile sensor designs, capacitive-based sensors do not have significant internal wear and tear under load. Since the scale of the deflections is so small, there is little chance for â€œsetâ€ in the material, thus reducing the frequency with which capacitive sensors must be calibrated.
Precision design and manufacturing techniques allow excellent repeatability and sensitivity, while advanced conductive materials allow for conformable, stretchable, industrial, and other hybrid sensor designs. The simplicity of the capacitive sensor design gives PPS a large degree of flexibility when creating custom sensor solutions.
The following table shows a comparison of capacitive sensors versus the two other most common approaches, resistive and piezoelectric tactile sensors.