摘要 |
A force sensor having a compressible layer, an electrically grounded layer and an electrically active layer is disclosed. The electrically active layer comprises a transmitter electrode configured to capacitively couple to a receiver electrode. The compressible layer is compressible to allow the electrically grounded layer to move closer to the electrically active layer, so as to reduce the level of capacitive coupling between the receiver electrode and the transmitter electrode in dependence upon the magnitude of an applied force. |