| 摘要 |
A pressure mat 10 and a method of operating it. The mat 10 comprises a first conductive layer 12, a resistive layer 14 whose resistance changes in proportion to the pressure applied to the resistive layer and an electrical circuit connected to the first conductive layer and/or the resistive layer and arranged to detect the change in resistance in the resistive layer. The mat may further comprise a spacer 18 located in-between the first conductive layer and the resistive layer. The spacer may be in direct contact with the first conductive layer and the resistive layer. The pressure mat may comprise a second conductive layer on the outside of the resistive layer. The first conductive layer may comprise two independent conductors. The spacer may comprise a plurality of apertures. The apertures may be arranged in a regular pattern and the apertures may all be the same size or may differ in size. |
