Abstract: A tactile array sensor comprises an array of substantially parallel row conductors disposed upon an alumina substrate. An array of substantially parallel column conductors overlies the array of row conductors and a layer of insulative material is disposed between the row conductors and the column conductors. A conductive rubber sheet overlies the column conductors. A multiplexing circuit addresses the row and column conductors and, when an object is in contact with an area of the conductive sheet, the circuit generates output signals indicative of all crossing points within the area, due to electrical contact being made between the row and column conductors via the conductive sheet.