Patent ID: 6374681
Filing Date: 2002-04-23
Classification: G01D,G01L

Abstract:
A multi-dimensional array of sensors for sensing a physical property, comprising:a first plurality of generally parallel electrically conductive lines providing a first set of driven electrodes, each parallel electrically conductive line of the first plurality connecting a plurality of sensors along one direction; a second plurality of generally parallel electrically conductive lines providing a second set of sensing electrodes, the sensing electrodes being at an angle to the driven electrodes, each parallel conductive line of the second plurality connecting a plurality of sensors along a second direction; a sensitive sheet material in contact with the driven and sensing electrodes, the sensitive sheet having an electrical property which varies depending upon the physical property to be measured; a shift register unit for driving the first plurality of electrically conductive lines, the shift register comprising a linear array of one-bit registers and a data input to a first one-bit register of the shift register unit for inputting a serial bit stream, an output of each one-bit register being connected to an input of the next bit register in the linear array except for the last bit register and a further output of each bit register being connected to one of the driven electrodes, for driving that electrode.