Computer Assisted System to Help in Developing Capacitive Touch Sensing Applications

Using the properties of capacitors, touch can be used as an enormously effective technique of input and control, but is a challenge when it comes to large-sized touch electrodes especially those with complex shapes because they impose electrical and industrial constrains on the designer. This paper addresses the design of a computerized system to help in selecting the right parameters of the sensing system and computing the effect of them in addition to the insulation materials effect on the touch detection algorithm and sensitivity of the system and that is extremely useful in case of electrodes having large size and/or complex shape.