Embedding and Multiplexing Large Scale Sensor Arrays for Digital Clay

Digital Clay is proposed as the next generation humanmachine communication interface with a morphing, tangible and haptic shape / surface. It is composed of a large array of hydraulic actuators in a planar pin-rod style and corresponding control system. It will be constructed using MEMS technology ultimately to satisfy the resolution, manufacturing and cost requirements. Per the ultimate objective, Digital Clay may have 10,000 to 1,000,000 actuators and, consequently, an array of sensors in large amount. In this paper the sensing system of the Digital Clay is investigated and solutions are given for current and future implementation.