We previously proposed a new 3D form display actuated by shape memory alloy (SMA), which is capable of displaying large scale objects sequentially. Based on our devised method, our display uses a 16 16 array of pin-rods with 30mm stroke at 5mm intervals. In this paper, we discuss the control method of the shape memory alloy with a simple matrix drive circuit. This type of drive circuit can dramatically reduce the number of switch. In addition, we propose a novel approach using linear programming, where the simulated time to display a whole shape is reduced by about 50% or more with a large number of actuators.
Recent advances in vision-based tactile sensation have given rise to a novel class of high-performance sensing devices that measure traction fields (i.e. distributions of 3-D force vectors) with density comparable to the biological sense of touch. While this has been-an emerging trend in robotics, it introduces diverse new possibilities for human-computer interaction as well. We describe how to apply computer vision techniques to measure the traction field applied to the surface of a silicone body, and discuss the potential of using the computed vector distribution as a rich and versatile interface for interactive desktop applications.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.