Soft and flexible haptic feedback device with shape memory alloy
Haptic feedback systems are a crucial technology for improving immersion in augmented and virtual reality applications, especially those requiring intricate finger motions. However, existing technologies are 20 typically limited by rigid and bulky equipment that can degrade wearability while providing insufficiently nuanced tactile sensations.
In this project, we developed a lightweight and flexible finger-worn haptic device that provides controllable and nuanced cutaneous feedback. The device consists of four serpentine shape memory alloy structures in opposing pairs that manipulate a tactor, creating both individual and collective actuation patterns.
In total, it can implement eleven distinctive motions for a variety of haptic sensations.
Relevant Papers
A flexible skin-mounted haptic interface for multimodal cutaneous feedback
Accepted in Nature Electronics