Soft Wearable Skin-Stretch Device for Haptic Feedback Using Twisted and Coiled Polymer Actuators
Soft Wearable Skin-Stretch Device for Haptic Feedback Using Twisted and Coiled Polymer Actuators
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DOI：
10.1109/toh.2019.2943154
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发表时间：
2019-10-01
影响因子：
2.9
通讯作者：
Shull, Peter B.
中科院分区：
文献类型：
--
作者：
Chossat, Jean-Baptiste;Chen, Daniel K. Y.;Shull, Peter B.
柔软和集成的设计可以使可穿戴触觉设备增强自然的人类触觉。本文提出了一种新的，柔软的，触觉的手指佩戴式设备的基础上，顺应性和粘性硅胶皮肤和轻质扭曲和盘绕聚合物（TCP）致动器，使用超高分子量聚乙烯（UHMWPE）纤维提供横向皮肤拉伸的感觉。最近，有机硅弹性体因其高顺应性或粘附性而被用于可穿戴传感器和触觉应用中。TCP致动器还表现出高功率重量比、大行程长度、简单的机构和固有的柔软性。外侧皮肤拉伸对小运动敏感，并且已经用于直观的本体感受反馈应用。我们结合这些特点，设计和制造一个可穿戴的，功能性触觉原型。原型的性能进行了评估，使用光学跟踪系统，测力计测试台，并与14名健康参与者的实验中的振动触觉反馈。结果显示，参与者的平均反应时间与振动触觉反馈系统的反应时间相当，尽管任务完成时间更长。本文是第一个采用TCP致动器的触觉刺激，并可以作为未来的应用，涉及软可穿戴触觉在游戏，健康和虚拟现实的基础。
Soft and integrated design can enable wearable haptic devices to augment natural human taction. This paper proposes a novel, soft, haptic finger-worn wearable device based on compliant and adhesive silicone skin and lightweight twisted and coiled polymer (TCP) actuators using ultra high molecular weight polyethylene (UHMWPE) fibers to provide lateral skin stretch sensations. Recently, silicone elastomers have been used in wearable sensors and in haptic applications for their high compliance or adhesion. TCP actuators have also demonstrated high power to weight ratios, large stroke length, simple mechanism, and inherent softness. Lateral skin stretch is sensitive to small motions and has been used for intuitive proprioceptive feedback applications. We combined these characteristics to design and manufacture a wearable, functional haptic prototype. Prototype performance was evaluated using an optical tracking system, a force gauge test bench, and compared to vibrotactile haptic feedback in a experiment with 14 healthy participants. Results showed that participant mean reaction times were comparable to those of a vibrotactile feedback system, though task completion times were longer. This paper is the first to employ TCP actuators for haptic stimulation and could serve as a foundation for future applications involving soft wearable haptics in gaming, health, and virtual reality.