An actuator for the tactile vest - a torso-based haptic device

被引:19
作者
Nakamura, M [1 ]
Jones, L [1 ]
机构
[1] MIT, Dept Mech Engn, Cambridge, MA 02139 USA
来源
11TH SYMPOSIUM ON HAPTIC INTERFACES FOR VIRTUAL ENVIRONMENT AND TELEOPERATOR SYSTEMS - HAPTICS 2003, PROCEEDINGS | 2003年
关键词
D O I
10.1109/HAPTIC.2003.1191305
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
Our goal is to design a robust, versatile actuator for a Tactile Vest, a wearable device that provides haptic feedback to the torso. The technology we propose to use as the actuator for this device is Nitinol, a shape memory alloy (SMA). Nitinol is capable of generating large stresses and strains, but is small and flexible and able to fit in the thin, dynamic workspace of a vest. In experimental tests conducted on the SMA, a pulse I A in amplitude and 1 s in duration produced an average displacement of 3.7 mm and peak pressures about 20 times the touch threshold for the torso. These results indicate promise in using Nitinol to create a torso-based haptic device that can generate a wide range of stimuli, yet is comfortable to the point of being invisible to the user until a stimulus occurs.
引用
收藏
页码:333 / 339
页数:7
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