期刊
APPLIED PHYSICS LETTERS
卷 112, 期 6, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5016385
关键词
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资金
- Pioneer Program of Korea National Research Foundation [2013M3C1A3059557]
- Electronics and Telecommunications Research Institute (ETRI) grant - Korean government [18ZS1300]
- Institute for Information & Communication Technology Planning & Evaluation (IITP), Republic of Korea [18ZS1300] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2013M3C1A3059569] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We demonstrate a robust flexible tactile actuator that is capable of working under high external pressures. The tactile actuator is based on a pyramidal microstructured dielectric elastomer layer inducing variation in both mechanical and dielectric properties. The vibrational performance of the actuator can be modulated by changing the geometric parameter of the microstructures. We evaluated the performance of the actuator under high-pressure loads up to 25 kPa, which is over the typical range of pressure applied when humans touch or manipulate objects. Due to the benefit of nonlinearity of the pyramidal structure, the actuator could maintain high mechanical output under various external pressures in the frequency range of 100-200 Hz, which is the most sensitive to vibration acceleration for human finger pads. The responses are not only fast, reversible, and highly durable under consecutive cyclic operations, but also large enough to impart perceivable vibrations for haptic feedback on practical wearable device applications. (C) 2018 Author(s).
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