Nematic opto-mechanical actuators for the fabrication of refreshable tactile systems

2013 Transducers & Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII) Pub Date : 2013-06-16 DOI:10.1109/TRANSDUCERS.2013.6627111

N. Torras, K. Zinoviev, C. Camargo, E. Campo, H. Campanella, J. Esteve, J. Marshal, E. Terentjev, M. Omastová, I. Krupa, P. Teplický, B. Mamojka, P. Burns, B. Roder, M. Vallribera, R. Malet, S. Zuffanelli, V. Soler, J. Roig, N. Walker, D. Wenn, F. Vossen, F. Crompvoets

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引用次数: 8

Abstract

Nematic elastomers are promising materials for the fabrication of actuators due to their ability to reversibly contract and expand during phase transitions triggered by external stimuli. We present a refreshable tactile system based on the opto-mechanical properties of liquid-crystalline elastomers (LCE) composites, with the capability to represent Braille characters and graphic information. The actuators designed are based on the stress gradient generated in the elastomer under illumination to exert a force on movable components. Hardware implementation and communication software interface were developed too to provide end users with a complete solution. First tests prove not only the viability of the device, but also the potential applications of this type of actuators.

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用于制造可刷新触觉系统的向列式光机械致动器

向列弹性体是制造执行器的有前途的材料，因为它们能够在外部刺激触发的相变中可逆地收缩和膨胀。我们提出了一种基于液晶弹性体(LCE)复合材料光力学性能的可刷新触觉系统，具有表示盲文字符和图形信息的能力。设计的致动器是根据弹性体在光照下产生的应力梯度对可动部件施加力。开发了硬件实现和通信软件接口，为最终用户提供了完整的解决方案。第一次测试不仅证明了该装置的可行性，而且还证明了这种类型的执行器的潜在应用。

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2013 Transducers & Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII)

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