Wireless tactile sensing element using stress-sensitive resonator
Wireless tactile sensing element using stress-sensitive resonator
复制标题
使用应力敏感谐振器的无线触觉传感元件
DOI：
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复制
发表时间：
2000
期刊：
影响因子：
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通讯作者：
Hideki Oasa
中科院分区：
文献类型：
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作者：
H. Shinoda;Hideki Oasa
与人类一起工作的机器人需要柔软的传感器皮肤来覆盖整个身体。在本文中，我们提出了一种实现这种皮肤的新方法。通过将无线传感元件植入弹性体中，我们获得了具有弹性且坚韧且可自由塑形的传感器皮肤。该元件是无源谐振器芯片，其谐振频率反映了芯片周围的应力。谐振频率由位于皮肤底部的接地线圈读出。该芯片由三个功能部分组成：用于通过无线耦合接收和传输电力的线圈、对应力敏感的电容以及提供高 Q 值谐振的陶瓷谐振器。陶瓷谐振器带来的高品质因数使人们能够区分大量芯片，并高精度地感应应力。介绍了无线信号检测的结构、方法和触觉传感的基本实验。
Robots that work with humans require a soft sensor skin to cover the entire body. In this paper, we propose a new method to realize such a skin. By implanting wireless sensing elements in an elastic body, we obtain an elastic and tough sensor skin which is able to be shaped freely. The element is a passive resonator chip whose resonant frequency reflects the stress around the chip. The resonant frequency is read out by a ground coil located at the bottom of the skin. The chip is simply composed of three functional parts: a coil for receiving and transmitting electrical power with wireless coupling, capacitance sensitive to stress, and ceramic resonator to provide high-Q resonance. The high quality factor brought by the ceramic resonator enables one to distinguish a large number of chips, and to sense the stress with high accuracy. The structure, the method of wireless signal detection, and basic experiments of tactile sensing are presented.