Finger-Mounted Tactile Sensor for Evaluating Surfaces
Finger-Mounted Tactile Sensor for Evaluating Surfaces
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DOI：
10.20965/jrm.2012.p0430
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发表时间：
2012-06-01
影响因子：
1.1
通讯作者：
Yamamoto, Motoji
中科院分区：
文献类型：
--
作者：
Kikuuwe, Ryo;Nakamura, Kenta;Yamamoto, Motoji
本文提出了一种手指安装的触觉传感器，用于提取物体（如纺织品）的精细表面特性的信息。原型传感器具有由PVDF（聚偏二氟乙烯）膜传感器片和用于将压缩力转换成PVDF膜的面积膨胀的一些金属部件组成的薄结构。通过使用基于FFT（快速傅立叶变换）的信号处理程序，即使在存在由用户的手部运动的波动引起的摩擦运动的按压力和速度的变化的情况下，也可以区分来自九种不同织物的电压信号序列。此外，从磨损的织物的信号序列进行排序，通过提取与磨损水平相关的信号分量的磨损水平。
This paper presents a finger-mounted tactile sensor for extracting information on fine surface properties of objects such as textile fabrics. The prototype sensor has a thin structure composed of a sheet of PVDF (polyvinylidene fluoride) film sensor and some metal parts for converting compressive forces into area expansion of the PVDF film. By using a signal processing program based on the FFT (fast Fourier transform), voltage signal sequences from nine different fabrics were distinguished, even in the presence of variations in the pressing force and the speed of rubbing motion induced by the fluctuations in the user's hand motion. In addition, the signal sequences from abraded fabrics were sorted by their levels of abrasion by extracting a signal component correlated with the abrasion level.