エレクトレットを用いた触覚機能を有する人工皮膚の開発

抄録

We propose an artificial skin with a flexible thin film and a tactile function that requires no external power supply. The proposed skin is made from a lamination of an electret, an elastomer and two electrodes. The electret is a material in which electric charges are stored semi-permanently. In this study, an electret with a thickness of 15µm was made by corona discharge after dropping amorphous fluororesin on a 10µm thick copper electrode. After that, an elastomer was applied to the opposite electrode with a thickness of 20 µm. These were laminated each other to produce an artificial skin. The results of experiments in which the pressure was applied to the prototype skin showed that the detected, voltage was 2V, which was sufficient to used as a sensor for detecting the contact.