초록 |
As the importance of human-robot interaction increases, the development of electronic skin is essential to give robots a level of tactile perception similar to humans. In order to achieve that level of tactile perception, it is very important to highly integrate the tactile sensor. Recently, various studies have been investigated to fabricate multi-functional tactile sensors by recognizing two or more senses. However, these sensors are analog signal-based sensors, and it is difficult to directly interact with humans without computer modeling or additional circuitry. In this study, a tactile sensor based on a digital signal is shown by mimicking a mechanoreceptor in which the frequency of the spike signal changes according to the pressure applied to the skin. A spike signal output device could be fabricated by combining a mechanical oscillator using a micro-solenoid and a triboelectric material. |