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Erschienen in:
11.06.2021
Insights into theoretical and practical characteristics of capacitive flexible tactile sensor based on spherical surface plate
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 13/2021
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Abstract
To improve the sensing sensitivity of electronic skin, a new type of capacitive flexible tactile sensor based on spherical surface plate is proposed with implementation. The fabrication process and the structure of the sensors are illustrated and characterized, respectively. The mechanism of tactile perception is elaborated by the theoretical calculation and complementary ANSYS finite element simulation. In addition, a capacitive tactile signal acquisition and processing system are built up to complete the characteristics test and application research of the developed sensors. The experimental results show that the capacitive flexible tactile sensor based on the spherical surface plate could achieve the high sensitivity and stability of the normal force and tangential force with a fast response time of 70 ms. Such developed sensors show a great potential to work as electronic skin with demonstrated capability characteristics.