Development of a flexible structural contact force sensor which obtains the contact information on the contact surface

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In this study, we have developed a flexible structural contact force sensor. A polycarbonate with vapor grown carbon fiber sheet was used to translate from pressure to electrical signals. We have arranged this material into the sensor to measure four axis contact forces. A relation between four axis contact force and output signals are identified by a learning program of neural network. We confirmed that four axis contact force can estimate appropriately by this learning program and output signals experimentally. In addition, we have developed a flexible tactile device which can detect contact points. Detection capability of contact point was confirmed experimentally.