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Low-Cost Graphite on Paper Pressure Sensor for a Robot Gripper with a Trivial Fabrication Process
Jarred Fastier-Wooller1,2, Toan Dinh3, Van Thanh Dau4
1Griffith School of Engineering and Built Environment, Griffith University, Gold Coast, QLD 4222, Australia. jarred.fastier-wooller@griffithuni.edu.au.
Abstract:
A flexible pressure sensor with a rudimentary, ultra-low cost, and solvent-free fabrication process is presented in this paper. The sensor has a graphite-on-paper stacked paper structure, which deforms and restores its shape when pressure is applied and released, showing an exceptionally fast response and relaxation time of ≈0.4 ms with a sensitivity of -5%/Pa. Repeatability of the sensor over 1000 cycles indicates an excellent long-term stability. The sensor demonstrated fast and reliable human touch interface, and successfully integrated into a robot gripper to detect grasping forces, showing high promise for use in robotics, human interface, and touch devices.
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