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21 March 2023 Characterizations of GaN nano-LED-based tactile sensors for robotics applications
Nathan A. Dvorak, Xili Yi, Nima Fazeli, Pei-Cheng Ku
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Proceedings Volume PC12421, Gallium Nitride Materials and Devices XVIII; (2023) https://doi.org/10.1117/12.2650479
Event: SPIE OPTO, 2023, San Francisco, California, United States
Abstract
The measurement of low-magnitude shear forces is essential for material characterization and in-hand object pose estimation for robotic applications. Previous work had demonstrated the ability to directly measure force using an optical GaN nanopillar sensor when combined with Multiphysics simulations. To investigate the accuracy of Multiphysics simulations, we use a commercially available six-axis force/torque sensor as our stress applicator with a polymer stamp mounted on the force sensing element. By investigating the accuracy of the Multiphysics simulations, we generated a mapping between applied shear force and our nanopillar tactile sensor response. We can use this mapping for robotic gripping applications.
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Nathan A. Dvorak, Xili Yi, Nima Fazeli, and Pei-Cheng Ku "Characterizations of GaN nano-LED-based tactile sensors for robotics applications", Proc. SPIE PC12421, Gallium Nitride Materials and Devices XVIII, (21 March 2023); https://doi.org/10.1117/12.2650479
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KEYWORDS
Sensors
Gallium nitride
Robotics
Light emitting diodes
Polymers
Quantum wells
Robots
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