Abstract
The end effector is crucial for handling and manipulating objects with a space manipulator during on-orbit service. In this paper, a new self-adaptive impedance controller for an underactuated two-finger gripper is proposed based on tactile sensing. The impedance controller makes the finger appear as mechanical impedance when it touches an unknown object. In particular, the impedance stiffness parameter can be adjusted using the stiffness recognition of tactile sensing in real time. Thus, there is no switching mode between motion in free space and the capture process, and the gripper can self-adapt the capture force to different stiffness of objects. Finally, a terrestrial experimental setup is established to validate the efficiency of the proposed controller for the gripper.
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Chu, Z., Ma, Y., Zhou, M., Sun, F. (2017). Experiment on Self-adaptive Impedance Control of Two-Finger Gripper with Tactile Sensing. In: Sun, F., Liu, H., Hu, D. (eds) Cognitive Systems and Signal Processing. ICCSIP 2016. Communications in Computer and Information Science, vol 710. Springer, Singapore. https://doi.org/10.1007/978-981-10-5230-9_28
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DOI: https://doi.org/10.1007/978-981-10-5230-9_28
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