Electrical impedance

Related papers: 20

About

Electrical impedance, in the context of robotics and AI, refers to a system's dynamic resistance to motion or force — characterized by its mechanical stiffness, damping, and inertia properties. Rooted in the analogy between electrical and mechanical systems, impedance control is a foundational robotics technique that governs how a robot regulates the relationship between its applied forces and resulting motion, rather than controlling either force or position alone. This approach is critical when robots interact physically with their environments or with humans, as it allows compliant, safe, and adaptable behavior during contact. In practice, impedance control is implemented in robotic manipulators, exoskeletons, and collaborative robots to enable smooth transitions between free motion and constrained contact, force tracking, and variable stiffness actuation. Its importance grows in human-robot interaction, rehabilitation robotics, and dexterous manipulation, where rigid position control would be unsafe or impractical. Learning-based extensions allow robots to adaptively tune impedance parameters in response to task demands, mirroring how the human nervous system modulates limb stiffness to handle unstable or uncertain environments.

Top Cited Papers

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Adaptive Neural Impedance Control of a Robotic Manipulator With Input Saturation

Wei He, Yiting Dong, Changyin Sun

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Force Tracking Impedance Control of Robot Manipulators Under Unknown Environment

Seul Jung, T.C. Hsia, R.G. Bonitz

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Variable Impedance Control of Redundant Manipulators for Intuitive Human–Robot Physical Interaction

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A Series Elastic- and Bowden-Cable-Based Actuation System for Use as Torque Actuator in Exoskeleton-Type Robots

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Stable execution of contact tasks using impedance control

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On the Passivity-Based Impedance Control of Flexible Joint Robots

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Robert J. Anderson, Mark W. Spong

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Adaptive variable impedance control for dynamic contact force tracking in uncertain environment

Jinjun Duan, Yahui Gan, Ming Chen, Xianzhong Dai

Citations: 395 • 2018

Human-Like Adaptation of Force and Impedance in Stable and Unstable Interactions

Chenguang Yang, Gowrishankar Ganesh, Sami Haddadin, Sven Parusel, Alin Albu‐Schäffer, Etienne Burdet

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Arvid QL Keemink, Herman van der Kooij, Arno H. A. Stienen

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Biomimetic Tactile Sensor Array

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Series elastic actuators for high fidelity force control

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Cartesian Impedance Control of Redundant and Flexible-Joint Robots

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Learning variable impedance control

Jonas Buchli, Freek Stulp, Evangelos A. Theodorou, Stefan Schaal

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Variable impedance control of a robot for cooperation with a human

Ryojun Ikeura, Hikaru Inooka

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