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December 11, 2025Nature CommunicationsOpen Access

Vacuum-gap electrostatic multilayer actuators for space robotics

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Authors

ISIon-Dan SîrbuAMArianna MazzottaUTUbaldo Tosi

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Overview

New actuators show improved performance in vacuum for space robotics, implying potential applications in future missions.

Key Points

  • The goal is to develop electrostatic actuators that function effectively in vacuum environments for space robotics.
  • Introduction of electrostatic actuators utilizing dielectric properties of the vacuum
  • Demonstration of actuator performance metrics such as stroke length and force
  • Testing with standard space polymers for compatibility with space applications
  • Actuators achieving millimeter-range strokes and forces exceeding 4 N
  • Demonstrated bandwidth of over 100 Hz and peak power-to-mass ratios of 1.4 kW kg⁻¹
  • Actuators made from standard space polymers, enabling direct-drive actuation in vacuum

Cite This Study

Sîrbu et al. (2025) studied this question.

synapsesocial.com/papers/694019342d562116f28f6ed5https://doi.org/10.1038/s41467-025-66232-7
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