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arXiv Robotics — research abstracts· Xianlong Mai, Rui Yu, Rui Chen, Daniele Leonardis, Wenbo Li, Domenico Chiaradia, Antonio Frisoli, Shuaishuai Sun·· 2 days agoSignalEditorial score75

Compact and Wide-Force-Range Magnetorheological Hand Exoskeleton for Kinesthetic Feedback in Teleoperation

Compact and Wide-Force-Range Magnetorheological Hand Exoskeleton for Kinesthetic Feedback in Teleoperation

Summary

This paper introduces a hand exoskeleton system using magnetorheological (MR) brakes to provide wide-range kinesthetic feedback during teleoperation. The device, weighing only 39.8 g, delivers braking torque from 0.01 to 0.918 Nm and renders fingertip forces up to 21 N with a back-driving force of 1.01 N. Experimental results show that the system enables users to discriminate object stiffness using kinesthetic feedback alone. In tele-grasping tasks, kinesthetic feedback achieved a 100% success rate and reduced object contact force by 28.2% compared to visual-only feedback, enhancing safety and immersion. Questionnaire data further indicate improvements in reliability, realism, and user confidence.

Editorial context

The study presents a compact magnetorheological hand exoskeleton that achieves a wide force feedback range (0.01 to 0.918 Nm torque) and demonstrates improved object stiffness discrimination and reduced contact forces in tele-grasping tasks compared to visual-only feedback.

Source: arXiv Robotics — research abstracts · Read original article ↗

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What the source reports

Publisher-reported claims, with original evidence. These results have not been independently verified by RoboSignal.

Control
TeleoperatedOpen source S2

Reported numbers

  • braking torque range

    0.01–0.918

    View original evidence
    mpact and wearable design. This paper presents a hand exoskeleton system employing magnetorheological (MR) brakes to provide a wide range kinesthetic feedback during teleoperation. The MR brake provides a braking torque ranging from 0.01 to 0.918 Nm, while maintaining a compact structure with a total mass of only 39.8 g. The proposed exoskeleton can render fingertip forces up to 21 N while maintaining back-driving fo
    Open source S3
  • total mass

    39.8

    View original evidence
    mpact and wearable design. This paper presents a hand exoskeleton system employing magnetorheological (MR) brakes to provide a wide range kinesthetic feedback during teleoperation. The MR brake provides a braking torque ranging from 0.01 to 0.918 Nm, while maintaining a compact structure with a total mass of only 39.8 g. The proposed exoskeleton can render fingertip forces up to 21 N while maintaining back-driving fo
    Open source S3
  • fingertip force

    ≤21

    View original evidence
    mpact and wearable design. This paper presents a hand exoskeleton system employing magnetorheological (MR) brakes to provide a wide range kinesthetic feedback during teleoperation. The MR brake provides a braking torque ranging from 0.01 to 0.918 Nm, while maintaining a compact structure with a total mass of only 39.8 g. The proposed exoskeleton can render fingertip forces up to 21 N while maintaining back-driving fo
    Open source S3
  • Reported success rate

    100%

    Reported trials

    View original evidence
    rce of 1.01 N. Experimental results show that the system allows users to discriminate object stiffness using kinesthetic feedback alone. In a tele-grasping task, when both conditions achieved a 100% success rate, kinesthetic feedback led to a 28.2% reduction in object contact force compared to visual feedback only, enhancing object safety and operator immersion. Questionnaire results further indicate that kinesthetic
    Open source S4
  • paper: not_reported

What remains unknown

Not established in the collected evidence: Environment, Data origin.

Reported performance applies to the described task. It does not establish general autonomy or deployment readiness.

Source excerpts and review record

Automatically extracted; no manual editorial approval recorded.

arXiv:2611.12130v1 Announce Type: new Abstract: Hand kinesthetic feedback is crucial for restoring and enhancing human perception of force and displacement in robotic hand teleoperation. Wide perception range of force feedback is vital in rendering objects of different stiffness, especially for high-stiffness rendering. However, existing approaches struggle to achieve wide range of force feedback while maintaining co

Open source S2

mpact and wearable design. This paper presents a hand exoskeleton system employing magnetorheological (MR) brakes to provide a wide range kinesthetic feedback during teleoperation. The MR brake provides a braking torque ranging from 0.01 to 0.918 Nm, while maintaining a compact structure with a total mass of only 39.8 g. The proposed exoskeleton can render fingertip forces up to 21 N while maintaining back-driving fo

Open source S3

rce of 1.01 N. Experimental results show that the system allows users to discriminate object stiffness using kinesthetic feedback alone. In a tele-grasping task, when both conditions achieved a 100% success rate, kinesthetic feedback led to a 28.2% reduction in object contact force compared to visual feedback only, enhancing object safety and operator immersion. Questionnaire results further indicate that kinesthetic

Open source S4

Source:arXiv Robotics — research abstracts · arxiv.org

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