Development of a haptic system for grasp force control of underactuated prosthetics hands

Hyun Sang Lim, Hyo Chan Kwon, Kwon Hee Kim

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)

    Abstract

    Underactuated prosthetic hands are relatively light and economical. In this work, an economical grasping force control system is proposed for underactuated prosthetic hands with adaptive grasp capability. The prosthetic hand is driven by a main cable based on a set of electromyography sensors on the forearm of a user. Part of the main cable tension related to grasping force is fed back to the user by a skin-mounted vibrator. The proper relationship between the grasping force and the vibrator drive voltage was established and prototype tests were performed on a group of users. Relatively accurate grasping force control was achieved with minimal training of users.

    Original languageEnglish
    Pages (from-to)415-420
    Number of pages6
    JournalTransactions of the Korean Society of Mechanical Engineers, A
    Volume41
    Issue number5
    DOIs
    Publication statusPublished - 2017 May

    Bibliographical note

    Publisher Copyright:
    © 2017 The Korean Society of Mechanical Engineers.

    Keywords

    • Feedback Control
    • Grasp Force
    • Prosthetic Hand
    • Underactuated Mechanism

    ASJC Scopus subject areas

    • Mechanical Engineering

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