A novel force sensitive resistor wheatstone bridge for prosthesis control

Kyle A. Schroeder, Juan De La Fuente, Thomas Sugar, Thierry Flaven

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Control of prosthetic devices should be robust and intuitive. In this work a simple, robust, and intuitive method for opening and closing a prosthetic hand for transradial amputations is proposed. The method utilizes force sensitive resistors (FSR) in a sleeve around the residual forearm. Contracting the muscles to open or close the hand changes the shape of the forearm and the force on the FSR sensors. A novel Wheatstone bridge configuration of the sensors simplifies and expediates the calibration. Using all four FSRs as the resistors of the Wheatstone bridge, the system is relatively insensitive to sensor location. To calibrate the sensor, the user opens and closes the hand a few times. The method was demonstrated in simulation on two unamputated individuals opening and closing the hand. To demonstrate the robustness of the method, the sleeve was removed and replaced so that the FSR locations and the calibration is different, but the system is still functional.

Original languageEnglish (US)
Title of host publication38th Mechanisms and Robotics Conference
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume5B
ISBN (Electronic)9780791846377
DOIs
StatePublished - 2014
EventASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2014 - Buffalo, United States
Duration: Aug 17 2014Aug 20 2014

Other

OtherASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2014
CountryUnited States
CityBuffalo
Period8/17/148/20/14

ASJC Scopus subject areas

  • Modeling and Simulation
  • Mechanical Engineering
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design

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  • Cite this

    Schroeder, K. A., De La Fuente, J., Sugar, T., & Flaven, T. (2014). A novel force sensitive resistor wheatstone bridge for prosthesis control. In 38th Mechanisms and Robotics Conference (Vol. 5B). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/DETC201434452