• Title/Summary/Keyword: Five-axis force/moment sensor

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Development of Multi-Axis Force/Moment Sensor for Stroke Patient's Hand Fixing System Control (뇌졸중 환자의 손 고정장치 제어를 위한 다축 힘/모멘트센서 개발)

  • Kim, H.M.;Kim, J.W.;Kim, G.S.
    • Journal of Sensor Science and Technology
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    • v.20 no.5
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    • pp.351-356
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    • 2011
  • Stroke patients should exercise for the rehabilitation of their fingers, because they can't use their hand and fingers. Their hand and fingers are fixed on the hand fixing system for rehabilitation exercise of them. But the hands clenched the fist of stroke patients are difficult to fix on it. In order to fix the hands and fingers, their palms are pressed with pressing bars and are controlled by reference force. The fixing system must have a five-axis force/moment sensor to force control. In this paper, the five-axis force/moment sensor was developed for the hand fixing system of finger-rehabilitation exercising system. The structure of the five-axis force/moment sensor was modeled, and designed using finite element method(FEM). And it was fabricated with strain-gages, then, its characteristic test was carried out. As a result, the maximum interference error is less than 2.43 %.

Hand Pressing Control Using the Five-Axis Force/Moment Sensor of Finger Rehabilitation (손가락 재활로봇의 5축 힘/모멘트센서를 이용한 손 누름제어)

  • Kim, Hyeon-Min;Kim, Gab-Soon
    • Journal of Sensor Science and Technology
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    • v.21 no.3
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    • pp.192-197
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    • 2012
  • This paper describes the control of the hand fixing system attached to the finger rehabilitation robot for the rehabilitation exercise of patient's fingers. The finger rehabilitation robot is used to exercise the finger rehabilitation, and a patient's hand is safely fixed using the hand fixing system. In this paper, the hand fixing system was controlled with PD gains to fix a palm of the hand, and the characteristic test for the hand fixing system was carried out to sense the fixed hand movement of the front and the rear, that of the left and the right, and that of the upper. It is thought that the hand fixing system could safely fix the hand, and the movement of the fixed hand could be perceived using the five-axis force/moment sensor attached to the hand fixing system.

Development of Cylindrical-object Grasping Force Measuring System with Haptic Technology for Stroke's Fingers (햅틱기술을 이용한 뇌졸중환자의 원통물체잡기 힘측정장치 개발)

  • Kim, Hyeon Min;Kim, Gab Soon
    • Journal of the Korean Society for Precision Engineering
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    • v.30 no.3
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    • pp.300-307
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    • 2013
  • This paper describes the development of a cylindrical-object grasping force measuring system applied haptic technology to measure the grasping force of strokes patients' fingers and other patients' paralyzed fingers. Because the cylindrical-object and the force measuring device of the developed cylindrical-object grasping force measuring system are connected with the electrical wires, patients and their families have difficulty not only measuring the patients' grasping force using the system but also knowing their rehabilitation extent when using it. In this paper, the cylindrical-object grasping force measuring system applied haptic technology was developed, and the cylindrical-object grasping force measuring device sends data to the rehabilitation evaluating system applied haptic technology by wireless communication. The grasping force measurement characteristic test using the system was carried out, and it was confirmed that the rehabilitation extent of the patients' paralyzed fingers and normal people fingers can be evaluated.

Development of Hand and Fingers Fixing System for Stroke Patient's Rehabilitation Exercise (뇌졸중 환자의 손가락 재활운동을 위한 손 및 손가락 고정장치 개발)

  • Kim, Hyeon-Min;Kim, Gab-Soon
    • Journal of the Korean Society for Precision Engineering
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    • v.29 no.7
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    • pp.753-761
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    • 2012
  • This paper describes development of a hand and finger fixing system for the rehabilitation exercise of patient's fingers. In order to exercise the finger rehabilitation using a finger rehabilitation robot, a patient's hand or fingers are fixed safely. In this paper, The hand and fingers fixing system can safely fix stroke patient's hand and fingers by pressing with force control system. The characteristic test of the system was carried out. It is thought that the system could be used for fixing their fingers in stroke patient's finger rehabilitation exercise.