Angular Displacement Measurement Using Optical Sensor

광학센서를 이용한 관절운동각도 측정

  • 정구인 (건국대 의학공학과, 건국대 의공학 실용 기술연구소) ;
  • 김지선 (건국대 의학공학과, 건국대 의공학 실용 기술연구소) ;
  • 허동훈 (가톨릭대학 여의도성모병원 의공학팀) ;
  • 유환동 (서울아산병원 의공학팀) ;
  • 임성환 (건국대학교 의학공학부) ;
  • 최주현 (건국대학교 의학공학부) ;
  • 이정환 (건국대 의학공학부, 건국대 의공학 실용 기술연구소) ;
  • 엄광문 (건국대 의학공학부, 건국대 의공학 실용 기술연구소) ;
  • 전재훈 (건국대학교 의학공학부, 건국대 의공학 실용 기술연구소)
  • Received : 2011.05.18
  • Accepted : 2011.08.31
  • Published : 2011.10.01


Measuring the movement of joint angle of human body is very important clinically. Human joint angle displacement can be used to evaluate the degree of disease and disability. Also, we can determine the rehabilitation process with angular information. Conventional methods for measuring angular displacement are many weakness. The purpose of this study is to overcome the limitations of existing equipments by using optical method. For this reason, optical sensor system was used to correlate detected light signal with joint angle. Experimental results of the applied joint model in this study showed that joint angular displacement can be measured by optical signals. The suggested method is simple, durable, small, lightweight, convenient, and cost effective.


Supported by : 건국대학교


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