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정구인(Gu-in Jung),김지선(Ji-Sun Kim),허동훈(Dong-Hun Hur),유환동(Hwan-Dong Yu),임성환(Sung-Hwan Lim),최주현(Ju-Hyeon Choi),이정환(Jeong-Hwan Lee),엄광문(Gwang-Moon Eom),전재훈(Jae-Hoon Jun) 대한전기학회 2011 전기학회논문지 Vol.60 No.10
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.