A Multifunctional Approach for Flexion Angular Measurement

Abstract

The paper presents a novel approach for flexion angle measurement based on the multifunctional technology, which is different from previous works with respect of its ability of measuring obliquity and bending direction simultaneously with a single structure. A flexible tube is utilized to imitate the status of skin on the elbow whose length varies with different gesture. Its flexible and compact character permits the biomechanical application and easy substitutional ability. Two angular parameters are converted to the linear movements of three iron wires, which are measured using inductive principle. We herein discuss the sensing structure, its geometric analysis, and the reconstructed equations. The estimated results of the built prototype prove the feasibility of the proposed approach.