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김성국(Seong Guk Kim),조영근(Young Kuen Cho),고창용(Chang-Yong Ko),류제청(Jeicheong Ryu),김동현(Donghyung Kim),황동현(Dong Hyung Hwang),송예은(Ye Eun Song),김한성(Han Sung Kim) 대한전자공학회 2015 대한전자공학회 학술대회 Vol.2015 No.6
Measuring shear force is important for investigating the pathology and prevention of pressure ulcers. In this study, we introduced a bi-axial shear transducer as a new shear sensor. The sensor is consisted of aluminum and polyvinyl chloride plates placed between quadrangular aluminum plates. The shear force on the interface between the human body and a stand-up wheelchair was measured during sitting or standing movements. Shear forces on the sacrum and ischium were almost five times higher than those on other sites during experiments periods. In conclusion, the proposed shear sensor may be reliable and useful for measuring the shear force on human?machine interfaces.