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Feasibility Study on Fiber-Optic Goniometer for Measuring Knee Joint Angle
- Authors
- Kim, Seon Geun; Jang, Kyoung Won; Yoo, Wook Jae; Shin, Sang Hun; Cho, Seunghyun; Lee, Bongsoo
- Issue Date
- Sep-2014
- Publisher
- OPTICAL SOC JAPAN
- Keywords
- fiber-optic sensor; goniometer; knee joint angle
- Citation
- OPTICAL REVIEW, v.21, no.5, pp.694 - 697
- Journal Title
- OPTICAL REVIEW
- Volume
- 21
- Number
- 5
- Start Page
- 694
- End Page
- 697
- ISSN
- 1340-6000
- Abstract
- In this study, we fabricated a fiber-optic goniometer using a plastic optical fiber, a light-emitting diode, and a photodiode. The cladding of the plastic optical fiber was removed at 0.5-3mm intervals regularly to increase the bending loss of the plastic optical fiber. Also, the output voltages of the photodiode based on light intensity that measured using the fiber-optic goniometer were measured light intensities using the fiber-optic goniometer were measured to evaluate the linearity of the fiber-optic goniometer. Finally, we measured the responses of the fiber-optic goniometer for gait speeds of 3, 5, and 10 km/h using a data acquisition board and a LabVIEW program. (C) 2014 The Japan Society of Applied Physics
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Related Researcher
- Cho, Seung hyun
- College of Engineering (Department of Materials Science and Engineering)