Optically Instrumented Insole for Gait Plantar and Shear Force Monitoring

被引：13
作者：
Tavares, Catia [1 ,2 ,3 ]
Leite, Flavia [1 ,2 ,3 ]
Domingues, Maria De Fatima [3 ]
Paixao, Tiago [1 ,2 ]
Alberto, Nelia [3 ]
Ramos, Antonio [4 ]
Silva, Hugo [5 ,6 ]
Antunes, Paulo Fernando Da Costa [1 ,2 ,3 ]
机构：
[1] Univ Aveiro, Dept Phys, Campus Univ Santiago, P-3810193 Aveiro, Portugal
[2] Univ Aveiro, Inst Nanostruct Nanomodelling & Nanofabricat I3N, Campus Univ Santiago, P-3810193 Aveiro, Portugal
[3] Univ Aveiro, Inst Telecomunicacoes, Campus Univ Santiago, P-3810193 Aveiro, Portugal
[4] Univ Aveiro, Dept Mech Engn, Ctr Mech Technol & Automat, Campus Univ Santiago, P-3810193 Aveiro, Portugal
[5] Univ Lisboa IST UL, Inst Super Tecn, P-1049001 Lisbon, Portugal
[6] PLUX Wireless Biosignals SA, P-1050059 Lisbon, Portugal
来源：
IEEE ACCESS | 2021年 / 9卷
关键词：
Foot plantar sensor; gait cycle anomalies; multiplexed fiber Bragg gratings; pressure ulcers; shear force sensor; PRESSURE MEASUREMENT SYSTEM; STRESS; SENSORS;
D O I：
10.1109/ACCESS.2021.3115472
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this work, a fiber Bragg gratings (FBGs) based sensing insole, capable of simultaneously measure plantar force (PF) and shear force (SF) is proposed. The insole has four measuring points, strategically located for a full gait analysis. Each sensing point contains a sensor-cell which consists of a polylactic acid (PLA) structure, covered by an epoxy resin layer, and crossed by one optical fiber with two FBGs, FBG1 and FBG2, respectively. Due to the specific design of the system, the FBG1 is sensitive to both forces (with higher sensitivity to the PF), while the FBG2 is designed to detect only the SF. The instrumented insole was tested during static and gait exercises, and the results, obtained for the PF and SF monitoring, were according to those theoretically expected.
引用
收藏
页码：132480 / 132490
页数：11
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