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Design and Test of a Soft Plantar Force Measurement System for Gait Detection
State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shaanxi 710049, China
* Author to whom correspondence should be addressed.
Received: 29 September 2012; in revised form: 23 November 2012 / Accepted: 26 November 2012 / Published: 3 December 2012
Abstract: This work describes a plantar force measurement system. The MEMS pressure sensor, as the key sensing element, is designed, fabricated and embedded into a flexible silicon oil-filled bladder made of silicon rubber to constitute a single sensing unit. A conditioning circuit is designed for signal processing and data acquisition. The characteristics of the plantar force sensing unit are investigated by both static and dynamic tests. A comparison of characteristics between the proposed plantar force sensing unit and a commercial flexible force sensor is presented. A practical experiment of plantar force measurement has been carried out to validate the system. The results demonstrate that the proposed measurement system has a potential for success in the application of plantar force measurement during normal gait.
Keywords: MEMS; plantar force; gait detection; flexible
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Zhang, X.; Zhao, Y.; Duan, Z.; Liu, Y. Design and Test of a Soft Plantar Force Measurement System for Gait Detection. Sensors 2012, 12, 16628-16640.
Zhang X, Zhao Y, Duan Z, Liu Y. Design and Test of a Soft Plantar Force Measurement System for Gait Detection. Sensors. 2012; 12(12):16628-16640.
Zhang, Xuefeng; Zhao, Yulong; Duan, Zhengyong; Liu, Yan. 2012. "Design and Test of a Soft Plantar Force Measurement System for Gait Detection." Sensors 12, no. 12: 16628-16640.