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Vol. 147, No. 12, December 2012, pp. 53-60




An Insole Device Based on Piezoelectric Sensor to Assess Plantar Pressure during Daily Human Activity
Yemin GUO

School of Agriculture and Food Engineering, Shandong University of Technology,
Zhangzhou Road, 12, Zibo 255049, Shandong Province, P. R. China

Tel.:+86-533-2786702, fax: +86-533-2786702

E-mail: gym@sdut.edu.cn



Received: 15 July 2012   /Accepted: 18 December 2012   /Published: 31 December 2012

Digital Sensors and Sensor Sysstems


Abstract: In this work, we reported the development of a novel device, integrated into an insole, to monitor plantar pressure during stand and natural walking. The device consisted of an insole with eight measure points composed of pezoelectric sensors and a wireless data transmission based on Zigbee technology incorporated into a smaller measurement unit. There were three sensors arrayed at each measurement point, and the three sensors were assembled in three different directions (3D) of X, Y and Z. Changes in the plantar pressure during standing and walking were recorded in order to validate the function of the insole device. These results showed that the measurement of plantar pressure based on the piezoelectric sensor is satisfied. The insole device can be used to monitor plantar pressure during daily living and is expected to be useful in various clinical applications.


Keywords: Insole, Device, Ceramic piezoelectric sensor, Plantar pressure



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