ON THE DESIGN OF INTELLIGENT INSOLES USING PVDF FILM
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- 英文论文题名：ON THE DESIGN OF INTELLIGENT INSOLES USING PVDF FILM
- 论文作者：Jian ZHANG ; Yun WANG
- 英文论文作者：Jian ZHANG ; Yun WANG ; School of Mechanical Engineering ; Hangzhou Dianzi University
- 年：2016
- 作者机构：School of Mechanical Engineering, Hangzhou Dianzi University;
- 英文论文关键词：Plantar pressure measurement ; Multi-point simultaneous measurement ; PVDF piezoelectric thin film
- 会议召开时间：2016-10-21
- 会议录名称：2016年全国压电和声波理论及器件应用研讨会论文摘要集
- 英文会议录名称：Abstract Book of 2016 Symposium on Piezoelectricity, Acoustic Waves and Device Applications
- 语种：英文
- 分类号：TB383.2;TP212
- 学会代码：AGLU
- 会议名称：2016年全国压电和声波理论及器件应用研讨会
- 会议地点：中国陕西西安
- 主办单位：中国力学学会、中国声学学会、IEEE UFFC分会
- 学会名称：中国力学学会
- 页数：2
- 文件大小：89k
- 原文格式：D
- 会议级别：全国
摘要
Background, Motivation and Objective In recent decades, with the development of sensor technology and the rapid popularization of computer technology, the plantar pressure measurement has become increasingly important in the field of biomechanics gait research. Plantar pressure distribution measurement technology was initialized since 1882 and developed internationally in 1950 s. It was paid more attention in 1980 s domestically. The measurement of the pressure on the foot of the athletes is very important to correct the incorrect movement and to improve their performance. In addition, plantar pressure measurement is of great significance to the footwear industry, and medical test and treatment of diabetics. Statement of Contribution/Methods This work proposed an intelligent insole device using PVDF piezoelectric thin film to measure the plantar pressure. For widely frequency response problems of flexible sensors, multilayer core structure was adopted to enhance output signal of the film sensor. And hard diaphragm was also embedded between the piezoelectric film and the flexible insole to improve the elastic hysteresis of flexible sensor. The signal of the sensor was sampled and processed by the signal system composed of the preamplifier circuit and the power frequency filter circuit. Results The output voltage of the single-layer and double-layer PVDF piezoelectric thin films were tested respectively. The results showed that under the same pressure, the double-layer structure can increase the electrical signal generated by the piezoelectric sensor and therefore easier to measure. PVC material with high elastic modulus and small elastic hysteresis, adhesion to the bottom surface of the PVDF thin film can effectively block the influence of flexible insole on thin film. Discussion and Conclusions Double-layer PVDF piezoelectric film accessed circuit in series connection, the sensor signal amplitude can be enhanced to the double of the original. Multi-point synchronous measurement sensor designed in this paper, can extract plantar pressure distribution parameters in real time. The experiment showed the data collected was stable and reliable. The whole "intelligent insole" device was portable, practical and stable.
Background, Motivation and Objective In recent decades, with the development of sensor technology and the rapid popularization of computer technology, the plantar pressure measurement has become increasingly important in the field of biomechanics gait research. Plantar pressure distribution measurement technology was initialized since 1882 and developed internationally in 1950 s. It was paid more attention in 1980 s domestically. The measurement of the pressure on the foot of the athletes is very important to correct the incorrect movement and to improve their performance. In addition, plantar pressure measurement is of great significance to the footwear industry, and medical test and treatment of diabetics. Statement of Contribution/Methods This work proposed an intelligent insole device using PVDF piezoelectric thin film to measure the plantar pressure. For widely frequency response problems of flexible sensors, multilayer core structure was adopted to enhance output signal of the film sensor. And hard diaphragm was also embedded between the piezoelectric film and the flexible insole to improve the elastic hysteresis of flexible sensor. The signal of the sensor was sampled and processed by the signal system composed of the preamplifier circuit and the power frequency filter circuit. Results The output voltage of the single-layer and double-layer PVDF piezoelectric thin films were tested respectively. The results showed that under the same pressure, the double-layer structure can increase the electrical signal generated by the piezoelectric sensor and therefore easier to measure. PVC material with high elastic modulus and small elastic hysteresis, adhesion to the bottom surface of the PVDF thin film can effectively block the influence of flexible insole on thin film. Discussion and Conclusions Double-layer PVDF piezoelectric film accessed circuit in series connection, the sensor signal amplitude can be enhanced to the double of the original. Multi-point synchronous measurement sensor designed in this paper, can extract plantar pressure distribution parameters in real time. The experiment showed the data collected was stable and reliable. The whole "intelligent insole" device was portable, practical and stable.
Background, Motivation and Objective In recent decades, with the development of sensor technology and the rapid popularization of computer technology, the plantar pressure measurement has become increasingly important in the field of biomechanics gait research. Plantar pressure distribution measurement technology was initialized since 1882 and developed internationally in 1950 s. It was paid more attention in 1980 s domestically. The measurement of the pressure on the foot of the athletes is very important to correct the incorrect movement and to improve their performance. In addition, plantar pressure measurement is of great significance to the footwear industry, and medical test and treatment of diabetics. Statement of Contribution/Methods This work proposed an intelligent insole device using PVDF piezoelectric thin film to measure the plantar pressure. For widely frequency response problems of flexible sensors, multilayer core structure was adopted to enhance output signal of the film sensor. And hard diaphragm was also embedded between the piezoelectric film and the flexible insole to improve the elastic hysteresis of flexible sensor. The signal of the sensor was sampled and processed by the signal system composed of the preamplifier circuit and the power frequency filter circuit. Results The output voltage of the single-layer and double-layer PVDF piezoelectric thin films were tested respectively. The results showed that under the same pressure, the double-layer structure can increase the electrical signal generated by the piezoelectric sensor and therefore easier to measure. PVC material with high elastic modulus and small elastic hysteresis, adhesion to the bottom surface of the PVDF thin film can effectively block the influence of flexible insole on thin film. Discussion and Conclusions Double-layer PVDF piezoelectric film accessed circuit in series connection, the sensor signal amplitude can be enhanced to the double of the original. Multi-point synchronous measurement sensor designed in this paper, can extract plantar pressure distribution parameters in real time. The experiment showed the data collected was stable and reliable. The whole "intelligent insole" device was portable, practical and stable.
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