Plantar Pressure Detection with Fiber Bragg Gratings Sensing System
<p>Schematic illustration of foot pressure distribution of (<b>a</b>) flat foot; (<b>b</b>) neutral foot; (<b>c</b>) cavus foot; and (<b>d</b>) supinated foot of left footprint when standing.</p> "> Figure 2
<p>The configuration of the fiber sensing system for plantar pressure measurement.</p> "> Figure 3
<p>The reflection wavelength spectrum of six FBGs without any stress.</p> "> Figure 4
<p>Foot plantar pressure distribution of participants: (<b>a</b>) No. 2; (<b>b</b>) No. 6; (<b>c</b>) No. 8; (<b>d</b>) No. 10; (<b>e</b>) No. 11, by i-Step P1000 digital pressure plate.</p> "> Figure 4 Cont.
<p>Foot plantar pressure distribution of participants: (<b>a</b>) No. 2; (<b>b</b>) No. 6; (<b>c</b>) No. 8; (<b>d</b>) No. 10; (<b>e</b>) No. 11, by i-Step P1000 digital pressure plate.</p> "> Figure 5
<p>The six sensing area definitions in this research.</p> "> Figure 6
<p>Set-up of FBG sensors and test in action.</p> "> Figure 7
<p>The plantar pressure distribution of the neutral feet of participant No. 2: (<b>a</b>) Footprint; (<b>b</b>) central wavelength shift as a function of sensing area number.</p> "> Figure 8
<p>The plantar pressure distribution of the cavus feet of participant No. 6: (<b>a</b>) Footprint; (<b>b</b>) central wavelength shift as a function of sensing area number.</p> "> Figure 9
<p>The plantar pressure distribution of the flat feet of participant No. 8: (<b>a</b>) Footprint; (<b>b</b>) central wavelength shift as a function of sensing area number.</p> "> Figure 10
<p>The plantar pressure distribution of supinated feet of participant No. 10: (<b>a</b>) Footprint; (<b>b</b>) central wavelength shift as a function of sensing area number.</p> "> Figure 11
<p>The plantar pressure distribution of participant No. 11, whose left foot is cavus and right foot is neutral: (<b>a</b>) Footprint; (<b>b</b>) central wavelength shift as a function of sensing area number.</p> "> Figure 12
<p>The central wavelength shift as a function of sensing area number for plantar pressure distribution of left and right foot: (<b>a</b>) Flat feet; (<b>b</b>) supinated feet; (<b>c</b>) cavus feet; and (<b>d</b>) neutral feet.</p> "> Figure 13
<p>The central wavelength shift of six FBGs corresponding to the plantar pressure value of i-Step P1000.</p> ">
Abstract
:1. Introduction
2. General Description and Fiber-Optic Sensor Configuration
3. Methods and Results
3.1. Subjects
3.2. Plantar Foot Sensing Area Definition
3.3. Experimental Results
3.4. Sensing Stability
3.5. Statistical Verification
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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No. | Foot Type | |
---|---|---|
Left | Right | |
1 | neutral | neutral |
2 | neutral | neutral |
3 | neutral | neutral |
4 | cavus | cavus |
5 | cavus | cavus |
6 | cavus | cavus |
7 | cavus | cavus |
8 | flat | flat |
9 | flat | flat |
10 | supinated | supinated |
11 | cavus | neutral |
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Liang, T.-C.; Lin, J.-J.; Guo, L.-Y. Plantar Pressure Detection with Fiber Bragg Gratings Sensing System. Sensors 2016, 16, 1766. https://doi.org/10.3390/s16101766
Liang T-C, Lin J-J, Guo L-Y. Plantar Pressure Detection with Fiber Bragg Gratings Sensing System. Sensors. 2016; 16(10):1766. https://doi.org/10.3390/s16101766
Chicago/Turabian StyleLiang, Tsair-Chun, Jhe-Jhun Lin, and Lan-Yuen Guo. 2016. "Plantar Pressure Detection with Fiber Bragg Gratings Sensing System" Sensors 16, no. 10: 1766. https://doi.org/10.3390/s16101766