Experimental Study on the Application of BOTDA in the Overlying Strata Deformation Monitoring Induced by Coal Mining

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/js/volume-2019/3439723/figures/3439723.fig.004a.svgz" name="3439723.fig.004a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Vertical fiber layout real picture</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/js/volume-2019/3439723/figures/3439723.fig.004b.svgz" name="3439723.fig.004b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Vertical fiber spatial location</td></tr></table>

<div>Optical fiber sensor layout pattern.</div>

Journal of Sensors

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Figure 4

Figure 4: Experimental Study on the Application of BOTDA in the Overlying Strata Deformation Monitoring Induced by Coal Mining 