The Time-Space Joint Response Characteristics of AE-UT under Step Loading and Its Application

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/sv/volume-2018/6210594/figures/6210594.fig.008a.svgz" name="6210594.fig.008a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Layout of sensors at the longwall face</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/sv/volume-2018/6210594/figures/6210594.fig.008b.svgz" name="6210594.fig.008b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Detailed AE-UT sensors arrangement</td></tr></table>

<div>The AE-UT joint monitoring prospect in the coal seam.</div>

Shock and Vibration

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Figure 8

Figure 8: The Time-Space Joint Response Characteristics of AE-UT under Step Loading and Its Application 