Experimental Study on Slope Deformation Monitoring Based on a Combined Optical Fiber Transducer

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Material of transducer</td><td class="align_center">PVC</td><td class="align_center">EPS </td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">Maximum (%)</td><td class="align_center">18</td><td class="align_center">15.3</td></tr><tr><td class="align_left">Minimum (%)</td><td class="align_center">2.23</td><td class="align_center">3.12</td></tr><tr><td class="align_left">Average (%)</td><td class="align_center">7.5</td><td class="align_center">5.68</td></tr><tr><td class="align_left">Mean square deviation</td><td class="align_center">4.24</td><td class="align_center">3.17</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Error analysis of the measured displacement by inclinometer and calculated displacement by formula (<a href="https://static.hindawi.com/articles/js/volume-2017/7936089/figures/#EEq3">3</a>) of <svg height="8.8423pt" id="M50" style="vertical-align:-0.2064009pt" version="1.1" viewbox="-0.0498162 -8.6359 8.8162 8.8423" width="8.8162pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M645 631C614 643 545 666 457 666C215 666 23 519 23 283C23 90 158 -16 337 -16C412 -16 489 2 522 10C543 39 590 127 606 167L580 181C519 89 459 18 348 18C201 18 122 136 122 287C122 464 244 632 435 632C544 632 602 595 608 472L639 475C643 526 645 581 645 631Z" id="g113-68"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="668" vert-adv-y="668"></glyph.data></g></svg> at sliding surface.

Journal of Sensors

tab4

Table 4

Table 4: Experimental Study on Slope Deformation Monitoring Based on a Combined Optical Fiber Transducer 