Study of a Space-Time Monitoring of High-Speed Railway Underline Structure Using Distributed Optical Vibration Sensing Technology

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Measuring distance</td><td class="align_center">1∼40 km</td></tr><tr><td class="align_left">Positioning accuracy</td><td class="align_center">±8∼20 meters</td></tr><tr><td class="align_left">Detection rate</td><td class="align_center">&gt;97%</td></tr><tr><td class="align_left">False alarm rate</td><td class="align_center">&lt;3%</td></tr><tr><td class="align_left">Communication interface</td><td class="align_center">Network interface, RS232, USB</td></tr><tr><td class="align_left">Operating voltage</td><td class="align_center">AC100∼40 V, 50∼60 Hz</td></tr><tr><td class="align_left">Working power</td><td class="align_center">&lt;30 W</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Main technical indicators of the DOVS technology system (fiber optic sensing analyzer).</div>

Shock and Vibration

tab3

Table 3

Table 3: Study of a Space-Time Monitoring of High-Speed Railway Underline Structure Using Distributed Optical Vibration Sensing Technology 