Measurement Accuracy Analysis of Distributed Fiber Optic Sensors for Asphalt Mixture Based on the DEM-FDM Coupled Method

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Parameter</td><td class="align_center">Specification</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Spatial resolution</td><td class="align_center">2.6 mm</td></tr><tr><td class="align_left">Sampling frequency</td><td class="align_center">250 Hz</td></tr><tr><td class="align_left">Strain measurement range</td><td class="align_center">±12,000 <i>με</i></td></tr><tr><td class="align_left">Strain resolution</td><td class="align_center">1 <i>με</i></td></tr><tr><td class="align_left">Instrument strain accuracy</td><td class="align_center">±1 <i>με</i></td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The technical specifications of the OFDR device.</div>

Structural Control and Health Monitoring

tab5

Table 5

Table 5: Measurement Accuracy Analysis of Distributed Fiber Optic Sensors for Asphalt Mixture Based on the DEM-FDM Coupled Method 