Interdigital Capacitive Sensor for Cable Insulation Defect Detection: Three-Dimensional Modeling, Design, and Experimental Test

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Number</td><td class="align_center">Defective cable joint (pF)</td><td class="align_center">Normal cable joint (pF)</td><td class="align_center">Capacitance difference (pF)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">1</td><td class="align_center">0.6018</td><td class="align_center">1.0532</td><td class="align_center">0.4514</td></tr><tr><td class="align_left">5</td><td class="align_center">3.4433</td><td class="align_center">4.674</td><td class="align_center">1.2307</td></tr><tr><td class="align_left">7</td><td class="align_center">2.9289</td><td class="align_center">3.3223</td><td class="align_center">0.3934</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The simulated capacitance in the defective and normal cable joint.</div>

Journal of Sensors

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Table 4

Table 4: Interdigital Capacitive Sensor for Cable Insulation Defect Detection: Three-Dimensional Modeling, Design, and Experimental Test 