Multiresonant Frequency Piezoelectric Energy Harvesters Integrated with High Sensitivity Piezoelectric Accelerometer for Bridge Health Monitoring Applications

<table class="table-group" id="tab12"><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">Specified value</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Acceleration range</td><td class="align_center">0–2 g</td></tr><tr><td class="align_left">Resonance (bandwidth)</td><td class="align_center">20 Hz</td></tr><tr><td class="align_left">Cross-axis sensitivity</td><td class="align_center">&lt;5%</td></tr><tr><td class="align_left">Noise floor</td><td class="align_center">&lt;10 ng/<svg height="13.1484pt" id="M238" style="vertical-align:-1.3449pt" version="1.1" viewbox="-0.0498162 -11.8035 25.4142 13.1484" width="25.4142pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,-1.563)"><path d="M782 731H740L476 -79H474L280 352L133 274L151 239L242 286L473 -219L782 731Z" id="g119-37"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="764" vert-adv-y="764"></glyph.data></g><rect height="0.65243" width="15.3453" x="9.96925" y="-11.1012"></rect><g transform="matrix(.013,0,0,-0.013,9.969,0)"><path d="M729 650H468V622C546 615 554 610 554 527V365H213V527C213 610 221 616 297 622V650H38V622C120 616 128 611 128 527V123C128 39 120 34 40 28V0H303V28C221 34 213 40 213 123V322H554V123C554 39 546 34 460 28V0H728V28C647 34 639 39 639 123V527C639 610 647 615 729 622V650Z" id="g121-70"></path><glyph.data ascent="989" descent="-360" horiz-adv-x="766" vert-adv-y="766"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,19.797,0)"><path d="M387 138L374 114C336 54 316 33 240 33H141C223 167 303 295 385 423L379 437H149C112 437 100 443 94 458H73C65 415 50 352 39 314L64 305L78 332C106 388 119 403 191 403C214 403 246 403 280 403C198 270 117 142 31 15L38 0H367C382 40 399 86 413 125L387 138Z" id="g121-120"></path><glyph.data ascent="989" descent="-360" horiz-adv-x="420" vert-adv-y="420"></glyph.data></g></svg></td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Specification of the micro accelerometer integrated along with the energy harvester.

Smart Materials Research

tab12

Table 12

Table 12: Multiresonant Frequency Piezoelectric Energy Harvesters Integrated with High Sensitivity Piezoelectric Accelerometer for Bridge Health Monitoring Applications 

Table 12 | Multiresonant Frequency Piezoelectric Energy Harvesters Integrated with High Sensitivity Piezoelectric Accelerometer for Bridge Health Monitoring Applications 