Characterization and Modelling of Circular Piezoelectric Micro Speakers for Audio Acoustic Actuation

Main parameters calculated after <svg height="9.875" id="M93" style="vertical-align:-2.29482pt" version="1.1" viewbox="0 0 14.65 9.875" width="14.65" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,9.875)">
<g transform="translate(72,-64.1)">
<text transform="matrix(1,0,0,-1,-71.95,66.44)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑠</tspan>
<tspan style="font-size: 12.50px; " x="5.5013199" y="0">𝑝</tspan>
</text>
</g>
</g>
</svg> and <svg height="7.1875" id="M94" style="vertical-align:-0.13794pt" version="1.1" viewbox="0 0 15.2375 7.1875" width="15.2375" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,7.1875)">
<g transform="translate(72,-66.25)">
<text transform="matrix(1,0,0,-1,-71.95,66.44)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑎</tspan>
<tspan style="font-size: 12.50px; " x="6.2765059" y="0">𝑐</tspan>
</text>
</g>
</g>
</svg> analyses versus each of the independent variables: frequency, piezoelectric layer thickness, and transducer radius, keeping in each case two of them constant from values <svg height="13.6125" id="M95" style="vertical-align:-2.34499pt" version="1.1" viewbox="0 0 43.8125 13.6125" width="43.8125" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,13.6125)">
<g transform="translate(72,-61.11)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑓</tspan>
<tspan style="font-size: 12.50px; " x="10.402496" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="22.442884" y="0">1</tspan>
<tspan style="font-size: 12.50px; " x="28.694386" y="0">0</tspan>
</text>
</g>
</g>
</svg> kHz, <svg height="14.6" id="M96" style="vertical-align:-3.13504pt" version="1.1" viewbox="0 0 60.125 14.6" width="60.125" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.6)">
<g transform="translate(72,-60.32)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑡</tspan>
</text>
<text transform="matrix(1,0,0,-1,-68.04,60.37)">
<tspan style="font-size: 8.75px; " x="0" y="0">P</tspan>
<tspan style="font-size: 8.75px; " x="4.8748641" y="0">Z</tspan>
<tspan style="font-size: 8.75px; " x="10.231088" y="0">E</tspan>
</text>
<text transform="matrix(1,0,0,-1,-48.49,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="12.040389" y="0">8</tspan>
<tspan style="font-size: 12.50px; " x="18.291889" y="0">0</tspan>
</text>
</g>
</g>
</svg> um, and <svg height="10.6875" id="M97" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 38.887501 10.6875" width="38.887501" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.6875)">
<g transform="translate(72,-63.45)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑅</tspan>
<tspan style="font-size: 12.50px; " x="12.715551" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="24.755939" y="0">1</tspan>
</text>
</g>
</g>
</svg> cm.

International Scholarly Research Notices

tab2

Table 2

Table 2: Characterization and Modelling of Circular Piezoelectric Micro Speakers for Audio Acoustic Actuation 