Wireless Passive High-Temperature Sensor Readout System for Rotational-Speed Measurement

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/js/volume-2021/6656527/figures/6656527.fig.002a.svgz" name="6656527.fig.002a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b><svg height="8.68572pt" id="M17" style="vertical-align:-0.0498209pt" version="1.1" viewbox="-0.0498162 -8.6359 6.71534 8.68572" width="6.71534pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M485 501C480 550 475 615 475 650H42V622C119 616 127 606 127 525V126C127 44 119 34 41 28V0H311V28C220 34 212 43 212 126V584C212 612 216 615 244 615H318C382 615 404 608 420 587C435 568 445 541 455 497L485 501Z"></path></g></svg> vs. frequency</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/js/volume-2021/6656527/figures/6656527.fig.002b.svgz" name="6656527.fig.002b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b><svg height="8.68572pt" id="M18" style="vertical-align:-0.0498209pt" version="1.1" viewbox="-0.0498162 -8.6359 6.71534 8.68572" width="6.71534pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M485 501C480 550 475 615 475 650H42V622C119 616 127 606 127 525V126C127 44 119 34 41 28V0H311V28C220 34 212 43 212 126V584C212 612 216 615 244 615H318C382 615 404 608 420 587C435 568 445 541 455 497L485 501Z"></path></g></svg> vs. couple coefficient</td></tr></table>

<div>Simulated reflection coefficient <svg height="8.68572pt" id="M11" style="vertical-align:-0.0498209pt" version="1.1" viewbox="-0.0498162 -8.6359 6.71534 8.68572" width="6.71534pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M485 501C480 550 475 615 475 650H42V622C119 616 127 606 127 525V126C127 44 119 34 41 28V0H311V28C220 34 212 43 212 126V584C212 612 216 615 244 615H318C382 615 404 608 420 587C435 568 445 541 455 497L485 501Z"></path></g></svg> versus frequency and couple coefficient, for <svg height="11.927pt" id="M12" style="vertical-align:-3.291101pt" version="1.1" viewbox="-0.0498162 -8.6359 46.5366 11.927" width="46.5366pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M541 160L512 170C485 116 462 88 439 67C411 41 376 35 318 35C272 35 238 37 224 48C207 61 205 85 212 121L290 533C305 611 308 615 391 622L397 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Journal of Sensors

fig2

Figure 2

Figure 2: Wireless Passive High-Temperature Sensor Readout System for Rotational-Speed Measurement 