Development of Miniaturized Fiber-Optic Laser Doppler Velocimetry Sensor for Measuring Local Blood Velocity: Measurement of Whole Blood Velocity in Model Blood Vessel Using a Fiber-Optic Sensor with a Convex Lens-Like Tip

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="426476.fig.009a" src="https://static.hindawi.com/articles/js/volume-2012/426476/figures/426476.fig.009a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Using He-Ne laser</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="426476.fig.009b" src="https://static.hindawi.com/articles/js/volume-2012/426476/figures/426476.fig.009b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Using laser diode (<svg height="10.9375" id="M22" style="vertical-align:-0.20064pt" version="1.1" viewbox="0 0 51.412498 10.9375" width="51.412498" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.9375)">
<g transform="translate(72,-63.25)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝜆</tspan>
<tspan style="font-size: 12.50px; " x="10.227454" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="22.267843" y="0">8</tspan>
<tspan style="font-size: 12.50px; " x="28.519342" y="0">3</tspan>
<tspan style="font-size: 12.50px; " x="34.770844" y="0">0</tspan>
</text>
</g>
</g>
</svg> nm)</td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="426476.fig.009c" src="https://static.hindawi.com/articles/js/volume-2012/426476/figures/426476.fig.009c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>Influence of hematocrit</td></tr></table></td></tr></table>

<table>Blood flow velocity profiles in model vessel.</table>

Journal of Sensors

fig9

Figure 9

Figure 9: Development of Miniaturized Fiber-Optic Laser Doppler Velocimetry Sensor for Measuring Local Blood Velocity: Measurement of Whole Blood Velocity in Model Blood Vessel Using a Fiber-Optic Sensor with a Convex Lens-Like Tip 

Figure 9 | Development of Miniaturized Fiber-Optic Laser Doppler Velocimetry Sensor for Measuring Local Blood Velocity: Measurement of Whole Blood Velocity in Model Blood Vessel Using a Fiber-Optic Sensor with a Convex Lens-Like Tip 