Fractional-Order Control of a Micrometric Linear Axis

<table>PD-PDD<sup>1/2</sup> comparison: tracking error in case of set point with trapezoidal speed law (PD: <svg height="15.95" id="M184" style="vertical-align:-2.55255pt" version="1.1" viewbox="0 0 50.275002 15.95" width="50.275002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>; PDD<sup>1/2</sup>: <svg height="17.2125" id="M185" style="vertical-align:-3.56265pt" version="1.1" viewbox="0 0 143.1875 17.2125" width="143.1875" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>).</table>

Journal of Control Science and Engineering

Fractional-Order Control of a Micrometric Linear Axis

Figure 15