damping term $\beta_f$. For overdamped cantilevers with large values
of $\beta$, the peak frequency will not have a real solution.%
%
-\nomenclature{$f_\text{max}$}{The frequency of the peak power in
+\nomenclature[sr ]{$f_\text{max}$}{The frequency of the peak power in
$\PSD_f$ (\cref{eq:peak-frequency}).}
\subsection{Propagation of errors}