\par The amplitude of oscillations was measesult was displayed on the electronic control box.
\par The control box contained inputs as shown in Figure 3.
\begin{figure}[!bht]
    \centering 
    \includegraphics[width = \textwidth]{box.png}
    \caption{The rear panel of the control box.(cited from lab 5 manual edited by  Qin Tian, Wang Yin, Mateusz Krzyzosiak)}
\end{figure}
\subsection{Pre
\par The measuring system mainly consist}s of the det\bdel{ector and its co}ntrol box with the precision 
\begin{table}[htbp]
    \centering
    \begin{tabular}{cc}
        \toprule
        \multicolumn{1}{l}{Equipment} & \multicolumn{1}{l}{Resolution}\\
        \midrule
        Pohl resonator (period) & 0.001s \\
        Pohl resonator (phase lag) & 1$^\circ$ \\
        Pohl resonator (amplitude) & 1$^\circ$ \\
        \bottomrule
    \end{tabular}
    \caption{Meacisions.}
\end{table}

\par The amplitude of oscillations was measesult was displayed on the electronic control box.
\par The control box contained inputs as shown in Figure 3.
\begin{figure}[!bht]
    \centering 
    \includegraphics[width = \textwidth]{box.png}
    \caption{The rear panel of the control box.(cited from lab 5 manual edited by  Qin Tian, Wang Yin, Mateusz Krzyzosiak)}
\end{figure}
\subsection{Pre
\par The measuring system mainly consist}s of the det\bdel{ector and its co}ntrol box with the precision 
\begin{table}[htbp]
    \centering
    \begin{tabular}{cc}
        \toprule
        \multicolumn{1}{l}{Equipment} & \multicolumn{1}{l}{Resolution}\\
        \midrule
        Pohl resonator (period) & 0.001s \\
        Pohl resonator (phase lag) & 1$^\circ$ \\
        Pohl resonator (amplitude) & 1$^\circ$ \\
        \bottomrule
    \end{tabular}
    \caption{Meacisions.}
\end{table}