## 4 Results
### Analysis of Wire Break Events and Structural Attenuation  
The statistical parameters of the wire break signal's feature distributions and the required attenuation coefficients were determined through laboratory experiments. Figure 12 illustrates the features of the wire break events for each sensor position, with corresponding annotations added within the figure to facilitate the allocation of the sensor number to the structural component. The statistical parameters are summarized in Tables 2 and 3. The parameters were calculated only for selected sensors based on the observations below. Figure 11: Correlation between blade pitch angle and signal features amplitude in decibel, energy in an engineering unit, and spectral centroid in kilohertz highlighted as moving average of the maxima for (**a**) sensor 3 (transition piece) and (**b**) sensor 7 (foundation). The amplitudes are shown in the upper plot of Figure 12. A bi-linear trend can be observed for sensors 1 to 8. The amplitudes initially decrease up to sensor 4, which is explained by the expected attenuation of the signals over the length of the tendon. However, the amplitudes gradually increase again at sensors 5 to 8. This behavior is less obvious for energy. The increase is interrupted at sensors 6 and 7, while sensor 8, again, shows \begin{table}
\begin{tabular}{l c c c c c c} \hline
**Structural Component** & **Sensors Evaluated** & **Feature** & \(\mu\) & \(\sigma\) & \(\mathbf{Q_{0.1}}\) & \(\mathbf{Q_{0.9}}\) \\ \hline \multirow{4}{*}{Tendon} & \multirow{4}{*}{2 and 3} & A [dB] & 134.89 & 4.55 & 128.93 & 140.32 \\  & & E [eu] & \(1.49\times 10^{12}\) & \(1.07\times 10^{12}\) & \(2.86\times 10^{11}\) & \(2.72\times 10^{12}\) \\  & & SC [kHz] & 11.60 & 3.39 & 7.31 & 15.65 \\  & & A [dB] & 93.64 & 5.16 & 85.94 & 98.07 \\ \multirow{4}{*}{Foundation} & \multirow{4}{*}{16} & E [eu] & \(1.76\times 10^{8}\) & \(1.68\times 10^{8}\) & \(3.17\times 10^{7}\) & \(2.95\times 10^{8}\) \\  & & SC [kHz] & 25.44 & 1.44 & 23.57 & 27.09 \\ \multirow{4}{*}{Transition piece} & \multirow{4}{*}{24} & A [dB] & 123.61 & 6.81 & 115.31 & 133.98 \\  & & IE [eu] & \(3.26\times 10^{11}\) & \(6.54\times 10^{11}\) & \(8.65\times 10^{9}\) & \(8.48\times 10^{11}\) \\ \cline{1-1}  & & SC [kHz] & 17.47 & 5.92 & 11.90 & 24.87 \\ \hline \end{tabular}
\end{table} 
Table 2: Statistical parameters for the signal features amplitude in decibels, energy in an engineering unit, and spectral centroid in kilohertz for evaluated sensors in different structural components. Figure 12: Statistical distribution of signal features amplitude in decibel, energy in engineering unit, and spectral centroid in kilohertz per sensor for the measured wire break events. substantial growth. It is suspected that this counter-movement starting approximately halfway along the tendon is attributed to reflections and back-scattering at the anchorage at the transition piece crossbeam on the opposite side of the cutting position. For this reason, the attenuation coefficient on the tendon is calculated only using sensors 2 to 5. During the signal transmission from the tendon to the foundation through the novel anchoring construction, there is a clear attenuation of at least 23.0 dB, with an average value of 43.6 dB. Although the break location is close to the anchor plate and sensor 16 on the crossbeam is in the immediate vicinity of the anchoring construction, the measured signals fall within the magnitude of the operational noise. As signals propagate transversely along the crossbeam, they are, in addition, significantly attenuated (see sensors 16 to 13), with an average attenuation of 5.5 dB/m, which is within the expected range for a concrete structure. It becomes evident that no sufficient signal transmission through the novel anchoring construction is possible. In comparison, the conventional anchoring between the tendon and foundation has fewer transmission zones. This case is analyzed by looking at the transmission on the other crossbeam (transition piece), whereby sensors 2 and 24 were considered.