# Comparison of Measurement Possibilities by Non-Invasive Reflectometric Sensors and Invasive Probes
## 3 Results  
Tables 1-6 show the permittivity readings by the different sensor types (i.e., invasive FP/mts and non-invasive S1 and S2) for the two classes of cellular concrete with different bulk moisture (400 and 600). The first column of each table shows the mass moisture \(w\), and the following columns show the individual moisture readings for each tested sample, \(\epsilon_{1}\)=\(\epsilon_{5}\)  
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Moisture \(w\) [\%]**} & \multicolumn{5}{c}{**Apparent Permititivity \(\epsilon\) [-]**} \\ \cline{2-6}  & \(\epsilon_{1}\) & \(\epsilon_{2}\) & \(\epsilon_{3}\) & \(\epsilon_{4}\) & \(\epsilon_{5}\) \\ \hline
0 & 1.18 & 1.16 & 1.14 & 1.2 & 1.18 \\
10 & 2.14 & 2.01 & 2.22 & 1.84 & 2.41 \\
20 & 5.31 & 5.82 & 5.09 & 5.42 & 5.47 \\
30 & 7.17 & 6.87 & 7.55 & 7.25 & 7.02 \\ \hline \hline \end{tabular}
\end{table}
Table 1: Results of the apparent permittivity \(\epsilon\) measurements with the FP/mts invasive probe for different values of material moisture \(w\); 400 c.c. sample.  
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Moisture \(w\) [\%]**} & \multicolumn{5}{c}{**Apparent Permititivity \(\varepsilon\) [-]**} \\ \cline{2-6}  & \(\varepsilon_{1}\) & \(\varepsilon_{2}\) & \(\varepsilon_{3}\) & \(\varepsilon_{4}\) & \(\varepsilon_{5}\) \\ \hline
0 & 3.63 & 3.73 & 3.54 & 3.44 & 3.65 \\
10 & 4.06 & 3.97 & 4.05 & 3.921 & 4.17 \\
20 & 5.00 & 5.09 & 5.05 & 5.09 & 5.09 \\
30 & 6.05 & 6.00 & 6.05 & 5.67 & 5.43 \\
40 & 7.54 & 7.53 & 7.42 & 7.77 & 7.48 \\
50 & 7.98 & 7.54 & 7.81 & 7.77 & 7.95 \\
60 & 8.94 & 9.13 & 9.07 & 8.88 & 9.21 \\
69 & 12.92 & 13.16 & 12.92 & 12.64 & 12.71 \\ \hline \hline \end{tabular}
\end{table}
Table 3: Results of the apparent permittivity \(\varepsilon\) measurements with the S2 surface sensor for different values of moisture \(w\); 400 c.c. sample.  
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Moisture \(w\) [\%]**} & \multicolumn{5}{c}{**Apparent Permititivity \(\varepsilon\) [-]**} \\ \cline{2-6}  & \(\varepsilon_{1}\) & \(\varepsilon_{2}\) & \(\varepsilon_{3}\) & \(\varepsilon_{4}\) & \(\varepsilon_{5}\) \\ \hline
0 & 1.06 & 1.07 & 1.11 & 1.22 & 1.04 \\
10 & 2.75 & 2.38 & 2.91 & 2.83 & 2.64 \\
20 & 5.48 & 5.21 & 5.84 & 5.49 & 5.65 \\
30 & 6.74 & 7.20 & 6.91 & 6.59 & 7.07 \\
40 & 11.45 & 11.31 & 10.94 & 11.24 & 11.67 \\
50 & 16.57 & 16.24 & 16.97 & 16.85 & 16.78 \\
55 & 19.20 & 20.41 & 19.48 & 20.30 & 20.21 \\ \hline \hline \end{tabular}
\end{table}
Table 4: Results of the apparent permittivity \(\varepsilon\) measurements with the FP/mts invasive probe for different values of moisture w; 600 c.c. sample.  
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Moisture \(w\) [\%]**} & \multicolumn{5}{c}{**Apparent Permititivity \(\varepsilon\) [-]**} \\ \cline{2-6}  & \(\varepsilon_{1}\) & \(\varepsilon_{2}\) & \(\varepsilon_{3}\) & \(\varepsilon_{4}\) & \(\varepsilon_{5}\) \\ \hline
0 & 3.63 & 3.73 & 3.54 & 3.44 & 3.65 \\
10 & 4.06 & 3.97 & 4.05 & 3.921 & 4.17 \\
20 & 5.00 & 5.09 & 5.05 & 5.09 & 5.09 \\
30 & 6.05 & 6.00 & 6.05 & 5.67 & 5.43 \\
40 & 7.54 & 7.53 & 7.42 & 7.77 & 7.48 \\
50 & 7.98 & 7.54 & 7.81 & 7.77 & 7.95 \\
60 & 8.