Alternative Text Description of Figure 3: Repeatability testing plot (clockwise and counterclockwise)
This graph shows the result of the repeatability testing that was done on the sensor. Figure 3a and Figure 3b show the repeatability testing in the clockwise direction of the 2 channels of the sensor. Four trials were performed: trial 1 and 2 at thirty second intervals between measurements, trial 3 and 4 at 5 five minute intervals. Figure 3c and Figure 3d show the repeatability testing plot in the counterclockwise direction for the 2 channels of the sensor. Two trials were done with thirty second intervals between measurements. All the different trials are plotted with different symbols. There was a close agreement between all of the trials for a given subgraph.