In these tests, two
accelerometers, one on the top box and the other on the bottom box, were attached on the boxes as
seen in Figure 1. These accelerometers were intended for measurement of the acceleration PSD of
each box. In Figure 1, the box in the lower right corner is empty and is just provided for supporting the
I‐Scan handle. Dynamic tests were performed to understand the dynamic load distribution in the
contact area between the two boxes and to determine the effect of different excitation frequencies on
the system performance. These tests were also intended for a study of the data acquisition performance
of the I‐Scan system.