The device was tested on a TIRA TV 51120 electrodynamic
shaker with an ADXL203 accelerometer attached to measure the
applied acceleration. Three different mounting configurations were
tested: vertical, 15◦ angle offset, and 30◦ angle offset. The mounting
for vertical and 30◦ angle offsets are shown in Fig. 5. As shown in the
figure, the acceleration was always applied in the same direction
relative to the mounting platform. It was not applied in the direction
of the device, but at an angle to the device. Also, the amplitude
of acceleration was not adjusted to apply the stated acceleration
in the direction of the device. For example, when the device was