Fig. 6

THz measurement set up and the results. From left to right we see the PicoBot measuring the ROI followed by THz pulses and occlusion curves recorded. Each of the two volunteers was measured three times in each of the four locations. Each measurement lasted for the 60 s. The setup and results are shown for measurements performed on the (a) volar forearm (b) forehead (c) cheek and (d) fingers of a human volunteer. The shaded error bars represent the standard deviations from the mean value for each set of three measurements. The human participant’s face has been replaced with a photo of the manikin being measured for anonymity.