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. Author manuscript; available in PMC: 2020 Jul 1.
Published in final edited form as: IEEE Trans Med Imaging. 2019 Jan 10;38(7):1610–1621. doi: 10.1109/TMI.2019.2891774

Fig. 2.

Fig. 2.

The WRAD hardware used to measure the signals presented in this work. The slew vector sensor is constructed from 3 PCB inductors (‘Z’ on the main PCB, ‘X’ and ‘Y’ on separate PCBs) each precisely cut with slots to allow them to be mounted mutually orthogonal to each other, representing the principal axes of the WRAD co-ordinate frame (please note that the silkscreen markings XYZ define the ijk co-ordinate frame of Figure 1).