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. Author manuscript; available in PMC: 2022 Feb 18.
Published in final edited form as: IEEE ASME Trans Mechatron. 2021 Mar 9;27(1):407–417. doi: 10.1109/tmech.2021.3064954

Fig. 4.

Fig. 4.

The upper image is the proximal end of the handle assembly, which contains the tuning and matching circuits for the proximal and distal MR-Tracking coils. The lower images are the S11 plots of the distal and proximal MRT coils, as seen on a Vector Network Analyzer, after tuning and matching the circuitry. The resonance occurred at 63.8 MHz (the Larmor frequency of the Siemens 1.5T scanner).