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. Author manuscript; available in PMC: 2019 Sep 1.
Published in final edited form as: Biomed Phys Eng Express. 2018 Aug 7;4(5):055014. doi: 10.1088/2057-1976/aad627

Fig. 1.

Fig. 1

(a) LabVIEW Code for PID Controller downloaded to NI-USB-7855R and (b) Electrical diagram of the current source part for one output. It shows the connection from the analog output (X1_AO0) of NI-USB-7855R to the current input (COIL_OUTPUT_X1+) of one coil installed on the outer surface of MSR.