Fig. 9.
Simplified diagram of the catheter in a magnetic field. Coil 1 is the square side coil. Coil 2 and 3 are the axial coils. B1 = 1.5 T. The direction of the magnetic field points right, while the direction of the gravity points down.
Simplified diagram of the catheter in a magnetic field. Coil 1 is the square side coil. Coil 2 and 3 are the axial coils. B1 = 1.5 T. The direction of the magnetic field points right, while the direction of the gravity points down.